1 October 2007 Experimental study on imaging and image restoration of optical sparse aperture systems
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Abstract
Optical sparse-aperture systems can be designed to obtain a high resolution when imaging an astronomical object. These systems are the arrays synthesized by several small filled imaging systems. A principal experiment is set up for an optical sparse-aperture system by which imaging of an extended complex object is achieved. Image restoration of the direct output by the sparse-aperture system is performed by measuring the point-spread functions (PSF) and by using a Weiner filter. The correlation coefficient is proposed as a criterion to determine the optimal parameter and to evaluate the performance of the algorithms. The results show that among the three kinds of configuration models, the Tri-Arm array configuration can produce the highest resolution and largest correlation coefficient value after the restoration. Accordingly, the experimental data, demonstrate that an optical sparse-aperture system can achieve almost the same resolution and image quality as an equivalent filled system.
© (2007) Society of Photo-Optical Instrumentation Engineers (SPIE)
Dayong Wang, Dayong Wang, Ji Han, Ji Han, Hancheng Liu, Hancheng Liu, Shiquan Tao, Shiquan Tao, Xiyang Fu, Xiyang Fu, Hongfeng Guo, Hongfeng Guo, } "Experimental study on imaging and image restoration of optical sparse aperture systems," Optical Engineering 46(10), 103201 (1 October 2007). https://doi.org/10.1117/1.2799512 . Submission:
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