In this note we present a coupled optimization model for boundary determination. One part of the model incorporates a prior shape into a geometric active contour model with a fixed parameter. The second part determines the 'best' parameter used in the first part by maximizing the mutual information of the image geometry between the prior and an aligned novel image over all the alignments that are the solutions of the first part corresponding to different parameters. We also present an alternative method, which generates an intensity model formed as the average of a set of aligned training images. Experimental results on cardiac ultrasound images are presented. These results indicate that the proposed model provides close agreement with expert traced borders, and the parameter determined in this model for one image can be used for images with similar properties. The existence of a solution to the proposed minimization problem is also discussed.
Using prior shape and intensity profile in medical image segmentation
Proceedings Ninth IEEE International Conference on Computer Vision ; 1117-1124 vol.2
2003-01-01
760393 byte
Conference paper
Electronic Resource
English
Using Prior Shape and Intensity Profile in Medical Image Segmentation
British Library Conference Proceedings | 2003
|Global structure constrained local shape prior estimation for medical image segmentation
British Library Online Contents | 2013
|Image segmentation with one shape prior - A template-based formulation
British Library Online Contents | 2012
|Watershed segmentation using prior shape and appearance knowledge
British Library Online Contents | 2009
|Graph cuts segmentation using an elliptical shape prior
IEEE | 2005
|