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Proceedings Paper

Pixel response non-uniformity correction for multi-TDICCD camera based on FPGA
Author(s): Guofang Zhai
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Paper Abstract

A non-uniformity correction algorithm is proposed and implemented on a Field-Programmable Gate Array (FPGA) hardware platform to solve a pixel response non-uniformity(PRNU) problem of multi Time Delay and Integration Charge Couple Device(TDICCD) camera. The non-uniformity are introduced and the synthetical correction algorithm is presented, in which the two-point correction method is used in a single channel, gain averaging correction method among multi-channel and the sceneadaptive correction method among multi-TDICCD. Then, the correction algorithm is designed. Finally, analyzing the FPGA ability for fix-point processing, 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 the proposed correction algorithm, proving that this correction algorithm is with high real-time performance, great engineering realization and satisfaction for the system requirements.

Paper Details

Date Published: 24 October 2013
PDF: 5 pages
Proc. SPIE 8892, Image and Signal Processing for Remote Sensing XIX, 88921Z (24 October 2013); doi: 10.1117/12.2027349
Show Author Affiliations
Guofang Zhai, Beijing Institute of Space Mechanics and Electcity (China)

Published in SPIE Proceedings Vol. 8892:
Image and Signal Processing for Remote Sensing XIX
Lorenzo Bruzzone, Editor(s)

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