Efficient embedded wavelet codec based on list structure

Gan, Tao; He, Yejun; Zhu, Wei

doi:10.1016/j.imavis.2007.10.009

Cited by 2 publications

(2 citation statements)

References 15 publications

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“…Our experiments are performed on the 512×512, 8-bit standard gray images including Barbara, Lena, Goldhill, Baboon, Tank and Finger using 5-level 9/7 floating Daubechies filers [12]. The new method without arithmetic coding is compared with SPECK [5], SPIHT [2], EZBC [7], Modified SPIHT [4] and WBTC [9].…”

Section: Experiments and Resultsmentioning

confidence: 99%

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Morphological dilation image coding with context weights prediction

Paul

Xiao

et al. 2010

Signal Processing: Image Communication

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a b s t r a c tThis 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 a coefficient's significance degree more accurately, which can be used 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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Section: Experiments and Resultsmentioning

confidence: 99%

“…Through analyzing the disadvantages of quad-tree coding and present dilation methods, a direct and perceptively improved coding method is to integrate morphological dilation operation with quad-tree coding [12]. However, many drawbacks of present dilation methods limit the performance of the whole coding method.…”

Section: Introductionmentioning

confidence: 99%