QTMT partitioning structure in VVC : Overview and Analysis

The latest standard Versatile Video Coding (VVC) adopts new coding tools namely Multiple Transform Selection (MTS), Low-Frequency Non-Separable Transform (LFNST), Multiple Reference Line (MRL) and Quadtree with Nested Multi-Type Tree (QTMT). These improvements enhance the VVC coding efficiency compa...

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Bibliographic Details
Main Authors: Abdallah, Bouthaina, Belghith, Fatma, Ali Ben Ayed, Mohamed, Masmoudi, Nouri
Format: Conference Proceeding
Language:English
Subjects:
computational complexity
Encoding
Focusing
partition sizes
Quadtree with Nested Multi-Type Tree (QTMT)
Software
Software algorithms
statistical analyses
Statistical analysis
Transforms
Versatile Video Coding (VVC)
Video sequences
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Summary:The latest standard Versatile Video Coding (VVC) adopts new coding tools namely Multiple Transform Selection (MTS), Low-Frequency Non-Separable Transform (LFNST), Multiple Reference Line (MRL) and Quadtree with Nested Multi-Type Tree (QTMT). These improvements enhance the VVC coding efficiency compared to its predecessor High Efficiency Video Coding (HEVC) at the cost of computational complexity increasing. The QTMT technique consumes an important coding time in order to determine the decision tree of each Coding Tree Unit (CTU). In this paper, an overview and statistical analyses of the QTMT Partitioning Structure under the reference software VTM 16.2 are presented focusing on the different parameters determining the Coding Unit (CU) partition sizes.
ISSN:2573-539X
DOI:10.1109/STA56120.2022.10018992