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University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > C4 - Introduction to computational inversion I

## C4 - Introduction to computational inversion IAdd to your list(s) Download to your calendar using vCal - Siltanen, S (Helsinki)
- Wednesday 27 July 2011, 09:45-10:30
- Seminar Room 1, Newton Institute.
If you have a question about this talk, please contact Mustapha Amrani. Inverse Problems Inverse problems arise from indirect measurements of physical quantities. Examples include recovering the internal structure of objects from boundary measurements, for example X-ray attenuation from projection images or electric conductivity distribution from current-to-voltage measurements at the boundary. A defining feature of inverse problems is “ill-posedness”, or extreme sensitivity to measurement and modeling errors: two quite different objects may produce almost exactly the same data. This is why specially regularized reconstruction methods are needed for the practical solution of inverse problems. This course explains how to detect ill-posedness in practical measurements and how to design noise-robust computational inversion algorithms. X-ray tomography is used as a guiding example, and Tikhonov regularization is the basic numerical methodology. Matlab software is provided for the participants to enable numerical experiments. This talk is part of the Isaac Newton Institute Seminar Series series. ## This talk is included in these lists:- All CMS events
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