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Proceedings Paper

A real-time ultrasonic field mapping system using a Fabry Pérot single pixel camera for 3D photoacoustic imaging
Author(s): Nam Huynh; Edward Zhang; Marta Betcke; Simon R. Arridge; Paul Beard; Ben Cox
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Paper Abstract

A system for dynamic mapping of broadband ultrasound fields has been designed, with high frame rate photoacoustic imaging in mind. A Fabry-Pérot interferometric ultrasound sensor was interrogated using a coherent light single-pixel camera. Scrambled Hadamard measurement patterns were used to sample the acoustic field at the sensor, and either a fast Hadamard transform or a compressed sensing reconstruction algorithm were used to recover the acoustic pressure data. Frame rates of 80 Hz were achieved for 32x32 images even though no specialist hardware was used for the on-the-fly reconstructions. The ability of the system to obtain photocacoustic images with data compressions as low as 10% was also demonstrated.

Paper Details

Date Published: 11 March 2015
PDF: 7 pages
Proc. SPIE 9323, Photons Plus Ultrasound: Imaging and Sensing 2015, 93231O (11 March 2015); doi: 10.1117/12.2081869
Show Author Affiliations
Nam Huynh, Univ. College London (United Kingdom)
Edward Zhang, Univ. College London (United Kingdom)
Marta Betcke, Univ. College London (United Kingdom)
Simon R. Arridge, Univ. College London (United Kingdom)
Paul Beard, Univ. College London (United Kingdom)
Ben Cox, Univ. College London (United Kingdom)


Published in SPIE Proceedings Vol. 9323:
Photons Plus Ultrasound: Imaging and Sensing 2015
Alexander A. Oraevsky; Lihong V. Wang, Editor(s)

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