大面阵数字航空相机DMZ影像预处理研究  

Research on Image Preprocessing of Large Format Digital Aerial Camera DMZ

作　　者：赵桂华[1,2] 方勇[2] 戴晨光[1] 邹晓亮 陈虹[2] 

机构地区：[1]信息工程大学地理空间信息学院,河南郑州450052 [2]西安测绘研究所,陕西西安710054 [3]西安测绘总站,陕西西安710054

出　　处：《地理空间信息》2013年第2期49-52,9,共4页Geospatial Information

基　　金：国家863计划资助项目(2008AA121203;2011AA7013031)

摘　　要：对国产新型内拼式大面阵数字航测相机DMZ原型系统获取的数字影像进行几何预处理的方法进行了研究;在分析DMZ全色成像光路特点的基础上,提出了多相机联合的影像几何校正与缝合方法,生成等效虚拟立体影像。利用等效虚拟立体影像进行了3种布控方案的数字空三平差和精度分析,验证了该方法的正确性和可靠性,实现了对DMZ影像预处理的探索性研究。The paper researched on image preprocessing of Large Format Digital Aerial Camera DMZ,which was a new prototype camera system with the design idea of internal stitching and mosaic.The architecture of panchromatic optical channel characteristics in DMZ was analyzed.Based on its unique characteristics,a geometric correction method of multi-camera combination had been proposed,which 6 sub-pan original images were merged to a full frame pan image by stitching algorithm.In order to validate the method reliability and correctness,the result of aerial triangulation was calculated by stereo virtual images.The experiment results were analyzed and evaluated using three different GCPs layout scheme.The method of image preprocessing is an exploratory experimental study on DMZ camera.

关 键 词：航空遥感数字影像 几何校正 辐射校正 影像缝合 等效虚拟全色影像 

分 类 号：P237[天文地球—摄影测量与遥感]