ECE Seminar Speaker: Mr. Prakash Manandhar

Date(s): 3/1/2013 10:00 AM - 3/1/201311:00 AM
Location: Textile's Building - Room 101E
Contact: Chi Hau Chen cchen@umassd.edu 508-999-8475


Speaker: Mr. Prakash Manandhar
Senior Ultrasonics Research & Development Engineer
Integra LifeSciences, Inc.

Topic: “COMBINING MULTIPLE ALGORITHMS FOR ROBUST SEGMENTATION OF INTRAVASCULAR ULTRASOUND (IVUS) IMAGES”

Abstract:
Like many other image segmentation problems, it is relatively easy to train a human to accurately perform IVUS segmentation, but it is very difficult to achieve acceptable segmentation accuracy levels with completely automatic algorithms. Often a given algorithm is capable of accurate segmentation in a small subset of the full set of test images, and another algorithm is capable in another small subset. To improve overall accuracy, we have devised a scheme where an algorithm performs segmentation and at the same time computes a confidence level of its own segmentation. The confidence level is biased such that false positives are avoided. A meta-algorithm is then used to apply one or more algorithms from a library to choose the best segmentation estimate and improve overall accuracy. In this presentation, we describe our recent progress in combining multiple algorithms for robust segmentation of IVUS images.

Biography:
Mr. Manandhar is a Senior Ultrasonics Research & Development Engineer, with Integra LifeSciences, Inc. He is also a Ph.D. student of the UMass Dartmouth Bioengineering Graduate Program.