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Proceedings Paper

Theory and experiment study on low-light-level (LLL) image by topology mode filters
Author(s): Lianfa Bai; Qian Chen; Dekui Yin; Baomin Zhang
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Paper Abstract

Real-time low light level (LLL) image processing technology is the important developmental subject in the area of LLL night vision. But there is an essential distinction between the LLL TV image and the ordinary TV image, so the conventional digital image processing techniques are not suitable for LLL image. In this paper, on the basis of the analysis on the main noise sources of the LLL CCD TV System that our research laboratory developed, new types of theory and technique, topology mode filters, are put forward and taken to process LLL image. Topology mode filters include linear combination of mode filters, weighted-mode filter, iterated-mode filter and adaptive-mode filter. The LLL Image Processing System and the LLL TV Signal and Noise Test and Analysis System are set up specially. By using topology mode filters, the LLL image quality is improved greatly and the processing results are given out. Theory and experiment results show that topology mode filter is better than simple mode filter.

Paper Details

Date Published: 19 August 1998
PDF: 5 pages
Proc. SPIE 3561, Electronic Imaging and Multimedia Systems II, (19 August 1998); doi: 10.1117/12.319717
Show Author Affiliations
Lianfa Bai, Nanjing Univ. of Science and Technology (China)
Qian Chen, Nanjing Univ. of Science and Technology (China)
Dekui Yin, Nanjing Univ. of Science and Technology (China)
Baomin Zhang, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 3561:
Electronic Imaging and Multimedia Systems II
LiWei Zhou; Chung-Sheng Li, Editor(s)

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