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Perceptual Semantics for Video in Situation Awareness

Authors:
María Alejandra Pimentel-Niño
María Ángeles Vázquez-Castro
Iñigo Hernáez-Corres

Keywords: Perceptual semantics; adaptive video; situation awareness; QoE

Abstract:
Abstract--- We introduce novel perceptual semantics for video adaptation in multimedia communications. The target is to enhance situation awareness in non-computer aided processes as in emergency operations. Our proposed perceptual semantics relate to end user requested resolution in the temporal domain for a better assessment of event's evolutions seen from streaming video. Adaptation is enabled at transmission via a perceptual semantics feedback loop to adapt source coding on-the fly in terms of frame rate. The overall framework contemplates the use of an underlying cross-layer optimization that copes with network congestion and erasures in best effort scenarios. We show through simulations that within the proposed framework, the perceptual semantics are preserved. Moreover, we show it complies with information-centric-networking philosophy and architecture, such that it is in line with content-aware trends in networking.

Pages: 11 to 16

Copyright: Copyright (c) IARIA, 2014

Publication date: October 12, 2014

Published in: conference

ISSN: 2163-9027

ISBN: 978-1-61208-368-1

Location: Nice, France

Dates: from October 12, 2014 to October 16, 2014