Cluster Adapted Signalling for Intra Prediction in HEVC

Abstract : The High Efficiency Video Coding (HEVC) standard defines 35 Intra Prediction Modes (IPM) to provide an efficient compression of intra coded blocks. Those IPMs are signalled to the decoder through the use of three compression tools: prediction, clustering and coding. In this paper we provide improvements to these three tools through: new labels for the prediction, new tests for the clustering and new coding schemes for the coding. The most significant improvement consists in the provision of a cluster-dependent code: adapting the coding scheme to the available information enables the average symbol cost to get within close margin of the entropy of the data. The system providing the best compression efficiency based on these improvements is then computed, enabling significant reduction in the average cost required to code the IPMs. The proposed method builds a new coding system with the same complexity as HEVC with 0.41% bit-rates savings in All Intra coding configuration.
Type de document :
Communication dans un congrès
Data Compression Conference (DCC), Apr 2017, Snowbird, United States. Data Compression Conference (DCC), 2017, 2017, Data Compression Conference (DCC). 〈10.1109/DCC.2017.19〉
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https://hal.archives-ouvertes.fr/hal-01565268
Contributeur : Wassim Hamidouche <>
Soumis le : mercredi 19 juillet 2017 - 16:37:03
Dernière modification le : jeudi 20 juillet 2017 - 01:09:52

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Reuzé Kevin, Pierrick Philippe, Wassim Hamidouche, Olivier Déforges. Cluster Adapted Signalling for Intra Prediction in HEVC. Data Compression Conference (DCC), Apr 2017, Snowbird, United States. Data Compression Conference (DCC), 2017, 2017, Data Compression Conference (DCC). 〈10.1109/DCC.2017.19〉. 〈hal-01565268〉

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