Automatic detection of landmarks for image registration applied to bone age assessment

Authors:
Emma Muñoz-Moreno;Rubén Cárdenes;Rodrigo De Luis-García;Miguel Ángel Martín-Fernández;Carlos Alberola-López
Affiliations:
Laboratorio de Procesado de Imagen, University of Valladolid, Spain;Center for Technology in Medicine, Dpt. of Telematics Engineering, University of Las Palmas de Gran Canaria, Spain;Laboratorio de Procesado de Imagen, University of Valladolid, Spain;Laboratorio de Procesado de Imagen, University of Valladolid, Spain;Laboratorio de Procesado de Imagen, University of Valladolid, Spain
Venue:
ISCGAV'05 Proceedings of the 5th WSEAS International Conference on Signal Processing, Computational Geometry & Artificial Vision
Year:
2005

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Abstract

Bone age assessment is a medical procedure to diagnose bone diseases, specifically, growth pathologies. As of today, it is carried out by visual inspection which, needless to say, is a tedious and time consuming action. Automated methods to carry out such a task are therefore desirable. In this paper we take a step in this direction by proposing the automatic detection of a set of anatomical landmarks in positions of interest in radiographs. Such landmarks will then be used to carry out a registration procedure described elsewhere to eventually come up with a bone age estimation. The algorithm finds the landmarks by performing a rough segmentation to find the finger axes and then intensity profiles along the axes are analyzed to locate joints between finger bones.