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

Authors Wong, Justy W.C.
Au, Oscar C. HKUST affiliated (currently or previously)
Wong, Peter H.W. HKUST affiliated (currently or previously)
Tourapis, A.
Issue Date 1998
Source IEEE International Conference on Image Processing , v. 2, 1998, p. 461-464
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 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 low additional complexity.
ISBN 0-8186-8821-1
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Language English
Format Conference paper
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