LDPC based distributed video coding with multiple side information sets

The side information (SI) used to decode the original frame in the distributed video coding (DVC) is created by a key frame encoded by an existing video codec. This paper proposes a method to restore the original frame using the characteristics of multiple sets of SI and low-density parity-check (LDPC) code. It was identified that the optimal SI could be made by combining multiple sets of SI restored through repeated decoding of SI and LDPC that the SI could be restored to be the closest to the original frame using the optimal SI.