Overview of the Low Complexity Enhancement Video Coding (LCEVC) Standard

The Low Complexity Enhancement Video Coding (LCEVC) specification is a recent standard approved by the ISO/IEC JTC 1/SC 29/WG04 (MPEG) Video Coding. The main goal of LCEVC is to provide a standalone toolset for the enhancement of any other existing codec. It works on top of other coding schemes, res...

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Bibliographic Details
Published in:IEEE transactions on circuits and systems for video technology 2022-11, Vol.32 (11), p.7983-7995
Main Authors: Battista, Stefano, Meardi, Guido, Ferrara, Simone, Ciccarelli, Lorenzo, Maurer, Florian, Conti, Massimo, Orcioni, Simone
Format: Article
Language:English
Subjects:
Codec
Coding
Complexity
Complexity theory
Encoding
Entropy
LCEVC
low complexity
MPEG
multi-layer video coding
Multilayers
Quantization (signal)
Transform coding
Transforms
Video coding
Video compression
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Summary:The Low Complexity Enhancement Video Coding (LCEVC) specification is a recent standard approved by the ISO/IEC JTC 1/SC 29/WG04 (MPEG) Video Coding. The main goal of LCEVC is to provide a standalone toolset for the enhancement of any other existing codec. It works on top of other coding schemes, resulting in a multi-layer video coding technology, but unlike existing scalable video codecs, adds enhancement layers completely independent from the base video. The LCEVC technology takes as input the decoded video at lower resolution and adds up to two enhancement sub-layers of residuals encoded with specialized low-complexity coding tools, such as simple temporal prediction, frequency transform, quantization, and entropy encoding. This paper provides an overview of the main features of the LCEVC standard: high compression efficiency, low complexity, minimized requirements of memory and processing power.
ISSN:1051-8215
1558-2205
DOI:10.1109/TCSVT.2022.3182793