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Learned Video Codec with Enriched Reconstruction for CLIC P-frame Coding

2020-12-14 12:32:46
David Alexandre, Hsueh-Ming Hang
arXiv_CV
         
Abstract

This paper proposes a learning-based video codec, specifically used for Challenge on Learned Image Compression (CLIC, CVPRWorkshop) 2020 P-frame coding. More specifically, we designed a compressor network with Refine-Net for coding residual signals and motion vectors. Also, for motion estimation, we introduced a hierarchical, attention-based ME-Net. To verify our design, we conducted an extensive ablation study on our modules and different input formats. Our video codec demonstrates its performance by using the perfect reference frame at the decoder side specified by the CLIC P-frame Challenge. The experimental result shows that our proposed codec is very competitive with the Challenge top performers in terms of quality metrics.

Abstract (translated)

URL

https://arxiv.org/abs/2012.07462

PDF

https://arxiv.org/pdf/2012.07462.pdf

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