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Unformatted text preview: 1 Lecture 4: Low-level Perception Fall 2007 Prof. Lombrozo Overview of today’s class: 1. Perception at the computational level 2. Depth perception 3. Perceptual constancies 4. Perceptual organization Reminders: Sections start this Thurs! Assignment 1 due next Wed! 4.2 Visual perception • Edge detection : Where are the boundaries? • Localization : Where is it? • Depth : How far away is it? • Size : How big is it? • Motion : Is it moving? Where? How fast? • Object recognition : What is it? Who is it? • Face recognition : Who is it? 4.3 Organization of vision Low-level vision Edge detection Color Spatial localization Mid-level vision Object features Fig/ground segmentation Perceptual organization High-level vision Object recognition Face recognition Scene recognition “Einstein” 2 4.4 Perception at the computational level The goal : to infer the structure of the external world from the information available to our senses....
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- Fall '09
- Depth perception, actual size, Roger Shepard, Binocular Depth Cues, reliable cues