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6 September 2017 Super-resolution imaging with one complex filter based on compressive sensing
Yicheng Sun, Guohua Gu, Xiubao Sui, Yuqi Li
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Proceedings Volume 10410, Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2017; 1041018 (2017) https://doi.org/10.1117/12.2271155
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States
Abstract
Super-resolution is being considered as one of the important goals for optical imaging and image processing. In this paper, we present a novel imaging technique that exceeds the limit of resolving power of diffraction-limited optical system to achieve super-resolution imaging, by combining the advantages of compressive sensing and complex annular filters. This technique is realized by utilizing a classical 4F optical system with a phase-only spatial light modulator. Furthermore, the feasibility of this technique is theoretically analyzed, and physically validated by laboratory experiments. Experimental results demonstrated that this technique improves the resolving power of diffraction-limited optical system by approximately 1.58 times, and the intensity image of high-resolution object can be recovered from 25% of the total number of measurements.
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Yicheng Sun, Guohua Gu, Xiubao Sui, and Yuqi Li "Super-resolution imaging with one complex filter based on compressive sensing", Proc. SPIE 10410, Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2017, 1041018 (6 September 2017); https://doi.org/10.1117/12.2271155
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KEYWORDS
Super resolution
Imaging systems
Compressed sensing
Image filtering
Image processing
Optical filters
Phase retrieval
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