Character identification technique based on Gabor filter set
Title：
Character identification technique based on Gabor filter set
Application Number：
 02117865
Application Date：
 2002/05/24
Announcement Date：
 2003/12/03
Pub. Date：
Publication Number：
 1459761
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 G06K 9/46, G06T 7/40
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Ding Xiaoqing, Wang Xuewen, Liu Changsong
Key Words：
 Character identification technique, Gabor filter set
Abstract：
 A character recognizing technology based on Gabor filter group includes using Gabor filter group to extract the strokes of a character image in different directions, finding out optimal filter parameters, non-linear post-processing to the output of Gabor filter group for increasing the resistance of recognizing system to brightness, contrast change and interference of image, calculating the recognizing characteristics of the positive and negative values in said output, combining them, together to obtain a multi-dimension characteristic vector, and reducing its number of dimensions by linear analysis method to improve its recognizing performance. Its advantage is high recognition percentage.
Claim：
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PCT：
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