8 October 2015 The Implementation of non-uniformity correction in multi-TDICCD imaging system
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Proceedings Volume 9675, AOPC 2015: Image Processing and Analysis; 96750A (2015) https://doi.org/10.1117/12.2197030
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China
Abstract
Abstract—a non-uniformity correction algorithm is proposed and implemented on a Field-Programmable Gate Array (FPGA) hardware platform to solve a problem of pixel response non-uniformity(PRNU) for multiple Time Delay and Integration Charge Couple Device(TDICCD) camera. The non-uniformity is introduced and a synthetical correction algorithm is presented, in which the two-point correction method is applied to a single channel, gain averaging correction method among multi-channel and scene-adaptive correction method among multiple-TDICCD. Then, the correction algorithm is generated. Finally, the FPGA ability for fix-point processing is analyzed; the correction algorithm is optimized, and implemented on FPGA. Testing results indicate that the non-uniformity can be decreased from 8.27% to 0.51% for three TDICCDs camera's images with this proposed correction algorithm, proving that this correction algorithm is with high real-time performance, great engineering realization and satisfaction for the system requirements.
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Guofang Zhai, Guofang Zhai, Yun Cheng, Yun Cheng, Zhixue Han, Zhixue Han, Dong Wang, Dong Wang, } "The Implementation of non-uniformity correction in multi-TDICCD imaging system", Proc. SPIE 9675, AOPC 2015: Image Processing and Analysis, 96750A (8 October 2015); doi: 10.1117/12.2197030; https://doi.org/10.1117/12.2197030
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