Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/2587

Modified predictive motion estimation for reduced-resolution video from high-resolution compressed video

Authors Wong, JWC
Au, OC
Issue Date 1999
Source ISCAS '99: PROCEEDINGS OF THE 1999 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOL 4: IMAGE AND VIDEO PROCESSING, MULTIMEDIA, AND COMMUNICATIONS , 1999, p. 524-527
Summary To convert a compressed video sequence to a lower-resolution 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 [1], predictive motion estimation was proposed to generate the motion vectors of the reduced video by using the original motion information in the compressed bitstream. However, it was described only for the case of 4 to 1 down-conversion. In this paper, we propose a modified predictive motion estimation to work on other down-conversion ratios in lower complexity.
Subjects
ISSN 0271-4310
ISBN 0-7803-5472-9
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Language English
Format Conference paper
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