 |
Technical Program
Paper Detail
| Paper: | MP-L2.4 |
| Session: | Distributed Image and Video Coding - II |
| Time: | Monday, October 9, 15:20 - 15:40 |
| Presentation: |
Lecture
|
| Title: |
A SEQUENTIAL MOTION COMPENSATION REFINEMENT TECHNIQUE FOR DISTRIBUTED VIDEO CODING OF WYNER-ZIV FRAMES |
| Authors: |
A. B. B. Adikari; Brunel University | | | | | W. A. C. Fernando; Brunel University | | | | | W. A. R. J. Weerakkody; Brunel University | | | | | H. K. Arachchi; Brunel University | | |
| Abstract: |
We propose a novel side information refinement technique for Wyner-Ziv video frames in DVC. When a bit plane is decoded, it is used to replace the corresponding bit plane in the side information and used for motion estimation and compensation to up date the side information. Then the information for the next bit plane is extracted from the updated side information and is sent to the turbo decoder as in a conventional DVC decoder. This process is repeated until all bit planes are extracted. This technique can be employed with almost all the side information generation techniques from simplest conventional pixel interpolation to advanced techniques such as bi-directional motion estimation and spatial motion smoothing (BiMESS) [8]. Simulation results show that over 3dB PSNR gain can be obtained with the proposed algorithm over the BiMESS smoothing algorithm at the same bit rate. |
|
