Paper Info
Title
Multi-user real-time wireless video with perceptual constraints
Abstract
The current military and civil ground based surveillance and reconnaissance is characterized by a large number of sensor assets, feeding resource constrained analysis nodes, and constrained by extremely limited transport bandwidth. The complexity of such systems is captured by the Networks of Systems (NoS) concept which use tools from wireless engineering and control theory. In this paper, the role of perceptual quality constraints on video-based NoS is investigated. An algorithm to determine the feasible set of nodes and optimal packet schedule via a Markov decision process, given their perceptual constraints and channel qualities is proposed. The H.264/SVC codec is used for compression, while the visual information fidelity pixel-domain (VIFP) full-reference image quality assessment model is used to measure perceptual quality. The algorithm is implemented in custom C;; software with over-the-air transmissions using 802.11 WLAN hardware. Real-time encoding is done for over-the-air transmission of the video. The results indicate that gains of 10-30% can be realized for a three node system.
Year
DOI
Venue
2013
10.1109/ACSSC.2013.6810480
Pacific Grove, CA
Keywords
Field
DocType
Markov processes,multiuser channels,real-time systems,video codecs,video surveillance,visual perception,wireless LAN,802.11 WLAN hardware,H.264-SVC codec,Markov decision process,NoS concept,VIFP full-reference image quality assessment model,control theory,multiuser real-time wireless video,networks of systems concept,optimal packet schedule,over-the-air transmissions,perceptual quality constraints,real-time encoding,resource constrained analysis nodes,sensor assets,transport bandwidth,video-based NoS,visual information fidelity pixel-domain,wireless engineering
Markov process,Computer science,Network packet,Markov decision process,Image quality,Real-time computing,Schedule,Feasible region,Codec,Multi-user
Conference
ISSN
ISBN
Citations 
1058-6393
978-1-4799-2388-5
0
PageRank 
References 
Authors
0.34
6
3
Name
Order
Citations
PageRank
Andrew Thornburg1513.71
Alan C. Bovik23341274.64
Robert W. Heath314415885.64