Memory-constrained 3D wavelet transform for video coding without boundary effects

Authors:
Jizheng Xu;Zixiang Xiong;Shipeng Li;Ya-Qin Zhang
Affiliations:
Inst. of Comput. Technol., Acad. Sinica, Beijing;-;-;-
Venue:
IEEE Transactions on Circuits and Systems for Video Technology
Year:
2002

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Abstract

Three-dimensional (3D) wavelet-based scalable video coding provides a viable alternative to standard MC-DCT coding. However, many current 3D wavelet coders experience severe boundary effects across group of pictures (GOP) boundaries. This paper proposes a memory-efficient transform technique via lifting that effectively computes wavelet transforms of a video sequence continuously on the fly, thus eliminating the boundary effects due to limited length of individual GOPs. Coding results show that the proposed scheme completely eliminates the boundary effects and gives superb video playback quality.