12 January 2018 A real-time MTFC algorithm of space remote-sensing camera based on FPGA
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Abstract
A real-time MTFC algorithm of space remote-sensing camera based on FPGA was designed. The algorithm can provide real-time image processing to enhance image clarity when the remote-sensing camera running on-orbit. The image restoration algorithm adopted modular design. The MTF measurement calculation module on-orbit had the function of calculating the edge extension function, line extension function, ESF difference operation, normalization MTF and MTFC parameters. The MTFC image filtering and noise suppression had the function of filtering algorithm and effectively suppressing the noise. The algorithm used System Generator to design the image processing algorithms to simplify the design structure of system and the process redesign. The image gray gradient、dot sharpness、edge contrast and median-high frequency were enhanced. The image SNR after recovery reduced less than 1 dB compared to the original image. The image restoration system can be widely used in various fields.
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Liting Zhao, Liting Zhao, Gang Huang, Gang Huang, Zhe Lin, Zhe Lin, } "A real-time MTFC algorithm of space remote-sensing camera based on FPGA", Proc. SPIE 10620, 2017 International Conference on Optical Instruments and Technology: Optoelectronic Imaging/Spectroscopy and Signal Processing Technology, 106200J (12 January 2018); doi: 10.1117/12.2286016; https://doi.org/10.1117/12.2286016
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