频域局部上采样的小基高比影像匹配方法  

Small baseline stereo matching method based on local up sampling in frequency domain

作　　者：申二华[1] 范大昭[1] 戴海涛[1] 孙晓昱[1] 

机构地区：[1]信息工程大学地理空间信息学院,郑州450001

出　　处：《测绘科学》2015年第2期123-127,共5页Science of Surveying and Mapping

基　　金：国家自然科学基金项目(40901230);国家教育部博士后科研基金资助项目(20080440234)

摘　　要：针对小基高比摄影测量中交会精度缺失的问题,该文利用相位相关技术计算初始匹配视差,并对相位相关互功率谱进行局部上采样,探讨了一种适用于小基高比立体影像的高精度影像匹配算法。实验结果表明,在一定条件下该算法有着较高的匹配精度,能够用于小基高比立体影像重建可靠的高程信息。The loss of the height precision can be compensated by high-precision image matching.In the paper,for the sub-pixel image matching problem,a high-precision image matching algorithm was discussed,which firstly computes the rude parallax using the phase correlation method and then up-samples the local cross power spectrum gained by phase correlation.The experimental results demonstrated that in certain conditions the proposed algorithm could achieve fairly high matching precision in reconstructing the reliable height information for small baseline stereo images.

关 键 词：小基高比 相位相关 上采样 匹配精度 

分 类 号：P231.4[天文地球—摄影测量与遥感]