%0 Journal Article
%T Skew detection and correction method of document images based on improved Hough transform<br>基于改进Hough变换的文本图像倾斜校正方法
%A ZHOU Guan-wei
%A PING Xi-jian
%A CHENG Juan
%A <br>周冠玮
%A 平西建
%A 程娟
%J 计算机应用
%D 2007
%I 
%X The skew of document images originated from scanning will bring much trouble to page segmentation and optical character recognition(OCR).Although traditional standard Hough transform is insensitive to noise and discontinuous,it has limitation in application because of huge calculation.A skew detection and correction of document images based on improved Hough transform was presented.Text-line direction extraction in multi-resolution image and reasonable voting threshold selection were introduced to reduce the affect brought by image skew.Experimental results show that this method is effective and accurate in skew detection and correction of document images.
%K document image
%K Hough transform
%K morphology
%K run-length smoothing
%K multi-resolution image<br>文本图像
%K Hough变换
%K 数学形态学
%K 游程平滑
%K 变分辨率图像
%K 改进
%K Hough
%K transform
%K 变换
%K 文本方向
%K 图像倾斜
%K 校正方法
%K improved
%K based
%K images
%K document
%K method
%K of
%K correction
%K detection
%K 快速检测
%K 精度
%K 范围
%K 算法实现
%K 结果
%K 实验
%K 快速校正
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=831E194C147C78FAAFCC50BC7ADD1732&aid=14E16CBD27430512D9C97E14133D28B3&yid=A732AF04DDA03BB3&vid=DB817633AA4F79B9&iid=DF92D298D3FF1E6E&sid=D217FECA03012AA9&eid=E0149A2AB2D6E4E8&journal_id=1001-9081&journal_name=计算机应用&referenced_num=0&reference_num=10