Multiple Description Coding Scheme for H.264/AVC Intra Slices
نویسندگان
چکیده
This paper proposes a Multiple Description Scalar Quantisation (MDSQ) coding scheme for H.264/AVC intra slices which is based on a multi-loop structure to prevent distortion accumulation at the decoder due to drift in intra predicted blocks. The drift distortion is reduced by sending a controlled amount of redundant information to be used whenever any of the descriptions fails to reach the decoder. The experimental results show that the quality of intra coded slices is significantly improved (e.g., 6-8 dB) at reduced redundancy cost, (e.g., 0.2-0.25), in comparison with the open loop MDSQ implementation.
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