BCS 151 Lecture Notes - Lecture 11: Optical Flow, Biological Motion, Institute For Operations Research And The Management Sciences
14 Dec 2016
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Document Summary
There are 30+ motion responsive regions of the human brain. Without motion, there is no vision: retinal image is constantly moving or jittering, sacades & microsacades, e. g. Eye-tracking experiments: if retinal image is stabilized, vision fades away in seconds! Motion breaks even perfect camouflage: we are extremely sensitive to motion deduction, links to figure-ground segregation. Perception of 3d layout in the world: perception of depth can also be achieved by two 2d images taken from slightly different positions that are presented in rapid succession (motion) Two 2d images taken from slightly different positions. Motion parallax: the direction of objects in the environment depends on their relation to the observer. Perceiving actions and intentions of other biological creatures: we are pre-disposed to detect biological motion, even in abstract dots on a black background. Guiding balance and posture: links to the vestibular system, the optic flow pattern is used to maintain balance while standing upright, motion sickness.
