Abstract
The characteristics of \non natural" images, such as predictive error frames used in video compression, present a challenge for traditional compression techniques.
Particularly difficult are small images, such as QCIF, where compression artifacts at low data rates are more noticeable. In this paper, we investigate techniques to
improve the performance of a wavelet-based, rate scalable
video codec at low data rates. These techniques include preprocessing and postprocessing stages to enhance
the quality and reduce the compression artifacts of decoded images.
Note
Proceedings of the 1999 International Workshop on Very Low Bitrate Video Coding, October 29-30, 1999, Kyoto, Japan, pp. 148-151
