基于ASIFT的低重叠度图像拼接研究  

Research on low overlapping image stitching based on ASIFT image matching algorithm

作　　者：何永洁[1] 陈孝威[1] 

机构地区：[1]贵州大学计算机科学与信息学院,贵州贵阳550025

出　　处：《计算机工程与设计》2013年第2期561-565,共5页Computer Engineering and Design

基　　金：贵州省省长基金项目(黔省专合字(2007)14号)

摘　　要：为了解决在图像重叠度过低时,采用常用的SIFT图像匹配算法,造成图像拼接困难的问题,提出了一种基于ASIFT的低重叠度图像拼接方法。ASIFT图像匹配算法相较于SIFT图像匹配算法,在低重叠度条件下,能够检测出更丰富的匹配点,且具有更高的匹配精度。根据这一特性,该方法采用ASIFT图像匹配算法进行特征点检测与匹配,然后利用其结果进行图像拼接。实验结果表明,这种方法在图像重叠度很低的情况下,也能够取得良好的拼接结果。In order to solve the problem that the usual SIFT image matching algorithm causes the image stitching difficult, When the degree of overlap of two pictures is low, the method of low overlapping image stitching based on ASIFT image matching algo rithm is presented. Compared with SIFT image matching algorithm, ASIFT image matching algorithm can detect more feature points, and has higher precision of matching. Based on the characteristics of the ASIFT, the method adopts ASIFT image matc hing algorithm to detect and match feature points, and image stitching is carried out by using the results. The experiments show that a good stitching result can be achieved by this method when the degree of overlap of pictures is very low.

关 键 词：低重叠度图像 SIFT(尺度不变的特征变换方法) ASIFT(仿射尺度不变的特征变换方法) 图像匹配 变换矩阵 图像拼接 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]