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Fast motion estimation algorithm and low-power CMOS motion estimation array LSI for MPEG-2 encoding

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4 Author(s)
Enomoto, T. ; Fac. of Sci. & Eng., Chuo Univ., Tokyo, Japan ; Sasajima, Y. ; Hirobe, A. ; Ohsawa, T.

For fast MPEG-2 encoding, a new motion estimation algorithm, called the “breaking-off-search” algorithm, was developed. The number of computations is drastically reduced by introducing computational constraints in a conventional full-search algorithm. Simulation results show that the “breaking-off-search” algorithm can reduce the computational complexity to about 40% of that for the full-search algorithm with a small loss of less than 0.02 dB in compression performance. This drastic reduction in the amount of block-matching computation can reduce power dissipation of a CMOS motion estimation array by a factor of about 15

Published in:

Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on  (Volume:4 )

Date of Conference:

Jul 1999