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A novel hierarchical-search block matching algorithm and VLSI architecture considering the spatial complexity of the macroblock

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2 Author(s)
Tae-Hee Han ; Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea ; Seung Ho Hwang

We propose a novel hierarchical-search block matching algorithm for motion estimation, which adaptively selects an initial search level based on the spatial complexity of a matching block. It relies on a simple computation of the pixel intensity variation in the current macroblock. We demonstrate its effectiveness in two aspects: the performance and the computational cost. A hardware architecture and a VLSI realization of this algorithm with half-pel motion estimation and motion compensation are also presented. The proposed algorithm greatly reduces the computations required in the existing hierarchical-search block matching algorithms while achieves virtually identical performance to them

Published in:

Consumer Electronics, IEEE Transactions on  (Volume:44 ,  Issue: 2 )

Date of Publication:

May 1998

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