Morphological dilation image coding with context weights prediction

Details Morphological dilation image coding with context weights prediction Morphological dilation image coding with context weights prediction

2010-09-29

arxiv.org/abs/1009.5762v1

Computer Science

Information Theory

33 pages, 7 figures, submitted to Signal Processing: Image Communication

Scientific paper

This paper proposes an adaptive morphological dilation image coding with context weights prediction. The new dilation method is not to use fixed models, but to decide whether a coefficient needs to be dilated or not according to the coefficient's predicted significance degree. It includes two key dilation technologies: 1) controlling dilation process with context weights to reduce the output of insignificant coefficients, and 2) using variable-length group test coding with context weights to adjust the coding order and cost as few bits as possible to present the events with large probability. Moreover, we also propose a novel context weight strategy to predict coefficient's significance degree more accurately, which serves for two dilation technologies. Experimental results show that our proposed method outperforms the state of the art image coding algorithms available today.

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