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Proceedings Paper

A log-Euclidean and total variation based variational framework for computational sonography
Author(s): Jyotirmoy Banerjee; Premal A. Patel; Fred Ushakov; Donald Peebles; Jan Deprest; Sébastien Ourselin; David Hawkes; Tom Vercauteren
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Paper Abstract

We propose a spatial compounding technique and variational framework to improve 3D ultrasound image quality by compositing multiple ultrasound volumes acquired from different probe orientations. In the composite volume, instead of intensity values, we estimate a tensor at every voxel. The resultant tensor image encapsulates the directional information of the underlying imaging data and can be used to generate ultrasound volumes from arbitrary, potentially unseen, probe positions. Extending the work of Hennersperger et al.,1 we introduce a log-Euclidean framework to ensure that the tensors are positive-definite, eventually ensuring non-negative images. Additionally, we regularise the underpinning ill-posed variational problem while preserving edge information by relying on a total variation penalisation of the tensor field in the log domain. We present results on in vivo human data to show the efficacy of the approach.

Paper Details

Date Published: 2 March 2018
PDF: 6 pages
Proc. SPIE 10574, Medical Imaging 2018: Image Processing, 105740D (2 March 2018); doi: 10.1117/12.2292501
Show Author Affiliations
Jyotirmoy Banerjee, Univ. College London (United Kingdom)
Premal A. Patel, Univ. College London (United Kingdom)
Fred Ushakov, Univ. College London Hospital (United Kingdom)
Donald Peebles, Univ. College London Hospital (United Kingdom)
Jan Deprest, Univ. College London (United Kingdom)
Katholieke Univ. Leuven (Belgium)
Sébastien Ourselin, Univ. College London (United Kingdom)
David Hawkes, Univ. College London (United Kingdom)
Tom Vercauteren, Univ. College London (United Kingdom)
Katholieke Univ. Leuven (Belgium)

Published in SPIE Proceedings Vol. 10574:
Medical Imaging 2018: Image Processing
Elsa D. Angelini; Bennett A. Landman, Editor(s)

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