Motion Compensated Wyner-Ziv Video Coding

In Wyner-Ziv video coding, efficient compression is achieved by exploiting source statistics at the decoder only, which is radically different from conventional video coding. The performance of a Wyner-Ziv video codec is greatly dependent on the quality of reconstructed side information. In this paper we give an explicit motion compensation scheme. Unlike existing schemes, motion compensation is carried out between side information and the quantized version of the transmitted frame. This needs neither the encoder to transmit additional, implicit motion information to the receiver nor two I frames for interpolating the middle frames. This enables a sequential decoding architecture, which is a necessity for real-time video coding. Our experimental results are promising. 2dB gain in the quality of reconstructed frames has been achieved