Half-Pixel Accuracy Motion Estimation Algorithm in the Transform Domain for H.264 


Vol. 33,  No. 11, pp. 917-924, Nov.  2008


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  Abstract

Motion estimation and compensation in the spatial domain check the searching area of specified size in the previous frame and search block to minimize the difference with current block. When we check the searching area, it consumes the most encoding times due to increasing the complexity. We can solve this fault by means of motion estimation using shifting matrix in the transform domain instead of the spatial domain. We derive so the existed shifting matrix to a new recursion equation that we decrease more computations. We modify simply vertical shifting matrix and horizontal shifting matrix in the transform domain for motion estimation of half-pixel accuracy. So, we solve increasing computation due to bilinear interpolation in the spatial domain. Simulation results prove that motion estimation by the proposed algorithm in DCT-based transform domain provides higher PSNR using fewer bits than results in the spatial domain.

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  Cite this article

[IEEE Style]

M. Kang, J. Heo, C. Ryu, "Half-Pixel Accuracy Motion Estimation Algorithm in the Transform Domain for H.264," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 11, pp. 917-924, 2008. DOI: .

[ACM Style]

Min-Jung Kang, Jae-Seong Heo, and Chul Ryu. 2008. Half-Pixel Accuracy Motion Estimation Algorithm in the Transform Domain for H.264. The Journal of Korean Institute of Communications and Information Sciences, 33, 11, (2008), 917-924. DOI: .

[KICS Style]

Min-Jung Kang, Jae-Seong Heo, Chul Ryu, "Half-Pixel Accuracy Motion Estimation Algorithm in the Transform Domain for H.264," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 11, pp. 917-924, 11. 2008.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880