VASC Seminar Announcement
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Date: Monday, 10/18/99
Time: 3:30pm
Place: Smith Hall 2nd Floor Common Area

Speaker:  Simon Baker
          CMU Robotics Institute
          http://www.cs.cmu.edu/~simonb

Title: Hallucinating Your Face for the NSA

Abstract:

Faces often appear very small in surveillance imagery because of the 
wide fields of view that are typically used and the relatively large 
distance between the cameras and the scene. For tasks such as face 
recognition, resolution enhancement techniques are therefore generally 
needed. Although numerous resolution enhancement algorithms have been 
proposed in the literature, most of them are limited by the fact that 
they make weak, if any, assumptions about the scene. We propose an 
algorithm to learn a prior on the spatial distribution of the image 
gradient for frontal images of faces. We proceed to show how such a 
prior can be incorporated into a resolution enhancement algorithm to 
yield 4-8 fold improvements in resolution (i.e. 16-64 times as many 
pixels). The additional pixels are, in effect, hallucinated.