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Proceedings Paper

Space-time-domain median filtering in low-light-level noise processing
Author(s): Qian Chen; Lianfa Bai; Guohua Gu; Yu Wang
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Paper Abstract

The random flicker noise is the main character of low-light- level (LLL) image, so the noise suppressing is a key technique for LLL image processing. In this paper, the noise sources and its characteristics of LLL image are studied, and varied existing noise processing techniques are analyzed. On the basis of these, a novel filtering approach, space-time domain median filter, is presented. In this approach, the time correlation of LLL TV image is utilized and the time domain median filter is combined with the space domain median filter. Therefore the LLL image noise is reduced significantly, and the quality of LLL image is improved greatly.

Paper Details

Date Published: 30 September 1996
PDF: 3 pages
Proc. SPIE 2898, Electronic Imaging and Multimedia Systems, (30 September 1996); doi: 10.1117/12.253394
Show Author Affiliations
Qian Chen, Nanjing Univ. of Science and Technology (China)
Lianfa Bai, Nanjing Univ. of Science and Technology (China)
Guohua Gu, Nanjing Univ. of Science and Technology (China)
Yu Wang, Nanjing Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 2898:
Electronic Imaging and Multimedia Systems
Chung-Sheng Li; Robert L. Stevenson; LiWei Zhou, Editor(s)

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