RI | Seminar | March 23, 2007

Robotics Institute Seminar, March 23, 2007
Time and Place | Seminar Abstract | Speaker Biography | Speaker Appointments

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Exposing Digital Forgeries from Inconsistencies in Lighting

Hany Farid

Professor, Computer Science Department

Dartmouth College

Time and Place

Mauldin Auditorium (NSH 1305)
Refreshments 3:15 pm
Talk 3:30 pm

Abstract

With the advent of high-resolution digital cameras, powerful personal computers and sophisticated photo-editing software, the manipulation of digital images is becoming more common. To this end, we have been developing a suite of tools to detect tampering in digital images. I will discuss two related techniques for exposing forgeries from inconsistencies in lighting. In each case we show how to estimate the direction to a light source from only a single image: inconsistencies across the image are then used as evidence of tampering.
[Joint work with Kimo Johnson]

Speaker Biography

Hany Farid received his undergraduate degree in Computer Science and Applied Mathematics from the University of Rochester in 1989. He received his Ph.D. in Computer Science from the University of Pennsylvania in 1997. Following a two year post-doctoral position in Brain and Cognitive Sciences at MIT, he joined the Dartmouth faculty in 1999. Hany is a Professor of Computer Science and Associate Chair. Hany is the recipient of an NSF CAREER award, a Sloan Fellowship and a Guggenheim Fellowship.

From working with federal law enforcement agencies on digital forensics, to the digital reconstruction of Ancient Egyptian tombs, Hany works and plays with digital media at the crossroads of computer science, engineering, mathematics, optics, and psychology.

Speaker Appointments

For appointments, please contact Janice Brochetti (janiceb@cs.cmu.edu)

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The Robotics Institute is part of the School of Computer Science, Carnegie Mellon University.