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Proceedings Paper

Tracking the interframe deformation of structures in 3D ultrasound imaging
Author(s): M. Syn; J. P.M. Gosling; Richard W. Prager; Laurence Berman; J. Crowley
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Paper Abstract

Three dimensional ultrasound imaging with a freehand probe allows a flexible approach to medical visualization and diagnosis. Given the imperfect accuracy of proprioceptive devices used to log the position and tilt of the probe, it is important to utilize the position constraints provided by image evidence. This is also important if we wish to consider the visualization of structures which move significantly during acquisition, such as a heart of fetus. We present here an initial approach to more robust segmentation and shape recovery in a particularly noisy modality. We consider 2D segmentation based on edge evidence, using first an active contour, then finding an optimal segmentation using simulated annealing. Correspondence between contours in adjacent frames can only be solved in general cases by use of a 3D prior model. Dynamic physics-based mesh models as used by Pentland [20] and Nastar [17], allow for shape modelling, then over-constrained 3D shape recovery can be performed using the intrinsic vibration modes of the model.

Paper Details

Date Published: 9 September 1994
PDF: 9 pages
Proc. SPIE 2359, Visualization in Biomedical Computing 1994, (9 September 1994); doi: 10.1117/12.185177
Show Author Affiliations
M. Syn, Cambridge Univ. (United Kingdom)
J. P.M. Gosling, Cambridge Univ. (United Kingdom)
Richard W. Prager, Cambridge Univ. (United Kingdom)
Laurence Berman, Cambridge Univ. (United Kingdom)
J. Crowley, Cambridge Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 2359:
Visualization in Biomedical Computing 1994
Richard A. Robb, Editor(s)

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