Deep Video Coding with Dual-Path Generative Adversarial Network

• URL: http://arxiv.org/abs/2111.14474v1
• Date: Mon, 29 Nov 2021 11:39:28 GMT
• Title: Deep Video Coding with Dual-Path Generative Adversarial Network
• Authors: Tiesong Zhao, Weize Feng, Hongji Zeng, Yuzhen Niu, Jiaying Liu
• Abstract summary: This paper proposes an efficient codecs namely dual-path generative adversarial network-based video (DGVC) Our DGVC reduces the average bit-per-pixel (bpp) by 39.39%/54.92% at the same PSNR/MS-SSIM.
• Score: 39.19042551896408
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The deep-learning-based video coding has attracted substantial attention for its great potential to squeeze out the spatial-temporal redundancies of video sequences. This paper proposes an efficient codec namely dual-path generative adversarial network-based video codec (DGVC). First, we propose a dual-path enhancement with generative adversarial network (DPEG) to reconstruct the compressed video details. The DPEG consists of an $\alpha$-path of auto-encoder and convolutional long short-term memory (ConvLSTM), which facilitates the structure feature reconstruction with a large receptive field and multi-frame references, and a $\beta$-path of residual attention blocks, which facilitates the reconstruction of local texture features. Both paths are fused and co-trained by a generative-adversarial process. Second, we reuse the DPEG network in both motion compensation and quality enhancement modules, which are further combined with motion estimation and entropy coding modules in our DGVC framework. Third, we employ a joint training of deep video compression and enhancement to further improve the rate-distortion (RD) performance. Compared with x265 LDP very fast mode, our DGVC reduces the average bit-per-pixel (bpp) by 39.39%/54.92% at the same PSNR/MS-SSIM, which outperforms the state-of-the art deep video codecs by a considerable margin.

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