Please use this identifier to cite or link to this item: https://repository.cihe.edu.hk/jspui/handle/cihe/217
DC FieldValueLanguage
dc.contributor.authorLiu, Xuetingen_US
dc.contributor.otherHan, C.-
dc.contributor.otherSinn, L. T.-
dc.contributor.otherWong, T. T.-
dc.date.accessioned2021-03-15T09:17:28Z-
dc.date.available2021-03-15T09:17:28Z-
dc.date.issued2018-
dc.identifier.urihttps://repository.cihe.edu.hk/jspui/handle/cihe/217-
dc.description.abstractShape matching plays an important role in various computer vision and graphics applications such as shape retrieval, object detection, image editing, image retrieval, etc. However, detecting shapes in cluttered images is still quite challenging due to the incomplete edges and changing perspective. In this paper, we propose a novel approach that can efficiently identify a queried shape in a cluttered image. The core idea is to acquire the transformation from the queried shape to the cluttered image by summarising all point-to-point transformations between the queried shape and the image. To do so, we adopt a point-based shape descriptor, the pyramid of arc-length descriptor (PAD), to identify point pairs between the queried shape and the image having similar local shapes. We further calculate the transformations between the identified point pairs based on PAD. Finally, we summarise all transformations in a 4D transformation histogram and search for the main cluster. Our method can handle both closed shapes and open curves, and is resistant to partial occlusions. Experiments show that our method can robustly detect shapes in images in the presence of partial occlusions, fragile edges, and cluttered backgrounds.en_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofComputational Visual Mediaen_US
dc.titleTransHist: Occlusion-robust shape detection in cluttered imagesen_US
dc.typejournal articleen_US
dc.identifier.doi10.1007/s41095-018-0104-1-
dc.contributor.affiliationSchool of Computing and Information Sciencesen_US
dc.relation.issn2096-0662en_US
dc.description.volume4en_US
dc.description.issue2en_US
dc.description.startpage161en_US
dc.description.endpage172en_US
dc.cihe.affiliatedNo-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.fulltextWith Fulltext-
item.cerifentitytypePublications-
item.openairetypejournal article-
item.grantfulltextopen-
crisitem.author.deptSchool of Computing and Information Sciences-
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