A method for the real-time rendering of formless dot field structure-from-motion stimuli.

ABSTRACT: The perception of visual motion relies on different computations and different neural substrates than the perception of static form. It is therefore useful to have psychophysical stimuli that carry mostly or entirely motion information, conveying little or nothing about form in any single frame. Structure-from-motion stimuli can sometimes achieve this dissociation, with some examples in studies of biological motion using point-light walkers. It is, however, generally not trivial to provide motion information without also providing static form information. The problem becomes more computationally difficult when the structures and the motions in question are complex. Here we present a technique by which an animated three-dimensional scene can be rendered in real-time as a pattern of dots. Ea

SUBMITTER: Singer JM 

PROVIDER: S-EPMC3046877 | biostudies-literature | 2008 May

REPOSITORIES: biostudies-literature