JPH0713990A - Character recognizing device - Google Patents

Abstract

PURPOSE:To provide a character recognizing device which is capable of simplifying a correction work by displaying the corrected character that an operator inputted lastly as the first recognition candidate character if the result of a pattern recognition is the same as the result in the previous time. CONSTITUTION:A character pattern recognition control part 4 collates the character pattern read by a reading control part 2 with the storage contents of a pattern recognition dictionary 3, performs a character pattern recognition and selects the first candidate character. A corrected character learning control part 9 again edits the correction result of the character and the control result of the change of a display order which are received from a recognition result character output/correction control part 5 and the corrected character information stored in a corrected character learning dictionary 8 and stores the edited one as the corrected character information corresponding to the first candidate character of a character pattern in the corrected character learning dictionary 8. Subsequently, when the first candidate character having the corrected character information in the corrected character learning dictionary 8 is selected, the latest selection result can be always displayed at first by displaying the contents of the corrected character learning dictionary 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a character recognition device, and more particularly, to a character recognition device having a function of reading a character pattern and correcting a recognition result.

[0002]

2. Description of the Related Art A conventional character recognition device is described in, for example, Japanese Patent Laid-Open No. 61-74081. In the character recognition device described in this publication, as a result of pattern recognition, even if the first-ranked recognition candidate character stored in the feature dictionary is
If the target character does not exist in the recognition candidate characters below the rank, a character category table that stores the correction character input by the operator from the keyboard or the like in association with the recognition candidate character in the first rank is provided. If the recognition result indicates the above-mentioned first-ranked recognition candidate character, this first
When the operator requests the display of the second-ranked recognition candidate character after displaying the first-ranked recognition candidate character because this is a misread, the correction character entered in the character category table in association with the first-ranked recognition candidate character is displayed. Is displayed prior to the second and lower recognition candidate characters, the correction work is simplified, and the recognition speed and accuracy are improved.

[0003]

In the conventional character recognition apparatus described above, when the same character is read, the pattern recognition result is also stored in the feature dictionary as in the previous case.
The recognition candidate character of the second rank is displayed, and if there is a correction character newly input by the operator from the keyboard last time, the correction character is displayed as the second recognition candidate character. Second, as misread
There is a problem in that it is necessary to request the display of the candidate character for recognition of rank.

An object of the present invention is to simplify the correction operation by displaying the correction character last input by the operator as the first recognition candidate character if the result of the pattern recognition is the same as the previous one. To provide a character recognition device.

[0005]

A character recognition apparatus of the present invention is connected to a character pattern reading apparatus and controls a reading of a character pattern, and a reading control unit that stores the characteristics of the character pattern in advance and becomes a candidate for each characteristic. A pattern recognition dictionary that stores a plurality of characters in display order; a character pattern recognition control unit that performs character pattern recognition by collating a character pattern read by the reading control unit with the stored contents of the pattern recognition dictionary; The display control unit for displaying the recognition result of the pattern recognition control unit on the display device, the recognition result character output / correction control unit for controlling the correction of characters and the change of the display order with respect to the recognition result, and the result of the correction of the characters are displayed. A character recognition device including a corrected character learning dictionary that stores as corrected character information for a character that is a first candidate for a corresponding character pattern. In the correction character information to be stored in the correction character learning dictionary, the result of correcting the character and the control result of changing the display order and the correction character information already stored in the correction character learning dictionary are edited and output again. This is a configuration in which a character learning control unit is provided.

[0006]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention.

The character recognition device 1 of the present invention is connected to a character pattern reading device 10 and a reading control unit 2 for controlling the reading of a character pattern, and a plurality of character patterns which are stored in advance and become candidates for each character. A pattern recognition dictionary 3 in which characters are stored in accordance with the display order and a character pattern read by the reading control unit 2 in the pattern recognition dictionary 3
Character pattern recognition control unit 4 for performing character pattern recognition by collating with the stored contents of the display unit, display control unit 7 for displaying the recognition result of the character pattern recognition control unit 4 on the display device 6, character pattern recognition control unit 4, and display control. The recognition result character output / correction control unit 5 which is located between the unit 7 and controls the correction of characters and the change of the display order with respect to the recognition result, and the result of the character correction and the change of the display order to the corresponding character pattern. The correction character learning dictionary 8 for storing as the correction character information for the first candidate character, the character pattern recognition control unit 4, the recognition result character output / correction control unit 5, and the correction character learning dictionary 8 As the corrected character information to be stored in the learning dictionary 8, the result of correction of characters received from the recognition result character output / correction control unit 5 and the control result of change of display order, and the already-corrected character learning dictionary. And storing the already corrected text information edit again, and a correction character learning control unit 9 for outputting.

Next, the operation will be described.

FIG. 2 is a flow chart showing the flow of processing in one embodiment of the present invention. For the description, the names and reference numerals of the respective parts shown in FIG. 1 are used.

First, the reading control unit 2 controls the character pattern reading device 10 to read an image of a character and transfers it to the character pattern recognition control unit 4. When the character pattern recognition control unit 4 recognizes the character pattern in step (hereinafter referred to as S) 1, the stored content of the pattern recognition dictionary 3 is collated with the recognized character pattern in S2, and the first candidate character is selected, The character group of the second display order and below is read out and held. Then, in S3, through the correction character learning control unit 9,
The correction character learning dictionary 8 is searched for the correction character corresponding to the first candidate character just selected. Next, in S4, the result of this search is discriminated, and if there is a corrected character, the ranks of all candidate characters below the first display rank held in the character pattern recognition control unit 4 in S5 are corrected character learning dictionary. The corrected character stored in 8 is replaced with the corrected display order.
If there is no correction character in S4, or if the process of S5 ends, S
6, the candidate character of the first display order held in the character pattern recognition control unit 4 is converted into the recognition result character output / correction control unit 5
And display on the display device 6 via the display control unit 7.

Next, in S7, the operator looks at the candidate character of the first display order displayed on the display device 6 to judge whether it is appropriate or not.
Then, the recognition result character output / correction control unit 5 reads out a character group having a second display order or lower from the character pattern recognition control unit 4 and operates the display device 6 via the display control unit 7 by operating the input means such as a keyboard. indicate. Next, the operator looks at the character group below the second display rank in S9, determines whether there is an appropriate character, and if there is an appropriate character, selects it in S10 and displays it. If there is no appropriate character, a new character is input from the input means such as a keyboard in S11 and the displayed character is corrected to an appropriate character. When the operation is completed in either S10 or S11 and the correction content is determined, the recognition result character output / correction control unit 5 notifies the correction character learning control unit 9 in S12, and the correction character learning control unit 9 recognizes the character pattern. The first candidate character and all the character groups below the first display order are read from the control unit 4, and the last selected character is set as the first display order, and the other characters are moved down one by one to set a new display order. , And stored in the corrected character learning dictionary 8 in association with the first candidate character.

[0013]

As described above, according to the present invention, the corrected character information stored in the corrected character learning dictionary is stored in the corrected character learning dictionary as the corrected character information and the control result of changing the display order. By providing a corrected character learning control unit that edits and outputs the corrected character information again, when the result of pattern recognition is the same as the previous time, the corrected character last input by the operator is used as the first candidate candidate character. There is an effect that it can be displayed and the correction work can be simplified.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a flowchart showing a processing flow of an embodiment of the present invention.

[Explanation of symbols]

 1 character recognition device 2 reading control unit 3 pattern recognition dictionary 4 character pattern recognition control unit 5 recognition result character output / correction control unit 6 display device 7 display control unit 8 corrected character learning dictionary 9 corrected character learning control unit 10 character pattern reading device

Claims (2)

[Claims] 1. A reading control unit which is connected to a character pattern reading device and controls reading of a character pattern, and a pattern in which characteristics of the character pattern are stored in advance and a plurality of candidates for each characteristic are stored according to a display order. A recognition dictionary, a character pattern recognition control unit for performing character pattern recognition by collating the character patterns read by the reading control unit with the stored contents of the pattern recognition dictionary, and a recognition result of the character pattern recognition control unit displayed on a display device. A display control unit, a recognition result character output / correction control unit for controlling character correction and display order change for the recognition result, and a result of the character correction for the first candidate character of the corresponding character pattern. In a character recognition device having a corrected character learning dictionary stored as corrected character information, the corrected character learning dictionary stores the corrected character learning dictionary. As a corrected character information, a correction character learning control unit is provided for re-editing and outputting the correction result of the character and the control result of changing the display order and the corrected character information already stored in the corrected character learning dictionary. Character recognition device. 2. The first recognition result in which the display order of the corrected character information edited and output by the corrected character learning control section is always the latest is displayed.
2. The character recognition device according to claim 1, wherein the character recognition device is arranged in order of time, and the character recognition devices are sequentially arranged in time order with respect to the latest recognition result.