广义立体像对三维重建模型精度分析  

Precision analysis of 3D reconstruction model based on generalized stereopair

作　　者：王伟玺[1,2] 宋伟东[2] 刘艳春[2] 

机构地区：[1]武汉大学测绘遥感信息工程国家重点实验室,武汉430079 [2]辽宁工程技术大学测绘与地理科学学院,辽宁阜新123000

出　　处：《测绘科学》2010年第4期31-33,共3页Science of Surveying and Mapping

基　　金：国家自然科学基金项目(No.40771159);武汉大学测绘遥感信息工程国家重点实验室开放基金项目(WKL(07)0303);博士后资助项目(20070420918)

摘　　要：本文依据基于多源遥感数据进行三维重建的思想,利用现有的对于某一区域,由不同传感器获取的高分辨率卫星影像,分别作为左右影像,建立起基于有理函数模型的严密空间前方交会数学模型,进而构建起广义立体像对,快速提取地面三维信息,实现目标物的三维重建。之后对重建的三维模型进行精度分析,并与利用传统双像立体像对重建的三维模型、以及单张影像重建的三维模型之间进行精度分析,比较三种不同方法所得到的三维模型的相对精度,并最终证明了利用广义立体像对进行地面目标的三维模型重建,其精度完全能满足生产要求。According to the idea of realizing the 3D reconstruction using different images obtained from different sensors, this paper focused on the different-source high resolution remotely sensed imagery covering the same regions, constructed the generalized stereopair, and investigated the space intersection mathematical models based on RFM. Then it quickly extracted the ground 3D information, and realized the 3D reconstruction of target objects. After that, this paper carried on the precision analysis towards the reconstructed three dimensional models, and compared the relative precision of these 3D models reconstructed utilizing three different methods, and then validated that the generalized stereopair can realize the 3D reconstruction of ground objects keeping the precision that can absolutely satisfy the requirement of production.

关 键 词：三维重建 广义立体像对 有理函数模型 相对精度 可靠性 

分 类 号：P23[天文地球—摄影测量与遥感]