JPH04188291A - Character recognizing device - Google Patents

Abstract

PURPOSE:To eliminate wrong recognition caused by the difference of a character type by inspecting whether the feature of an inputted character has feature information for each character type stored in a recognition dictionary or not. CONSTITUTION:A character input means 5 calculates the feature information of the character for each character from picture information read by a scanner 13 and outputs it to a character type discriminating means 6 and a character type converting means. The character type discriminating means 6 discriminates it from the feature information of the character whether the inputted character is a Ming typeface of a Gothic typeface, and outputs the result to a dictionary selecting means 8. Further, a character recognizing means 9 compares the feature information of the character with information stored in the recognition dictionary and outputs the character showing the most coincident information on a display 15 as the recognizing character corresponding to the inputted character. Thus, there is no wrong recognition caused by the difference of the character type between the feature information of the inputted character and the information stored in the recognition dictionary.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a character recognition device that recognizes input characters after determining their typeface.

[Prior Art] In order to support multiple typefaces, conventional character recognition devices store character information in a recognition dictionary in one typeface that is considered to be a general-purpose typeface or in one typeface that is composed of multiple typefaces. It consists of a recognition dictionary, a recognition dictionary for each of a plurality of fonts, or a means for the user to specify a recognition dictionary from among a plurality of dictionaries in accordance with the font of the input document.

[Problems and objects to be solved by the invention] However, conventional character recognition devices have a high rate of misrecognition of characters in fonts that do not constitute the recognition dictionary, or as a result of configuring the dictionary with multiple fonts, the recognition dictionary is The problem is that the search operation is slow due to the large scale, or that even if a recognition dictionary is created for each typeface, it is difficult to specify a recognition dictionary that corresponds to the typeface of the document because the user has no knowledge about the typeface.

Therefore, in order to solve this problem, the present invention automatically determines the font of the input character, thereby addressing the difference in font between the information on the characteristics of the input character and the information stored in the recognition dictionary. To provide a character recognition device that eliminates misrecognition caused by such recognition.

[Means for Solving the Problems 1 (1) The character recognition device according to claim 1 extracts feature information from input characters as shown in FIG. A character input means 5 for outputting, a font discrimination means 6 for determining the font of the character from information on character characteristics, a dictionary selection means 8 for passing a recognition dictionary corresponding to the font to the character recognition means 9, and character characteristics. It is characterized by comprising a character recognition means 9 which recognizes the character by comparing the information of the character with a recognition dictionary, and a display device 14 which outputs the result of character recognition.

(2) As shown in FIG. 2, the character recognition device according to claim 2 comprises a character input means 5 for extracting feature information from input characters and outputting the information to the font discrimination means 6 and the font conversion means 7; a typeface discrimination means 6 for determining the typeface of the character from information on the characteristics of the character; a typeface conversion means 7 for converting information on the characteristics of the character based on the typeface into information corresponding to the typeface constituting a recognition dictionary; It is characterized by comprising a character recognition means 9 that recognizes the character by comparing feature information with a recognition dictionary, and a display device 14 that outputs the result of character recognition.

[Operation] (1) The operation of the character recognition device according to claim 1 is to determine whether each typeface stored in the recognition dictionary has characteristic information regarding the characteristics of the input character. A typeface is determined, and a recognition dictionary composed of the typeface is selected from a plurality of recognition dictionaries.

(2) The operation of the character recognition device according to claim 2 is to determine the font of the input character by checking whether each font has characteristic information regarding the information on the characteristics of the input character. Based on this, information on the characteristics of the character is converted into information corresponding to the typefaces that make up the recognition dictionary.

[Embodiment 1 FIG. 3 is a block diagram in an embodiment of the present invention,
The microcomputer 1 consists of an arithmetic unit 2, a reading/writing memory 3, a reading memory 4, etc., and performs operation control and character recognition according to the operating procedures written in the reading memory 4. The reading memory 4 is used to hold generated data, and the reading memory 4 has a character input means 5 in a program area 16, a font discrimination means 6, a font conversion means 7, a dictionary selection means 8, a character recognition means 9, and a recognition dictionary area 17. A recognition dictionary 10 and a recognition dictionary 11 are stored in
The recognition dictionary 10 stores information on characteristics of characters in the thin Mincho typeface,
The recognition dictionary 11 stores information on the characteristics of characters in thin Gothic fonts, the keyboard 12 outputs the start of operation to the microcomputer 1 according to input from the outside, and the scanner 13 scans documents according to instructions from the microcomputer 1. The image information read by the microcomputer 1 is outputted to the microcomputer 1, and the display 15 displays the result of character recognition by the microcomputer 1.

FIG. 4 is a flowchart in an embodiment of the present invention, and when a key on the keyboard 12 is pressed down, character recognition begins according to the operating procedure written in the reading memory 4. The character input means 5 obtains character characteristic information for each character from the image information read by the scanner 13 and outputs it to the font discrimination means 6 and the font conversion means 7. , determines whether the input character is Mincho or Gothic and outputs it to the dictionary selection means 8, determines whether the input character is thick or thin, slanted or not, and selects the font. The font converting means 7 converts the information on the character characteristics from the information from the font discriminating means 6 into information indicating the characteristic that the input characters are thin and not slanted, and outputs it to the character recognition means 9. ■
, the dictionary selection means 8 outputs the recognition dictionary 10 or the recognition dictionary 11 to the character recognition means 9 as a recognition dictionary for the input character based on the information from the typeface discrimination means 6; The information stored in the recognition dictionary is compared, and the character indicating the most matching information is displayed on the display 15 as the recognition character corresponding to the input character.

[Effect of the invention 1 As described above, according to the present invention, by determining the font of input characters, a recognition dictionary corresponding to the font can be selected from recognition dictionaries configured for each font, or By converting the information on the characteristics of the input character into information corresponding to the typeface that constitutes the recognition dictionary, the information on the characteristics of the input character and the information stored in the recognition dictionary are This has the effect of eliminating misrecognition caused by differences in fonts.

[Brief explanation of the drawing]

FIG. 1 is a claim correspondence diagram showing the configuration of a character recognition device according to claim 1 of the present invention. FIG. 2 is a claim correspondence diagram showing the configuration of a character recognition device according to claim 2 of the present invention. FIG. 3 is a block diagram showing an embodiment of the character recognition device of the present invention. FIG. 4 is a flowchart showing the operation of the embodiment of the character recognition device of the present invention. l...Microcomputer 2...Arithmetic device 3...Reading/writing memory 4...Reading memory 5...Character input means 6...Typeface discrimination means 7...Typeface conversion means 8. ... Dictionary selection means 9 ... Character recognition means 10 ... Recognition dictionary for thin Mincho typeface 11 ... Recognition dictionary for thin Gothic typeface 12 ... Keyboard 13 ... Scanner 14 ... Display device 15 ...Display 16...Program area 17...Recognition dictionary area Fig. 4

Claims (2)

[Claims] (1) A character recognition device consisting of a recognition dictionary that stores information on character characteristics in advance and means for comparing the information on the characteristics of the input character with the recognition dictionary to recognize the character, A character recognition device comprising: means for determining a typeface from information on character characteristics; and means for selecting a recognition dictionary corresponding to the typeface from recognition dictionaries configured for each typeface. (2) Characteristics of an input character in a character recognition device consisting of a recognition dictionary that stores information on character characteristics in advance, and means for comparing the information on the characteristics of the input character with the recognition dictionary to recognize the character. 1. A character recognition device comprising means for determining a typeface from information on the character, and means for converting information on the characteristics of the character into information corresponding to the characteristics of the typeface of the character stored in a recognition dictionary.