Component-based image coding using non-local means filtering and an autoregressive texture model

Authors:
Johannes Ballé;Bastian Jurczyk;Aleksandar Stojanovic
Affiliations:
Institut für Nachrichtentechnik, RWTH Aachen University, Aachen, Germany;Institut für Nachrichtentechnik, RWTH Aachen University, Aachen, Germany;Institut für Nachrichtentechnik, RWTH Aachen University, Aachen, Germany
Venue:
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Year:
2009

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Abstract

While noise is usually regarded as a problem of the image formation process, we observe that it is also frequently part of natural texture. In this paper, we present a concept for improved compression of noisy texture in natural images. Since noise is problematic to decorrelation-based compression methods, we propose to perform image decomposition by denoising, followed by separate compression of the components. The denoised component is encoded using conventional methods, while the texture component is compressed by encoding parameters of a texture model. It turns out that at similar bit rates, our method can improve visual quality.