Three-terminal video coding

Following recent works on the sum-rate of quadratic Gaussian multi-terminal coding of symmetric sources, this paper presents a practical three-terminal video coding scheme that saves the sum-rate over independent coding of three correlated video sequences. The first video sequence is coded by H.264/AVC, while the other two sequences are compressed sequentially using Wyner-Ziv coding with side information generated from the already decoded sequences. To improve the performance of Wyner-Ziv coding, a depth-map-based view interpolation approach and a novel soft-decision side information generation method are proposed. Experimental results show that our scheme can achieve a lower sum-rate than separate H.264/AVC coding. Comparison with JMVM joint encoding is also provided.