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Proceedings Paper

Linear CCD pixel-response nonuniformity correction algorithm
Author(s): Ning Lei; Chunmei Li; Kun Wang; Tao Li
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Paper Abstract

The non-uniformity correction of linear Charge-Coupled Devices (CCD) remote camera is essential to gain high quality image. In this paper, a novel Pixel-Response Non-Uniformity (PRNU) correction algorithm is proposed. The disadvantages of traditional correction algorithm, which is the output of dark pixel does not really reflect the current dark current when CCD is partial saturation, is overcome. Secondly, the flat fielding algorithm is improved. The correction algorithm is divided into two independent components based on the mechanism of PRNU, which are dark current noise and its non-uniformity and photoelectricity non-uniformity. Finally, the digital gain function is introduced. The experimental results show that the proposed algorithm can eliminate the image degradation caused by dark current noise and its non-uniformity and photoelectricity non-uniformity. The performance of imaging system is improved.

Paper Details

Date Published: 15 October 2012
PDF: 9 pages
Proc. SPIE 8419, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy, 84192B (15 October 2012); doi: 10.1117/12.977643
Show Author Affiliations
Ning Lei, Beijing Institute of Space Mechanics and Electricity (China)
Chunmei Li, Beijing Institute of Space Mechanics and Electricity (China)
Kun Wang, Beijing Institute of Space Mechanics and Electricity (China)
Tao Li, Beijing Institute of Space Mechanics and Electricity (China)


Published in SPIE Proceedings Vol. 8419:
6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy
Yadong Jiang; Junsheng Yu; Zhifeng Wang, Editor(s)

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