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Proceedings Paper

Aerial camera auto focusing system
Author(s): Xuan Wang; Gongpu Lan; Xiaodong Gao; Wei Liang
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Paper Abstract

Before the aerial photographic task, the cameras focusing work should be performed at first to compensate the defocus caused by the changes of the temperature, pressure etc. A new method of aerial camera auto focusing is proposed through traditional photoelectric self-collimation combined with image processing method. Firstly, the basic principles of optical self-collimation and image processing are introduced. Secondly, the limitations of the two are illustrated and the benefits of the new method are detailed. Then the basic principle, the system composition and the implementation of this new method are presented. Finally, the data collection platform is set up reasonably and the focus evaluation function curve is draw. The results showed that: the method can be used in the Aerial camera focusing field, adapt to the aviation equipment trends of miniaturization and lightweight .This paper is helpful to the further work of accurate and automatic focusing.

Paper Details

Date Published: 15 October 2012
PDF: 6 pages
Proc. SPIE 8417, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 84170N (15 October 2012); doi: 10.1117/12.970285
Show Author Affiliations
Xuan Wang, Institute of Optics and Electronics (China)
Graduate Univ. of Chinese Academy of Science (China)
Gongpu Lan, Institute of Optics and Electronics (China)
Xiaodong Gao, Institute of Optics and Electronics (China)
Wei Liang, Institute of Optics and Electronics (China)


Published in SPIE Proceedings Vol. 8417:
6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
Yudong Zhang; Libin Xiang; Sandy To, Editor(s)

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