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DTSTART;TZID=America/New_York:20190221T110000
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SUMMARY:ESE Seminar: "Physics-Driven Sensing and Processing: From Computational Periscopy to Particle Beam Microscopy"
DESCRIPTION:In many areas of science and engineering\, novel signal acquisition methods allow unprecedented access to physical measurements. From digital cameras to microscopes and nano-scale biosensors\, the data generated are shaped by both the underlying physics of the phenomena and characteristics of the acquisition device. Meanwhile\, in many practical scenarios\, the useful signals are remarkably weak\, the measurements sparse\, or even the acquisition process itself may damage the observed sample. These realities therefore necessitate the development of techniques that combine signal processing with physics-driven modelling to transcend current capabilities and enable\, for instance: imaging of hidden scenes (or computational periscopy)\, the algebraic inversion of physical fields\, and the reduction of sample damage in particle beam microscopy.\nThis concept of combining physics with signal processing will be the main theme of my talk. First\, I will show that computational periscopy with ordinary digital cameras can be made possible by judiciously exploiting the physics of light transport to analyze subtle shadows\, in a photograph of a visible surface. Second\, I will briefly present an algebraic inversion method for fields constrained by partial differential equations and highlight its application to load-balancing in processors. Finally\, by developing a detailed model and analysis for particle beam microscopy\, I will show how introducing time-resolution into the acquisition process can significantly reduce beam dose\, and sample damage\, without compromising on imaging quality.
URL:https://seasevents.nmsdev7.com/event/ese-seminar-physics-driven-sensing-and-processing-from-computational-periscopy-to-particle-beam-microscopy/
LOCATION:Room 337\, Towne Building\, 220 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
ORGANIZER;CN="Electrical and Systems Engineering":MAILTO:eseevents@seas.upenn.edu
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