Transformed domain block size and intra mode decision for advanced video coding

2010 ◽  
Author(s):  
Yung-Chiang Wei ◽  
Chao-Hsuing Tseng
Keyword(s):  
Video Coding ◽  
Block Size ◽  
Mode Decision ◽  
Intra Mode Decision ◽  
Advanced Video Coding ◽  
Domain Block

scholarly journals Fast Depth Intra Mode Decision Based on Mode Analysis in 3D Video Coding

Electronics ◽  
2019 ◽  
Vol 8 (4) ◽  
pp. 430 ◽  
Author(s):  
Jin Young Lee
Keyword(s):  
Video Coding ◽  
High Performance ◽  
Depth Map ◽  
3D Video ◽  
Mode Decision ◽  
Mode Analysis ◽  
Multiview Video ◽  
3D Video Coding ◽  
Depth Coding ◽  
Intra Mode Decision

Multiview video plus depth (MVD), which consists of a texture image and its associated depth map, has been introduced as a 3D video format, and 3D video coding, such as 3D-HEVC, was developed to efficiently compress this MVD data. However, this requires high encoding complexity because of the additional depth coding. In particular, intra coding using various prediction modes is very complicated. To reduce the complexity, we propose a fast depth intra mode decision method based on mode analysis. The proposed method adaptively reduces the number of original candidate modes in a mode decision process. Experimental results show that the proposed method achieves high performance in terms of the complexity reduction.

Fast Intra Mode Decision Algorithm Based on Mode Correlation in SVC

2013 ◽  
Vol 373-375 ◽  
pp. 525-529
Author(s):  
Luna Jing ◽  
Ning Li ◽  
Li Ni Ma
Keyword(s):  
Video Coding ◽  
Scalable Video Coding ◽  
Mode Decision ◽  
Base Layer ◽  
Scalable Video ◽  
Enhancement Layer ◽  
Decision Algorithm ◽  
Intra Mode Decision ◽  
Rate Loss ◽  
Fast Intra Mode Decision

Intra4×4 mode decision has correlation between enhancement layer and base layer in scalable video coding (SVC). In this paper, a new intra mode decision algorithm is proposed based on this correlation and the proximity of prediction directions of nine Intra4×4 prediction modes. This method is used in enhancement layer to decrease the mode numbers in enhancement layer. Experiments show that the proposed algorithm can save 27.52% encoding time on average with negligible PSNR change and small bit-rate loss.

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