Loading...

A high video quality Multiple Description Coding scheme for lossy channels

Kazemi, M ; Sharif University of Technology | 2011

910 Viewed
  1. Type of Document: Article
  2. DOI: 10.1109/ICME.2011.6012009
  3. Publisher: 2011
  4. Abstract:
  5. Multiple Description Coding (MDC) is a technique where multiple streams from a source are generated, each individually decodable and mutually refinable. In this paper, a new Mixed Layer MDC (MLMDC) scheme is presented which achieves a higher side quality compared to conventional MDCs. The improved side performance leads to higher average video quality at the receiver in lossy networks. For each DCT coefficient, we generate two coefficients: Base Coefficient (BC) and Enhancement Coefficient (EC) which are combined together. When all descriptions are available, they are decomposed and decoded to achieve high quality video. When one description is not available, we use estimation to extract as much of the BC as possible from the received description. The algorithm is implemented in JM16.0 and its performance for two-description and four-description coding is verified by experiments
  6. Keywords:
  7. Redundancy-rate-distortion ; Video coding ; Video packet loss mitigation ; Video transmission ; DCT coefficients ; Enhancement coefficients ; High quality video ; Lossy channel ; Lossy networks ; Mixed layer ; Multiple description coding ; Multiple streams ; Video packets ; Video quality ; Video transmissions ; Channel coding ; Image coding ; Image communication systems ; Computer hardware description languages
  8. Source: Proceedings - IEEE International Conference on Multimedia and Expo, 11 July 2011 through 15 July 2011, Barcelona ; 2011 ; 19457871 (ISSN) ; 9781612843490 (ISBN)
  9. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6012009