| Paper: | MP-L1.5 |
| Session: | Distributed Source Coding I: Low Complexity Video Coding |
| Time: | Monday, September 17, 16:10 - 16:30 |
| Presentation: |
Special Session Lecture
|
| Title: |
ANALYZING SYMBOL AND BIT PLANE-BASED LDPC IN DISTRIBUTED VIDEO CODING |
| Authors: |
Ronald Westerlaken; Delft University of Technology | | |
| | Stefan Borchert; Delft University of Technology / Philips Research | | |
| | Rene Klein Gunnewiek; Philips Research Eindhoven | | |
| | Inald Lagendijk; Delft University of Technology | | |
| Abstract: |
Many distributed video coders are implemented using sophisticated error correction codes that use soft information (conditional probabilities) as {\em a priori} knowledge. This a priori information models the dependency behavior between the input data and side-information. In this paper we analyze both a symbol and bit plane-based approach using LDPC codes. We show both theoretically and experimentally that a bit plane-based encoder has the same performance as a symbol-based coder, if an appropriate dependency model is chosen. We argue that due to a significant complexity reduction a bit plane-based coder is preferable over a symbol-based approach. |
