Postprint version. Published in Proceedings from the International Conference on Image Processing: Santa Barbara, CA, Volume 2, October 26, 1997, pages 53-56.
NOTE: At the time of publication, the author Xiaozheng Zhang was not yet affiliated with Cal Poly.
The definitive version is available at http://dx.doi.org/10.1109/ICIP.1997.638671.
Motion-compensating long-term memory prediction extends the spatial displacement utilized in block-based hybrid video coding by a variable time delay permitting the use of more frames than the previously decoded one for motion compensation. The long-term memory covers the decoded frames of some seconds at encoder and decoder. We investigate the influence of memory size in our motion compensation scheme and analyze the trade-off between the bit-rates spent for motion compensated prediction and residual coding. Simulation results are obtained by integrating long-term memory prediction into an H.263 codec. PSNR improvements up to 2 dB for the Foreman sequence and 1.5 dB for the Mother-Daughter sequence are demonstrated in comparison to the TMN-2.0 H.263 coder.
Electrical and Computer Engineering
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