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PeopleFinder

PeopleFinder. Rhian Davies cs533. Introduction. Motivation Problem Approach Current state Perceptual test. Motivation. Aphasia: involves language problems is neurogenic is acquired is not a problem of sensation of intellect. Problem.

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PeopleFinder

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  1. PeopleFinder Rhian Davies cs533

  2. Introduction • Motivation • Problem • Approach • Current state • Perceptual test

  3. Motivation • Aphasia: • involves language problems • is neurogenic • is acquired • is not a problem of sensation of intellect

  4. Problem • How can a set of images of faces be searched quickly? • No reliance on text. • Possible memory deficits (hierarchies cannot be too deep). • Possibility that categories are disrupted.

  5. Approach • PhotoMesa approach • http://www.cs.umd.edu/hcil/photomesa/ • Perceptual system’s ability to recognize an image after a fraction of a second exposure. • Allan Paivio and Kal Csapo. Concrete image and verbal memory codes. Journal of Experimental Psychology, 80(2):279--285, 1969.

  6. PhotoMesa

  7. Current State • Toolkit: Piccolo • PhotoMesa approach, combined with flashing image (what’s optimal). • Scaling on the fly. • Staying within boundaries. • Categorization. • Brain damage and seizures.

  8. Perceptual Test • Can faces be identified when flashed at a rate of 16 images per second?

  9. Conclusion • PeopleFinder: • a way to quickly find a face in a database of images using zooming and flashing.

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