[1]钟 侠.基于Hough变换的票据图像倾斜校正[J].常州大学学报(自然科学版),2012,(02):69-72.
　ZHONG Xia.Skew Detection and Correction of Bill Image Based on Hough Transform[J].Journal of Changzhou University(Natural Science Edition),2012,(02):69-72.
点击复制

基于Hough变换的票据图像倾斜校正()
分享到：

常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2012年02期
页码:
69-72
栏目:
计算机与信息工程
出版日期:
2012-03-30

文章信息/Info

Title:
Skew Detection and Correction of Bill Image Based on Hough Transform
作者:
钟 侠
江苏国光信息产业股份有限公司,江苏省高可靠多媒体服务终端工程技术研究中心,江苏 常州 213015
Author(s):
ZHONG Xia
Jiangsu Research Center of High Reliable Multimedia Service Terminal Technology,Jiangsu Guoguang Electronic Information Technology Co., Ltd.,Changzhou 213015,China
关键词:
Hough变换;  倾斜检测;  旋转变换
Keywords:
Hough transform;  skew detection;  rotation transform
分类号:
TP 393
文献标志码:
A
摘要:
针对票据图像,考虑框线变换后参数空间分布,提出了一个改进的基于Hough变换的票据图像倾斜检测与校正方法。通过对图像进行平移变换,选择图像中心作为原点,使得框线变换后的参数空间,呈现对称的蝶形,从而更容易检测出峰值点,得到精确的票据图像倾斜角度。实验结果验证了提出方法的有效性,与传统方法相比,检测的倾斜角度更加精确,具有更强的抗噪声能力。
Abstract:
By considering the parameter distribution of frame linesin bill image, a method of skew detection and correction for bill image is proposed. The center of image is used as the coordinates origin by translating. The shape in parameter space of form lines is butterfly-like. The peak of accumulatoris detected more easily and the accurate skew angle is detected. Experimental results validate the proposed method. Compared with the traditional method, thismethod is more accurate and robust for the image noise.

参考文献/References:

[1]张艳,郁生阳,张重阳,等.表格型票据中框线检测与去除算法[J].计算机研究与发展,2008,45(5):909-914.
[2]张重阳,娄震,徐勇,等.票据图像中的格线检测与去除[J].计算机工程与设计,2005,26(7):1778-1780.
[3]张丘,马利庄,高岩,等.票据图像预处理方法的研究[J].计算机仿真,2005,22(10):208-211.
[4]张丘,马利庄,高岩.基于方向投影的票据图像倾斜检测方法[J].计算机应用,2004,24(9):50-51.
[5]瞿洋,杨利平.Hough变换OCR图象倾斜矫正方法[J].中国图象图形学报,2001,6(2):178-181.
[6]Le D S,Thoma G R,Wechsler H.Automated page orientation and skew angle detection for binary document images[J].Pattern Recognition,1997,27(10):1325-1344.
[7]Srihari S N,Govindaraju V.Analysis of textual images using the Hough transform[J]. Machine Vision and Applications,1989,2(3):141-153.
[8]Duda R O,Hart P E.Use of the hough transform to detect lines and curves inpictures[J].Communications of ACM,1972,15(1):11-15.
[9]Aggarwal N,Karl W C.Line detection in images through regularized hough transform[J]. IEEE Trans on Image Processing, 2006,15(3):582-591.
[10]周冠玮,平西建,程娟.基于改进Hough变换的文本图像倾斜校正方法[J].计算机应用,2007,27(7):1813-1816.
[11]梁添才,皮佑国,彭晶,等.基于Hough变换的列车客运票图像倾斜校正[J].华南理工大学学报(自然科学版),2007,35(5):35-40.

备注/Memo

备注/Memo:
作者简介:钟侠(1972-),男,江苏常州人,高级工程师,工程硕士。
更新日期/Last Update: 2012-03-30