| Paper: | IMDSP-L6.2 | ||
| Session: | Interframe Subband/Wavelet Video Coding | ||
| Time: | Friday, May 21, 09:50 - 10:10 | ||
| Presentation: | Lecture | ||
| Topic: | Image and Multidimensional Signal Processing: Image and Video Coding | ||
| Title: | HIGHLY SCALABLE VIDEO CODING BY BIDIRECTIONAL PREDICT-UPDATE 3-BAND SCHEMES | ||
| Authors: | Christophe Tillier; ENST | ||
| Béatrice Pesquet-Popescu; ENST | |||
| Mihaela van der Schaar; University of California, Davis | |||
| Abstract: | Motion-compensated temporal filtering is an essential ingredient of recently developed wavelet-based scalable video coding schemes. Lifting implementation of these decompositions represents a versatile tool for spatio-temporal optimizations and numerous improvements have thus been proposed. An additional feature has been lately introduced by providing a 3-band lifting temporal decomposition, allowing non-dyadic scalability factors. This paper presents a motion-compensated scheme which is the 3-band equivalent of the 5/3 temporal filterbank. The proposed structure does not enter the classical lifting framework and therefore its invertibility is studied. Simulation results show higher coding efficiency, improved visual quality and more flexibility compared to the previously introduced Haar-like 2 or 3-band schemes. | ||
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