Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/2582

An adaptive video sub-sampling technique for the conversion between high and low resolution

Authors Wong, PHW
Au, OC
Wong, JWC
Tourapis, A
Issue Date 1998
Source ISCAS '98 - PROCEEDINGS OF THE 1998 INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-6 , 1998, p. C281-C284
Summary An adaptive sub-sampling technique is proposed for the conversion of high-resolution video to low-resolution video, which will eventually be converted back to high resolution. This technique can preserve high spatial frequency information by exploiting the temporal correlation of stationary regions without any extra storage or transmission bandwidth. Coding complexity can be reduced by a factor of four if the video is to be eventually displayed in high-resolution, with small degradation in visual quality and peak-signal-to-noise ratio. Most of the edge information can be preserved when the low-resolution video is converted back to high-resolution video and significant improvement can be obtained compared with conventional methods.
Subjects
ISSN 0271-4310
ISBN 0-7803-4455-3
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Language English
Format Conference paper
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