Journal ArticleDOI
A novel four-step search algorithm for fast block motion estimation
Lai-Man Po,Wing-Chung Ma +1 more
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Simulation results show that the proposed 4SS performs better than the well-known three- step search and has similar performance to the new three-step search (N3SS) in terms of motion compensation errors.Abstract:
Based on the real world image sequence's characteristic of center-biased motion vector distribution, a new four-step search (4SS) algorithm with center-biased checking point pattern for fast block motion estimation is proposed in this paper. A halfway-stop technique is employed in the new algorithm with searching steps of 2 to 4 and the total number of checking points is varied from 17 to 27. Simulation results show that the proposed 4SS performs better than the well-known three-step search and has similar performance to the new three-step search (N3SS) in terms of motion compensation errors. In addition, the 4SS also reduces the worst-case computational requirement from 33 to 27 search points and the average computational requirement from 21 to 19 search points, as compared with N3SS.read more
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Patent
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Analysis and complexity reduction of multiple reference frames motion estimation in H.264/AVC
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Proceedings ArticleDOI
A new diamond search algorithm for fast block matching motion estimation
Shan Zhu,Kai-Kuang Ma +1 more
TL;DR: Simulation results demonstrate that the proposed diamond search (DS) algorithm greatly outperforms the well-known three-step search (TSS) algorithm and shows its superiority.
Journal ArticleDOI
Fast Motion Estimation Based on Content Property for Low-Complexity H.265/HEVC Encoder
TL;DR: A fast motion estimation (ME) method to reduce the encoding complexity of the H.265/HEVC encoder based on the best motion vector selection correlation among the different size prediction modes, which achieves an average of 20% ME time saving as compared with the original HM-TZSearch.
Journal ArticleDOI
Survey on Block Matching Motion Estimation Algorithms and Architectures with New Results
TL;DR: The main idea is quick checking of the entire search range with simplified matching criterion to globally eliminate impossible candidates, followed by finer selection among potential best matched candidates.
References
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Journal ArticleDOI
Displacement Measurement and Its Application in Interframe Image Coding
TL;DR: The motion compensation is applied for analysis and design of a hybrid coding scheme and the results show a factor of two gain at low bit rates.
Journal ArticleDOI
A new three-step search algorithm for block motion estimation
Reoxiang Li,Bing Zeng,M.L. Liou +2 more
TL;DR: Simulation results show that, as compared to TSS, NTSS is much more robust, produces smaller motion compensation errors, and has a very compatible computational complexity.
Journal ArticleDOI
New fast algorithms for the estimation of block motion vectors
Bede Liu,Andre Zaccarin +1 more
TL;DR: Two algorithms for block motion estimation that produce performance similar to that of exhaustive search but with computation reduced by a factor of 8 or 16 are presented.
Journal ArticleDOI
Predictive Coding Based on Efficient Motion Estimation
R. Srinivasan,K. R. Rao +1 more
TL;DR: A computationally simpler and effective method is proposed for estimating motion in a video sequence based on conjugate directions and another simpler technique called the one-at-a-time search, adopted as the basis for further research.