Perceptual artifacts in random-dot stereograms.
Unrestricted positioning of elements in random-dot stereograms with steep disparity gradients, such as stereo-transparent stereograms depicting overlaid surfaces, can produce perceptual artifacts similar to disparity noise. It is shown that these artifacts hinder the segregation of overlaid surfaces in transparent random-dot stereograms and thus disrupt the perception of stereotransparency. This effect is intensified with increases in the overall element density of the stimuli. We outline the origin of this phenomenon and discuss techniques to prevent such artifacts.
Tsirlin
Inna
I
Centre for Vision Research, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada. itsirlin@yorku.ca
Wilcox
Laurie M
LM
Allison
Robert S
RS
D016477:Artifacts; D003867:Depth Perception / Q000502:physiology*; D006801:Humans; D010364:Pattern Recognition, Visual / Q000502:physiology; D010469:Perceptual Distortion / Q000502:physiology*; D010775:Photic Stimulation / Q000379:methods; D015357:Vision Disparity