3 May 2000 Open-GL-based stereo system for 3D measurements
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Abstract
A stereo system designed and used for the measurement of 3D- coordinates within metric stereo image pairs will be presented. First, the motivation for the development is shown, allowing to evaluate stereo images. As the use and availability of metric images of digital type rapidly increases corresponding equipment for the measuring process is needed. Systems which have been developed up to now are either very special ones, founded on high end graphics workstations with an according pricing or simple ones with restricted measuring functionality. A new conception will be shown, avoiding special high end graphics hardware but providing the measuring functionality required. The presented stereo system is based on PC-hardware equipped with a graphic board and uses an object oriented programming technique. The specific needs of a measuring system are shown and the corresponding requirements which have to be met by the system. The key role of OpenGL is described, which supplies some elementary graphic functions, being directly supported by graphic boards and thus provides the performance needed. Further important aspects as modularity and hardware independence and their value for the solution are shown. Finally some sample functions concerned with image display and handling are presented in more detail.
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Frank Boochs, Frank Boochs, Anja Gehrhoff, Anja Gehrhoff, Markus Neifer, Markus Neifer, "Open-GL-based stereo system for 3D measurements", Proc. SPIE 3957, Stereoscopic Displays and Virtual Reality Systems VII, (3 May 2000); doi: 10.1117/12.384435; https://doi.org/10.1117/12.384435
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