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Method and system for discriminating handwriting characters

A handwriting input and character input technology, which is applied in the field of character recognition system, can solve the problems of inconspicuous stroke effect, increase the influence of reference points, and slow recognition speed, so as to improve processing speed and recognition rate, reduce system recognition error, and feature data Reduced effect

Inactive Publication Date: 2007-09-05
WUDI SCI & TECH (XIAN) CO LTD
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Problems solved by technology

In addition, retaining too many feature points will increase the error. Since the comparison between the previous stroke segment and the next stroke segment requires reference points, it will increase the unnecessary reference point influence during feature comparison.
Therefore, most of the current algorithms are only effective for relatively straight stroke segments, such as Chinese characters, etc., but the effect is not obvious for strokes with excessive twists and turns, such as Thai characters and various symbolic characters.
Because too many stroke segments and feature points are retained after the filtering process, the feature value increases, and the recognition speed is slow when comparing the template, resulting in a low recognition rate

Method used

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  • Method and system for discriminating handwriting characters
  • Method and system for discriminating handwriting characters
  • Method and system for discriminating handwriting characters

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Embodiment Construction

[0025] The principle of the present invention is to use the cutting angle of the angle between two adjacent stroke segments as a filtering basis to remove redundant error characteristic data, so as to improve the recognition rate and speed.

[0026] Referring to Fig. 1, this figure is the block diagram of a kind of handwritten input character recognition system that the present invention provides, as shown in the figure, this handwritten input character recognition system 10 comprises: an input device 12, a preprocessing module 14, a recognition module 16 and a template database 18, the user obtains handwritten input characters by writing characters on the handwriting board of the input device 12, and then the input device 12 samples all the handwritten input character information on the handwriting board and sends them into the In the preprocessing module 14. The preprocessing module 14 performs preprocessing operations including error noise filtering and filtering on handwri...

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Abstract

A method for identifying character of hand-writing input carry out treatment on inputted stroke by utilizing corner cut of included angle between each adjacent stroke sections in character of hand-writing input for adjusting position and structure between stroke sections so as to pick up feature information of character inputted by hand-writing for carrying out identification.

Description

technical field [0001] The present invention relates to a character recognition system and method, in particular to a handwritten input character recognition method and system. The method and the system can optimize the input strokes of the handwritten input characters according to the tangential angle between adjacent stroke segments in the handwritten input characters processing to adjust the structure and position of stroke segments to realize handwriting input character recognition. Background technique [0002] Along with the rapid development of science and technology, various palm-type data processing devices constantly appear, as: palm-type electronic products such as mobile phone, personal digital processing (PDA) almost all have handwritten character recognition function. Usually, the text operation features are extracted by the input device, and the operation features can be any useful structural feature information in the sampled data or a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/72
Inventor 陈淮琰公学雷赵永国
Owner WUDI SCI & TECH (XIAN) CO LTD
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