JPS5818665B2 - optical character reader - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical character reading device, and in particular, a new function for simplifying the work when correcting misreading or jet characters based on the display of reading results on the CRT display device. The present invention relates to an optical character reading device.

In an optical character reader (hereinafter referred to as OCR), it is essential to display the reading results on a CRT display device. You can visually check whether the characters have been read correctly or jetted.

On the other hand, OCR is used to read program entries or forms, etc.
When scanning is performed with
Japanese Patent Laid-Open No. 2003-2013 Sho developed an OCR that has a so-called duplication function that only reads a line once, and when reading each subsequent line, the actual reading of the above area is omitted, and the content read in the first line is automatically repeated. Disclosed in Publication No. 53-29035,
Such OCR has already been put to practical use and has been sufficiently evaluated for its effectiveness in eliminating waste in sheet production.

However, especially in OCR for handwritten characters, misreading or unreadable (reject) may occur on a character by character basis, and especially when reading character data in the field area of the first line with the above-mentioned duplication specification, misreading or rejection may occur. In this case, the result of this misreading or jetting is repeatedly output as duplicate content in the same column area on the next line and below, and it is displayed as is on the CRT, resulting in a large number of misread characters on the CRT screen. This results in the display of the spear jet symbol.

These misread characters and jet symbols can be corrected by using a CRT display device and inputting the correct characters into the corresponding parts using the keyboard according to the display, but with the above-mentioned OCR having the duplication function, especially the characters that should be duplicated. In either case, a control mark written in a specific column area for duplication designation is misread or rejected, numerous corrections to column areas such as each line are required. .

This correction work involves moving the cursor one by one to the character field to be corrected on the CRT screen using the cursor movement keys on the keyboard, and inputting the correct character each time from the keyboard, which requires many corrections. It takes a long time to do this, and if there is a mistouch of a key during correction, it must be corrected each time, requiring skill in keyboard operation, and the correction work takes a long time. It becomes.

By providing a duplication function to the above-mentioned correction operation, the present invention can efficiently and easily correct a large number of correction parts in the read result, especially for OCR that has a duplication function for reading. The present invention aims to provide an optical character reading device as described above.

This invention will be explained below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an optical character reading device according to an embodiment of the present invention, and a portion 10 surrounded by a broken line is a component forming the main part of the present invention.

In FIG. 1, numeral 1 is a memory for storing read data for one screen of a CRT, 2 is a CRT display device for displaying the data in the memory 1, and 3 is an external reading section of OCR. The device circuit disclosed in Japanese Patent No. 53-29035 is included, and therefore this external reading section 3
The output data includes not only normal read character data but also duplication data such as the control symbols.

4 is a cursor line at the bottom of the corresponding data on the CRT screen in order to access the address of one character of data in memory 1 and move the above address sequentially each time the operation is performed, and to display the address data being accessed on the CRT. 5 is a character key device that outputs characters as correction data; 6 is a character key device that selects the output of either the external reading section 3 or the character key device 5 for inputting the memory 1; This is a switching section that provides a

The configuration up to this point is the same as the conventional device, and the data read from the external reading section 3 is stored in the memory 1, since the switching section 6 is normally switched to the a side. is loaded into the CRT of CRT display device 2.
are displayed faithfully on the screen.

As mentioned above, the written data includes normal character data and duplication data, so if there is erroneous reading or jet data, it will be written to memory 1 as is.
is written on the CRT screen and displayed as is on the CRT screen, and especially in the case of duplication data being misread or jetted, the data in the next column or line is often continued as misreading data, resulting in a large number of misreadings or jets. is likely to appear on the CRT screen.

To correct this, conventionally, first switch the switching section 6 to the b side, operate the cursor movement key device 4, and then
Position the cursor line that appears on the screen below the character you want to correct.

As a result, the address of the area corresponding to the row and column of the above character in the memory 1 is accessed, and after that, by pressing the key of the corresponding correct character on the character key device 5, the correct character is pressed. The data of the character is written replacing the data content of the address of the above memo January, and as a result, the character on the cursor line on the CRT screen is replaced with the correct character, and this operation causes the cursor line to change to the next character of the relevant character. , the correct character for the next column is searched again from the group of keys on the key device 5, and the key is pressed. By repeating this operation, the duplication data that forms consecutive correction points is changed. I was making corrections.

Naturally, this correction work takes a lot of time, and since the character arrangement of the key group of the character key device 5 is a special arrangement like that of a Roman typewriter, the character arrangement must be done by a person who has undergone specific 111 training. In OCR, which takes time to select and ideally can be operated by an unspecified number of operators, it has long been desired to improve the ease of handling of this character key device.

In the present invention, in order to effectively compensate for the complexity of selecting characters in a group of keys of the character key device 5, and to improve the efficiency of duplication data correction work that requires correction of multiple locations, the above-mentioned device is used. In addition to the configuration, the duplication control device 10 for correction includes a duplication key device 7, a duplication control section 8, and a repeat key device 9.

The duplication device 7 activates the duplication control section 8 by pressing the key, and the duplication control section 8 moves the address part of the specific area in the memory 1 corresponding to the setting field by the cursor movement key 4 to the immediately preceding address part. Performs a rewriting operation using character data in the same column of a row.

The duplication control unit 8 has a function to automatically move the cursor to the next column after this rewriting is completed, and therefore, after the data in the same column of the previous line is written in the correction column, the cursor automatically moves to the next column. It is something that moves.

With the repeat key device 9, by pressing the key of the duplicate key device 7 once while holding down that key, the cursor automatically moves to the next column without pressing the key of the duplicate key device 1 for each column one after another. each.

This allows rewriting using data in the same column in each previous line (columns in the previous line corresponding to each of the above columns).

In other words, when modifying one screen's worth of data, if it includes a duplicate part, if even the data in the first line of the duplicate part is displayed correctly, or if the data is corrected using the character key device 5 mentioned above. As long as the duplication data is correctly corrected in the operation, the duplication key device 7 or its repeat key can be corrected by the data in the memory 1 of the first line.

This can be done easily and efficiently while looking at the CRT screen without having to select a group of characters by operating the device 9.

An example of the case where the above series of correction operations is performed by visually confirming the duplication of characters on the display screen will be described below with reference to FIGS. 2a2, b, and c.

FIG. 2a shows a partial CRT display screen of a sheet read by the external reading section 3 of the OCR, and the first line ABC
Assuming that characters B to G of DEFGHIJK are duplicate data, the dupe data in the second line is rejected, and all dupe data up to the fifth line below are displayed with a reject symbol (↑). It shows the situation.

The character A-, which has been correctly read and displayed, is displayed on the display screen 11.
Then, a jet mark 12 that should be displayed as the BG duplication data is shown, and a correction operation is performed on this reject mark 12.

In order to correctly correct and display this rejected data, first display the cursor line 13 by operating the cursor movement key 4, and move it to the duplex head column of the second line (
Move to the column on the second line that is the same as the character B on the first line).

This state is shown in FIG. 2a.

In this state, when the tube key device 7 is operated to activate the duplication control section 8), the character B in the corresponding column of the previous line (first line) is duplicated in the corresponding column of the second line, and the data in the memory is duplicated. The corresponding address part is rewritten from (↑) to data B, and the display on the CRT screen is also corrected to Bl+ as shown in Figure 2.

At the same time, the cursor line 13 moves to the next column (first
Move to the column on the second line corresponding to the letter C on the line), and operate the duplicate key device l again to change the column to (↑)
to C.

By operating the duplication key device 7 one after another in this manner, the duplication of the second row, E, F, and G is corrected.

The third line is corrected in the same way by positioning the cursor line at the duplication head column of the third line, and the fourth and fifth lines are similarly corrected.

FIG. 2C shows a situation where the correction has been completed up to the fifth line D and the cursor line 13 is positioned in the E column.

In the above, when the number of duplication fields in each line is large, correction can be made more efficiently by operating the reheat key device 9 to perform one operation from the beginning to the end of the duplication field, and doing this for each row.

Incidentally, in the embodiment described above, an example was shown in which the correction duplication operation by moving the cursor is performed horizontally along the row direction.
Naturally, it is easily possible to transform this process vertically along the ridge direction, and the duplex control unit 8
By appropriately changing the internal structure of the present invention, it is possible to proceed with the correction operation in either direction.

As described above, according to the present invention, as long as the data of the reference line is read correctly or corrected by the character key device 5 and stored and displayed correctly, many correction points in the duplicate portion can be corrected. Even if there is a character key device 5, corrections can be made efficiently by operating only two or three fixed keys without operating a group of character keys on the character key device 5, and a high degree of skill is not required for the correction work. In particular, it has a function useful as an OCR for handwritten characters in preparing the read data.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an optical character reading device according to an embodiment of the present invention, and FIGS. 2a and 2b. C is an explanatory diagram showing a display screen of a CRT display device for explaining a correction operation. 1: Memory, 2: CRT display device, 3: External reading section, 4.: Cursor movement key, 5: Character key device, 16I: Switching section, 1j: Duplicate key device, 8: Duplicate control section, 9 Bow repeat key device , 10: Correction duplex control device.

Claims (1)

[Claims] 1. The optically read and recognized read data is stored in a memory for one screen of a CRT display device, and the contents of the memory are displayed by the CRT display device for each screen consisting of rows and columns. At the same time, a cursor line that sequentially indicates each shelf position is movably displayed for each column on the display screen of the CRT display, and an address portion in the memory corresponding to the column indicated by the cursor line is accessed. and means for rewriting the stored contents of the accessed address portion into character data corresponding to the character key by operating a specific character key selected from a group of character keys. , rewrites the memory contents of the accessed address part to the memory data of the address part corresponding to the same column in the line immediately before the specified column, and moves the cursor line to the next column after the rewriting is completed. An optical character reading device comprising a duplication control section and a duplication key device for operating the duplication control section. 2. The optical character reading device according to claim 1, further comprising a repeat key device that maintains and continues the operating state of the duplicate key device during operation.