Temporal dynamics of stereo correspondence bi-stability

Temporal dynamics of stereo correspondence bi-stability

Periodic stereoscopic stimuli offer multiple viable solutions to the stereo correspondence problem. When viewing such stimuli for prolonged periods of time, observers continually switch their perceptual state between alternative correspondence solutions. We examine the temporal dynamics of this correspondence bi-stability. Participants were presented with an ambiguous stereogram comprised of re...

Multispectral Stereo Image Correspondence

This paper presents a novel multispectral stereo image correspondence approach. It is evaluated using a stereo rig constructed with a visible spectrum camera and a long wave infrared spectrum camera. The novelty of the proposed approach lies on the usage of Hough space as a correspondence search domain. In this way it avoids searching for correspondence in the original multispectral image domai...

Stereo Correspondence Using Moment Invariants

Stereo correspondence using segment connectivity

This paper presents a method to search for stereo correspondence based on the connectivity of segments. The data structure is defined by boundary representation. The free curve can be treated by this data structure not as a straight line approximation, but as a curved line. Some candidates for correspondence pairs consist of two segments in left and right images under epipolar condition. The co...

Voluntary control and the dynamics of perceptual bi-stability

Voluntary control and conscious perception seem to be related: when we are confronted with ambiguous images we are in some cases and to some extent able to voluntarily select a percept. However, to date voluntary control has not been used in neurophysiological studies on the correlates of conscious perception, presumably because the dynamic of perceptual reversals was not suitable. We exposed t...