Predictive motion estimation for reduced-resolution video from high-resolution compressed video

J.W.C. Wong, O.C. Au, P.H.W. Wong, A. Tourapis
Proceedings 1998 International Conference on Image Processing. ICIP98 (Cat. No.98CB36269)  
To convert a compressed video sequence to a lowerresolution compressed video, one typically needs to decompress the original sequence, down-sample each frame, and recompress it. It involves motion estimation in the reduced sequence which is computational intensive. In this paper, we propose a novel fast algorithm to predict the motion vector of the reduced video by using the original motion information in the compressed bitstream. We achieve a much higher quality than existing algorithms with
more » ... g algorithms with low additional complexity.
doi:10.1109/icip.1998.723424 dblp:conf/icip/WongAWT98 fatcat:7lzi4nqe3rgnrehnc3jpdriga4