Fast total focusing method for ultrasonic imaging

Fast total focusing method for ultrasonic imaging

This work deals with advanced and fast imaging techniques using phased array probes for non destructive evaluation or medical imaging. These methods employ a large amount of summations in order to focus at each pixel of the reconstruction image, which often represent a prohibitive computational cost...

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Bibliographic Details
Published in:2015 IEEE International Ultrasonics Symposium (IUS) pp. 1 - 2
Main Authors: Carcreff, Ewen, Braconnier, Dominique, Dao, Gavin
Format: Conference Proceeding
Language:English
Published: IEEE 01-10-2015
Subjects:
Acoustics
Aluminum
Arrays
Focusing
Graphics processing units
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Summary:This work deals with advanced and fast imaging techniques using phased array probes for non destructive evaluation or medical imaging. These methods employ a large amount of summations in order to focus at each pixel of the reconstruction image, which often represent a prohibitive computational cost. We present two acceleration methods, i.e. GPU computation and a migration approach. The GPU computing uses massively parallel computations. The migration approach works in the wavenumber domain and permits a significant improvement in terms of image quality. In this paper, we demonstrate the benefits of these techniques with experimental data captured from an aluminum block containing artificial flaws.
DOI:10.1109/ULTSYM.2015.0441