Multi-terminal video coding

Research output: Contribution to conferencePaper

9 Citations (Scopus)

Abstract

Following recent works on the rate region of the quadratic Gaussian two-terminal source coding problem and limit-approaching code designs, this paper examines multiterminal source coding of two correlated video sequences to save the sum rate over independent coding. Specifically, the first video sequence is coded by H.264 and used at the joint decoder to facilitate Wyner-Ziv coding of the second video sequence. The first I-frame of the right sequence is successively coded by H.264 and Slepian-Wolf coding. An efficient stereo matching algorithm based on loopy belief propagation is then adopted at the decoder to produce pixel-level disparity maps between the corresponding frames of the two decoded video sequences on the fly. Based on the disparity maps, side information for both motion vectors and motion-compensated residual frames of the second sequence are generated at the decoder before Wyner-Ziv encoding. Experimental results on stereo video sequences using H.264, LDPC codes for Slepian-Wolf coding of the motion vectors and scalar quantization in conjunction with LDPC codes for Wyner-Ziv coding of the residual coefficients show savings in terms of the sum-rate when compared to separate H.264 coding at the same video quality.
Original languageEnglish
PagesIII-25 - III-28
Number of pages4
DOIs
Publication statusPublished - 2007
Event2007 14th IEEE International Conference on Image Processing - Hyatt Regency San Antonio, San Antonio, United States
Duration: 16 Sep 200719 Sep 2007

Conference

Conference2007 14th IEEE International Conference on Image Processing
Abbreviated titleICIP 2007
CountryUnited States
CitySan Antonio
Period16/09/0719/09/07

Keywords

  • video coding
  • image processing

Cite this

Stankovic, V. (2007). Multi-terminal video coding. III-25 - III-28 . Paper presented at 2007 14th IEEE International Conference on Image Processing , San Antonio, United States. https://doi.org/10.1109/ICIP.2007.4379237