Method and device for automatically evaluating right and wrong of Chinese character writing on basis of digital handwriting equipment

Abstract

An embodiment of the invention provides a method and a device for automatically evaluating right and wrong of Chinese character writing on the basis of digital handwriting equipment. The method comprises establishing template characters which includes writing information and structural information, wherein the wring information is of a two-level index structure comprising strokes and stoke segments, and the structural information is relation of relative positions between stroke segments; collecting handwritten characters; calculating writing information and structural information of the handwritten characters; according to the writing information and structural information of the handwritten characters and the writing information and the structural information of the template characters, matching the handwritten characters and the template characters to generate matching results including a mapping relation set of the handwritten characters and the stroke segments of the template characters; and recognizing error information of the handwritten characters according to the matching results. The method can accurately and maximally match the handwritten characters of learners and the template characters and accurately recognize various error types including excessive strokes, missed strokes, cursive, broken strokes, stroke directions, stroke sequences and the like.

Description

technical field [0001] The invention belongs to the technical field of information processing of Chinese character writing, and in particular relates to a method and device for automatically evaluating the correctness and error of Chinese character writing based on digital handwriting equipment. Background technique [0002] The application goal of the correctness and error evaluation of Chinese character writing is to assist Chinese learners to learn Chinese character writing independently without being on duty. Therefore, the idea is to collect information such as the position and time of learners writing Chinese characters in real time and perform feature extraction, and then automatically compare the Chinese characters written by learners with standard Chinese characters at the level of strokes, parts, and whole characters, and Carry out automatic identification and feedback of Chinese character writing errors. [0003] There is an essential difference between Chinese c...

AI Technical Summary

Problems solved by technology

[0011] The above methods are all applied to the teaching system of Chinese character writing mainly based on transcription, so they cannot effectively check the user's ability to memorize and recognize characters; they require that the complexity of the Chinese characters themselves should not be too high, that is to say, they can only be applied to simple Chinese characters In addition, the above method requires that the user's writing results cannot be too different from the template Chinese characters

If the user is allowed to write Chinese characters silently, the user may make various writing errors, which makes the existing system incompetent

In addition, learners in western countries simply understand Chinese characters as graphics and draw them randomly, so various unexpected mistakes will occur in the process of writing

For the Chinese characters they write, the current system is also difficult to deal with

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