Off-line Chinese character stroke extraction method based on template matching

Abstract

The invention discloses an off-line Chinese character stroke extraction method based on template matching. The off-line Chinese character stroke extraction method comprises the following steps: stroke codes are established for all strokes of Chinese characters and serve as templates; a code is established for a given Chinese character according to the types and numbers of the strokes and serve as a template; the framework line of the given off-line Chinese character is extracted; the framework line is dismantled into four types of stroke segments according to the directions of four strokes namely transverse, vertical, left-falling and right-falling; the stroke segments, which can possibly form new strokes through end-to-end connection, are connected to form new quasi-strokes, and the new quasi-strokes are identified according to the directions and the stroke segment composition features; the quasi-strokes, the stroke code template of the given Chinese character and the Chinese character code templates are matched to confirm all strokes of the off-line Chinese character. With adoption of the method capable of extracting the strokes of the off-line Chinese character through the framework, confirmation of each stroke of the off-line Chinese character can be facilitated, and support can be provided for giving dynamic writing attributes to the strokes of the off-line Chinese character and even the whole off-line Chinese character and for researching and developing the generation technology of a new Chinese character font library.

Description

technical field [0001] The invention belongs to the field of pattern recognition, in particular to an off-line Chinese character stroke extraction method based on template matching. Background technique [0002] The so-called off-line Chinese characters refer to Chinese characters that already exist on paper or other static media, generally including Chinese characters on printed matter, traditional copybooks, and Chinese characters usually written by users on paper and other media. Chinese character stroke extraction is mainly used in the field of offline Chinese character recognition. Since offline Chinese characters cannot record the dynamic writing process of Chinese characters, it is difficult to distinguish the strokes of Chinese characters, making offline Chinese character recognition much more difficult than online Chinese character recognition. Some offline Chinese character recognition schemes tend to be divided into strokes Base. [0003] At present, the stroke ...

AI Technical Summary

Problems solved by technology

[0006] Most of the above methods are used for offline Chinese character recognition. Although the structure information of Chinese characters can be roughly extracted, the stroke information of Chinese characters cannot be extracted based on the stroke type of Chinese characters.

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