Video Post-Processing with Adaptive 3-D Filters for Wavelet Ringing Artifact Removal
IEICE - Transactions on Information and Systems
New low complexity DCT based video compression method
ICT'09 Proceedings of the 16th international conference on Telecommunications
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A non-predictive video coding is a new branch of emerging research area in video coding, where the motion estimation/compensation or prediction step in the temporal domain is omitted. One direction was to look for the exploitation of temporal decomposition of video frames. The proposed method consists on 3D to 2D transformation of the temporal frames that allows exploring the temporal redundancy of the video using 2D wavelet transforms and avoiding the computationally demanding motion compensation step. Although the many advantages presented by the proposed coder, some annoying artifacts still exist. In this paper, we will explore the performances of the proposed method and try to better show what it actually offers to users. The paper presents also the extensions chosen in order to reduce the perceived artifacts and increase the perceptual as well as objective (PSNR) decoded video quality, which is actually competitive with state-of-the-art video coder algorithms, especially when low computational demands of the proposed approach are taken into account.