•   When: Friday, September 23, 2016 from 03:00 PM to 04:00 PM
•   Speakers: Dr. Jack Brassil, Dept. of Computer Science, Princeton University (on leave at NSF CISE/CNS)
•   Location: Research Hall, Room 163
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Abstract

A new generation of smartphone accessories are emerging to support 2-d and 3-d printing and model creation. These mobile, handheld devices require continuous self-location with position accuracy approaching 0.001 inch, well beyond the capabilities of commercial, consumer-grade wireless positioning technologies. We consider the problem of accurately tracking the motion of a handheld device that provides freehand, high-resolution image `drawing' while being swiped across a fixed planar surface. We review the capabilities and limitations of existing short-range localization technologies, including optical navigation sensors, ultrasonic positioning devices, and Inertial Measurement Units (IMU). We describe the testing apparati we constructed to establish the ground truth position of a device. We show how combining the complementary capabilities of these sensors can accurately locate a handheld device, potentially enabling a new class of smartphone imaging peripherals and applications. *Joint work with S. M. Iftekharul Alam

Speakers Bio

Jack Brassil received the B.S. degree from the Polytechnic Institute of New York, the M.Eng. degree from Cornell University, and the Ph.D. degree from the University of California, San Diego, all in electrical engineering. Dr. Brassil is currently a Senior Scholar (on leave) in the Department of Computer Science at Princeton University. He is currently serving as a Program Director at the National Science Foundation in Arlington, VA. Previously he was a Distinguished Technologist and Program Manager at HP Laboratories. At HP he managed a research team investigating mobile computing systems, internet streaming media, content distribution architectures, and communication networks and protocols, with frequent collaboration with startups, universities and industrial research partners. Before joining HP he held multiple research positions at Bell Laboratories in Murray Hill and Holmdel, NJ. Dr. Brassil is an IEEE Fellow, a member of the IEEE Communications Society, a member of the ACM, and a member of ACM SIGCOMM.