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| 基于类内散度的OCR证件图像的倾斜检测算法 | |
| 引用本文： | 谢国庆,白莹,王智文.基于类内散度的OCR证件图像的倾斜检测算法[J].广西工学院学报,2009,20(2):38-41,46. |
| 作者姓名： | 谢国庆 白莹 王智文 |
| 作者单位： | 1. 福建师范大学,软件学院,福建,福州,350007 2. 福建工程学院,数理系,福建,福州,350007 3. 广西工学院,计算机工程系,广西,柳州,545006 |
| 基金项目： | 福建省科技厅重点项目，广西教育厅科研项目 |
| 摘 要： | 针对包含有OCR字符区域的OCR证件图象,提出了一种基于方向投影和类内散度的OCR证件图象的倾斜检测算法.该算法以整数Bresenham算法计算不同扫描角度的方向投影,同时计算各个方向投影的最小总类内散度,然后寻找所有最小总类内散度的最小值,以该最小值对应的扫描角度为最终的检测倾角.实验结果表明,该算法能快速准确地检测出OCR证件图象的倾斜角度. |
| 关 键 词： | OCR证件 方向投影 类内散度 倾斜检测 |
Skew Detection Algorithm for OCR ID Document Image Based on within-group Measure of Dispersion |
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| XIE Guo-qing,BAI ying,WANG Zhi-wen.Skew Detection Algorithm for OCR ID Document Image Based on within-group Measure of Dispersion[J].Journal of Guangxi University of Technology,2009,20(2):38-41,46. | |
| Authors: | XIE Guo-qing BAI ying WANG Zhi-wen |
| Affiliation: | 1.Faculty of Software;Fujian Normal University;Fuzhou 350801;China;2.Department of Mathematics and Physics;Fujian Engineering University;Fuzhou 350007;3.Department of Computer & Engineering;Guangxi University of Technology;Liuzhou 545006;China |
| Abstract: | According to the OCR ID Document image containing the OCR character region,a new skew detection method based on the directional projection and the within-group measure of dispersion has been presented.Several directional projection are calculated in the method,using Bresenham's integer line drawing algorithm.After calculating minimal within-group measure of dispersion of the directional projection and searching minimal value of all within-group measure of dispersion,the corresponding angle of minimal value ... |
| Keywords: | OCR ID document directional projection within-group measure of dispersion skew detection |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |