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Communication Dans Un Congrès Année : 2019

Intra Block-DPCM With Layer Separation of Screen Content in VVC

Patrice Brault
Frédéric Dufaux
Pierre Duhamel
Pierrick Philippe
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Résumé

An intra coding algorithm with layer separation is proposed. This algorithm is designed on top of an adopted tool in VVC, called Block DPCM (BDPCM), and benefits from texture information in a neighborhood to derive intensity levels of background and foreground layers. This information is used to reduce large rate of residual in case of incorrect layer prediction by BDPCM. For this purpose, three inter-layer transition states are defined that are either implicitly or explicitly conveyed to the decoder. Once a transition is signaled, the decoder corrects the prediction value using the derived layer information. Experiments on screen contents show a BD-rate gain of about 10% percent over VVC Test Model (VTM) and 1% over the regular BDPCM, with the cost of computational complexity.
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Dates et versions

hal-02116897 , version 1 (10-01-2020)

Identifiants

Citer

Mohsen Abdoli, Felix Henry, Patrice Brault, Frédéric Dufaux, Pierre Duhamel, et al.. Intra Block-DPCM With Layer Separation of Screen Content in VVC. 26th IEEE International Conference on Image Processing (ICIP 2019), Sep 2019, Taipei, Taiwan. ⟨10.1109/icip.2019.8803389⟩. ⟨hal-02116897⟩
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