Approximate Circuits in Low-Power Image and Video Processing: The Approximate Median Filter

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dc.contributor.authorSekanina, Lukas
dc.contributor.authorVasicek, Zdenek
dc.contributor.authorMrazek, Vojtech
dc.coverage.issue3cs
dc.coverage.volume26cs
dc.date.accessioned2017-09-15T08:41:53Z
dc.date.available2017-09-15T08:41:53Z
dc.date.issued2017-09cs
dc.description.abstractLow power image and video processing circuits are crucial in many applications of computer vision. Traditional techniques used to reduce power consumption in these applications have recently been accompanied by circuit approximation methods which exploit the fact that these applications are highly error resilient and, hence, the quality of image processing can be traded for power consumption. On the basis of a literature survey, we identified the components whose implementations are the most frequently approximated and the methods used for obtaining these approximations. One of the components is the median image filter. We propose, evaluate and compare two approximation strategies based on Cartesian genetic programming applied to approximate various common implementations of the median filter. For filters developed using these approximation strategies, trade-offs between the quality of filtering and power consumption are investigated. Under conditions of our experiments we conclude that better trade-offs are achieved when the image filter is evolved from scratch rather than a conventional filter is approximated.en
dc.formattextcs
dc.format.extent623-632cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2017 vol. 26, č. 3, s. 623-632. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2017.0623en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/69957
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2017/17_03_0623_0632.pdfcs
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectApproximate computingen
dc.subjectcircuit designen
dc.subjectevolutionary computationen
dc.subjectimage filteren
dc.titleApproximate Circuits in Low-Power Image and Video Processing: The Approximate Median Filteren
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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