scholarly journals An Improved Fast Mode Decision Method for H.264/AVC Intracoding

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Abderrahmane Elyousfi
Keyword(s):  
Rate Increase ◽  
Signal To Noise Ratio ◽  
Mode Selection ◽  
Rate Distortion ◽  
Mode Decision ◽  
Fast Mode ◽  
Gravity Center ◽  
Fast Mode Decision ◽  
Decision Method ◽  
Center Vector

An improved fast and efficient mode decision method for H.264/AVC intracoding is proposed, which is based on the analysis of the gravity center method and more efficient mode selection. In contrast to the fast mode decision method where the intramodes are determined by the gravity center of the block, the mass center vector is computed for the block and the subblocks formed by the proposed subsampling techniques. This method is able to determine all correlation directions of the block that correspond to the intraprediction mode directions of the H.264/AVC. On this basis, only a small number of intraprediction modes are chosen as the best modes for rate-distortion optimization (RDO) calculation. Different video sequences are used to test the performance of the proposed method. Experimental results reveal the significant computational savings achieved with slight peak signal-to-noise ratio (PSNR) degradation and bit-rate increase.

scholarly journals H.264 SVC Complexity Reduction Based on Likelihood Mode Decision

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
L. Balaji ◽  
K. K. Thyagharajan
Keyword(s):  
Computational Complexity ◽  
Video Coding ◽  
Mode Selection ◽  
Mode Decision ◽  
Frame Rate ◽  
Fast Mode ◽  
Bit Rate ◽  
Time Saving ◽  
Decision Algorithm ◽  
Fast Mode Decision

H.264 Advanced Video Coding (AVC) was prolonged to Scalable Video Coding (SVC). SVC executes in different electronics gadgets such as personal computer, HDTV, SDTV, IPTV, and full-HDTV in which user demands various scaling of the same content. The various scaling is resolution, frame rate, quality, heterogeneous networks, bandwidth, and so forth. Scaling consumes more encoding time and computational complexity during mode selection. In this paper, to reduce encoding time and computational complexity, a fast mode decision algorithm based on likelihood mode decision (LMD) is proposed. LMD is evaluated in both temporal and spatial scaling. From the results, we conclude that LMD performs well, when compared to the previous fast mode decision algorithms. The comparison parameters are time, PSNR, and bit rate. LMD achieve time saving of 66.65% with 0.05% detriment in PSNR and 0.17% increment in bit rate compared with the full search method.

An improved hybrid fast mode decision method for H.264/AVC intra coding with local information

2013 ◽  
Vol 72 (1) ◽  
pp. 687-704 ◽  
Author(s):  
Changnian Chen ◽  
Jiazhong Chen ◽  
Tao Xia ◽  
Zengwei Ju ◽  
Lai-Man Po
Keyword(s):  
Local Information ◽  
Mode Decision ◽  
Fast Mode ◽  
Fast Mode Decision ◽  
Intra Coding ◽  
Decision Method

scholarly journals Fast Mode Decision Algorithm Through Inter-View Rate-Distortion Prediction for Multiview Video Coding System

2014 ◽  
Vol 10 (1) ◽  
pp. 594-603 ◽  
Author(s):  
Chia-Hung Yeh ◽  
Ming-Feng Li ◽  
Mei-Juan Chen ◽  
Ming-Chieh Chi ◽  
Xin-Xian Huang ◽  
...  
Keyword(s):  
Video Coding ◽  
Rate Distortion ◽  
Mode Decision ◽  
Fast Mode ◽  
Coding System ◽  
Decision Algorithm ◽  
Fast Mode Decision ◽  
Multiview Video Coding ◽  
Multiview Video

Fast mode decision method based on edge feature for HEVC inter-prediction

2018 ◽  
Vol 12 (5) ◽  
pp. 644-651 ◽  
Author(s):  
Tsung-Han Tsai ◽  
Sheng-Shuan Su ◽  
Ting-Yu Lee
Keyword(s):  
Mode Decision ◽  
Fast Mode ◽  
Inter Prediction ◽  
Fast Mode Decision ◽  
Decision Method ◽  
Edge Feature
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