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Architecture of Wireless Visual Sensor Node with Region of Interest Coding
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Institutionen för informationsteknologi och medier.ORCID-id: 0000-0003-1923-3843
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Institutionen för informationsteknologi och medier.ORCID-id: 0000-0002-6484-9260
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Institutionen för informationsteknologi och medier.
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Institutionen för informationsteknologi och medier.
Visa övriga samt affilieringar
2012 (Engelska)Ingår i: Proceedings - 2012 IEEE 3rd International Conference on Networked Embedded Systems for Every Application, NESEA 2012, IEEE conference proceedings, 2012, s. Art. no. 6474029-Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

The challenges involved in designing a wirelessVision Sensor Node include the reduction in processing andcommunication energy consumption, in order to maximize itslifetime. This work presents an architecture for a wireless VisionSensor Node, which consumes low processing andcommunication energy. The processing energy consumption isreduced by processing lightweight vision tasks on the VSN andby partitioning the vision tasks between the wireless VisionSensor Node and the server. The communication energyconsumption is reduced with Region Of Interest coding togetherwith a suitable bi-level compression scheme. A number ofdifferent processing strategies are investigated to realize awireless Vision Sensor Node with a low energy consumption. Theinvestigation shows that the wireless Vision Sensor Node, usingRegion Of Interest coding and CCITT group4 compressiontechnique, consumes 43 percent lower processing andcommunication energy as compared to the wireless Vision SensorNode implemented without Region Of Interest coding. Theproposed wireless Vision Sensor Node can achieve a lifetime of5.4 years, with a sample period of 5 minutes by using 4 AAbatteries.

Ort, förlag, år, upplaga, sidor
IEEE conference proceedings, 2012. s. Art. no. 6474029-
Nyckelord [en]
architecture, wireless vision sensor node, Region of interest coding, Smart camera, wireless visual sensor networks, wireless multimedia sensor networks.
Nationell ämneskategori
Elektroteknik och elektronik
Identifikatorer
URN: urn:nbn:se:miun:diva-18021DOI: 10.1109/NESEA.2012.6474029ISI: 000319471300019Scopus ID: 2-s2.0-84875603760Lokalt ID: STCISBN: 978-146734723-5 (tryckt)OAI: oai:DiVA.org:miun-18021DiVA, id: diva2:579346
Konferens
2012 IEEE 3rd International Conference on Networked Embedded Systems for Every Application, NESEA 2012; Liverpool; United Kingdom; 13 December 2012 through 14 December 2012; Category numberCFP12NEE-ART; Code 96291
Tillgänglig från: 2012-12-19 Skapad: 2012-12-19 Senast uppdaterad: 2016-10-20Bibliografiskt granskad
Ingår i avhandling
1. Energy Efficient and Programmable Architecture for Wireless Vision Sensor Node
Öppna denna publikation i ny flik eller fönster >>Energy Efficient and Programmable Architecture for Wireless Vision Sensor Node
2013 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

Wireless Vision Sensor Networks (WVSNs) is an emerging field which has attracted a number of potential applications because of smaller per node cost, ease of deployment, scalability and low power stand alone solutions. WVSNs consist of a number of wireless Vision Sensor Nodes (VSNs). VSN has limited resources such as embedded processing platform, power supply, wireless radio and memory.  In the presence of these limited resources, a VSN is expected to perform complex vision tasks for a long duration of time without battery replacement/recharging. Currently, reduction of processing and communication energy consumptions have been major challenges for battery operated VSNs. Another challenge is to propose generic solutions for a VSN so as to make these solutions suitable for a number of applications.

To meet these challenges, this thesis focuses on energy efficient and programmable VSN architecture for machine vision systems which can classify objects based on binary data. In order to facilitate generic solutions, a taxonomy has been developed together with a complexity model which can be used for systems’ classification and comparison without the need for actual implementation. The proposed VSN architecture is based on tasks partitioning between a VSN and a server as well as tasks partitioning locally on the node between software and hardware platforms. In relation to tasks partitioning, the effect on processing, communication energy consumptions, design complexity and lifetime has been investigated.

The investigation shows that the strategy, in which front end tasks up to segmentation, accompanied by a bi-level coding, are implemented on Field Programmable Platform (FPGA) with small sleep power, offers a generalized low complexity and energy efficient VSN architecture. The implementation of data intensive front end tasks on hardware reconfigurable platform reduces processing energy. However, there is a scope for reducing communication energy, related to output data. This thesis also explores data reduction techniques including image coding, region of interest coding and change coding which reduces output data significantly.

For proof of concept, VSN architecture together with tasks partitioning, bi-level video coding, duty cycling and low complexity background subtraction technique has been implemented on real hardware and functionality has been verified for four applications including particle detection system, remote meter reading, bird detection and people counting. The results based on measured energy values shows that, depending on the application, the energy consumption can be reduced by a factor of approximately 1.5 up to 376 as compared to currently published VSNs. The lifetime based on measured energy values showed that for a sample period of 5 minutes, VSN can achieve 3.2 years lifetime with a battery of 37.44 kJ energy. In addition to this, proposed VSN offers generic architecture with smaller design complexity on hardware reconfigurable platform and offers easy adaptation for a number of applications as compared to published systems.

Ort, förlag, år, upplaga, sidor
Sundsvall: Mid Sweden University, 2013. s. 115
Serie
Mid Sweden University doctoral thesis, ISSN 1652-893X ; 167
Nyckelord
Wireless Vision Sensor Node, Smart camera, Wireless Vision Sensor Networks, Architecture, Video coding.
Nationell ämneskategori
Elektroteknik och elektronik
Identifikatorer
urn:nbn:se:miun:diva-20179 (URN)STC (Lokalt ID)978-91-87557-12-5 (ISBN)STC (Arkivnummer)STC (OAI)
Disputation
2013-10-22, M108, holmgatan 10,SE 85170, sundsvall, 10:03 (Engelska)
Opponent
Handledare
Forskningsfinansiär
KK-stiftelsen
Tillgänglig från: 2013-11-11 Skapad: 2013-11-11 Senast uppdaterad: 2016-10-20Bibliografiskt granskad

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Av författaren/redaktören
Imran, MuhammadKhursheed, KhursheedAhmad, NaeemO'Nils, MattiasLawal, NajeemWaheed, Malik A.
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Institutionen för informationsteknologi och medier
Elektroteknik och elektronik

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