Title: Mathematical Modeling in (Medical) Computer Vision
Speaker: Dr. Gozde Unal.
Date/Time: 6th May,Wednesday at 13:40
Place: FENS L047
Abstract: In this seminar, I will present some recent work from my group’s research in medical computer vision.
I’ll start with a novel volumetric shape representation based on the screened Poisson partial differential equation and its low dimensional embeddings that we call SPEMs , which is applied to a nonrigid 3D shape retrieval problem. The second problem I’ll talk about is using high-order tensors in modelling of tree-like structures such as vascular trees in human brain and the heart. I’ll show how we embed the tensor in a 4D space rather than 3D in order to untangle the bifurcating (or even n-furcating) structures/branches in the data in a higher-dimensional space . The third problem I’ll present is on modeling the deformations of tumors in brain MRI, which is important for radio-therapy planning and follow-up assessment of the cancer disease. I will show how we estimate the deformation in brain images using a biomechanical model, and how it is used to calculate tumor response measures [3,4].
Bio: Dr. Gozde Unal received her BS degree from METU EE in 1996, her MS from Bilkent University EE in 1998, and her PhD in ECE with a minor in Mathematics from North Carolina State University, NC, USA, in 2002. She was a postdoctoral fellow at Georgia Institute of Technology between Aug 2002-2003. She worked as a research scientist at Siemens Corporate Research, Princeton, NJ, USA between 2003-2007. She then joined Sabancı University, Faculty of Engineering and Natural Sciences as a faculty member in Fall 2007, where she is currently an associate professor. Her research interests are in computer vision and medical image analysis. Particularly, her recent work was focused on mathematical solutions to segmentation, registration and modelling problems in neuroimaging and neuroscience. She was the recipient of L’Oreal Turkey’s Women Scientist Award in 2010 in Life Sciences. She received the Young Scientist Award (GEBİP) from TÜBA in 2010.