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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TLDR
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
Citations
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Proceedings ArticleDOI
Motion estimation in ultrasound image using dynamic multi-shape search
TL;DR: A new novel approach, which uses three steps with 21 points separated to 9 points in semi diamond shape, to efficiently estimate the location of atrial-septal-defect, which is one of the oldest block-matching computation algorithms.
Proceedings ArticleDOI
MATLAB/Simulink-based verification environment for motion estimation in H.264/AVC
TL;DR: A methodology for verifying real-time motion estimation based on MATLAB/Simulink co-simulation with an HDL simulator is presented to improve the verification process of motion estimation as a complex digital system.
Journal ArticleDOI
Block Matching Algorithms for the Estimation of Motion in Image Sequences: Analysis.
Proceedings ArticleDOI
Motion Compensation Techniques in Permutation-Based Video Encryption
Caio C. Sabino,Lais S. Andrade,Tsang Ing Ren,George D. C. Cavalcanti,Tsang Ing Jyh,Jan Sijbers +5 more
TL;DR: A motion compensation technique applied in the permutation-based digital video encryption and compression method introduced by Socek et al. is proposed to be applied in both encryption and decryption process.
Journal ArticleDOI
A Variable Size Block Matching Based Descriptor for Human Action Recognition
Fabio Luiz Marinho,Helena de Almeida Maia,Virgínia Fernandes Mota,Marcelo Bernardes Vieira,Arnaldo de Albuquerque Araújo +4 more
TL;DR: An ongoing research which intends to integrate the Block Matching technique into the Human Action Recognition field with a promising approach for human action recognition since it is a simple method with low computational cost which achieves comparable results with state-of-the-art techniques.
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.