倾斜影像的三维纹理快速重建  

Rapidly 3D Texture Reconstruction Based on Oblique Photography

作　　者：张春森[1] 张卫龙[1] 郭丙轩[2] 刘健辰[3] 李明[3] 

机构地区：[1]西安科技大学测绘科学与技术学院,陕西西安710054 [2]武汉大学测绘遥感信息工程国家重点实验室,湖北武汉430079 [3]武汉大学遥感信息工程学院,湖北武汉430079

出　　处：《测绘学报》2015年第7期782-790,共9页Acta Geodaetica et Cartographica Sinica

基　　金：国家973计划(2012CB719905);中央高校基本科研业务费(410500015)~~

摘　　要：针对三维城市模型重建,提出了一种利用倾斜影像实现城市模型纹理快速重建的方法。该方法基于摄影测量计算机视觉理论,在事先处理得到城市建筑物数字表面模型的基础上,利用共线方程计算物方与像方的几何投影关系,获得建筑物的三维信息与纹理信息。通过一定的最优算法选择出地物面的理想纹理,实现城市建筑物纹理的自动提取及稠密建筑物纹理的遮挡处理。真实影像纹理重建的结果表明:应用本文方法进行三维城市模型纹理重建具有自动化程度高、效果逼真、成本低的特点,为快速、大面积的城市真三维模型纹理重建提供了一种有效的实现途径。This paper proposes a city texture fast reconstruction method based on aerial tilt image for reconstruction of three-dimensional city model. Based on the photogrammetry and computer vision theory and using the city building digital surface model obtained by prior treatment, through collinear equation calculation geometric projection of object and image space, to obtain the three-dimensional information and texture information of the structure and through certain the optimal algorithm selecting the optimal texture on the surface of the object, realize automatic extraction of the building side texture and occlusion handling of the dense building texture. The real image texture reconstruction results show that. the method to the 3D city model texture reconstruction has the characteristics of high degree of automation, vivid effect and low cost and provides a means of effective implementation for rapid and widespread real texture rapid reconstruction of city 3D model.

关 键 词：三维城市模型 纹理重建 倾斜影像 遮挡处理 

分 类 号：P234[天文地球—摄影测量与遥感]