Method and device for evaluating character writing standard degree
A character and standard technology, applied in the field of pattern recognition, can solve problems such as inaccurate evaluation of confusing characters, and achieve the effects of reliable confidence evaluation results, improved distinction, accuracy and rationality
Active Publication Date: 2014-08-20
HEFEI IFLYTEK TOYCLOUD TECH
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Problems solved by technology
[0005] In order to solve the above-mentioned technical problems, the embodiment of the present invention provides a method and device for evaluating character writing standardization, which can effectively solve the problem of inaccurate evaluation of confusing characters in the prior art, and improve the rationality and accuracy of writing standardization evaluation
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no. 1 example
[0063] see figure 1 , a flow chart of the first embodiment of the method for character writing standardization evaluation provided by the present invention, the method includes:
[0064] S101. Extracting original feature vectors of stroke trajectories of written characters.
[0065] In the method provided by the embodiment of the present invention, the user can pre-select the Chinese character that the user wants to practice currently, and write the corresponding character in the preset writing area, so as to establish the correspondence between the character to be evaluated written by the user and the standard character . Of course, the selection step may not be included, and the writing area may be directly provided to collect stroke trajectories of characters written by the user. The system records the stroke trajectory of the collected characters as a series of two-dimensional coordinate point columns P i (x i ,y i ).
[0066] The two-dimensional coordinate point seq...
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The invention relates to the field of pattern recognitions, in particular to a method and a device for evaluating a character writing standard degree. The method includes the steps of extracting primitive characteristic vectors of stroke tracks of writing characters, matching the extracted primitive characteristic vectors with character templates in a first character set to obtain a first confidence degree, implementing a secondary matching process if the first confidence degree can not meet a requirement of a preset evaluation condition, obtaining secondary characteristic vectors, matching the secondary characteristic vectors with character templates in a second character set to obtain a second confidence degree, and performing an evaluation for the writing characters based on the second confidence degree. The provided method effectively solves the problem that the evaluation for confusing characters is inaccurate in prior art, and the reasonability and accuracy of the evaluation for the writing standard degree are improved.
Description
technical field [0001] The invention relates to the field of pattern recognition, in particular to a method and a device for evaluating standardization of character writing. Background technique [0002] With the development of information interaction, computer-assisted teaching has been widely used. For example, in terms of Chinese teaching, computer-assisted teaching provides applications such as Chinese character evolution, pinyin demonstration, and dynamic demonstration of Chinese character writing. However, it is less involved in the evaluation of users' Chinese character writing standardization. A well-written Chinese character usually requires standard strokes and stroke order, and the overall structure of the character is compact and meets the requirements of aesthetics. Due to the large number of Chinese characters, the normative evaluation of Chinese characters is more complicated, involving image processing, pattern recognition and other technologies. Therefore, ...
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IPC IPC(8): G06K9/68
Inventor 何婷婷胡郁胡国平刘庆峰
Owner HEFEI IFLYTEK TOYCLOUD TECH