Low-complexity distributed multiple description coding for wireless video sensor networks

Quality-of-service-guaranteed video communication in wireless video sensor networks (WVSNs) is extremely challenging because of the unique constraints of WVSN (e.g. limited resources of sensors and high error rates in wireless sensor networks) and the characteristics of video traffic (e.g. huge data...

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Vydáno v:	IET wireless sensor systems Ročník 3; číslo 3; s. 205 - 215
Hlavní autoři:	Liu, Wenhui, Vijayanagar, Krishna R, Kim, Joohee
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Stevenage The Institution of Engineering and Technology 01.09.2013 Institution of Engineering and Technology The Institution of Engineering & Technology
Témata:	Applied sciences Broadcasting. Videocommunications. Audiovisual Coders Coding Complexity Delay distributed video coding DVC Encoders error resilience Exact sciences and technology Image processing Information, signal and communications theory low‐complexity distributed multiple description coding method network coding Networks Operation, maintenance, reliability quality of service quality‐of‐service‐guaranteed video communication rate distortion theory rate‐distortion performance resource‐limited encoder application Sensors Services and terminals of telecommunications Signal processing Systems, networks and services of telecommunications telecommunication traffic Telecommunications Telecommunications and information theory Telemetry. Remote supervision. Telewarning. Remote control tight delay bound video coding video communication video traffic characteristics Videocommunications (networks and services) Wireless communication wireless sensor networks wireless video sensor network WVSN network coding video traffic characteristics wireless sensor networks quality-of-service-guaranteed video communication quality of service video coding rate-distortion performance rate distortion theory DVC WVSN low-complexity distributed multiple description coding method tight delay bound distributed video coding error resilience video communication resource-limited encoder application wireless video sensor network telecommunication traffic Video coding Performance evaluation Coding circuit Wireless telecommunication Measurement sensor Video signal Error rate Rate distortion theory Information rate Information transmission Videoconference Video signal processing Remote sensing Simulation Videocommunication Error detection Wireless network Delay time Error correction Sensor array Service quality Signal detection Transmission error
ISSN:	2043-6386, 2043-6394, 2043-6394
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Popis
Shrnutí:	Quality-of-service-guaranteed video communication in wireless video sensor networks (WVSNs) is extremely challenging because of the unique constraints of WVSN (e.g. limited resources of sensors and high error rates in wireless sensor networks) and the characteristics of video traffic (e.g. huge data rate and tight delay bounds). Distributed video coding (DVC) has emerged as a new video coding paradigm for video applications with resource-limited encoders. However, current DVC architectures still have several technical limitations that prevent their widespread use in real-world applications. A low-complexity distributed multiple description coding method that combines the principles of multiple description coding and DVC has been proposed to further improve the error resilience of DVC, while maintaining low encoder complexity and good rate-distortion performance in WVSN. Simulation results show that the proposed method is robust against transmission errors, while maintaining low encoder complexity and low system latency for resource-limited applications in WVSNs.
Bibliografie:	SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 14 ObjectType-Article-2 content type line 23
ISSN:	2043-6386 2043-6394 2043-6394
DOI:	10.1049/iet-wss.2012.0115