October 2014
How to Build a Good Light Field Camera
Computational Photography TalkThis talk by Chia-Kai Liang, PhD (Architect, Computational Photography at Lytro, Inc.) will describe a light transport framework for understanding the fundamental limits of light field camera resolution. The new framework includes many factors that were not included in existing models. For example, he shows that the 4D spatial-angular sensitivity profile of the photosensor must be considered in the performance analysis. The new framework is used to make many predictions that are closer to the observations and contradict…
Find out more »March 2016
Image and Video Forensics Through Content Analysis
James F. O’Brien, Distinguished ACM SpeakerAbout the Talk Advances in computational photography, computer vision, and computer graphics allow for the creation of visually compelling photographic forgeries. Forged images have appeared in tabloid magazines, main-stream media outlets, political attacks, scientific journals, and the hoaxes that land in our email in-boxes. These doctored photographs are appearing with growing frequency and sophistication, and even experts cannot rely on visual inspection to distinguish authentic images from forgeries. Techniques in image forensics operate on the…
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