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2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Zhi Liu ◽  
Mengjun Dong ◽  
Xiao Han Guan ◽  
Mengmeng Zhang ◽  
Ruoyu Wang

AbstractIn lately published video coding standard Versatile Video Coding (VVC/ H.266), the intra sub-partitions (ISP) coding mode is proposed. It is efficient for frames with rich texture, but less efficient for frames that are very flat or constant. In this paper, by comparing and analyzing the rate distortion cost (RD-cost) of coding unit (CU) with different texture features for using and not using ISP(No-ISP) coding mode, it is observed that CUs with simple texture can skip ISP coding mode. Based on this observation, a fast ISP coding mode optimization algorithm based on CU texture complexity is proposed, which aims to determine whether a CU needs to use ISP coding mode in advance by calculating CU texture complexity, so as to reduce the computation complexity of ISP. The experimental results show that under All Intra (AI) configuration, the coding time can be reduced by 7%, while the BD rate only increase by 0.09%.


2020 ◽  
Author(s):  
Zhi Liu ◽  
Mengjun Dong ◽  
XiaoHan Guan ◽  
Mengmeng Zhang ◽  
Ruoyu Wang

Abstract In lately published video coding standard Versatile Video Coding (VVC/ H.266), the intra sub-partitions (ISP) coding mode is proposed. It is efficient for frames with rich texture, but less efficient for frames that are very flat or constant. In this paper, by comparing and analyzing the rate distortion cost (RD-cost) of coding unit (CU) with different texture features for using and not using ISP(No-ISP) coding mode, it is found that CUs with simple texture can get better coding performance in No-ISP coding mode. Based on this observations, a fast ISP coding mode optimization algorithm based on CU texture complexity is proposed, which aims to determine whether CU needs to use ISP coding mode in advance by calculating CU texture complexity, so as to reduce the computation complexity of ISP. The experimental results show that under All Intra (AI) configuration, the coding time can be reduced by 7%, while the BD-rate only increase by 0.09%.


2020 ◽  
Vol 30 (3) ◽  
pp. 795-809 ◽  
Author(s):  
Bo Huang ◽  
Zhifeng Chen ◽  
Qi Cai ◽  
Mingkui Zheng ◽  
Dapeng Oliver Wu

Author(s):  
Santiago De-Luxan-Hernandez ◽  
Valeri George ◽  
Jackie Ma ◽  
Tung Nguyen ◽  
Heiko Schwarz ◽  
...  
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2019 ◽  
Vol 13 (1) ◽  
pp. 34-43 ◽  
Author(s):  
Hongwei Lin ◽  
Xiaohai He ◽  
Linbo Qing ◽  
Shan Su ◽  
Shuhua Xiong

2018 ◽  
Vol 68 ◽  
pp. 249-257 ◽  
Author(s):  
Yu Lu ◽  
Huaping Liu ◽  
Yameng Lin ◽  
Liquan Shen ◽  
Haibing Yin

ETRI Journal ◽  
2017 ◽  
Vol 39 (3) ◽  
pp. 310-318 ◽  
Author(s):  
Seungkwon Beack ◽  
Jongmo Seong ◽  
Misuk Lee ◽  
Taejin Lee

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