Speaker: Mr. Prakash Manandhar
Senior Ultrasonics Research & Development Engineer
Integra LifeSciences, Inc.
Topic: “COMBINING MULTIPLE ALGORITHMS FOR ROBUST SEGMENTATION OF INTRAVASCULAR ULTRASOUND (IVUS) IMAGES”
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.
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.