2006 Articles

Comparing Optical-Flow Based Methods for Quantification of Myocardial Deformations on RT3D Ultrasound

Duan, Qi; Angelini, Elsa D.; Gerard, Olivier; Homma, Shunichi; Laine, Andrew F.

This paper presents a new homogeneity measure for variational segmentation with multiple level set functions. We propose to modify the quadratic homogeneity measure to trade off the convexity of the function against a faster rate of convergence. We tested in two series of experiments the performance of this new homogeneity force at converging to appropriate partitioning of brain MRI data sets, over a large range of image spatial resolution and image quality, in terms of tissue homogeneity and contrast.