Title :
A simplified motion estimation using an approximation for the MPEG-2 real-time encoder
Author :
Senda, Yuzo ; Harasaki, Nidenobu ; Yano, Mitsuharu
Author_Institution :
Inf. Technol. Res. Labs., NEC Corp., Kawasaki, Japan
Abstract :
We propose a simplified motion estimation method which provides motion vectors for all types of motion compensation used in MPEG-2. The method is a result of applying a newly introduced approximation to the canonical three-step method described in the MPEG-2 Test Model. It reduces the number of necessary computations in the second and the third steps to less than 1%, and that of data transfers to about 8% of the canonical method. Total complexity of the proposed method is nearly that of the full-pel search motion estimation
Keywords :
approximation theory; code standards; motion compensation; motion estimation; telecommunication standards; video coding; MPEG-2 Test Model; MPEG-2 real-time encoder; approximation; canonical three-step method; complexity; data transfers; full-pel search motion estimation; motion estimation; motion vectors; video coding; Codecs; Information technology; Interpolation; Laboratories; Microwave integrated circuits; Motion compensation; Motion estimation; National electric code; Signal to noise ratio; Testing;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1995. ICASSP-95., 1995 International Conference on
Conference_Location :
Detroit, MI
Print_ISBN :
0-7803-2431-5
DOI :
10.1109/ICASSP.1995.479944
