JPH0258663B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention provides a character string that is particularly capable of dealing with errors in cutting out character patterns, in a device that reads character strings such as kanji characters written on forms, etc. It concerns a reading device.

[Prior art]

Conventionally, in this type of character reading device, a character string pattern obtained by optically scanning a character string such as kanji written on a form etc.
When cutting out a character pattern for characters, there is no effective way to deal with this cutting error. Therefore, for example, if the number of characters is known in advance, this number of characters is compared with the number of read characters, and the number of characters is compared to determine the excess or deficiency. If necessary, the reading results were displayed on a display or other display device, and a person made corrections. For this reason, the conventional method has the disadvantage that errors in character pattern extraction cannot be corrected without human intervention.

[Summary of the invention]

This invention was made for the purpose of eliminating the above-mentioned drawbacks of the conventional ones. It places restrictions on the character strings such as kanji written on forms, etc., and characters outside of these restrictions are caused by errors in cutting out the character pattern. , the character immediately before or after that character is integrated and output as a single character, thereby automatically correcting the error in cutting out the character pattern and outputting the correct character string of kanji. The present invention provides a character reading device capable of reading text.

[Embodiments of the invention]

Examples of the present invention will be described below. FIG. 1 is a block diagram showing the internal components of a character reading device which is an embodiment of the present invention. In the figure, 1 is a character string pattern storage device, 2 is a character pattern extraction device, 3 is a character name determination device, 4 is a matching pattern storage device, 5 is an output inspection device, 6 is a restriction information storage device, and 7 is a character integration process. The device 8 is a character integration condition storage device.

FIG. 2 is an explanatory diagram showing the processing results at each stage of the character reading device of FIG. 1. In the figure,
9 is a character string pattern written on a form, etc., 1
0, 11, 12 are character patterns cut out from character string pattern 9, 13, 14, 15
denote character names determined by the character name determination device 5 shown in FIG. 1, corresponding to the character patterns 10, 11, and 12, respectively, and 16 and 17 denote the characters of the reading results finally output.

Next, the operation of the character reading device configured as shown in FIG. 1 will be explained. First, a scanning device (not shown) scans a "lower" character string pattern 9 written on a form, for example, shown in FIG. 2, and stores this character string pattern 9 in the character string pattern storage device 1. . Next, the character string pattern 9 stored in the character string pattern storage device 1 is cut out using the character pattern cutting device 2, and the cut out character patterns 10, 11, 12 is detected. After cutting out each character pattern 10, 11, 12,
In the character name determining device 3, each of the character patterns 10, 11, 12 is matched with the matching pattern stored in the matching pattern storage device 4,
Character names 13, 14, 15 for "Down", "I", and "Tate"
Determine. Each determined character name 13, 14, 1
5, the character name 13 for "shita" and the character name 15 for "stand" are kanji, and the character name 14 for "i" is katakana. Restriction information that there is no katakana with kanji on both sides in the character string is stored in the restriction information storage device 6, and therefore, the character name 14 is detected by the output inspection device 5 based on the restriction information. . Therefore, in the character integration processing device 7, by checking the contents of the character integration condition storage device 8 that stores the integration conditions for integrating two characters into one character, the character name 14 of "i" and " The character name 15 for ``tate'' is integrated with the character name 15 for ``place'' and converted into the correct character 17 for ``place''.

As described above, in the character reading device of the present invention, restrictions are placed on character strings such as kanji written on forms, etc., and the restrictions are inspected. Based on the integration conditions that show the relationship between characters and the original kanji, we check whether the kanji is read as two characters by separating the bias or structure of the kanji due to an error in cutting out the character pattern. , it is possible to integrate the characters immediately before or after that character and output the correct kanji. Therefore, it becomes possible to automatically detect and correct errors in cutting out character patterns.

In addition, in the above embodiment, the case where katakana and kanji are mixed as the restriction information was explained, but the present invention is not limited to this, and the present invention is not limited to this. This embodiment has the same effect as the above embodiment.

〔Effect of the invention〕

As explained above, this invention places restrictions on character strings such as kanji written on forms, etc., and when cutting out a character pattern for one character from a character string pattern, if an error occurs in cutting out the character pattern. , is configured to be able to detect and correct errors in cutting out character patterns using restriction information, so that errors in cutting out character patterns can be corrected automatically and reliably. This has the excellent effect of providing a reading device.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing internal components of a character reading device according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing processing results at each stage of the character reading device of FIG. In the figure, 1...Character string pattern storage device, 2
...Character pattern cutting device, 3...Character name determining device, 4...Consistent pattern storage device, 5...Output inspection device, 6...Restriction information storage device, 7...Character integration processing device, 8...Character integration condition storage device, 9... Character string pattern, 10, 11, 12...Character pattern, 13,
14, 15... Character names, 16, 17... Characters resulting from reading.

Claims (1)

[Claims] 1. In a character reading device that recognizes and reads a character string written on a form, a character string pattern storage means that scans a character string and stores a character string pattern obtained thereby, and the stored character string. character pattern cutting means for cutting out a character pattern for one character from the pattern; character name determining means for determining the character name of each character pattern cut out; and restriction information storage means for storing information that limits the arrangement of the character strings. , inspection means for inspecting the output character string output from the character name determination means using the restriction information storage means, and character integration for integrating two characters and converting them into one character based on an integration condition. It consists of a processing means and a character integration condition storage means for storing this integration condition, and when the inspection means detects a character outside the limits in the output character string output from the character name determination means,
A character reading device characterized in that the character is integrated with a character immediately before or after the character using the character integration processing means, and a new character string is output.