Generating an image that affords slant perception from stereo, without pictorial cues.

ABSTRACT: This paper describes an algorithm for generating a planar image that when tilted provides stereo cues to slant, without contamination from pictorial gradients. As the stimuli derived from this image are ultimately intended for use in studies of slant perception under magnification, a further requirement is that the generated image be suitable for high-definition printing or display on a monitor. A first stage generates an image consisting of overlapping edges with sufficient density that when zoomed, edges that nearly span the original scale are replaced with newly emergent content that leaves the visible edge statistics unchanged. A second stage reduces intensity clumping while preserving edges by enforcing a broad dynamic range across the image. Spectral analyses demonstrate that the low

SUBMITTER: Galeotti J 

PROVIDER: S-EPMC5526634 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature