| Paper: | WP-P5.8 |
| Session: | Image and Video Modeling III / Distributed Coding |
| Time: | Wednesday, September 19, 14:30 - 17:10 |
| Presentation: |
Poster
|
| Title: |
MOTION-BASED SIDE-INFORMATION GENERATION FOR A SCALABLE WYNER-ZIV VIDEO CODER |
| Authors: |
Bruno Macchiavello; Universidade de Brasilia | | |
| | Ricardo L. de Queiroz; Universidade de Brasilia | | |
| | Debargha Mukherjee; Hewlett Packard Laboratories | | |
| Abstract: |
A motion-based side-information generation scheme with semi super-resolution for a scalable Wyner-Ziv coder framework is introduced. It is known that the performance of any Wyner-Ziv coder is heavily dependent on the efficiency of the side-information generation. We propose an iterative block based scheme to generate a semi super-resolution frame using the past and future reference frames which should be coded at full-resolution. To enable this side-information generation the framework should allow for low encoding complexity, reducing the spatial resolution only in the non-reference frames. The enhancement layer is produced using a residual frame of the reduced resolution encoded frame. The decoder first decodes the low resolution base layer and iteratively generates the side-information, along with channel decoding, to obtain a higher quality version of the decoded frame. Results of the implementation of the framework using the motion-based side-information in the H.263+ and H.264 standards are presented. |
