Imaging Components, Systems, and Processing

Periodicity analysis on cat-eye reflected beam profiles of optical detectors

[+] Author Affiliations
Mali Gong, Sifeng He

Tsinghua University, Center for Photonics and Electronics, Department of Precision Instruments, State Key Laboratory of Precision Measurement Technology and Instruments, Beijing, China

Opt. Eng. 56(5), 053110 (May 22, 2017). doi:10.1117/1.OE.56.5.053110
History: Received March 12, 2017; Accepted May 4, 2017
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Abstract.  The cat-eye effect reflected beam profiles of most optical detectors have a certain characteristic of periodicity, which is caused by array arrangement of sensors at their optical focal planes. It is the first time to find and prove that the reflected beam profile becomes several periodic spots at the reflected propagation distance corresponding to half the imaging distance of a CCD camera. Furthermore, the spatial cycle of these spots is approximately constant, independent of the CCD camera’s imaging distance, which is related only to the focal length and pixel size of the CCD sensor. Thus, we can obtain the imaging distance and intrinsic parameters of the optical detector by analyzing its cat-eye reflected beam profiles. This conclusion can be applied in the field of non-cooperative cat-eye target recognition.

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© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Mali Gong and Sifeng He
"Periodicity analysis on cat-eye reflected beam profiles of optical detectors", Opt. Eng. 56(5), 053110 (May 22, 2017). ; http://dx.doi.org/10.1117/1.OE.56.5.053110


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