University of Birmingham > Talks@bham > Optimisation and Numerical Analysis Seminars > Computational methods for photo-acoustic tomography

Computational methods for photo-acoustic tomography

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If you have a question about this talk, please contact Sergey Sergeev.

In photo-acoustic tomography, a laser is used to heat tissue which then rapidly expands creating acoustic waves which are measured by ultrasound sensors. From these data, reconstructions of the optical properties of the tissue can be made. This forward process consists of two distinct steps: the heating, and then the acoustic wave propagation, and when considering reconstruction algorithms it is possible to either combine these two steps together, or consider them separately. The talk will consist of two parts describing two different recent investigations we have made into algorithms for photo-acoustic tomography. First, I will describe work in which we use a multi-grid algorithm with total variation regularisation for the acoustic inversion step. Second I will describe our efforts to combine the acoustic and optical inversions. This talk is based on joint work with Ashkan Javaherian.

This talk is part of the Optimisation and Numerical Analysis Seminars series.

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