液晶与显示2012，Vol.27Issue(4)：552-556,5.DOI:10.3788/YJYXS20122704.0552
基于改进Hough变换和透视变换的透视图像矫正
Perspective Image Rectification Based on Improved Hough Transformation and Perspective Transformation
摘要
Abstract
When the images collected from camera have perspective distortion, it can affect the following work such as feature extraction and object recognition due to the influence of perspective projection. When rectifying these distorted images, perspective transformation can change the relative position of inner points, while affine transformation cannot. This article will improve the Hough transformation to find the lines that hold the four points which perspective transformation needs, and then use the perspective transformation to rectify the distortion based on the imaging principle of cameras. Emulation experiment results from Matlab reveal that the algorithm can effectively rectify the distorted images and achieve our expectation. This algorithm is easy, feasible and robust, and can be applied to many fields including object recognition.关键词
图像处理/图像矫正/霍夫变换/透视变换Key words
image process/ image rectification/ Hough transformation/ perspective transformation分类
信息技术与安全科学引用本文复制引用
代勤,王延杰,韩广良..基于改进Hough变换和透视变换的透视图像矫正[J].液晶与显示,2012,27(4):552-556,5.基金项目
国家自然科学基金(No.61172111) （No.61172111）
