Computer Science Department News
There will be a Colloquium on Friday February 10 at 3:00 PM by Dr. Scott T Acton
FRIDAY FEBRUARY 10 KAUFMAN HALL, ROOM 224TIME: 3:00 PMThis Seminar is sponsored by Electrical and Computer Engineering, butcounts as a Colloquium for CS students. Please present your attendanceforms to Dr. Gonzalez after the lecture, near the stage, for signing.Department of Electrical & Computer Engineering
Old Dominion University
Electrical Engineering
Attacks Biology with Image Analysis by Dr. Scott T. Acton
Department of Electrical and Computer Engineering
University of Virginia
Charlottesville, VA
Friday, February 10, 2012
3:00 p.m. KH 224
Host: Dr. Khan IftekharuddinThe first part of the talk describes our work in tracking leukocytes (whiteblood cells) in vivo. Active contour methods are highlighted. Specifically, thePoisson inverse gradient method of contour/surface initialization and thevector field convolution method of contour evolution are presented. Results inleukocyte studies, as well as anatomical studies show the efficacy of theseapproaches.The second portion of talk depicts ongoing work in neural image analysis. Theknowledge of neuron structure is a central part of the understanding of thebrain. Towards this end, development of a library describing the shapes andconnectivity of neurons is necessary. Such an atlas is called the neurome.Construction of this library for a range of organisms will require automatedimage analysis.The talk describes our proposed automatic segmentation method, Tree2Tree, andour proposed neuron matching method, Path2Path. Tree2Tree is a graph basedalgorithm that extracts the complex shape of the neuron from 3D intensityimages of neurons. The challenge lies in computing a consistent estimate of theneuronal branching and connectivity from the low contrast images, characterizedby ambiguous edge information and inconsistent brightness patterns. Imageprocessing and analysis methods associated with Tree2Tree, and the path-basedmatching of Path2Path, will be described. Preliminary results show that theTree2Tree algorithm segments the neuron with high sensitivity and accuracy andthat Path2Path may hold promise in matching neurons based on morphology,hierarchy and spatial position.More details at http://www.ece.odu.eduhttp://webspace.cs.odu.edu/~ibl/colloq.htmlColloquium Requirements for Graduate Students:http://webspace.cs.odu.edu/~ibl/colloqreq.htmODU C S Grad Students should automatically* receive these announcementsAnyone else wishing to receive them should send mail to ibl@cs.odu.edu*CS grad students not receiving these announcements are probablynot in the 'grad' mail alias. They should send mail toasking to be included in the alias.
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