"HEVC"

HEVC VMAF-oriented Perceptual Rate Distortion Optimization using CNN

Video coding standards like HEVC and VVC have achieved significant coding performance. However, the RDO module in coding framework ignores the characteristics of human visual system (HVS), which leads to insufficiency for perceptual video coding. …

Weight-based bit allocation scheme for VR videos in HEVC

Since VR videos shown on the head-mounted display (HMD) is omnidirectional, the average distortion of VR videos in all directions shall be calculated in spherical domain. Several metrics have been proposed to calculate the coding loss of VR videos in …

CNN based post-processing to improve HEVC

In this paper, we propose a frame-based dynamic metadata post-processing scheme in HEVC. Video sequence is classified into different categories contains complexity of video content and quality indicator for each frame, an up-to-one byte flag embedded …

Lagrangian method based Rate-Distortion Optimization revisited for dependent video coding

Video encoding is based on the DPCM framework where temporal prediction coding introduces Rate-Distortion (RD) dependence. The RD operating point of the current unit depends on the particular choices of RD points of its reference units. …

Machine learning based VP9-to-HEVC video transcoding

As more and more coding standards are developed for videos with higher resolution and higher frame rates, the conversion between them is in demand. This paper focuses on the development of fast VP9-to-HEVC transcoding algorithm. Since the …

Evaluation of beyond-HEVC entropy coding methods for DCT transform coefficients

Entropy coding, which acts as one of the most important compression tools in video coding standard, had been improved step by step for HEVC. There are also several advanced methods which provide better performance than current solutions of HEVC …

Fast depth decision with enlarged coding block sizes for HEVC intra coding of 4K ultra-HD video

High Efficiency Video Coding (HEVC), the latest video coding standard, achieves significantly better compression performance than the previous coding standards, especially for high resolution (2K, 4K, etc.) video coding. Intra frame coding adopts a …

Texture Direction Based Optimization for Intra Prediction in HEVC

High Efficiency Video Coding (HEVC) is the latest video coding standard that is supported by JCT-VC. In this letter, an encoding algorithm for early termination of Coding Unit (CU) and Prediction Unit (PU) based on the texture direction is proposed …

Paralleling variable block size motion estimation of HEVC on CPU plus GPU platform

The emerging HEVC standard supports up to 12 variable block sizes ranging from 4×8/8×4 to 64×64 to conduct motion estimation (ME) and motion compensation (MC). This feature contributes considerable coding gain compared with 7 variable block sizes in …