Stroke confirmation method of handwritten Chinese characters based on feature matrix for similarity matching

A similarity matching and feature matrix technology, applied in character and pattern recognition, instruments, computer parts, etc., can solve problems such as inability to judge more or less writing, inability to judge the correctness of each stroke, one-to-one correspondence, etc.

Active Publication Date: 2017-09-26
南京文木教育科技有限公司
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Problems solved by technology

[0007] Although the above methods can evaluate the writing quality of handwritten Chinese characters in some aspects, these methods have not realized the one-to-one correspondence between strokes, so it is impossible to judge which strokes are overwritten or missing, and it is impossible to check the correctness of each stroke. Judging the correctness of the stroke order, the rationality of the structure and the evaluation of the overall writing quality cannot be realized

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  • Stroke confirmation method of handwritten Chinese characters based on feature matrix for similarity matching
  • Stroke confirmation method of handwritten Chinese characters based on feature matrix for similarity matching
  • Stroke confirmation method of handwritten Chinese characters based on feature matrix for similarity matching

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Embodiment Construction

[0041] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0042] Such as figure 1 , a handwritten Chinese character stroke confirmation method based on feature matrix for similarity matching, comprising the following steps:

[0043] 1. Establish a feature set of stroke orientation, topological relationship and shape of standard Chinese characters;

[0044] (1) Traverse the standard Chinese character point set to obtain the minimum and maximum values ​​of the X coordinates in the point set x min 、x max , Y coordinate minimum and maximum y min 、y max , with (x min ,y min ), (x min ,y max ), (x max ,y min ), (x max ,y max ) four points to build a horizontal rectangle for the vertices. Such as figure 2 As shown, construct the intersection point p of the diagonals of the horizontal rectangle 0 as the center of the circle, with p 0 A is a circle of radius, where A is the center to p of the points that make up the...

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Abstract

The invention discloses a handwritten Chinese character stroke confirmation method based on feature matrix for similarity matching. The specific steps are: (1) establishing a stroke feature set based on writing orientation, topological relationship and shape for a given Chinese character as a judgment standard; (2) Use the digital handwriting platform to record the user's Chinese character writing trajectory, analyze and process the user's Chinese character features, and establish a user's Chinese character stroke feature matching space that is unified with the standard Chinese character stroke features; (3) Judgment based on the standard stroke feature set The total similarity between a stroke of a user's Chinese character and a stroke of a standard Chinese character; (4) If the total similarity is greater than a certain threshold, the stroke is matched; otherwise, the matching is considered to be a failure, and the stroke is written incorrectly. The method of the invention can realize the one-to-one correspondence judgment between the strokes of the handwritten Chinese characters of the user and the strokes of the standard Chinese characters, thereby realizing the judgment of whether the strokes of the Chinese characters handwritten by the user are correct or not, and has important application value.

Description

technical field [0001] The invention relates to the technical field of evaluating Chinese character writing by using a computer, in particular to a handwritten Chinese character stroke confirmation method for similarity matching based on a feature matrix. Background technique [0002] Chinese characters are a symbol system for recording Chinese language and characters, and a tool for all Chinese speakers to communicate their thoughts and feelings. It has unique charm and beauty, and is one of the oldest characters in the world. Chinese characters embody the wisdom and wisdom of the Chinese nation, carry the history of culture and civilization of the Chinese nation, contain the beautiful pursuit and integrity of the Chinese nation, and are the most precious cultural heritage of the Chinese nation. With the popularization of computers, the way people record Chinese characters has undergone revolutionary changes. The traditional pen and paper writing has been gradually replaced...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/62
Inventor 黄峰姜杰赵胜伟邓红静白晓东李艺仇宏斌
Owner 南京文木教育科技有限公司
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