Spring 2010, Thursdays, Milner 216, 4:00-4:50 PM

Date: April 1

"  Ultrasound modulated optical tomography "
  Moritz Allmaras  


Ultrasound modulated optical tomography (UOT) is a relatively recent optical imaging method that attempts to improved the severe ill-posedness of reconstructions in optical tomography of soft tissue. I will explain the setup and describe a mathematical model for the problem that is based on the diffusion approximation for light propagation in optically dense media. Computational experiments with numerical phantoms and a simple reconstruction scheme lead to surprisingly good images. A partial explanation for this is provided by a stability estimate for a linearized version of the model.The talk will be mostly self-contained and only use some basic facts about PDEs.