Segmentation of circular casting defects using a robust algorithm

Simple item page
dc.contributor.authorGhoreyshi, A
dc.contributor.authorVidal, R
dc.contributor.authorMery, D
dc.date.accessioned2024-01-10T14:21:37Z
dc.date.available2024-01-10T14:21:37Z
dc.date.issued2005
dc.description.abstractIn this paper, we describe three methods for detecting defects in cast aluminium using X-radioscopic images. The first method is based on the assumption that most defects have the shape of a circular high-intensity spot. Therefore, defects are detected using a template matching-like algorithm. This method works well when the defects are far enough from the edges of the major shapes in the image, and when the image gives a closer view of the defect. The second method deals with the defects which are closer to the edges in the image, and therefore are missed by the first method. This method distinguishes between defects and edges by using the following properties of a defect: they are local maxima of the image intensity, and the distribution of the intensity in a patch around the defect should resemble more that of a corner than that of an edge. Both local maxima and corner-like properties are computed using the second order derivatives of the image intensities, and the Harris Corner Detector algorithm. The third algorithm is a simple combination of the aforementioned methods in which a pixel is considered to be a defect if it is detected as a defect by either of the two methods. We present experiments using the third method showing that 94.3% of the defects are correctly detected, with only 1.3 false alarms per image.
dc.format.extent3 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1784/insi.2005.47.10.615
dc.identifier.eissn1754-4904
dc.identifier.issn1354-2575
dc.identifier.urihttps://doi.org/10.1784/insi.2005.47.10.615
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79729
dc.identifier.wosidWOS:000232793200009
dc.information.autorucIngeniería;Mery D;S/I;102382
dc.issue.numero10
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final617
dc.pagina.inicio615
dc.publisherBRITISH INST NON-DESTRUCTIVE TESTING
dc.revistaINSIGHT
dc.rightsregistro bibliográfico
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleSegmentation of circular casting defects using a robust algorithm
dc.typeartículo
dc.volumen47
sipa.codpersvinculados102382
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Segmentation of circular casting defects using a robust algorithm.pdf
Size:
2.75 KB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Artículos de revistas