SWDC-5倾斜摄影建筑物纹理自动映射方法Building texture auto-mapping based on SWDC-5 oblique photogrammetry
刘力荣,左建章,岳贵杰
摘要(Abstract)：
针对国内关于倾斜影像的处理方法尚不成熟这一现状,该文基于机载LiDAR点云建立的房屋模型,结合SWDC-5倾斜航摄仪获取的影像和POS数据,阐述倾斜摄影建筑物房屋模型纹理自动映射的方法和流程。基于摄影测量基本原理,定义几种基本的房屋类型,结合DEM和外方位元素,采用房屋面多边形角点判断法和面积计算法选择最优像片,采用摄影中心与多边形角点连结光束与遮挡面的交点判断法来实现遮挡判断,并通过间接法纹理纠正及纹理编辑得到最优模型纹理。经实测数据验证,表明了该纹理映射方法的正确性和可行性。
关键词(KeyWords)： SWDC-5;倾斜像片;纹理;自动映射
基金项目(Foundation): 对地观测技术国家测绘地理信息局重点实验室开放基金资助项目(K201306);; 国家科技支撑计划项目(2012BAH34B01)
作者(Author): 刘力荣,左建章,岳贵杰
DOI: 10.16251/j.cnki.1009-2307.2015.08.014
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