DocumentCode
290231
Title
A new technique for block-based motion compensation
Author
Kozu, Shinichi ; Kulkarni, Sanjeev
Author_Institution
Semiconductor Appl. Eng. Div., NEC Corp., Kawasaki, Japan
Volume
v
fYear
1994
fDate
19-22 Apr 1994
Abstract
We present a new algorithm to find motion vectors of B frames (bidirectional frames) in the MPEG encoding scheme which significantly reduces the computations required compared with the conventional method. We interpolate the motion vectors for each macro block in the B frame using the motion vector of the next P frame (predictive frame) and do a small search to final a better matching. The number of computations is reduced by factor of 5~20, but the matching stays comparable with that of exhaustive search
Keywords
image coding; image matching; image sequences; interpolation; motion estimation; MPEG; bidirectional frames; block-based motion compensation; encoding; image matching; motion vector interpolation; predictive frame; Decoding; Encoding; Image sequences; Interpolation; Motion compensation; Motion estimation; Motion measurement; National electric code; Tracking;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on
Conference_Location
Adelaide, SA
ISSN
1520-6149
Print_ISBN
0-7803-1775-0
Type
conf
DOI
10.1109/ICASSP.1994.389493
Filename
389493
Link To Document