Low-Complexity Intra Coding in Versatile Video Coding

Versatile Video Coding (VVC) was finalized in 2020 and offered promising coding efficiency with a bitrate reduction of about 50% for same video quality as High Efficiency Video Coding. However, its high encoding complexity is a heavy burden on real-time applications. In particular, the very high com...

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Vydané v:IEEE transactions on consumer electronics Ročník 68; číslo 2; s. 119 - 126
Hlavní autori: Choi, Kiho, The Van Le, Choi, Yongho, Lee, Jin Young
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: New York IEEE 01.05.2022
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Predmet:
Artificial intelligence
Artificial neural networks
Coding
Complexity
Complexity theory
Decoding
Encoding
High efficiency video coding
Intra coding
low complexity
Reduction
Streaming media
super-resolution
versatile video coding (VVC)
Video compression
ISSN:0098-3063, 1558-4127
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Popis
Shrnutí:Versatile Video Coding (VVC) was finalized in 2020 and offered promising coding efficiency with a bitrate reduction of about 50% for same video quality as High Efficiency Video Coding. However, its high encoding complexity is a heavy burden on real-time applications. In particular, the very high complexity in intra coding can be a big barrier into market entry. This paper presents an efficient low-complexity intra coding scheme, which employs downsampling and upsampling processes. The downsampling is simply performed by reducing the resolution of an original video in both horizontal and vertical directions. In the upsampling, convolutional neural network based super-resolution is used to increase the resolution of the reconstructed video. In addition, this paper thoroughly analyzes the performance and complexity of all intra coding tools in VVC. Experimental results demonstrate that the significantly high reduction of the encoding complexity can be achieved with acceptable video quality.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:0098-3063
1558-4127
DOI:10.1109/TCE.2022.3145397