Digital Building Model Based True Ortho Rectification of Line Array Push broom Images
基于数字建筑物模型的线阵推扫影像真正射纠正

The reason why the goals of true ortho rectification can not be achieved by the replacement of digital elevation model (DEM) with digital surface model (DSM) directly is discussed at first,then the primary workflow of true ortho rectification is discussed. Aiming at automatically detecting the occlusion area of buildings,its key technical matter,a solution based on z-buffer algorithm is proposed. Experimental test using ADS40 three line images shows that related algorithms put forward in this paper is correct.