基于RANSAC算法的柱面全景图拼接方法  

Cylindrical panoramic image stitching method based on RANSAC algorithm

作　　者：黄有群[1] 付裕[1] 马广焜[1] 

机构地区：[1]沈阳工业大学信息科学与工程学院,沈阳110178

出　　处：《沈阳工业大学学报》2008年第4期461-465,共5页Journal of Shenyang University of Technology

基　　金：沈阳市科技局重点资助项目(1022038-1-08)

摘　　要：针对RANSAC算法只适用于平面图像配准的局限,将RANSAC算法应用于柱面图像上,设计了一套适合柱面全景图像拼接的算法.整个算法用匹配特征点对之间的关系解决了两幅图像的旋转、垂直偏移以及柱面图像拼接时的月牙缺陷问题.实验结果表明,该方法能正确找到两幅图像的重叠位置,实现自动拼接,在基于柱面投影的全景图生成中应用,效果良好.RANSAC algorithm can only be suitable for planar image registration. Aiming at the limitation, a set of cylindrical panoramic image stitching algorithm was designed. This algorithm can make RANSAC suitable for cylindrical image stitching. The whole algorithm utilizes the relationship of matching feature points between the two images to resolve the rotation, vertical migration and crescent defects in cylindrical image stitching. The experimental results show that the present method can correctly find the overlapping location of two images and finish automatic stitching, and has good effect in the generation of panorama image based on cylindrical projection.

关 键 词：图像配准 图像拼接 RANSAC算法 柱面全景图 特征点提取 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]