期刊名称:ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN:2194-9042
电子版ISSN:2194-9050
出版年度:2008
卷号:XXXVII Part B5
页码:51-56
出版社:Copernicus Publications
摘要:The following paper is a summary and comparison of different optical measuring systems for free-form surface measurement according to their achieved accuracy. The investigation includes three fringe projection systems, two stereo image-based matching methods and one object-based multi-image matching method. The accuracy is assessed by use of a 3D surface reference body consisting of a double sine curved surface. The reference body has been calibrated by a coordinate measuring machine whereby the measured 3D points are used to calculate a NURB splines surface model. The resulting CAD model is used as a reference for the optical measurements. The surface has Lambertian reflectance properties, thus fringe projection systems can be used without object preparation. For photogrammetric matching the reference body is pasted by a very thin texture foil