상세정보
학술대회
Multiple Channel Division for Efficient Distributed Video Coding
- 저자
- 박상욱, 이영운, 최진우, 강정원, 김창수, 이상욱
- 발행일
- 200911
- 출처
- International Conference on Image Processing (ICIP) 2009, pp.1401-1404
- 협약과제
- 09MR3700, 유무선 환경의 개방형 IPTV(IPTV 2.0) 기술개발, 황승구
- 초록
- A novel concept of channel division to improve the performance of distributed video coding is proposed in this work. At the decoder, the proposed algorithm partitions each side information frame into multiple regions with different expected distortions. It is shown that the partitioning is equivalent to the division of the virtual noisy channel from the encoder to the decoder into multiple channels. Then, the proposed algorithm analyzes the noise characteristics of those multiple channels, and allocates a limited bit budget to those channels adaptively to improve the rate-distortion performance. Simulation results demonstrate that the proposed algorithm provides up to 5 dB better performance than the conventional DVC algorithms, as well as reduces the decoding complexity significantly. ©2009 IEEE.
- KSP 제안 키워드
- Distributed video coding, Multiple channels, Noise characteristics, Noisy channel, decoding complexity, rate-distortion, side information, simulation results