Computer Science Department News

The Computer Science Department will be hosting a colloquium on Friday, October 22, 2010 in the E&CS Building first floor auditorium.

The following is a schedule and topic listing:
Friday October 22, 2010 at 10:30am
Xenios Papademitris, Yale Medical School
Topic:
Nonparameteric vessel detection with applications to segmentation, registration and visualization of vascular images
Abstract:
I will describe our nonparametric method* for the detection of vascular structures. The major weakness of most existing methods for vessel detection/segmentation is the assumption that at each voxel there exists no more than one cylindrical structure -- an assumption that is violated at vessel branching points. Our proposed method uses a polar parameterization of the local intensity to get around this problem and achieves improved performance over standard methods. I will present results on both synthetic 2D images and 3D MRA animal vascular images. In addition, I will discuss more recent extensions of this work for multiscale vessel detection, non-rigid registration of vascular images, and vascular visualization.
* Qian et al, 'A nonparametric vessel detection method for complex vascular structures,' Medical Image Analysis, 13(1):49--61, 2009