An image processing system for locating craniofacial landmarks

Author

Cardillo, J. ; Sid-Ahmed, M.A.

Author_Institution

Dept. of Electr. Eng., Windsor Univ., Ont., Canada

Volume

13

Issue

2

fYear

1994

fDate

6/1/1994 12:00:00 AM

Firstpage

275

Lastpage

289

Abstract

A new automatic target recognition algorithm has been developed to extract craniofacial landmarks from lateral skull X-rays (cephalograms). The locations of these landmarks are used by orthodontists in what is referred to as a cephalometric evaluation. The evaluation assists in the diagnosis of anomalies and in the monitoring of treatments. The algorithm is based on gray-scale mathematical morphology. A statistical approach to training was used to overcome subtle differences in skeletal topographies. Decomposition was used to desensitize the algorithm to size differences. A system was trained to locate 20 landmarks. Tests on 40 X-rays showed an 85% recognition rate on average

Keywords

bone; diagnostic radiography; medical image processing; anomalies diagnosis; automatic target recognition algorithm; cephalograms; craniofacial landmarks location; decomposition; gray-scale mathematical morphology; image processing system; lateral skull X-rays; medical diagnostic imaging; orthodontists; statistical approach; treatments monitoring; Biological tissues; Head; Image processing; Monitoring; Morphology; Radiography; Skin; Skull; Target recognition; X-rays;

fLanguage

English

Journal_Title

Medical Imaging, IEEE Transactions on

Publisher

ieee

ISSN

0278-0062

Type

jour

DOI

10.1109/42.293920

Filename

293920