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  • 标题:Comparison and Verification of Optical 3-D Surface Measurement Systems
  • 本地全文:下载
  • 作者:Thomas Luhmann ; Folkmar Bethmann ; Benjamin Herd
  • 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
  • 关键词:Image Sequence; Surface; Modelling; Image Matching; Least Squares; Fringe Projection; Accuracy
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