Practical Acquisition and Rendering of Common Spatially Varying Holographic Surfaces
This talk will cover two novel methods to capture and render the appearance of commonly found spatially varying holographic surfaces. Such surfaces are made of one dimensional diffraction gratings that vary in orientations and periodicities over a sample to create impressive visual effects. First method is able to recover the orientation and periodicity maps simply using a flash illumination, a DSLR camera and the tile nature of the maps. Second method involves an elaborate imaging setup based on light polarization principles and recovers arbitrary parameter maps for samples of limited size. Real-time renderings under environmental illumination using the measured maps that match the observed appearances will also be presented.
Dr. Daljit Singh Dhillon in an assistant professor with the Visual Computing division at School of Computing, Clemson University. His primary research interest lies in modeling material appearances and surface geometric phenomena. He has a keen interest in inter-disciplinary research involving visual computing. Prior to joining Clemson, he was a post-doc at Realistic Graphics and Imaging Group, Imperial College London (research associate from 2017-18 and Swiss-NSF early postdoc fellow 2016-2017). He obtained his PhD in Computer Science from University of Bern, Switzerland (2011-2015) with an interdisciplinary research work: ‘On Modeling and Simulating Reptile Skin Coloration’. Dr. Dhillon obtained his M.Sc. (Engg.) degree with a research thesis on structured-light 3D scanning systems, from Indian Institute of Science (2007-2010) and a bachelor degree in computer engineering from University of Mumbai (1995-1999). Apart from an academic research background in computer graphics and vision, he has eight years of industrial experience in software development (1999-2007), including research in video encoders and speaker verification using Hidden Markov Models.
Friday, January 31 at 2:30pm to 3:30pm
McAdams Hall, 114
821 McMillan Rd., Clemson, SC 29634, USA