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author:

Liu, W. (Liu, W..) [1] | Gao, W. (Gao, W..) [2] | Li, G. (Li, G..) [3] | Ma, S. (Ma, S..) [4] | Zhao, T. (Zhao, T..) [5] (Scholars:赵铁松) | Yuan, H. (Yuan, H..) [6]

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Scopus

Abstract:

Making full use of spatial-temporal information is the key factor for removing compressed video artifacts. Recently, many deep learning-based compression artifact reduction methods have emerged. Among them, a series of methods based on deformable convolution have shown excellent capabilities in spatio-temporal feature extraction. However, local deformable offset prediction and pixel-wise inter-frame feature alignment in the unidirectional form limit the full utilization of temporal features in the existing method. Additionally, compressed video shows inconsistent degrees of distortion on different frequency components, and their restoration difficulty is also nonuniform. For the above problems presented by existing methods, we propose an enlarged motion-aware and frequency-aware network (EMAFA) to further extract spatio-temporal information and enhance information of different frequency components. To perceive different degrees of motion artifacts between compressed frames as accurately as possible, we design a bidirectional dense propagation pattern with pixel-wise and patch-wise deformable convolution (PIPA) module in the feature domain. In addition, we propose a multi-scale atrous deformable alignment (MSADA) module to enrich spatio-temporal features in image domain. Moreover, we design a multi-direction frequency enhancement (MDFE) module with multiple direction convolution to enhance the features of different frequency components. The experimental results show that the proposed method performs better than the state-of-the-art methods in both objective evaluation and visual perception experience. Supplementary experiments for Internet Streamed Video with hybrid-distortion demonstrate that our method also exhibits considerable generalizability for quality enhancement. IEEE

Keyword:

Circuits and systems compressed video artifact reduction Convolution Feature extraction Quantization (signal) Task analysis video compression Video compression video quality enhancement Video recording

Community:

  • [ 1 ] [Liu W.]School of Electronic and Computer Engineering, Shenzhen Graduate School, Peking University, Shenzhen, China
  • [ 2 ] [Gao W.]School of Electronic and Computer Engineering, Shenzhen Graduate School, Peking University, Shenzhen, China
  • [ 3 ] [Li G.]School of Electronic and Computer Engineering, Shenzhen Graduate School, Peking University, Shenzhen, China
  • [ 4 ] [Ma S.]School of Computer Science, National Engineering Research Center of Visual Technology, Peking University, Beijing, China
  • [ 5 ] [Zhao T.]Fujian Key Laboratory for Intelligent Processing and Wireless Transmission of Media Information, Fuzhou University, Fuzhou, Fujian, China
  • [ 6 ] [Yuan H.]School of Control Science and Engineering, Shandong University, Jinan, China

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IEEE Transactions on Circuits and Systems for Video Technology

ISSN: 1051-8215

Year: 2024

Issue: 10

Volume: 34

Page: 1-1

8 . 3 0 0

JCR@2023

Cited Count:

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ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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