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Evaluating method for searching character segmenting position between two adjacent characters

An evaluation method and character technology, applied in the field of character recognition, can solve the problem that the segmentation point evaluation method cannot make full use of the character relationship information of character recognition and so on.

Inactive Publication Date: 2011-11-23
BEIJING WENTONG IMAGE RECOGNITION TECH RES CENT
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In order to solve the problem that the existing segmentation point evaluation method cannot make full use of the character recognition and the relationship information between characters, the present invention proposes a new method

Method used

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  • Evaluating method for searching character segmenting position between two adjacent characters
  • Evaluating method for searching character segmenting position between two adjacent characters
  • Evaluating method for searching character segmenting position between two adjacent characters

Examples

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Embodiment Construction

[0032] Taking a string of printed characters as an example, a complete character segmentation and recognition method implemented by the present invention is described.

[0033] 1) Obtain candidate cross-segmentation points

[0034] Determine the position of the candidate segmentation point according to the vertical projection value of the input row image. Candidate segmentation points are divided into two categories: the first category is the point whose vertical projection value is zero; the second category is the local minimum value point of the vertical projection value.

[0035] Such as figure 1 image, get candidate segmentation points 0-9.

[0036] 2) Evaluation formula for segmentation results

[0037] Size consistency evaluation: under the condition of known CL and CR, the occurrence probability P of the width ratio of left and right characters CL，CR (W L / W R ), the probability of appearance P of the height ratio of left and right characters CL，CR (H L / H R ) ...

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Abstract

The invention discloses an evaluating method for searching a character segmenting position between two adjacent characters, and belongs to the field of character recognition. The evaluating method for searching the character segmenting position is used for solving the problem of determining the accurate segmenting position between two characters in the process of recognizing a whole string of characters, and can be commonly used in the field of recognition of print characters, offline written characters and online written characters. The evaluating method for searching the character segmenting position is mainly technically characterized in that when a certain segmenting position is evaluated, the positions of all characters possibly segmented at two sides of the segmenting position are found through exhaustion, the segmenting position is evaluated according to the relationship among the size, the position and the space of the two combined characters and the recognition result of the characters, and the combination with the optimal evaluation result is selected as the evaluation of the segmenting position.

Description

technical field [0001] The invention belongs to the field of character recognition. There are two types of character recognition: on-line and off-line. On-line character recognition is to recognize the track points of the collected writing pen; off-line character recognition is to recognize character images by means of a scanner or a camera. The present invention is applicable to both on-line and off-line character recognition. When recognizing a string of offline character images or online handwriting sequences, it is necessary to segment each character in the string of text. The invention relates to a method for judging whether each separable position should be separated. Based on the invention, a character segmentation and recognition system can be realized, which is very different from existing character segmentation and recognition systems. Background technique [0002] At present, systems that recognize the entire string of characters generally need to use character ...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/20
Inventor 刘长松王琳婉陈彦丁晓青彭良瑞
Owner BEIJING WENTONG IMAGE RECOGNITION TECH RES CENT
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