Mode dependent deblocking filter for video coding

In this paper, a mode dependent deblocking filter is proposed for suppressing the effects of quantization noise. The proposed filter employs Wiener Filter as an in-loop filter which can minimize the mean square error between the original image and the decoded image. In addition, to adapt to different local features of the decoded image efficiently, we design our filter based on the intra mode combination of each pair of 4×4 blocks. Experiment results show that the proposed filter achieves superior coding gains relative to H.264/AVC high profile with negligible complexity increase.