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Title: An adaptive video sub-sampling technique for the conversion between high and low resolution
Authors: Wong, Hon Wah
Au, Oscar C.
Wong, Wai Chuen
Tourapis, Alexandros
Keywords: Adaptive sub-sampling
Small degradation
Issue Date: 1998
Citation: Proceedings of the 1998 IEEE International Symposium on Circuits and Systems, ISCAS 98, Monterey, CA, 31 May-3 June 1998, vol. 4, p. 281-284
Abstract: 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 stationaly 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.
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