Application of photogrammetric technique to astronomical telescope measurement and control

Dehua Yang; Jingquan Cheng

doi:10.1117/12.551643

29 September 2004 Application of photogrammetric technique to astronomical telescope measurement and control

Dehua Yang, Jingquan Cheng

Proceedings Volume 5495, Astronomical Structures and Mechanisms Technology; (2004) https://doi.org/10.1117/12.551643
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

The photogrammetry technique is widely used for measuring 3-D shape in diverse industries thanks to its easy implementation and straightforward algorithm. However, most measurements done by this technique are using a single camera with multi-exposure and the results are derived after a period of time. Along with the development of the CCD and computer technology, it is now possible to use multi-camera, real-time photogrammetric measurements and the results could be derived without much time delay. A multi-camera system avoids the error caused by time-delayed exposure. So the new technique could be widely used in telescope surface or position measurement and control. In this paper, the pertinent formulations, implementation and application details are discussed before a general conclusion is drawn.

Citation Download Citation

Dehua Yang and Jingquan Cheng "Application of photogrammetric technique to astronomical telescope measurement and control", Proc. SPIE 5495, Astronomical Structures and Mechanisms Technology, (29 September 2004); https://doi.org/10.1117/12.551643

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