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A filtering approach to edge preserving MAP estimation of images

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2 Author(s)
Humphrey, D. ; New South Wales Univ., Sydney, NSW, Australia ; Taubman, D.

We present a computationally efficient technique for MAP estimation of images in the presence of both blur and noise. The image is divided into statistically independent regions. Each region is modelled with a WSS Gaussian prior. Classical Wiener filter theory is used to generate a set of convex sets in the solution space, with the solution to the MAP estimation problem lying at the intersection of these sets. The proposed algorithm uses an underlying segmentation of the image, and a means of determining the segmentation and refining it are described. The algorithm is suitable for demosaicking of digital camera images and other image restoration problems.

Published in:

Image Processing, 2004. ICIP '04. 2004 International Conference on  (Volume:1 )

Date of Conference:

24-27 Oct. 2004

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