A geometric level set model for ultrasounds analysis
Augusto Sarti, R. Malladi · University of North Texas Digital Library (University of North Texas) · 1999
We propose a partial differential equation (PDE) for filtering and segmentation of echocardiographic images based on a geometric-driven scheme.The method allows edge-preserving image smoothing and a semi-automatic segmentation of the heart chambers, that regularizes the shapes and improves edge fidelity especially in presence of distinct gaps in the edge map as is common in ultrasound imagery.A numerical scheme for solving the proposed PDE is borrowed from level set methods.Results on human in vivo acquired 2D, 2D+time,3D, 3D+time echocardiographic images are shown.