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Article: Efficient on-demand image transmission in visual sensor networks

TitleEfficient on-demand image transmission in visual sensor networks
Authors
Issue Date2007
PublisherHindawi Publishing Corporation. The Journal's web site is located at http://www.hindawi.com/journals/asp/
Citation
Eurasip Journal On Advances In Signal Processing, 2007, v. 2007 How to Cite?
AbstractIn a tracking system, an object of interest is monitored continuously in a sensor network. Information about the object is kept in the sensors and sensors transmit the information upon request. In this paper, we consider the scenario where all sensors around a targeted object capture images of it and these pictures will be sent to a mobile agent upon request. Due to the size and energy limitations in sensors, images kept in sensors are often small and highly compressed. We describe a framework to facilitate a mobile agent in the sensor network to request images of the object of interest. As sensors are limited in energy, it is desirable to reduce the energy used in transmitting the images. We observe that, in a sensor network that is sufficiently dense, images from neighbor cameras would likely overlap, and therefore intermediate sensors can process and combine overlapping portions so as to reduce the energy spent on image transmission. We develop a protocol for involved sensors to determine how to transmit the images they have kept to the mobile agent in an energy efficient manner. Our protocol is truly distributed and does not require any global information.We evaluate our protocol through extensive simulations. Copyright © 2007 Hindawi Publishing Corporation. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/73695
ISSN
2006 Impact Factor: 0.463
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChow, KYen_HK
dc.contributor.authorLui, KSen_HK
dc.contributor.authorLam, EYen_HK
dc.date.accessioned2010-09-06T06:53:52Z-
dc.date.available2010-09-06T06:53:52Z-
dc.date.issued2007en_HK
dc.identifier.citationEurasip Journal On Advances In Signal Processing, 2007, v. 2007en_HK
dc.identifier.issn1110-8657en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73695-
dc.description.abstractIn a tracking system, an object of interest is monitored continuously in a sensor network. Information about the object is kept in the sensors and sensors transmit the information upon request. In this paper, we consider the scenario where all sensors around a targeted object capture images of it and these pictures will be sent to a mobile agent upon request. Due to the size and energy limitations in sensors, images kept in sensors are often small and highly compressed. We describe a framework to facilitate a mobile agent in the sensor network to request images of the object of interest. As sensors are limited in energy, it is desirable to reduce the energy used in transmitting the images. We observe that, in a sensor network that is sufficiently dense, images from neighbor cameras would likely overlap, and therefore intermediate sensors can process and combine overlapping portions so as to reduce the energy spent on image transmission. We develop a protocol for involved sensors to determine how to transmit the images they have kept to the mobile agent in an energy efficient manner. Our protocol is truly distributed and does not require any global information.We evaluate our protocol through extensive simulations. Copyright © 2007 Hindawi Publishing Corporation. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherHindawi Publishing Corporation. The Journal's web site is located at http://www.hindawi.com/journals/asp/en_HK
dc.relation.ispartofEurasip Journal on Advances in Signal Processingen_HK
dc.titleEfficient on-demand image transmission in visual sensor networksen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1687-6172&volume=2007&spage=95076&epage=&date=2007&atitle=Efficient+on-demand+image+transmission+in+visual+sensor+networksen_HK
dc.identifier.emailLui, KS:kslui@eee.hku.hken_HK
dc.identifier.emailLam, EY:elam@eee.hku.hken_HK
dc.identifier.authorityLui, KS=rp00188en_HK
dc.identifier.authorityLam, EY=rp00131en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1155/2007/95076en_HK
dc.identifier.scopuseid_2-s2.0-33846223990en_HK
dc.identifier.hkuros125263en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33846223990&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume2007en_HK
dc.identifier.isiWOS:000248212700001-
dc.identifier.scopusauthoridChow, KY=15046367600en_HK
dc.identifier.scopusauthoridLui, KS=7103390016en_HK
dc.identifier.scopusauthoridLam, EY=7102890004en_HK

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