01:830:305 Lecture Notes - Lecture 3: Perceptual Learning, Subjective Constancy, Stereopsis
3 Nov 2016
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Document Summary
No computers have anything close to the perceptual abilities of a 5-year old. Retina is made up of light-sensitive cells that turn photons into electrical signals that can be processed by the brain. Way that the perceptual system uses simplifying rules to process information quickly. We need to know how the objects are acting. Perceptual system needs to deliver info in a way that relevant knowledge from memory can make contact with it. Low-level vision involves extracting preliminary information form the pattern of light that hits the retina. High-level vision is concerned with the perception of larger-scale elements of the world like whole objects or faces. Extract useful information that will allow people to interact with the environment. The sensitivity to goals may help constrain the way info about the visual world is interpreted. Some things are said to be detectable on a basis of low spatial frequency information.
