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Flexible-Rate Learned Hierarchical Bi-Directional Video Compression With Motion Refinement and Frame-Level Bit Allocation. (arXiv:2206.13613v1 [eess.IV])
cs.CV updates on arXiv.org arxiv.org
This paper presents improvements and novel additions to our recent work on
end-to-end optimized hierarchical bi-directional video compression to further
advance the state-of-the-art in learned video compression. As an improvement,
we combine motion estimation and prediction modules and compress refined
residual motion vectors for improved rate-distortion performance. As novel
addition, we adapted the gain unit proposed for image compression to
flexible-rate video compression in two ways: first, the gain unit enables a
single encoder model to operate at multiple rate-distortion …
arxiv bi compression hierarchical rate video video compression