物方多视匹配算法的严密投影辐射线模型  

Research on rigorous projection line of object space multi-view matching model

作　　者：范大昭[1] 纪松[1] 张永生[1] 戴晨光[1] 

机构地区：[1]信息工程大学地理空间信息学院,郑州450052

出　　处：《测绘科学》2014年第9期7-10,共4页Science of Surveying and Mapping

基　　金：国家863计划项目(2009AA12Z218);国家自然科学基金项目(40901230);中国测绘科学研究院国家测绘地理信息局重点实验室开放基金项目(201202)

摘　　要：多基线影像匹配技术比单立体影像匹配更好地解决了影像的相似特征、遮挡特征等问题。文章针对线阵影像的几何成像特点,设置传感器成像参数,根据地面铅垂线对应的像点变化关系,推导了物方多视铅垂线匹配算法(MVLL)的"投影辐射线"严密函数表达式,并给出了分析结论。最后分别采用模拟数据与实际遥感影像数据进行了实验分析,结果证明:投影辐射线在局部范围内可近似为直线使用,其误差对最终匹配结果无影响。According to geometric characteristics of line-array digital imagery, parameters of imaging sensors were set, and rigorous projection line equations for MVLL multi-view matching model were de- duced through the analysis of image points corresponding to a plumb line in the paper. Experiments were done on both simulation data and remote sensing image data finally. The experimental results proved that correlation lines could be used as straight line on local matching areas, and the error would have no nega tire effects on the final matching results.

关 键 词：MVLL 线阵 多视匹配 投影辐射线 铅垂线 

分 类 号：P23[天文地球—摄影测量与遥感]