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Large area and high precision image registration and matching for roll to roll printing and human health monitoring

25 Oct
Friday, 10/25/2019 10:00am to 11:00am
Computer Science Building, Room 140
Speaker:  Xian Du

As of recent, large area and precision imaging is becoming popular with the commercially available fast speed cameras. Typical applications of large imaging include the real-time inspection of roll to roll printing processes and skin health monitoring. The first example is about the inspection of micro- and nano-scale print patterns across meter wide surface, pattern analysis for printing speed of up to meter per second, full-field deformation measurement and failure control. The second example is about monitoring the micro-scale features on human skin for health diagnosis.  In these examples, large area and high precision image registration and matching are needed for measuring the change of printed patterns or human skin structures. In this seminar, Dr. Xian Du will present two registration and matching algorithms that were designed for large area and high precision patterns. The algorithms both work from global registration toward local matching, while they are based on different hypothesizes. Dr. Xian Du will demonstrate the successful applications and evaluations of these algorithms in roll to roll printing processes and skin health monitoring.

Dr. Xian Du is an assistant professor in the Department of Mechanical & Industrial Engineering and the Institute for Applied Life Sciences at the University of Massachusetts (UMass), Amherst. He is also an adjunct faculty of the College of Information and Computer Sciences. His group work on the innovation of high-resolution, large-area and fast-speed sensing, machine vision and pattern recognition technologies for roll to roll flexible electronics printing process and personalized health monitoring devices.

Before joining UMass, Dr. Xian Du was a research scientist in the Department of Mechanical Engineering at the Massachusetts Institute of Technology (MIT).  During his research at MIT, Dr. Xian Du invented a concentric circular trajectory scanning and super-resolution system, and image matching methods for the inspection of roll to roll manufacturing over meter-scale web and human health monitoring.  Dr. Xian Du earned his doctoral degree in the program of Innovation of Manufacturing Systems and Technology from the Singapore-MIT Alliance at the National University of Singapore in 2007. He has extensive research experience and specialization in machine vision and pattern recognition in industry and academia. When he worked on the optimization of color print process control for his Ph.D. research, he led a small R&D group to develop the color control plug-ins for the Windows system for printers for Kikuze Solutions Pte. Ltd. After graduation, he joined the CREATIS lab in France as a CNRS Postdoctoral Fellow where he developed a 3-D segmentation algorithm to quantify the knee cartilage thickness for osteoarthritis drug development.

Recently, Dr. Xian Du was awarded grants from the National Science Foundation to support his research for inline metrology and control technology for roll to roll printing. 

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