PS_Measurement_Theory_1 - 1 Approaches to Understanding...

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Unformatted text preview: 1 Approaches to Understanding Vision Natural tasks Natural scene statistics Anatomy Responses of individual neurons Responses of neural populations Perceptual/behavioral performance Mathematical and computational modeling 2 Important Visual Tasks Identification of objects and materials Navigation through the environment Prediction of motion trajectories Estimation of physical dimensions Object manipulation Visual communication Vision is very important for human survival. It involves many important and complex tasks. 3 Object Identification Task 4 Contour Completion Task Do contour elements intersecting an occluding surface belong to the same or different contour? A typical natural sub-task. 5 Contour Classification Task What is the physical source of a given contour? Another typical natural sub-task. Image contours can occur for a number of entirely different physical reasons. They can be the result of surface boundaries, surface markings or shading. There can be little doubt that many perceptual tasks depend critically upon identifying whether a contour is a surface boundary, a marking or a shadow. 6...
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This note was uploaded on 08/12/2008 for the course PSY 323P taught by Professor Geisler during the Spring '08 term at University of Texas at Austin.

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PS_Measurement_Theory_1 - 1 Approaches to Understanding...

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