{"type":"ScholarlyArticle","title":"Finding Picture Edges through Collinearity of Feature Points","authors":[{"name":"Frank O'Gorman","slug":"frank-o-apos-gorman","given":"Frank","family":"O'Gorman","affiliation":"Laboratory of Ex~erimental Psychology University of Sussex Brighton , Sussex , Engl"},{"name":"M. B. Clowes","slug":"m-b-clowes","given":"M. B.","family":"Clowes","affiliation":"Laboratory of Ex~erimental Psychology University of Sussex Brighton , Sussex , Engl"}],"abstract":"The recovery o f straight ~icture edges from digitisations of scenes containing ~oly hedra ( ' line finding ' ) is central to the functioning of scene analysis ~rograms . While recognising that recovery ~ro~erly involves a com~utational mobilisation of a great deal of knowledge - su~ported context , there remain some basic issues of re~resent ation whi ch govern th e way in which the primary data - grey lev~ls - are addressed . Th e ~a~er describes a ~arametric re~resenta tion of straight ~icture edges and its ~ro cedural de ~ loyment in the recovery of edges from digitisations of scenes whose contents are essentially ~olyhedra with strong visible shadows.","doi":null,"url":"https://ijcai.org/proceedings/1973/68","pdf":"https://ijcai.org/proceedings/1973/0068.pdf","markdown":"https://ijcai.org/proceedings/1973/68.md","bibtex":"https://ijcai.org/proceedings/1973/bibtex/68","volume":{"slug":"1973","title":"Proceedings of the Third International Joint Conference on Artificial Intelligence","short_title":"IJCAI 1973","url":"https://ijcai.org/proceedings/1973/","year":1973,"location":"Stanford, California, USA","dates":"20-23 August 1973","editors":"Nils J. Nilsson","isbn":"","publisher":"International Joint Conferences on Artificial Intelligence","doi_prefix":""},"section":"Computer Vision","track":"Computer Vision","number":68,"pages":{"first":543,"last":554},"keywords":[],"videos":[],"references":[{"position":1,"raw":"Barrow , H. G. and Popplestone , R. J . ( 1 971) . Relational Descriptions in Picture processing . Machine Int elligence , § , 377- 396 .","title":"Relational Descriptions in Picture processing","authors":"H G Barrow, R J Popplestone","year":"1971","venue":"Machine Int elligence","doi":null,"url":null,"internal_url":null},{"position":2,"raw":"Brice , C . R. and Fennema , C. L . (l970) . Scene Analysis Using Regions , Artificial I ntelligence , l , 3 , 205-226 .","title":"Scene Analysis Using Regions","authors":"C R Brice, C L Fennema","year":"0970","venue":"Artificial I ntelligence","doi":null,"url":null,"internal_url":null},{"position":3,"raw":"Currie , I.F., Bond , S . G., and Morison , J . D. (1971 ) . 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