Scalable video coding with multi-layer motion vector palettes

Abstract

Scalable video coding (SVC) allows an encoded bitstream to be brought down in scale or quality without the need for further processing. This study presents a wavelet-based motion-compensated system for SVC. The motion vectors are encoded in a scalable manner that employs a palette of motion vectors split into layers, which gives good scalability and low bit rates. The algorithms were designed to keep the complexity and memory requirements low, making the system suitable for hardware implementation. Experimental results show that the compression performance of the proposed system compares well with the joint scalable video model reference software for scalable video extension to H.264/AVC, while providing a finer and larger range of quality scalability.

A simplified implementation of barbell lifting wavelets for scalable video coding

“…CW NW k (7) Here k is the number of neighbourhood pixel samples in the scheme and it can be equal to 4 or 8 if it is the case mentioned above. In the proposal, the same weight is distributed to different neighbourhood pixel sample.…”

“…Bilel Ben Fradj and Azza Ouled Zaid propose a new scalable video coder which combines motion-compensated temporal filtering (MCTF) with an embedded wavelet-based coder [5]. In the study by T. Spiteri and J.Nunez-Yanez [7], a wavelet-based motion-compensated system for SVC is proposed, in which motion vectors are encoded in a scalable manner that employs a palette of motion vectors split into layers.…”