TY  - GEN
AV  - public
Y1  - 2018/01/01/
TI  - Photoacoustic image reconstruction in Bayesian framework
N1  - This version is the version of record. For information on re-use, please refer to the publisher?s terms and conditions.
SN  - 1605-7422
PB  - SPIE
UR  - https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10494/2288163/Photoacoustic-image-reconstruction-in-Bayesian-framework/10.1117/12.2288163.full?SSO=1
ID  - discovery10050439
N2  - The photoacoustic image reconstruction problem (inverse problem) is to estimate an initial acoustic pressure distribution from measurements of ultrasound waves generated within an object due to optical excitation with a short light pulse. In this work, the recently suggested Bayesian approach to photoacoustic tomography is extended to three dimensions and an iterative matrix-free method for the solution of the problem is described. Image reconstruction is investigated with numerical simulations and experimental data. The use of different prior information and noise models in different sensor geometries, including a limited-view setup, is investigated. The results show that the Bayesian approach can produce accurate estimates of the initial pressure distribution even in a limited-view setup provided that prior information and the noise have been properly modelled.
KW  - photoacoustic tomography
KW  -  inverse problems
KW  -  Bayesian methods
T3  - PROCEEDINGS SPIE BIOS
A1  - Tick, J
A1  - Pulkkinen, A
A1  - Lucka, F
A1  - Ellwood, R
A1  - Cox, BT
A1  - Arridge, SR
A1  - Tarvainen, T
CY  - San Francisco, California, United States
ER  -