Aerial camera auto focusing system

Xuan Wang; Gongpu Lan; Xiaodong Gao; Wei Liang

doi:10.1117/12.970285

15 October 2012 Aerial camera auto focusing system

Xuan Wang, Gongpu Lan, Xiaodong Gao, Wei Liang

Proceedings Volume 8417, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 84170N (2012) https://doi.org/10.1117/12.970285
Event: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2012), 2012, Xiamen, China

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.

Citation Download Citation

Xuan Wang, Gongpu Lan, Xiaodong Gao, and Wei Liang "Aerial camera auto focusing system", Proc. SPIE 8417, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 84170N (15 October 2012); https://doi.org/10.1117/12.970285

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