scholarly journals Decision Tree Models and Early Splitting Termination in Screen Content Extension of High Efficiency Video Coding

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 143437-143452
Author(s):  
Emad Badry ◽  
Koji Inoue ◽  
Mohammed Sharaf Sayed
Keyword(s):  
Decision Tree ◽  
Video Coding ◽  
High Efficiency ◽  
High Efficiency Video Coding ◽  
Screen Content ◽  
Tree Models

scholarly journals Overview of HEVC extensions on screen content coding

2015 ◽  
Vol 4 ◽  
Author(s):  
Shan Liu ◽  
Xiaozhong Xu ◽  
Shawmin Lei ◽  
Kevin Jou
Keyword(s):  
Video Coding ◽  
High Efficiency ◽  
Expert Group ◽  
High Efficiency Video Coding ◽  
Screen Content ◽  
Draft Standard ◽  
Adaptive Motion ◽  
Screen Sharing ◽  
Screen Content Coding ◽  
Motion Picture Expert Group

Technologies for coding non-camera-captured video contents have received great interests lately due to the rapid growth of application areas such as wireless display and screen sharing, etc. In response to the market demands, the ITU-T Video Coding Expert Group and ISO/IEC Motion Picture Expert Group have jointly launched a new standardization project, i.e. the High-Efficiency Video Coding (HEVC) extensions on screen content coding (HEVC SCC). Several new video coding tools, including intra block copy, palette coding, adaptive color transform, and adaptive motion resolution, have been developed and adopted into HEVC SCC draft standard. This paper reviews the main features and coding technologies in the current HEVC SCC draft standard, with discussions about the performance and complexity aspects compared with prior arts.

scholarly journals Decision tree accelerated CTU partition algorithm for intra prediction in versatile video coding

PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0258890
Author(s):  
Guowei Teng ◽  
Danqi Xiong ◽  
Ran Ma ◽  
Ping An
Keyword(s):  
Decision Tree ◽  
Video Coding ◽  
High Efficiency ◽  
Intra Prediction ◽  
Image Features ◽  
Test Model ◽  
High Efficiency Video Coding ◽  
Partition Structure ◽  
Partition Process ◽  
Coding Unit

Versatile video coding (VVC) achieves enormous improvement over the advanced high efficiency video coding (HEVC) standard due to the adoption of the quadtree with nested multi-type tree (QTMT) partition structure and other coding tools. However, the computational complexity increases dramatically as well. To tackle this problem, we propose a decision tree accelerated coding tree units (CTU) partition algorithm for intra prediction in VVC. Firstly, specially designated image features are extracted to characterize the coding unit (CU) complexity. Then, the trained decision tree is employed to predict the partition results. Finally, based on our newly designed intra prediction framework, the partition process is early terminated or redundant partition modes are screened out. The experimental results show that the proposed algorithm could achieve around 52% encoding time reduction for various test video sequences on average with only 1.75% Bjontegaard delta bit rate increase compared with the reference test model VTM9.0 of VVC.

High-Performance Hardware Interpolation Architecture for High Efficiency Video Coding Decoder

2016 ◽  
Vol 11 (9) ◽  
pp. 764
Author(s):  
Lella Aicha Ayadi ◽  
Nihel Neji ◽  
Hassen Loukil ◽  
Mouhamed Ali Ben Ayed ◽  
Nouri Masmoudi
Keyword(s):  
Video Coding ◽  
High Performance ◽  
High Efficiency ◽  
High Efficiency Video Coding
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