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arXiv · 2104.09103

Conditional Coding and Variable Bitrate for Practical Learned Video Coding

Théo Ladune·Pierrick Philippe·Wassim Hamidouche·Lu Zhang·Olivier Déforges
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Abstract

This paper introduces a practical learned video codec. Conditional coding and quantization gain vectors are used to provide flexibility to a single encoder/decoder pair, which is able to compress video sequences at a variable bitrate. The flexibility is leveraged at test time by choosing the rate and GOP structure to optimize a rate-distortion cost. Using the CLIC21 video test conditions, the proposed approach shows performance on par with HEVC.

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Théo Ladune, Pierrick Philippe, Wassim Hamidouche, Lu Zhang, Olivier Déforges. 2021-04-19. Conditional Coding and Variable Bitrate for Practical Learned Video Coding. https://arxiv.org/abs/2104.09103

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