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Abstract for housden_tr553

Cambridge University Engineering Department Technical Report CUED/F-INFENG/TR553


R.J. Housden, A.H. Gee, G.M. Treece and R.W. Prager

May 2006

Freehand 3D ultrasound can be acquired without a position sensor by finding the separations of pairs of frames using information in the images themselves. Previous work has not considered how to reconstruct entirely freehand data, which can exhibit irregularly spaced frames, intersecting frames, non-monotonic out-of-plane probe motion and significant in-plane motion. This paper presents reconstruction methods that overcome these limitations and are able to robustly reconstruct unconstrained freehand data. The methods are assessed on freehand data sets and compared to reconstructions obtained with a position sensor.

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