For video footage from past you can visit the individual event pages, or go to our YouTube Channel

To filter by event category, click on the event category link in the table below or use the menu on the right.

List of Past Events

Shapes, Skeletons and Similarity

Erica Briscoe

Monday, April 23, 2007, 01:00pm - 02:00pm

Rutgers University, Department of Psychology

Copy to My Calendar (iCal) Download as iCal file
 

Shape categorization, by both human and machine, requires the ability to discern qualitatively critical information from a shape for internal representation and future comparative tasks, where both the part structure of objects (Biederman, 1985) and metric information (Basri et al., 1998) play a significant role. In this talk, I will discuss ongoing work that uses the MAP (maximum a priori) skeleton model devised by Feldman and Singh (2006) as a means of investigating human shape similarity. This work explores the idea that in visual shape categorization tasks, humans utilize aspects of natural shapes that correspond to those in a model where shape structure is represented as a mixture of generative and random factors. I´┐Żll show that such a model provides a robust framework for modeling shape similarity judgments for which other (non-generative) shape representation models are inadequate.Any background readings supplied by guest speakers can be found on the perceptual science website, at the following url: http://perceptualscience.rutgers.edu/?title=Calendar

Erica Briscoe