2005 | OriginalPaper | Chapter
Motion-Compensated 3D Wavelet Video Coding Based on Adaptive Temporal Lifting Filter Implementation
Authors : Guiguang Ding, Qionghai Dai, Wenli Xu
Published in: Computational Intelligence and Security
Publisher: Springer Berlin Heidelberg
Activate our intelligent search to find suitable subject content or patents.
Select sections of text to find matching patents with Artificial Intelligence. powered by
Select sections of text to find additional relevant content using AI-assisted search. powered by
In wavelet-based video coding with motion-compensated lifting, efficient compression is achieved by exploiting motion-compensated temporal filtering (MCTF). The performance of a 3D wavelet video codec is greatly dependent on the efficient of MCTF. In this paper, an adaptive motion-compensated temporal filter scheme is proposed for wavelet video coding. Our method focused to control the level number of the temporal decomposition by detecting the number of the un-connection pixels in low-pass frame to avoid the inefficiency of MCTF while scene changing quickly. Moreover, this method has most useful features of predictive wavelet codecs, such as multiple reference frame and bi-directional prediction. Our experimental results show that, compared with the conventional MCTF, the proposed scheme has better coding performance for most sequences.