Title:   MAP Segmentation of the Blood-Tissue Boundary
            in Short-axis Cardiac Ultrasound

Authors:    Hemant D. Tagare, Zhong Tao, C. Carl Jaffe

Abstract: 
In this paper we present an algorithm for evolving
an active contour to get a MAP estimate of the blood-tissue
boundary in short-axis cardiac ultrasound. The classical active
contour evolution strategy, which is gradient descent, gets stuck
in local maxima of the MAP objective function. We propose an
alternate evolution strategy that can escape from spurious local
minima. Segmentation results with the new strategy will be presented