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http://dx.doi.org/10.6109/jkiice.2016.20.8.1531

Fast Motion Estimation Algorithm via Minimum Error for Each Step  

Kim, Jong Nam (Department of IT Convergence and Application Engineering, Pukyong National University)
Abstract
In this paper, we propose a fast motion estimation algorithm which is important in performance of video encoding. Even though so many fast algorithms for motion estimation have been published due to its tremendous computational amount of for full search algorithm, efforts for reducing computations in motion estimation still remain. In the paper, we propose an algorithm that reduces unnecessary computations only, while keeping prediction quality the same as that of the full search. The proposed algorithm does not calculate block matching error for each candidate at once to find motion vectors but divides the calculation procedure into several steps and calculates partial sum of block errors. By doing that, we can estimate the minimum error point early and get the enhancement of calculation speed by reducing unnecessary computations. The proposed algorithm uses smaller computations than conventional fast search algorithms with the same prediction quality as full search.
Keywords
Motion estimation; Full search; Search rang; Matching error; Partial sum of block error;
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1 J. Kim and T. Choi, "Adaptive matching scan algorithm based on gradient magnitude for fast full search in motion estimation," IEEE Transactions on Consumer Electronics, vol. 45, no. 3, pp. 762-772, Aug. 1999.   DOI
2 V. Rao, P. Muralidhar, and R. Rao "Adaptive diamond step search motion estimation algorithm for H.264/AVC," in Proceeding of IEEE ICACCCT, pp.1389-1392, 2014.
3 X. Li, R. Wang, W. Wang, Z. Wang, and S. Dong, "Fast motion estimation methods for HEVC," in Proceeding of IEEE ISBMSB, pp.1-4, 2014.
4 N. Hamid and H. Sulaiman, "Adaptive diamond orthogonal search algorithm for motion estimation," in Proceeding of IEEE I4CT, pp.498-501, 2015.
5 X. Li, R. Wang, X. Cui, and W.Wang, "Context-adaptive fast motion estimation of HEVC," in Proceeding of IEEE ISCAS, pp. 2784-2787, 2015.
6 N. Alnajdawi and S. Tedmori, "Employing a novel cross-diamond search in a modified hierarchical search motion estimation algorithm for video compression," Elsevier Information Sciences, vol. 268, pp. 425-435, June 2014.   DOI
7 T.G. Ahn, Y.H. Moon, and J.H. Kim, "Fast full-search motion estimation based on multilevel successive elimination algorithm," IEEE Transactions on Circuits and System for Video Technology, vol. 14, no. 11, pp. 1265-1269, Oct. 2004.   DOI
8 J. Kim, S. Byun, Y. Kim, and B. Ahn, "Fast full search motion estimation algorithm using early detection of impossible candidate vectors," IEEE Transactions on Signal Processing, vol. 50, no. 9, pp. 2355-2365, Nov. 2002.   DOI
9 HHI, H.264/AVC reference software [Internet]. Available: http://iphome.hhi.de/ suehring/tml/download/old_jm/
10 S. Jin and H. Lee, "Fast partial distortion elimination algorithm based on Hadamard probability model," IEE Electronics Letters, vol. 44, no. 1, pp. 17-19, Jan. 2008.   DOI