Multi-view Video Coding Using Illumination Change-Adaptive Motion Estimation and 2-D Direct Mode

2005 ◽  
pp. 396-407
Author(s):  
Yung-Lyul Lee ◽  
Yung-Ki Lee ◽  
Dae-Yeon Kim
Keyword(s):  
Motion Estimation ◽  
Video Coding ◽  
Illumination Change ◽  
Adaptive Motion

A low energy adaptive motion estimation hardware for H.264 multiview video coding

2013 ◽  
Vol 15 (1) ◽  
pp. 3-12 ◽  
Author(s):  
Yusuf Aksehir ◽  
Kamil Erdayandi ◽  
Tevfik Zafer Ozcan ◽  
Ilker Hamzaoglu
Keyword(s):  
Motion Estimation ◽  
Video Coding ◽  
Low Energy ◽  
Multiview Video Coding ◽  
Multiview Video ◽  
Adaptive Motion

Fast subpel motion estimation for H.264/advanced video coding with an adaptive motion vector accuracy decision

2012 ◽  
Vol 51 (11) ◽  
pp. 117001 ◽  
Author(s):  
Hoyoung Lee ◽  
Bongsoo Jung ◽  
Jooyoung Jung ◽  
Byeungwoo Jeon
Keyword(s):  
Motion Estimation ◽  
Video Coding ◽  
Motion Vector ◽  
Adaptive Motion ◽  
Advanced Video Coding

scholarly journals An Adaptive Motion Estimation Scheme for Video Coding

2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
Pengyu Liu ◽  
Yuan Gao ◽  
Kebin Jia
Keyword(s):  
Motion Estimation ◽  
Video Coding ◽  
Motion Vector ◽  
Rate Distortion ◽  
Block Matching ◽  
Search Pattern ◽  
Fast Motion Estimation ◽  
Search Patterns ◽  
Adaptive Motion ◽  
Estimation Scheme

The unsymmetrical-cross multihexagon-grid search (UMHexagonS) is one of the best fast Motion Estimation (ME) algorithms in video encoding software. It achieves an excellent coding performance by using hybrid block matching search pattern and multiple initial search point predictors at the cost of the computational complexity of ME increased. Reducing time consuming of ME is one of the key factors to improve video coding efficiency. In this paper, we propose an adaptive motion estimation scheme to further reduce the calculation redundancy of UMHexagonS. Firstly, new motion estimation search patterns have been designed according to the statistical results of motion vector (MV) distribution information. Then, design a MV distribution prediction method, including prediction of the size of MV and the direction of MV. At last, according to the MV distribution prediction results, achieve self-adaptive subregional searching by the new estimation search patterns. Experimental results show that more than 50% of total search points are dramatically reduced compared to the UMHexagonS algorithm in JM 18.4 of H.264/AVC. As a result, the proposed algorithm scheme can save the ME time up to 20.86% while the rate-distortion performance is not compromised.

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