An Improved Direct Current Prediction Method for Intra Coding

Chang Nian Chen; Rui Zhu

doi:10.4028/www.scientific.net/AMM.333-335.749

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 333-335An Improved Direct Current Prediction Method for...

An Improved Direct Current Prediction Method for Intra Coding

Abstract:

Direct current mode is one of the primary prediction modes for intra coding. In the coding standard, it has not concerned the spatial correlations between neighboring pixels, which limits its coding performance. To address this problem, an improved prediction method is proposed in this paper. In the prediction scheme, prediction pixel uses its available neighbor samples and its value is set to be the mean of the references. The reference samples are not only from other encoder blocks but also pixels predicted in current block. Experimental results demonstrate that the proposed method advances in both coding performance and coding efficiency, compared with the existing method.

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Periodical:

Applied Mechanics and Materials (Volumes 333-335)

Pages:

749-752

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.333-335.749

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Online since:

July 2013

Authors:

Chang Nian Chen, Rui Zhu

Keywords:

Direct Current (DC), Intra Coding, Spatial Correlation

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References

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