title   
  

Sparsity-driven sparse-aperture ultrasound imaging

Çetin, Müjdat (2006) Sparsity-driven sparse-aperture ultrasound imaging. In: IEEE International Conference on Acoustics, Speech, and Signal Processing, Toulouse, France

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Official URL: http://ieeexplore.ieee.org/iel5/11024/34758/01660286.pdf?isnumber=34758&arnumber=1660286

Abstract

We propose an image formation algorithm for ultrasound imaging based on sparsity-driven regularization functionals. We consider data collected by synthetic transducer arrays, with the primary motivating application being nondestructive evaluation. Our framework involves the use of a physical optics-based forward model of the observation process; the formulation of an optimization problem for image formation; and the solution of that problem through efficient numerical algorithms. Our sparsity-driven, model-based approach achieves the preservation of physical features while suppressing spurious artifacts. It also provides robust reconstructions in the case of sparse observation apertures. We demonstrate the effectiveness of our imaging strategy on real ultrasound data.

Item Type:Papers in Conference Proceedings
Subjects:Q Science > QA Mathematics
ID Code:1202
Deposited By:Müjdat Çetin
Deposited On:19 Dec 2006 02:00
Last Modified:23 Feb 2010 22:06

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