Novel Motion Anchoring Strategies for Wavelet-based Highly Scalable Video Compression By Dominic Rüfenacht
English | PDF,EPUB | 2018 | 203 Pages | ISBN : 9811082243 | 20.17 MB
A key element of any modern video codec is the efficient exploitation of temporal redundancy via motion-compensated prediction. In this book, a novel paradigm of representing and employing motion information in a video compression system is described that has several advantages over existing approaches. Traditionally, motion is estimated, modelled, and coded as a vector field at the target frame it predicts. While this “prediction-centric” approach is convenient, the fact that the motion is “attached” to a specific target frame implies that it cannot easily be re-purposed to predict or synthesize other frames, which severely hampers temporal scalability.