PS263 Study Guide - Midterm Guide: Binocular Disparity, Sine Wave, Horopter
Document Summary
Cues: pieces of information available in external world. Accommodation: lens changes shape to focus on nearby objects. Convergence: eyes move inward so image of nearby object falls on both fo(cid:448)ea"s (muscles moving the eyes to point inwards so that the i(cid:373)age of o(cid:271)je(cid:272)t (cid:374)ear(cid:271)y falls o(cid:374) (cid:271)oth fo(cid:448)ea"s) Occlusion: one object is front of another (nearby object blocks view of more distant object) [include accommodation, pictoral cues, and movement based cues] Motion parallax: nearby objects move faster than farther-away objects. Deletion and accretion: closer objects move father objects gets occluded (deletion) on one side, and mid. Binocular disparity: the difference between the image on the left retina and the image on the right retina. Stereopsis: impression of depth, if 2 images correspond to physically plausible 3d scene. Physiology of depth perception: neurons that respond to absolute disparity (specific degrees of disparity)
