title: 2D+T acoustic boundary detection in echocardiography.
abstract: In this paper we address the problem of spatio-temporal acoustic boundary detection in echocardiography. We propose a phase-based feature detection method to be used as the front end to higher-level 2D+T/3D+T reconstruction algorithms. We develop a 2D+T version of this algorithm and illustrate its performance on some typical echocardiogram sequences. We show how our temporal-based algorithm helps to reduce the number of spurious feature responses due to speckle and provides feature velocity estimates. Further, our approach is intensity-amplitude invariant. This makes it particularly attractive for echocardiographic segmentation, where choosing a single global intensity-based edge threshold is problematic.
authors.affiliation: Department of Engineering Science, University of Oxford, UK. miguel@robots.ox.ac.uk
authors.forename: M
authors.initials: M
authors.lastname: Mulet-Parada
authors.forename: J A
authors.initials: JA
authors.lastname: Noble
mesh_terms: D000162:Acoustics; D000465:Algorithms; D004452:Echocardiography / Q000379:methods*; D006801:Humans; D007091:Image Processing, Computer-Assisted