Wavelet priors for multiframe image restoration

Premchandra Shankar; Mark Neifeld

doi:10.1117/12.720939

25 April 2007 Wavelet priors for multiframe image restoration

Premchandra Shankar, Mark Neifeld

Proceedings Volume 6575, Visual Information Processing XVI; 65750D (2007) https://doi.org/10.1117/12.720939
Event: Defense and Security Symposium, 2007, Orlando, Florida, United States

Abstract

It is known that the distributions of wavelet coefficients of natural images at different scales and orientations can be approximated by generalized Gaussian probability density functions. We exploit this prior knowledge within a novel statistical framework for multi-frame image restoration based on the maximum a-posteriori (MAP) algorithm. We describe an iterative algorithm for obtaining a high-fidelity object estimate from multiple warped, blurred, and noisy low-resolution images. We compare our new method with several other techniques including linear restoration, and restoration using Markov Random Field (MRF) object priors. We will discuss the performances of the algorithms.

Citation Download Citation

Premchandra Shankar and Mark Neifeld "Wavelet priors for multiframe image restoration", Proc. SPIE 6575, Visual Information Processing XVI, 65750D (25 April 2007); https://doi.org/10.1117/12.720939

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