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Shape-Based Models for Interactive Segmentation of Medical Images

Hinshaw, Kevin P and Altman, R. B. and Brinkley, James F (1995) Shape-Based Models for Interactive Segmentation of Medical Images. In Loew, M. H., Eds. Proceedings, SPIE Medical Imaging 1995: Image Processing 2434, pages pp. 771-780, San Diego, California.

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Abstract

Accurate image segmentation is one of the key problems in computer vision. In domains such as radiation treatment planning, dosimetrists must manually trace the outlines of a few critical structures on large numbers of images. Considerable similarity can be seen in the shape of these regions, both between adjacent slices in a particular patient and across the spectrum of patients. Consequently we should be able to model this similarity and use it to assist in the process of segmentation. Previous work has demonstrated that a constraint-based 2D radial model can capture generic shape information for certain shape classes, and can reduce user interaction by a factor of three over purely manual segmentation. Additional simulation studies have shown that a probabilistic version of the model has the potential to further reduce user interaction. This paper describes an implementation of both models in a general-purpose imaging and graphics framework and compares the usefulness of the models on several shape classes.

Item Type:Conference Poster
Keywords:atlas96|brain95|braincr96|kaz96|sig|slisp95, interactive 2D image segmentation, probabilistic models, constraint-based models, knowledge-based medical imaging, 2D shape analysis
Subjects:SIG Publications
ID Code:43
Deposited By:Hinshaw, Kevin
Deposited On:01 May 2003