JP4112967B2 - Scoring system and input symbol recognition system using electronic pen, scoring processing program, and input symbol recognition program - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a scoring system that uses an electronic pen to score test answers and the like.
[0002]
[Prior art]
At schools, prep schools, and cram schools, mock tests are conducted for students. The student writes the answer on the answer sheet, the answer sheet is collected, and the grader writes the scoring result on the answer sheet with a red pen or the like. In general, the scoring results are written on the answer sheet for each question as scoring symbols such as a circle “◯”, a cross “X”, and a sunk “Δ”.
[0003]
[Problems to be solved by the invention]
In order to effectively use the tests conducted at schools and private schools, etc., detailed results for each question such as "Which student made a mistake in which question" and "What is the correct answer rate for that question?" Need to be recorded, aggregated and analyzed. However, in the problem of description formulas, scoring and data conversion of scoring results are separate tasks, and so far, complicated work such as copying the scoring results to the mark sheet again has been required. For this reason, it takes time and effort to collect and analyze the scoring results, and there is a possibility that errors such as mistakes in copying the scoring results may occur. This was a big problem when there were a large number of examinees and subjects such as mock tests conducted nationwide.
[0004]
The present invention has been made in view of the above points, and by using an electronic pen, scoring that can efficiently and accurately acquire scoring results such as simulation tests and perform processing such as tabulation The problem is to provide a system.
[0005]
[Means for Solving the Problems]
  In one aspect of the present invention, in a scoring system using an electronic pen, data input means for receiving scoring data input to an answer sheet using the electronic pen, a scoring symbol and a scoring symbol from the scoring dataCorrect the scoring marksStroke extracting means for extracting a stroke corresponding to a correction symbol, a symbol information storage unit for storing symbol information indicating the characteristics of each scoring symbol and correction symbol, and corresponding to the extracted stroke by referring to the symbol information Recognize the symbolIn one answer column, the recognized stroke is 1 If there is more than one stroke, the scoring symbol of the stroke with the latest input time is used as the recognition result.Recognizing means.
[0006]
  According to the above scoring system, a grader enters a scoring symbol such as a circle or cross with an electronic pen on an answer sheet on which an examinee has entered an answer, and grades. The stroke of the scoring symbol drawn on the answer sheet is acquired as scoring data and input to the scoring system. In the scoring system, strokes corresponding to scoring symbols and correction symbols are extracted from scoring data, and the strokes are recognized by referring to symbol information indicating the characteristics of the individual scoring symbols and correction symbols. As a recognition result, a scoring symbol or a correction symbol corresponding to the stroke is specified. Based on the recognition result thus obtained, a scoring result is specified and output. Therefore, the scorer simply creates a scoring symbol or the like on the answer sheet with the electronic pen, and the scoring result data is generated and can be used for subsequent tabulation or analysis.
  Further, according to the above scoring system, if there is one stroke entered in the answer column, it may be determined that it is a scoring symbol, but there are multiple strokes entered in the answer column. Determines that the last input is the correct scoring result. Thus, even when a plurality of strokes are entered in one answer column, a correct scoring result can be obtained.
[0007]
  In one aspect of the present invention, in a scoring system using an electronic pen, a data input means for receiving scoring data input to an answer sheet using the electronic pen, and a scoring symbol and a scoring symbol from the scoring data. Stroke extracting means for extracting a stroke corresponding to a correction symbol to be corrected, a symbol information storage unit for storing symbol information indicating characteristics of each scoring symbol and correction symbol, and a stroke extracted with reference to the symbol information If there is only one recognized stroke in one answer column, the scoring symbol for that stroke is taken as the recognition result, and if there are multiple recognized strokes, it is recognized as a correction symbol. The stroke with the newest input time is the stroke other than the stroke that overlaps with the stroke that was recognized as a correction symbol. Comprising a recognition means to recognize the results click scoring symbol, a.
  According to the above scoring system, all strokes entered for one answer field in the answer sheet are extracted. If there is one stroke entered in the answer column, it is determined that it is a scoring symbol. If there are a plurality of strokes entered in the answer column, first, all the strokes that overlap with the strokes of the correction symbols are invalidated, and the remaining strokes are used as scoring results. If there are a plurality of remaining strokes, it is assumed that the last input is the correct scoring result. Thus, even when a plurality of strokes are entered in one answer column, a correct scoring result can be obtained. In particular, since the stroke overlapping with the correction symbol is invalidated, the correction result can be correctly recognized.
  In one aspect of the above scoring system, the scoring symbol and the correction symbol have a shape that can be input with one stroke by the electronic pen. Accordingly, one scoring symbol or correction symbol is always expressed by one stroke, and it is not necessary to analyze the correspondence between a plurality of strokes and the scoring symbol or correction symbol.
[0008]
  In another aspect of the above scoring system, the control means controls the stroke extracting means to extract all strokes passing through one answer column in the answer sheet, and the extracted strokes. Among them, the selection means for selecting the stroke whose start point is included in the answer column, and the selected strokeOn the basis of the,Output means for outputting the recognition result as a scoring result.
[0009]
According to this aspect, all the strokes entered for one answer column in the answer sheet are extracted, and the recognition result of the newest stroke is used as the scoring result. If there is only one stroke entered in the answer column, it may be determined that it is a scoring symbol, but if there are multiple strokes entered in the answer column, the last one entered is correct. It is determined that it is a scoring result. Thus, even when a plurality of strokes are entered in one answer column, a correct scoring result can be obtained.
[0010]
  In another aspect of the above scoring system, the recognizing means executes a recognition process on the selected strokes in order from the newest input time. Usually, when correction is considered, there is a high possibility that the last input stroke is a correct scoring symbol. Therefore, rather than recognizing an old stroke in time and excluding it as a correction target, by performing recognition processing from the newest input time, scoring symbol recognition processing will not be performed wastefully. Efficiency.
[0011]
  In another aspect of the present invention, the scoring processing program is executed on a computer to receive scoring data input to an answer sheet using an electronic pen, from the scoring data, Stroke extracting means for extracting a stroke corresponding to a correction symbol for correcting the scoring symbol, symbol information storage means for storing symbol information indicating the characteristics of each scoring symbol and the correction symbol, extracted with reference to the symbol information When a symbol corresponding to a stroke is recognized and there is only one recognized stroke in one answer column, the scoring result of the stroke is taken as a recognition result, and when there are a plurality of recognized strokes, The computer is caused to function as a recognition unit that uses a new stroke scoring result as a recognition result.
[0012]
  In another aspect of the present invention, a scoring processing program is executed on a computer to receive scoring data input to an answer sheet using the electronic pen, and a scoring symbol from the scoring data. And a stroke extracting means for extracting a stroke corresponding to the correction symbol for correcting the scoring symbol, a symbol information storage unit for storing symbol information indicating characteristics of each scoring symbol and the correction symbol, and extracted by referring to the symbol information. If there is only one recognized stroke in one answer column, the scoring result of that stroke is taken as the recognition result. If there are multiple recognized strokes, Of the strokes other than the recognized stroke and the stroke that overlaps with the stroke recognized as the correction symbol, the input time is the most Causing the computer to function as a recognition means for the recognition result scoring results of Shii stroke.
[0013]
  The above scoring system can be realized by executing the above scoring processing program on a computer.
[0014]
  In another aspect of the present invention, in an input symbol recognition system for recognizing a symbol input using an electronic pen, data input means for receiving input data input to an electronic pen form using the electronic pen; A stroke extraction means for extracting an input symbol and a stroke corresponding to a correction symbol for correcting the input symbol from the input data; a symbol information storage unit for storing symbol information indicating the characteristics of each input symbol and the correction symbol; Referring to the symbol information, a symbol corresponding to the extracted stroke is recognized, and when one stroke is recognized in one input field, the input symbol of the stroke is recognized as a recognition result and recognized. In the case where there are a plurality of strokes, there is provided a recognizing means that recognizes the input symbol of the stroke with the latest input time as a recognition result.
[0015]
  According to the above input symbol recognition system, the user enters a symbol such as a circle or a cross with the electronic pen as necessary on the electronic pen form. The stroke of the symbol drawn on the electronic pen form is acquired as input data and input to the input symbol recognition system. The input symbol recognition system extracts a stroke corresponding to the input symbol from the input data, and recognizes the stroke by referring to symbol information indicating the characteristics of each input symbol. As a recognition result, an input symbol corresponding to the stroke is obtained.
  Furthermore, according to the input symbol recognition system described above, if there is one stroke entered in the answer column, it may be determined that it is an input symbol, but there are multiple strokes entered in the answer column. If there is, it is determined that the last input is the correct recognition result. Thus, even when a plurality of strokes are entered in one answer column, a correct scoring result can be obtained.
[0016]
  In another aspect of the present invention, in an input symbol recognition system for recognizing a symbol input using an electronic pen, data input means for receiving input data input to an electronic pen form using the electronic pen; A stroke extraction means for extracting an input symbol and a stroke corresponding to a correction symbol for correcting the input symbol from the input data; a symbol information storage unit for storing symbol information indicating the characteristics of each input symbol and the correction symbol; Referring to the symbol information, a symbol corresponding to the extracted stroke is recognized, and when one stroke is recognized in one input field, the input symbol of the stroke is recognized as a recognition result and recognized. If there are multiple strokes, the stroke other than the stroke recognized as the correction symbol and the stroke overlapping the stroke recognized as the correction symbol Of, and a recognition means for the recognition result input symbol of the most recent stroke input time.
[0017]
  According to the above input symbol recognition system, the user enters a symbol such as a circle or a cross with the electronic pen as necessary on the electronic pen form. The stroke of the symbol drawn on the electronic pen form is acquired as input data and input to the input symbol recognition system. The input symbol recognition system extracts a stroke corresponding to the input symbol from the input data, and recognizes the stroke by referring to symbol information indicating the characteristics of each input symbol. As a recognition result, an input symbol corresponding to the stroke is obtained.
  Furthermore, according to the above input symbol recognition system, all the strokes that have been entered are extracted. If there is one stroke entered in the answer column, it is determined that it is an input symbol. If there are a plurality of strokes entered in the answer column, first, all the strokes that overlap the strokes of the correction symbols are invalidated, and the remaining strokes are used as the recognition results. If there are a plurality of remaining strokes, it is assumed that the last input is the correct recognition result. Thus, a correct recognition result can be obtained even when a plurality of strokes are entered in one answer column. In particular, since the stroke overlapping with the correction symbol is invalidated, the correction result can be correctly recognized.
[0018]
  In another aspect of the present invention, the input symbol recognition program is executed on a computer to receive input data input to the electronic pen form using the electronic pen, from the input data, Stroke extraction means for extracting a stroke corresponding to an input symbol and a correction symbol for correcting the input symbol, symbol information storage means for storing symbol information indicating the characteristics of each input symbol and correction symbol, referring to the symbol information, Recognize the symbol corresponding to the extracted stroke,When there is one recognized stroke in one input field, the input symbol of the stroke is taken as the recognition result, and when there are a plurality of recognized strokes, the input symbol of the latest stroke at the input time is taken as the recognition result. DoThe computer is caused to function as recognition means.
[0019]
In another aspect of the present invention, the input symbol recognition program is executed on a computer to receive input data input to the electronic pen form using the electronic pen, from the input data, Stroke extracting means for extracting a stroke corresponding to an input symbol and a correction symbol for correcting the input symbol, a symbol information storage unit for storing symbol information indicating characteristics of each input symbol and the correction symbol, and referring to the symbol information, Recognize the symbol corresponding to the extracted stroke, and if there is only one recognized stroke in one input field, the input symbol of the stroke is taken as the recognition result, and if there are multiple recognized strokes, correction Input time of strokes other than strokes recognized as symbols and strokes recognized as correction symbols Wherein causing a computer to function as the newest stroke identification means as a recognition result input symbols.
  The above input symbol recognition system can be realized by executing the above input symbol recognition program on a computer.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
  Preferred embodiments of the present invention will be described below with reference to the drawings. First of all, bookEmbodimentAn outline of an electronic pen used as an input device in the scoring system will be described.
[0021]
[Electronic pen]
FIG. 1 is a diagram schematically showing how the electronic pen is used, and FIG. 2 is a functional block diagram showing the structure of the electronic pen. As shown in FIG. 1, the electronic pen 10 is used in combination with a dedicated paper 20 on which a dot pattern is printed. The electronic pen 10 includes a pen tip portion 17 similar to a normal ink pen, and a user writes characters on the dedicated paper 20 in the same manner as a normal ink pen.
[0022]
As shown in FIG. 2, the electronic pen 10 includes a processor 11, a memory 12, a Bluetooth transceiver 13, a battery 14, an infrared LED 15, a camera 16, and a pressure sensor 18 therein. The electronic pen 10 includes an ink cartridge (not shown) as a component similar to a normal ink pen.
[0023]
The electronic pen 10 does not convert the locus of the ink drawn on the dedicated paper 20 by the pen tip unit 17, but converts the locus coordinates of the movement of the electronic pen 10 on the dedicated paper 20 into data. While the infrared LED 15 illuminates the vicinity of the pen tip 17 on the dedicated paper 20, the camera 16 reads the dot pattern printed on the dedicated paper 20 and converts it into data. That is, the electronic pen 10 can acquire a stroke generated when the user moves the electronic pen 10 on the dedicated paper 20 as image data or vector data.
[0024]
The pressure sensor 18 detects the pressure applied to the pen tip portion 17 when the user writes characters on the dedicated paper with the electronic pen 10, that is, the writing pressure, and supplies the detected pressure to the processor 11. The processor 11 switches on / off the infrared LED 15 and the camera 16 based on the writing pressure data given from the pressure sensor 18. That is, when the user writes characters or the like on the dedicated paper 20 with the electronic pen 10, writing pressure is applied to the pen tip portion 17. Therefore, when the writing pressure exceeding the predetermined value is detected, it is determined that the user has started the description, and the infrared LED 15 and the camera 16 are operated.
[0025]
  The camera 16 reads the dot pattern on the dedicated paper 20 and supplies the pattern data to the processor 11. The processor 11 calculates X on the dedicated paper 20 from the supplied dot pattern.,Y coordinate is calculated.
[0026]
  The processor 11 reads the writing pressure array data and the X,Y coordinate data is acquired and stored in the memory 12 in association with a time stamp (time information). Therefore, data corresponding to the description content of the user is stored in the memory 12 in time series. The capacity of the memory 12 can be about 1 Mbyte, for example.
[0027]
All the acquired data is held in the memory 12 until a transmission instruction is given by the user. When the user gives a transmission instruction, the Bluetooth transceiver 13 transmits the data in the memory 12 to the reception terminal 25 within a predetermined distance from the electronic pen 10. Basically, once a transmission instruction is given, the electronic pen 10 transmits all the data stored in the memory 12 to the receiving terminal 25, so that the memory 12 is cleared. Therefore, when it is desired to transmit the same information to the receiving terminal 25 once again after transmission, the user needs to describe again on the dedicated paper 20. In this case, the user only has to trace characters written on the dedicated paper 20 with an ink pen.
[0028]
The electronic pen 10 itself does not include a function button such as a transmission button, and a transmission instruction and other instructions are performed by a user checking the dedicated box provided at a predetermined position on the dedicated paper 20 with the electronic pen 10. Executed. A transmission instruction is associated with the position coordinates of the dedicated box in advance. When the processor 11 receives the position coordinates of the dedicated box, the processor 11 supplies the data in the memory 12 to the Bluetooth transceiver 13 and transmits the data to the reception terminal 25. Let it be done. Although the electronic pen 10 does not have a display or a button, the completion of data transmission can be indicated by vibration of the electronic pen.
[0029]
The battery 14 is for supplying power to each element in the electronic pen 10, and the electronic pen 10 itself can be turned on / off by a cap (not shown) of the electronic pen, for example.
[0030]
As described above, the electronic pen 10 has a function of acquiring coordinate data and writing pressure data corresponding to characters and the like described on the dedicated paper 20 by the user and transmitting them to the reception terminal 25 nearby. Since the pen tip portion 17 is a normal ink pen, the content described on the dedicated paper 20 remains as an original original. That is, at the same time as describing the original paper, its contents can be digitized in the form of coordinate data in real time.
[0031]
According to the standard function of the electronic pen 10, data obtained by the electronic pen 10 is in principle in the form of coordinate data or vector data, and is not text data. However, as a standard function, the electronic pen 10 has a function of converting text into alphanumeric characters by describing it in a dedicated area provided on the dedicated paper 20. Of course, it is possible to obtain text data from the coordinate data or vector data transmitted from the electronic pen 10 using the character recognition application at the reception terminal 25 or the like.
[0032]
Also, the electronic pen 10 can hold property information (pen information and pen owner information) regarding the pen itself and its owner, and can be referred to from an application. As the pen information, a battery level, a pen ID, a pen manufacturer number, a pen software version, a subscription provider ID, and the like can be held. The pen owner information can hold nationality, language, time zone, email address, free memory capacity, name, address, fax / phone number, mobile phone number, and the like.
[0033]
In the above example, data is transmitted from the electronic pen 10 to the reception terminal 25 by Bluetooth wireless transmission. Instead, for example, wired data transmission using a cable, Data transmission from the electronic pen 10 to the reception terminal 25 can be performed by various methods, such as data transmission by contact with a terminal provided in a part of the reception terminal 25.
[0034]
  Next, X of the contents described by the user with the electronic pen,A method for acquiring Y data will be described. As described above, a predetermined dot pattern is printed on the dedicated paper 20. The camera 16 of the electronic pen 10 does not read the locus of ink described on the dedicated paper 20 by the user, but reads the dot pattern on the dedicated paper 20. In fact, as shown in FIG. 1, the illumination area by the infrared LED 15 and the imaging area of the camera 16 (located in the illumination area) are deviated from the position where the pen tip portion 17 contacts the dedicated paper 20.
[0035]
The dot pattern is printed with a special ink containing carbon, and the camera 16 can recognize only the pattern with the special ink. Even if ruled lines or frames are printed on dedicated paper with inks other than dedicated ink (not including carbon), the electronic pen does not recognize them. Therefore, when creating forms such as various application forms using dedicated paper, input frames, ruled lines, cautions, etc. are printed with ink other than dedicated ink.
[0036]
In the dot pattern, as illustrated in FIG. 3, the position of each dot is associated with data. In the example of FIG. 3, the 2-bit information of 0 to 3 is displayed by shifting the dot position vertically and horizontally from the reference position (intersection of vertical and horizontal lines) of the grid. The position coordinates on the dedicated paper are determined by the combination of the information expressed in this way. As illustrated in FIG. 4A, 36 dots are arranged in a grid within a range of 2 mm in length and width, and the data array (FIG. 4B) indicated by these dots is displayed on the dedicated paper. Are associated with the position coordinates. Therefore, when the camera 16 of the electronic pen 10 captures a dot pattern as shown in FIG. 4A, the processor 11 changes the data array shown in FIG. 4B based on the dot pattern data input from the camera 16. The position coordinates on the dedicated paper (that is, where the dot pattern is located on the dedicated paper) corresponding to the acquired position are calculated in real time. The minimum unit for recognizing the dot pattern is 2 mm × 2 mm, and the camera 16 takes about 100 shots per second.
[0037]
Next, the dedicated paper will be described. An example of the structure of the dedicated paper is shown in FIG. As shown in the figure, the dedicated paper 20 has a dot pattern 32 printed on a mount 30 and a design 34 such as a ruled line printed thereon. The mount 30 is usually paper, and the dot pattern 32 is printed with dedicated ink containing carbon as described above. Also, the design 34 is printed with normal ink or the like. The dot pattern and the design may be printed at the same time, or one of them may be printed first.
[0038]
An example of the design 34 is shown in FIG. FIG. 6 shows an example of a certain application form 36 in which a plurality of entry fields 38 and a transmission box 39 are printed. Although not clearly shown in FIG. 6, actually, a dot pattern is printed on the entire surface of the application form 36, and an entry field 38 and a transmission box 39 are printed thereon with ordinary ink. The user can enter the necessary items in each entry field 38 of the application form 36 using the electronic pen 10 in the same manner as a conventional application form without being aware of the dot pattern.
[0039]
The area on the dedicated paper 20 can be roughly divided into two types. One is an entry area, in which the content described by the electronic pen 10 is handled as information as it is. In the example of FIG. 6, a plurality of entry fields 38 correspond to this. The other is a functional element, and when the corresponding area is checked with the electronic pen 10, actions, instructions, etc. defined in advance for the area are executed. The transmission box 39 in the example of FIG. 6 corresponds to this.
[0040]
The transmission box 39 is used when giving an instruction to transmit data stored in the electronic pen 10 to the nearby receiving terminal 25 as described above. When the user checks the transmission box 39 with the electronic pen 10, the electronic pen 10 reads the dot pattern in the transmission box. The pattern is associated with a transmission instruction, and the processor 11 in the electronic pen 10 issues a transmission command for data stored in the memory 12 to the Bluetooth transceiver 13.
[0041]
The dot pattern is normally assigned for each application (paper type). In other words, the dot patterns in a certain application form do not overlap in one sheet, but the same dot pattern is printed on the same application form. Therefore, when the user inputs necessary items with the electronic pen 10, it can be specified from the coordinate data on the application form which item of the application form the input item is for.
[0042]
As described above, by printing a predetermined design on the dedicated paper on which the dot pattern is printed, various application forms using the dedicated paper can be created. If the user uses the electronic pen 10 and fills in necessary items in a normal manner, the electronic data is automatically acquired.
[0043]
In the above example, the dot pattern is printed on the dedicated paper with carbon-containing ink. However, the dot pattern can be printed on ordinary paper using a printer and carbon-containing ink. Furthermore, the design on the dedicated paper can also be formed by a printer instead of printing. When dot patterns are formed on paper by a printer, different dot patterns can be formed on each sheet. Therefore, it is possible to identify and distinguish each of these sheets by the difference in the formed dot patterns.
[0044]
In the present specification, the term “printing” has a concept including not only normal printing but also printing by a printer.
[0045]
Next, transmission processing of data acquired by the electronic pen will be described. As described above, the communication function of the electronic pen 10 is based on Bluetooth, and with respect to a service server that handles data input to the dedicated paper 20 (if it is a specific application form, it is the application server). Thus, data cannot be transmitted directly from the electronic pen 10. Therefore, the data acquired by the electronic pen 10 is transmitted from the reception terminal 25 to the service server.
[0046]
The processing at that time will be described with reference to FIG. The data acquired by the electronic pen 10 is mainly data of items input by the user, but usually does not include information on where the service server that is the transmission destination of the data is. Instead, information specifying the application or service related to the dedicated paper is included in the dot pattern on the dedicated paper, and the information is acquired from the dedicated paper during the user's input operation. Therefore, the reception terminal 25 that has received the input data from the electronic pen 10 first makes an inquiry to the inquiry server 26 to which service server 27 the data input to the dedicated paper should be transmitted. The inquiry server 26 has information on the corresponding service server for each dedicated paper, and in response to an inquiry from the reception terminal 25, information (URL or the like) of the service server 27 that performs a service related to the dedicated paper. Reply to the reception terminal 25. Then, the reception terminal 25 transmits the input data acquired from the electronic pen to the service server 27.
[0047]
In the above example, the terminal device 25, the inquiry server 26, and the service server 27 are separately configured. However, some or all of them may be configured as one device.
[0048]
[Scoring system]
Next, a scoring system according to an embodiment of the present invention will be described. In this scoring system, a grader scores using an answer sheet in which answers are written by a test taker in a mock test or the like. FIG. 7 shows a schematic configuration of the scoring system.
[0049]
The answer sheet 4 is created as the above-mentioned dedicated form, and a test taker enters an answer to the question on the answer sheet 4 using a normal pencil or pen as a writing instrument instead of an electronic pen. After the mock test, the answer sheet 4 is collected and distributed to the graders. The grader performs a scoring operation using the electronic pen 10. Since the electronic pen 10 used by the scorer is filled with, for example, red ink in the ink unit, the scoring result is written on the answer sheet 4 with the red pen.
[0050]
  The grader uses the electronic pen 10 on the answer sheet 4PickWhen a dot symbol is entered, the electronic pen 10 obtains stroke data (hereinafter also referred to as “scoring data”) corresponding to the entered scoring symbol, and temporarily stores it in the memory 12 in the electronic pen 10. The scoring data is transmitted to the terminal device 25. The terminal device 25 can be, for example, a device such as a personal computer, a mobile phone, or a PDA. The terminal device 25 receives scoring data from the electronic pen 10 and transmits it to the processing server 3 through the network 2.
[0051]
The processing server 3 is a server that performs scoring result recognition processing, scoring result totaling / analysis processing, and the like. When receiving the scoring data from the terminal device 25, the processing server 3 executes a scoring result recognition process and obtains a scoring result. Further, the processing server 3 also executes scoring result summarization processing and analysis processing as necessary.
[0052]
As a practical system configuration, a grader such as a school or cram school teacher uses the electronic pen 10 and the terminal device 25 to score, and sends the scoring data to the processing server 3 in the school or cram school. Can be configured. Alternatively, the processing server 3 may be operated by a company other than the school or the cram school, and the obtained scoring results, the total results, etc. may be provided to the school or the cram school.
[0053]
FIG. 8 shows a functional configuration of the processing server 3. As illustrated, the processing server 3 includes a stroke extraction unit 50, a character recognition unit 51, a symbol information storage unit 52, a scoring result storage unit 53, and a scoring result totaling processing unit 54. Each of these components is actually realized by executing a program prepared in advance by the CPU in the processing server 3 or the like.
[0054]
The stroke extraction unit 50 extracts the stroke data of each scoring symbol from the scoring data received from the terminal device 25 (including the scoring symbol stroke data entered by the grader) and sends it to the character recognition unit 51. The character recognition unit 51 refers to the symbol information stored in advance in the symbol information storage unit 52 and recognizes whether the stroke data extracted by the stroke extraction unit 50 corresponds to a scoring symbol or a correction symbol.
[0055]
Specifically, the symbol information storage unit 52 stores the characteristics of stroke data of each scoring symbol and correction symbol as symbol information. The determination result obtained by the character recognition unit 51 is information indicating which scoring symbol (maru, x, etc.) the stroke data is, and after being temporarily stored in the scoring result storage unit 53, the scoring is performed. The result is sent to the result totaling processing unit 54. The scoring result totaling processing unit 54 sums up the scoring results for the answers of a predetermined unit, for example, a predetermined number of students, for each question, performs necessary analysis, and outputs the total data. The aggregated data is used for student performance analysis in schools and cram schools.
[0056]
Next, the scoring symbols will be described. There are points to consider when determining the scoring symbol. The first point is that there are individual differences for each grader in the form of the scoring symbol used by the grader. Normally, circle “○” and sankaku “△” are entered in one stroke, but “X” or “Le” may be used for X, and in the case of “×” it is 2 strokes. . If a one-stroke symbol and a two-stroke symbol are mixed in a scoring symbol, it is necessary to determine which stroke a single scoring symbol is composed of, but it is difficult to automatically determine this. Therefore, in this embodiment, the scoring symbols are all one-stroke symbols. Thus, one stroke corresponds to one scoring symbol, and it is not necessary to determine stroke data corresponding to the scoring symbol.
[0057]
  The second point is that it is necessary to correct a mistake in entering a scoring symbol. For the grader, the scoring symbol once entered was incorrect (for example, the answer was originally incorrect)"/"It is necessary to make it possible to correct it to a correct scoring symbol. Therefore, in the present embodiment, a correction symbol for correcting the once entered scoring symbol is employed.
[0058]
An example of scoring symbols determined in consideration of the above points is shown in FIG. Note that the arrows on the scoring symbols shown in FIGS. 9A to 9D indicate the direction of the trajectory of the electronic pen 10 for the sake of convenience. Absent. FIG. 9 (a) is an example of a circle entered when the answer is correct. As the characteristics of the Maru's scoring symbol, for example, a predetermined condition such as that the stroke is drawn with one stroke, is substantially circular, and that the start point and end point of the stroke are close to each other is stored as symbol information. FIG. 9 (b) shows an example of filling in a sakaku. The characteristics of the scoring symbol of the sunk are stored as symbol information such as, for example, that the stroke is drawn with a single stroke, that there are two bent points of the stroke, and that the start point and end point of the stroke are close. FIG. 9 (c) is an example of the entry of a scoring symbol for a cross. The scoring symbol for a cross is, for example, that the stroke moves from left to right (the start point exists to the left of the end point), the stroke And the like are stored as symbol information.
[0059]
FIG. 9D is an entry example showing correction symbols. Correction is a symbol that is entered to cancel a scoring symbol once it has been entered by the grader. For example, if the grader entered a circle for a certain answer, but it was actually a cross, the grader entered a correction symbol on the graded symbol entered earlier. As a characteristic of the correction symbol, for example, the movement of the stroke from the right to the left (the start point exists to the right of the end point) is stored as the symbol information. The character recognition unit 51 analyzes the characteristics of the stroke data extracted by the stroke extraction unit 50, refers to the symbol information stored in the symbol information storage unit 52, and the stroke corresponds to any scoring symbol or correction symbol. Determine whether.
[0060]
As described above, in this embodiment, each scoring symbol is always constituted by one stroke, and one stroke is always constituted by one scoring symbol, and the correspondence between the stroke and the scoring symbol is automatically determined. It eliminates the need to do. In addition, a correction symbol is provided for correcting a scoring symbol entered by the grader by mistake. The rule for scoring work is to enter correction symbols so as to cross the scoring symbols to be canceled.
[0061]
As for the scoring symbols, as a third point, it should be considered that the scoring symbols entered in the answer column may straddle a plurality of answer columns. Usually, since a plurality of answer fields are provided adjacent to each other on the answer sheet, the scoring symbols entered by the grader for a certain answer field may straddle the adjacent answer fields. This problem can be solved by requiring the grader to enter a scoring symbol so that it fits in the answer column, but in reality, the grader scores a large number of answer sheets in a short time. It is difficult to quickly and accurately enter a scoring symbol in the answer column.
[0062]
Therefore, in this embodiment, it is a rule that the scoring symbol starts to be drawn from within the answer column that is the subject of scoring. As a result, for example, if the starting point of a stroke corresponding to a scoring symbol is within the answer field that is the target of scoring, the middle of the stroke may protrude beyond the answer field or overlap the scoring symbol entered in the adjacent answer field Even if it is, the target scoring symbol can be specified in each answer column.
[0063]
Next, an example of scoring symbols entered in the answer column will be described. FIG. 10 shows an example of scoring symbols entered by the grader for a part of the answer sheet. In addition, FIG. 11 shows an example of scoring symbol entries shown in FIG. 10 arranged in time. In the example of FIG. 10, as shown in FIG. 11, first, a scoring symbol “◯” is entered in the entry field 4 (1) (1). The data acquired by the electronic pen 10 is referred to as stroke data D1. Next, the correction symbol is entered as stroke data D2 in the same entry field 4 (1) (1), and "△" is entered as stroke data D3 in the same entry field 4 (1) (1). Has been.
[0064]
  Thereafter, the scoring symbol “△” is entered in the entry field 4 (2) (1) (stroke data D4), and the scoring symbol “O” is entered in the entry field 4 (3) (1) (stroke data D5). Scoring symbol in entry field 4 (4) (1)"/"Is filled in. Therefore, at that time, the data D1 to D6 are stored in the memory 12 in the electronic pen 10. As described above, since the electronic pen 10 stores data in the memory together with the time stamp, these stroke data D1 to D6 are accompanied by time stamps indicating respective entry times. Therefore, the processing server 3 that has received the stroke data D1 to D6 as scoring data can recognize the input order of each stroke data by referring to the time stamp of each stroke data.
[0065]
[Scoring result recognition processing]
Next, the scoring result recognition process will be described. The scoring result recognition process is a process of recognizing a scoring symbol entered by the grader using the electronic pen 10 in the answer column and outputting the recognition result as a scoring result. Is realized by executing a program prepared in advance and functioning as the stroke extraction unit 50, the character recognition unit 51, and the like shown in FIG. The scoring result recognition process described below is executed for each answer column on the answer sheet 4.
[0066]
  (First embodiment)
  First, a first example of scoring result recognition processing will be described. In the first embodiment, basically, the stroke entered last in the answer column to be processed is valid. However, since it is not possible to determine which of the multiple scoring symbols was drawn last on the answer sheet, the correction is made by entering the correction symbol for the above-mentioned one stroke.Yeah.
[0067]
FIG. 12 is a flowchart of the first embodiment of the scoring result recognition process.
[0068]
First, the CPU or the like of the processing server 3 functions as the stroke extracting unit 50, and extracts all strokes that pass through the answer column to be processed (step S2). If no stroke is extracted (step S4; No), the processing server 3 determines that there is no entry in the answer column to be processed, and ends the processing. On the other hand, when a stroke is extracted (step S4; Yes), the processing server 3 selects only the stroke whose start point is included in the answer column from the extracted stroke (step S6). This is because, as described above, when a scoring symbol is entered, it is ruled that the scoring symbol is entered so that the start point of the stroke is located in the target answer column. Therefore, when such a stroke does not exist, the process ends (step S8; No).
[0069]
On the other hand, when a stroke having a start point in the answer column to be processed is selected (step S8; Yes), it is determined whether or not there are a plurality of such strokes. When there is only one stroke starting from the answer column to be processed (step S10; No), the stroke indicates a scoring symbol. This is because, as described above, it is determined that one scoring symbol is always expressed by one stroke. Therefore, the character recognition unit recognizes the stroke (step S12), and if the recognition result is a scoring symbol, the scoring symbol is output as a scoring result (step S14).
[0070]
On the other hand, when there are a plurality of strokes whose start points are present in the answer column (step S10; Yes), the processing server 3 refers to the time stamps of those strokes and performs character recognition processing in order from the new stroke on the time axis ( Step S18). First, it is determined whether or not the recognition result of the stroke is a correction symbol (step S20). If the recognition result is a correction symbol (step S20; Yes), it is determined whether or not there is a next stroke, that is, a stroke older than that (step S24), and if there is, return to step S18. The character recognition of the stroke is executed. If it is determined in step S20 that the stroke recognition result is not a correction symbol, the recognition result is stored (step S22), and the recognition result is output as a scoring result (step S26).
In this way, in steps S18 to S24, the correction symbol is excluded from the plurality of strokes existing in the answer column to be processed, and the scoring symbol corresponding to the stroke written last in time is output as the recognition result. .
[0071]
  Correction symbolOther thanIf there is no stroke (step S24; No), it is determined that there is no grading result in the answer column (for example, the grader has erroneously entered a grading symbol in the answer column that does not require grading), and processing Exit.
[0072]
  (Second embodiment)
  Next, a second example of scoring result recognition processing will be described. In the second embodiment, the correction symbolByThe scoring symbol to be corrected,Judged by overlapping strokes. That is, the scoring symbol that overlaps (intersects) the detected correction symbol stroke is invalidated as having been corrected by the correction symbol.
[0073]
Furthermore, in the second embodiment, character recognition is performed in order from the last stroke entered on the time axis. Normally, when a scoring symbol is corrected, the scoring symbol entered after the correction symbol is entered is valid, and the correction symbol cannot correct a stroke entered later than itself. Therefore, after performing character recognition processing in order from the oldest stroke in time, the recognition processing of the stroke canceled by correction is more effective when the recognition processing is performed from the newer stroke in time than the recognition result is invalidated by the correction symbol. Is not wasted, and the processing efficiency can be improved.
[0074]
FIG. 13 shows a flowchart of scoring result recognition processing according to the second embodiment. In the scoring result recognition process shown in FIG. 13, steps S26 to S38, that is, the process when only one stroke exists in the answer column to be processed is the case of the first embodiment shown in FIG. Since it is the same as that, description is abbreviate | omitted.
[0075]
In step S34, when there are a plurality of strokes in the answer column to be processed (step S34; Yes), the character recognition unit 51 performs character recognition of the strokes one by one in order from the new stroke on the time axis. (Step S42). Then, it is determined whether or not the recognized symbol is a correction symbol (step S44). If it is a correction symbol (step S44; Yes), the stroke overlapping the stroke of the correction symbol is invalidated (step S52). As described above, since the stroke overlapping with the correction symbol is the stroke of the scoring symbol to be corrected, it is invalidated and excluded from the target of the subsequent character recognition processing. As a result, the strokes canceled by the correction are not wastefully recognized, and the processing efficiency can be improved.
[0076]
On the other hand, when the recognized stroke is not a correction symbol (step S44; No), since the stroke is a scoring symbol, it is stored as a scoring result (step S46). Then, it is determined whether or not there is a next stroke, that is, a stroke that is older in time (step S48), and if it exists, the process returns to step S42 to repeat the same processing. In this way, when there is no next stroke (step S48; No), normally only one recognition result is stored, so that the recognition result is output as a scoring result (step S50). However, if the grader forgets to enter the correction symbol, the recognition result of a plurality of scoring symbols is obtained and stored. In that case, the recognition result newly entered in time is output as a scoring result (step S50).
[0077]
As described above, in the second embodiment, the scoring symbol whose stroke overlaps with the correction symbol is invalidated, so that the correction can be detected correctly. In addition, since the character recognition process is performed in order from the newly entered stroke in time, it is possible to prevent the character recognition of the stroke of the scoring symbol canceled by the correction, and the processing efficiency can be improved.
[0078]
Moreover, since the method of invalidating the scoring symbol that overlaps with the correction symbol is adopted, it is possible to correctly recognize the correction regardless of the temporal relationship between the scoring symbol entry and the correction symbol entry. For example, even when two different scoring symbols are entered and then one of them is corrected, the scoring symbol that overlaps the correction symbol is invalidated, so that the grader does not need to worry about the order of entering the correction symbols.
[0079]
In the second embodiment, since the stroke of the correction symbol is recognized in the same manner as the scoring symbol, it is necessary that the correction symbol also has its start point in the answer column.
[0080]
[Modification]
In the second embodiment, the character recognition processing is performed in order from the newest stroke in step S42. However, the character recognition processing may be performed from the oldest stroke in time. Even in that case, the correction can be correctly determined by recognizing the correction symbol and invalidating the scoring symbol that overlaps the correction symbol.
[0081]
The scoring symbols and correction symbols shown in FIG. 9 are merely examples, and other symbols and shapes may be used as scoring symbols as long as they can be entered with one stroke.
[0082]
  In the above embodiment,,Although applied to scoring systems such as mock tests,It can also be applied to input symbol recognition processing for forms such as various application forms. In other words, when a user inputs a predetermined symbol to an electronic pen form such as various application forms and corrects the input symbol as necessary,It is possible to recognize a correct input symbol in consideration of the presence or absence of correction.
[0083]
【The invention's effect】
As described above, according to the present invention, the scoring result entered by the grader using the electronic pen can be automatically acquired as data. Therefore, the scoring results can be collected and analyzed efficiently.
[Brief description of the drawings]
FIG. 1 is a diagram schematically illustrating how an electronic pen is used.
FIG. 2 is a functional block diagram illustrating a structure of an electronic pen.
FIG. 3 is a diagram illustrating a method of expressing information by a dot pattern printed on dedicated paper.
FIG. 4 shows an example of a dot pattern and corresponding information.
FIG. 5 shows the structure of a form composed of dedicated paper.
FIG. 6 shows an example of an electronic pen form.
FIG. 7 is a diagram showing a schematic configuration of a scoring system according to the present invention.
8 is a diagram showing functional blocks of a processing server of the scoring system shown in FIG.
FIG. 9 shows an example of scoring symbols.
FIG. 10 shows an example of scoring on an answer sheet.
FIG. 11 shows stroke data acquired by the electronic pen during scoring by a grader.
FIG. 12 is a flowchart of a first embodiment of scoring result recognition processing according to the present invention.
FIG. 13 is a flowchart of a second embodiment of scoring result recognition processing according to the present invention.
[Explanation of symbols]
2 network
3 processing server
4 answer sheets
10 Electronic pen
11 processor
12 memory
13 Transceiver
14 battery
25 Reception terminal
50 Stroke extraction unit
51 Character recognition part
52 Symbol information storage unit
53 Scoring result storage
54 Scoring result totaling section

Claims (11)

In the scoring system using an electronic pen,
Data input means for receiving scoring data input to the answer sheet using the electronic pen;
Stroke extraction means for extracting a stroke corresponding to a scoring symbol and a correction symbol for correcting the scoring symbol from the scoring data;
A symbol information storage unit for storing symbol information indicating the characteristics of individual scoring symbols and correction symbols;
With reference to said symbol information, recognizes the symbol corresponding to the extracted stroke, stroke in one answer column, if recognized stroke is one, the recognition result scoring symbol of the stroke, which was recognized And a recognition unit that recognizes a scoring symbol of the newest stroke at the input time as a recognition result . In the scoring system using an electronic pen,
Data input means for receiving scoring data input to the answer sheet using the electronic pen;
Stroke extraction means for extracting a stroke corresponding to a correction symbol for correcting the scoring symbol and the scoring symbol from the scoring data;
A symbol information storage unit for storing symbol information indicating the characteristics of individual scoring symbols and correction symbols;
Referring to the symbol information, the symbol corresponding to the extracted stroke is recognized, and if one recognized column has one recognized stroke, the scoring symbol of the stroke is recognized as the recognition result and recognized. When there are a plurality of strokes, a recognition unit that recognizes a scoring symbol of a stroke with the latest input time among strokes other than a stroke recognized as a correction symbol and a stroke that overlaps a stroke recognized as a correction symbol; A scoring system characterized by comprising. The scoring system according to claim 1 or 2 , wherein the scoring symbol and the correction symbol have a shape that can be input with one stroke by the electronic pen. The control means includes
Means for controlling the stroke extraction means to extract all strokes passing through one answer column in the answer sheet;
Among the extracted strokes, a selection means for selecting a stroke whose start point is included in the answer column;
The scoring system according to any one of claims 1 to 3, further comprising an output unit that outputs a recognition result as a scoring result based on the selected stroke. The scoring system according to any one of claims 1 to 4, wherein the recognizing unit performs a recognition process on the selected strokes in order from the latest input time. By running on the computer,
A data input means for receiving scoring data input on an answer sheet using an electronic pen;
Stroke extraction means for extracting a stroke corresponding to a scoring symbol and a correction symbol for correcting the scoring symbol from the scoring data,
Symbol information storage means for storing symbol information indicating the characteristics of individual scoring symbols and correction symbols,
Recognize the symbol corresponding to the extracted stroke by referring to the symbol information, and if there is one recognized stroke in one answer column, the scoring result of the stroke is recognized as the recognition result scoring program stroke when there is more than, for causing the computer to function as a recognition means for the recognition result scoring results of the most recent stroke of the input time. By running on the computer,
Data input means for receiving scoring data input to the answer sheet using the electronic pen;
Stroke extraction means for extracting a stroke corresponding to a scoring symbol and a correction symbol for correcting the scoring symbol from the scoring data,
A symbol information storage unit for storing symbol information indicating the characteristics of individual scoring symbols and correction symbols;
Referring to the symbol information, a symbol corresponding to the extracted stroke is recognized, and if there is only one recognized stroke in one answer column, the scoring result of the stroke is recognized as a recognition result and recognized. When there are a plurality of strokes, among the strokes recognized as correction symbols and the strokes other than the strokes overlapping with the recognition symbols as the correction symbols, the computer is used as a recognition unit that recognizes the scoring result of the stroke with the newest input time A scoring program characterized in that the function is performed. In an input symbol recognition system that recognizes a symbol input using an electronic pen,
Data input means for receiving input data input to the electronic pen form using the electronic pen;
Stroke extracting means for extracting a stroke corresponding to an input symbol and a correction symbol for correcting the input symbol from the input data;
A symbol information storage unit for storing symbol information indicating characteristics of individual input symbols and correction symbols ;
With reference to said symbol information, recognizes the symbol that corresponds to the extracted strokes, in one input field, if the recognized stroke is one, the recognition result input symbol of the stroke recognition An input symbol recognition system comprising: a recognition unit that recognizes the input symbol of the stroke with the latest input time when there are a plurality of strokes . In an input symbol recognition system that recognizes a symbol input using an electronic pen,
Data input means for receiving input data input to the electronic pen form using the electronic pen;
Stroke extraction means for extracting a stroke corresponding to an input symbol and a correction symbol for correcting the input symbol from the input data;
A symbol information storage unit for storing symbol information indicating characteristics of individual input symbols and correction symbols;
Referring to the symbol information, a symbol corresponding to the extracted stroke is recognized, and when one stroke is recognized in one input field, the input symbol of the stroke is recognized as a recognition result and recognized. Recognizing means for recognizing the input symbol of the stroke having the latest input time among strokes other than the stroke recognized as the correction symbol and the stroke overlapping with the stroke recognized as the correction symbol when there are a plurality of strokes;
An input symbol recognition system comprising: By running on the computer,
A data input means for receiving input data input to the electronic pen form using the electronic pen;
Stroke extracting means for extracting a stroke corresponding to an input symbol and a correction symbol for correcting the input symbol from the input data;
Symbol information storage means for storing symbol information indicating the characteristics of individual input symbols and correction symbols ;
With reference to said symbol information, recognizes the symbol that corresponds to the extracted strokes, in one input field, if the recognized stroke is one, the recognition result input symbol of the stroke recognition If the stroke is more than one input symbol recognition program for causing the computer to function as a recognition means for the recognition result of the input symbol of the newest stroke of the input time. By running on the computer,
A data input means for receiving input data input to the electronic pen form using the electronic pen;
Stroke extraction means for extracting a stroke corresponding to an input symbol and a correction symbol for correcting the input symbol from the input data;
A symbol information storage unit for storing symbol information indicating characteristics of individual input symbols and correction symbols;
The symbol corresponding to the extracted stroke is recognized with reference to the symbol information, and if there is one recognized stroke in one input field, the input symbol of the stroke is recognized. If there are multiple recognized strokes, the input symbol of the stroke with the newest input time out of the strokes that are recognized as correction symbols and strokes that overlap the strokes recognized as correction symbols is regarded as the recognition result. Recognition means
An input symbol recognition program for causing the computer to function as:

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