图像重投影及其在极线校正中的应用  

Image Reprojection and Its Application to Epipolar Line Rectification

作　　者：廖晓峰[1] 许小艳[1] 刘然[1,2] 

机构地区：[1]重庆大学计算机学院,重庆400044 [2]四川虹微技术有限公司,四川成都610041

出　　处：《同济大学学报（自然科学版）》2010年第4期593-597,603,共6页Journal of Tongji University:Natural Science

基　　金：重庆大学研究生科技创新基金资助项目(200701Y1A0080194);中国博士后科学基金资助项目(20080440700)

摘　　要：针对摄像机绕光心旋转的情形,讨论了在这种特殊情形下图像重投影具有的性质,然后根据这些性质给出了使2幅图像平面平行的方法,最后介绍了图像重投影技术在极线校正中的应用,提出了一种新的极线校正方法.该极线校正方法的特点是需要采用图像重投影技术将2幅图像重投影到平行的平面.实验表明,该方法能够在完成极线校正的同时保持图像的扭曲较小.This paper first discusses the properties of the image reprojection when the camera rotates around its optical center. Then the methods for making the image planes parallel based on the properties are introduced. Finally, application of the image reprojection for epipolar line rectification is presented. A new epipolar line rectification method, which is characterized by reprojecting the images so as to make their image planes parallel, is given. The experiment results show that the presented rectification method works accurately with low image distortion.

关 键 词：图像重投影 极线校正 极线几何 单应矩阵 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]