Automated visual testing using trifocal analysis in an uncalibrated sequence of images

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dc.contributor.authorCarrasco, Miguel A.
dc.contributor.authorMery, Domingo
dc.date.accessioned2024-01-10T12:04:25Z
dc.date.available2024-01-10T12:04:25Z
dc.date.issued2006
dc.description.abstractAutomated visual testing using multiple views has been recently developed to automatically detect discontinuities in manufactured objects. The principal idea of this strategy is that, unlike the noise that appears randomly in images, only the discontinuities remain stable in a sequence of images because they remain in their position relative to the movement of the object being analyzed. This sort of multiple view imaging has been successfully applied in sequences of calibrated images for which the 3D -> 2D transference function for the projection of the views is known precisely. Nonetheless, its application in industrial environments is difficult because of the instabilities inherent in the system. This investigation proposes a new strategy, based on the detection of discontinuities in a uncalibrated sequence of images, The methodology consists in constructing a model and carrying out a trifocal analysis that allows the determination of the real position of a discontinuity using corresponding control points in the sequence. Experimental results obtained on radioscopic images of die castings illustrate the potential in the detection of discontinuities in uncalibrated images, detecting the totality of the discontinuities in the sequence.
dc.fechaingreso.objetodigital2024-05-02
dc.format.extent7 páginas
dc.fuente.origenWOS
dc.identifier.issn0025-5327
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/75791
dc.identifier.wosidWOS:000240373700015
dc.information.autorucIngeniería;Mery D;S/I;102382
dc.issue.numero9
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final906
dc.pagina.inicio900
dc.publisherAMER SOC NONDESTRUCTIVE TEST
dc.revistaMATERIALS EVALUATION
dc.rightsregistro bibliográfico
dc.subjectcomputer vision
dc.subjectmultiple view geometry
dc.subjectautomated visual testing
dc.subjectdiscontinuity detection
dc.subjectALUMINUM CASTINGS
dc.subjectINSPECTION
dc.subjectDEFECTS
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleAutomated visual testing using trifocal analysis in an uncalibrated sequence of images
dc.typeartículo
dc.volumen64
sipa.codpersvinculados102382
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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