Research on image preprocessing techniques needed for long-distance camera scanning Fourier ptychographic imaging

Jing Wang; Hui Zhao; Mingyang Yang; Zhixin Li; Meng Xiang; Yuming Wang; Xuewu Fan

doi:10.1117/12.2579989

5 November 2020 Research on image preprocessing techniques needed for long-distance camera scanning Fourier ptychographic imaging

Jing Wang, Hui Zhao, Mingyang Yang, Zhixin Li, Meng Xiang, Yuming Wang, Xuewu Fan

Author Affiliations +

Proceedings Volume 11567, AOPC 2020: Optical Sensing and Imaging Technology; 115672R (2020) https://doi.org/10.1117/12.2579989
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China

Abstract

With the development of the fourier ptychography in microscopy imaging, more and more researchers consider applying fourier ptychography in long-distance imaging. However being different from microscopic imaging, long distance fourier ptychographic imaging will face more challenges, one of which is the source image quality. In this manuscript, the influence of the source image quality on camera scanning FP imaging will be investigated and simulated. In the first part, the calibration aims to solve the influence of unenenly illumination. After that, a poisson-gaussian mixed noise model based denoising is uesd and could effectively suppresses the noise through parameter estimation. Finally, Phase correalation regisitrtion has to be used to correct the mismatch between adjacent images caused by camera scanning mode. The simulation results demonstrate the effectiveness of the preprocessing methods and could make FP more robust.The signal to noise ratio could reach to 40.5dB while obtained 5×improvement in resolution.

Citation Download Citation

Jing Wang, Hui Zhao, Mingyang Yang, Zhixin Li, Meng Xiang, Yuming Wang, and Xuewu Fan "Research on image preprocessing techniques needed for long-distance camera scanning Fourier ptychographic imaging", Proc. SPIE 11567, AOPC 2020: Optical Sensing and Imaging Technology, 115672R (5 November 2020); https://doi.org/10.1117/12.2579989

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