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：119-124
出版社：Copernicus Publications
摘要：Today, close range photogrammetry is known as an accurate and automatic 3D geometric measurement method especially for 3D point features (targets), but unfortunately it needs human supervision for 3D surface measurement due to nature of image matching problem. Therefore, in the last decade, coded structured light technique surpasses as one of the main complementary automatic and precise 3D surface measurement methods in different industrial and medical applications. Regardless of hardware considerations, the accuracy of structured light method highly depends on system calibration issue. Calibration of the projector, which is one of the major components of the structured light system, is a very difficult, time-consuming and expensive process. In this paper, the close range photogrammetry method is utilized for direct calibration of a projector. The experiments demonstrate the proposed method not only is a low-cost and high-speed process but also is capable to calibrate the projector with precision as 20 times of projector resolution. With this level of potential, we could achieve the relative accuracy of 1:13000 for 3D surface measurement
关键词：Close range photogrammetry; structured light; projector calibration; geometric distortion
