主 题: Motion compensation in model-based image reconstruction
报告人: Prof. Jeffrey Fessler (University of Michigan in Ann Arbor)
时 间: 2008-11-11 上午 9:00
地 点: 理科一号楼 1570
Image reconstruction of moving objects (such as breathing
patients) is challenging due to inconsistencies between measurements
acquired at different phases of the motion. Compensating for motion
during image reconstruction requires tools similar to those used in
nonrigid image registration. In the first part of this talk I will
discuss an approach for nonrigid image registration based on B-spline
deformation models. The key feature of this approach is that it
provides a simple way to ensure that the estimated deformation is
invertible (diffeomorphic). This constraint is important for the
registration to be physically plausible. In the second part of the talk
I will describe a couple of different approaches for using this type of
image registration tool in the context of image reconstruction of moving
objects.
About Prof. Jeffrey Fessler: Jeff Fessler received the BSEE degree from
Purdue University in 1985, the MSEE degree from Stanford University in
1986, and the M.S. degree in Statistics from Stanford University in
1989. From 1985 to 1988 he was a National Science Foundation Graduate
Fellow at Stanford, where he earned a Ph.D. in electrical engineering in
1990. He has worked at the University of Michigan since then. From 1991
to 1992 he was a Department of Energy Alexander Hollaender Post-Doctoral
Fellow in the Division of Nuclear Medicine. From 1993 to 1995 he was an
Assistant Professor in Nuclear Medicine and the Bioengineering Program.
He is now a Professor in the Departments of Electrical Engineering and
Computer Science, Radiology, and Biomedical Engineering. He became a
Fellow of the IEEE in 2006, for contributions to the theory and practice
of image reconstruction. He received the Francois Erbsmann award for his
IPMI93 presentation. He serves as an associate editor for IEEE
Transactions on Medical Imaging and is a past associate editor for the
IEEE Transactions on Image Processing and the IEEE Signal Processing
Letters. He was co-chair of the 1997 SPIE conference on Image
Reconstruction and Restoration, technical program co-chair of the 2002
IEEE International Symposium on Biomedical Imaging (ISBI), and general
chair of ISBI 2007. His research interests are in statistical aspects of
imaging problems, and he has supervised doctoral research in PET, SPECT,
X-ray CT, MRI, and optical imaging problems.
(more information can be found at
http://www.eecs.umich.edu/~fessler/)
