Occlusion detection analysis based on two different DSM models in true orthophoto generation

摘要：

The traditional orthophoto rectification often suffers from the problems of building lean and double mapping,etc.,which are caused by no detecting the occluded areas ,therefore ,many improved occlusion detection methods had been discussed to solve these problem ,such as angle and height based ray tracing method,angle-based method and Z-buffer method,etc.Angle and height based ray tracing method based on two different DSM models will be discussed in this paper,Experimental results demonstrate that the accuracy based on TIN DSM is better than that based on dense grid DSM.

关键词： True orthophoto occlusion detection double mapping TIN DSM grid DSM

作者: Wang Xiao Jiang Wanshou Bian Fuling

作者单位: Wuhan University,129 Luo yu Road,Wuhan,HB,China

会议类型: 国际会议

会议名称: 第16届国际地理信息科学与技术大会(16th International Conference on GeoInformatics and the Joint Conference)

会议地点: 广州

会议语种:英文

在线出版日期: 2008-06-28（万方平台首次上网日期，不代表论文的发表时间）