Restoration of Images with Poisson Noise

Zeng Wenqing; Zhang Bairong; Yang Weimin

Publications of the Yunnan Observatory > 1994 > 0(2): 36-48.

Zeng Wenqing, Zhang Bairong, Yang Weimin. Restoration of Images with Poisson Noise[J]. Publications of the Yunnan Observatory, 1994, (2): 36-48.

Citation:

Zeng Wenqing, Zhang Bairong, Yang Weimin. Restoration of Images with Poisson Noise[J]. Publications of the Yunnan Observatory, 1994, (2): 36-48.

Citation:

Zeng Wenqing, Zhang Bairong, Yang Weimin. Restoration of Images with Poisson Noise[J]. Publications of the Yunnan Observatory, 1994, (2): 36-48.

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Restoration of Images with Poisson Noise

Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011

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Received Date: June 29, 1992
Published Date: April 14, 1994

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Abstract

Abstract

In this paper it is pointed out that the noise in a CCD image will be mainly the Poisson noise, which is the signal-dependent noise, with the technological background of CCD images. Using statistics and model of the image formation, we present three different nonlinear restoration methods:Maximum Likelihood(ML), Maximum a Posteriori(MAP), Maximum Entropy(ME). We derive the algorithm and parameters estimate method for the MAP restoration, and propose the image sectioning to speed up the restoration and save memory space.
- Image reconstruction,
- CCD

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