Title :
An algorithm for locating landmarks on dental X-rays
Author :
Tong, W. ; Nugent, S.T. ; Jensen, G.M. ; Fay, D.F.
Author_Institution :
Dept. of Electr. Eng., Tech. Univ. of Nova Scotia, Halifax, NS, Canada
Abstract :
A knowledge-based algorithm for locating certain characteristic anatomical points, or landmarks, on lateral dental X-rays or cephalograms using digital image processing and feature recognition techniques is discussed. Results are reported which show that this algorithm can locate 17 points out of the 27 required for craniofacial measurement. Combined with an algorithm developed earlier, the landmarking process can be automated using an IBM compatible microcomputer. The experiment indicates that the process can be performed accurately on soft tissue as well as bony tissue. More sophisticated techniques are required to improve the accuracy of the results in some internal regions that have complex features
Keywords :
computerised picture processing; diagnostic radiography; medical diagnostic computing; IBM compatible microcomputer; bony tissue; cephalograms; characteristic anatomical points; craniofacial measurement; dental X-rays; digital image processing; feature recognition techniques; knowledge-based algorithm; landmark location algorithm; medical diagnostic imaging; soft tissue; Biological tissues; Data mining; Dentistry; Digital images; Image recognition; Image resolution; Knowledge engineering; Pixel; Skull; X-rays;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.95869
