Intra prediction modes signalling 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. To signal these IPMs to the decoder a list of 3 Most Probable Modes (MPM) is created based on the IPMs of the neighbour Intra coded blocks. These MPMs will be transmitted in the bit stream with a reduced number of bits. However, the signalling scheme used in HEVC is not optimal and can be further improved. In this paper a method is proposed to enhance the Intra mode signalling in HEVC. The IPM signaling is first modelled as a tree with forks and leaves representing tests and labels, respectively. The proposed solution introduces new decision tree process by adding new tests and new labels not considered in HEVC. This solution provides a systematic way to find the best signalling scheme for a given set of data. Experimental results show that the proposed solution enables to reduce the BD-Rate by 0.38% in all Intra coding configuration.
Type de document :
Communication dans un congrès
IEEE Picture Coding Consortium (PCS2016), Dec 2017, Nuremberg, Germany
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https://hal.archives-ouvertes.fr/hal-01580609
Contributeur : Wassim Hamidouche <>
Soumis le : vendredi 1 septembre 2017 - 17:57:45
Dernière modification le : mercredi 22 novembre 2017 - 01:20:19

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  • HAL Id : hal-01580609, version 1

Citation

Reuzé Kevin, Pierrick Philippe, Olivier Déforges, Wassim Hamidouche. Intra prediction modes signalling in HEVC. IEEE Picture Coding Consortium (PCS2016), Dec 2017, Nuremberg, Germany. 〈hal-01580609〉

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