A real-time ultrasonic field mapping system using a Fabry Perot single pixel camera for 3D photoacoustic imaging

被引：8

作者：

Huynh, Nam ^{[1
]}

Zhang, Edward ^{[1
]}

Betcke, Marta ^{[2
]}

Arridge, Simon ^{[2
]}

Beard, Paul ^{[1
]}

Cox, Ben ^{[1
]}

机构：

[1] UCL, Dept Med Phys & Bioengn, London WC1E 6BT, England

[2] UCL, Dept Comp Sci, London WC1E 6BT, England

来源：

PHOTONS PLUS ULTRASOUND: IMAGING AND SENSING 2015 | 2015年 / 9323卷

关键词：

Photoacoustic imaging; digital micromirror array; ultrasound field mapping; real time; compressed sensing; POLYMER-FILM; SENSOR; RECOVERY;

D O I：

10.1117/12.2081869

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A system for dynamic mapping of broadband ultrasound fields has been designed, with high frame rate photoacoustic imaging in mind. A Fabry-Perot 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-thefly reconstructions. The ability of the system to obtain photocacoustic images with data compressions as low as 10% was also demonstrated.

引用

页数：7

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