View synthesis motion estimation for multiview distributed video coding

Distributed Video Coding (DVC) is an attractive video coding scheme. It is well-known that the quality of the side information (SI) strongly impacts the coding performance of DVC. One of the most popular SI generation techniques is motion compensated temporal interpolation, where temporal interpolation is performed by assuming linear uniform motion. However, it is difficult to generate high quality SI because there are so many irregular motions. In multiview DVC, it becomes possible to utilize inter-view correlation in addition to temporal correlation. Therefore, this paper proposes a temporal frame interpolation method that can compensate irregular motion by estimating motion on view interpolated frames. Simulations show that the proposed method improves SI quality by up to 4.5 dB.