{"type":"ScholarlyArticle","title":"3D Object Representation and Matching with B-Splines and Surface Patches","authors":[{"name":"Bryant W. York","slug":"bryant-w-york","given":"Bryant W.","family":"York","affiliation":""},{"name":"Allen R. Hanson","slug":"allen-r-hanson","given":"Allen R.","family":"Hanson","affiliation":""},{"name":"Edward M. Riseman","slug":"edward-m-riseman","given":"Edward M.","family":"Riseman","affiliation":""}],"abstract":"An approach to 3D object representation and matching, which employs cubic B-splinc curves and Coons surface patches is described . 3D objects arc represented as structured collections of surfaLT patches whose boundary curves arc approximated by cuhic 1\\ -s plincs . Both curved and polyhedral objects may he rL· prcscntcd . A variety of 3D and 20 shape features arc defined which arL· easily nunput,·d for this representation . Many of the 3D features have 2D analogues , thus providing access paths from 21> to 3D . It is anticipated that this approaL'h will prove useful for matching 30 object models against 2D object descriptions . The representation. our approaches to the problems of indexing and matching, the state of the implementation, and ou.cxpcricnccs with the implementation are briefly discussed .","doi":null,"url":"https://ijcai.org/proceedings/1981/121","pdf":"https://ijcai.org/proceedings/1981/0121.pdf","markdown":"https://ijcai.org/proceedings/1981/121.md","bibtex":"https://ijcai.org/proceedings/1981/bibtex/121","volume":{"slug":"1981","title":"Proceedings of the Seventh International Joint Conference on Artificial Intelligence","short_title":"IJCAI 1981","url":"https://ijcai.org/proceedings/1981/","year":1981,"location":"Vancouver, British Columbia, Canada","dates":"24-28 August 1981","editors":"Roger C. Schank","isbn":"","publisher":"International Joint Conferences on Artificial Intelligence","doi_prefix":""},"section":"Vision: 3-d","track":"Vision: 3-d","number":121,"pages":{"first":648,"last":650},"keywords":[],"videos":[],"references":[],"license_note":"Copyright International Joint Conferences on Artificial Intelligence."}