Real-time UHD Scalable multi-layer HEVC encoder architecture

Abstract : The High Efficiency Video Coding (HEVC) standard enables meeting new video quality demands such as Ultra High Definition (UHD). Its scalable extension (SHVC) allows encoding simultaneously different versions of a video, organised in layers. Thanks to inter-layer predictions, SHVC provides bit-rate saving over an equivalent HEVC simulcast encoding. Therefore, SHVC seems a promising solution for both broadcast and storage purposes. This paper proposes a multi-layer architecture of a pipeline of software HEVC encoders to perform a real-time UHD spatially scalable SHVC encoder. Inter-layer predictions are furthermore implemented and optimized to provide bit-rate saving with a minimum impact on complexity and latency. The proposed architecture provides a good trade-off between coding gain and coding speed achieving real-time performance for 1080p60 and 1600p30 video sequences in 2 spatial scalability. Moreover, experimental results show more than 1000 speed-up compared to the SHVC reference software model (SHM) and an additional delay of only 14% of the equivalent HEVC single layer coding latency.
Type de document :
Communication dans un congrès
European Signal Processing Conference (EUSIPCO) 2016, Aug 2016, Budapest, Hungary. 2016, 〈http://www.eusipco2016.org〉
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https://hal.archives-ouvertes.fr/hal-01333664
Contributeur : Wassim Hamidouche <>
Soumis le : samedi 18 juin 2016 - 13:16:40
Dernière modification le : mercredi 22 mars 2017 - 09:27:32

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  • HAL Id : hal-01333664, version 1

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Parois Ronan, Wassim Hamidouche, Elie Gabriel Mora, Raulet Mickaël, Olivier Deforges. Real-time UHD Scalable multi-layer HEVC encoder architecture. European Signal Processing Conference (EUSIPCO) 2016, Aug 2016, Budapest, Hungary. 2016, 〈http://www.eusipco2016.org〉. 〈hal-01333664〉

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