PS102 Lecture Notes - Lecture 5: Binocular Disparity, Parallax, Retina
Document Summary
Image on the retina is 2 dimensional: but we live in a 3 dimensional world. Monocular depth cues: visual depth cues perceived by one eye alone. Can distinguish bulges from indentations by the shadows they cast: motion parallax when riding in a moving vehicle look out the window, objects seen appear to move in opposite directions. Objects closest to you appear to be moving faster than those at a distance. Objects very far away, such as the moon and the sun, appear to move in. Binocular depth cues the same direction as the viewer: depth perceived with 2 eyes, visual depth cues that depend on both eyes working together, have two eyes for a reason gives exquisite , based on binocular disparity. Hold finger up in front of your face look with one eye closed and then the other closed: feature detectors analyze differenced, convergence. Feedback from ocular muscles when focusing on something distant and then close.
