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Spatio-temporal interpolation in depth. 1994

M Fahle, and E De Luca
Department of Neuro-ophthalmology, University Eye Clinic, Tübingen, Germany.

Spatio-temporal interpolation creates the impression of motion from a rapid sequence of stationary images by reconstructing the motion path in between the stations actually presented. Thresholds below the diameter of foveal photoreceptors have been obtained with two-dimensional spatio-temporal interpolation. We found that also three-dimensional interpolation, i.e. interpolation in depth, where information from motion detectors tuned to opposite directions in both eyes has to be combined, yields thresholds in the hyperacuity range. The results of parametric experiments favour the interpretation that interpolation occurs at a monocular stage of visual processing, rather than on a stereoscopic stage.

UI MeSH Term Description Entries
D009039 Motion Perception The real or apparent movement of objects through the visual field. Movement Perception,Perception, Motion,Perception, Movement
D011601 Psychophysics The science dealing with the correlation of the physical characteristics of a stimulus, e.g., frequency or intensity, with the response to the stimulus, in order to assess the psychologic factors involved in the relationship. Psychophysic
D003867 Depth Perception Perception of three-dimensionality. Stereopsis,Stereoscopic Vision,Depth Perceptions,Perception, Depth,Perceptions, Depth,Stereopses,Stereoscopic Visions,Vision, Stereoscopic,Visions, Stereoscopic
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012684 Sensory Thresholds The minimum amount of stimulus energy necessary to elicit a sensory response. Sensory Threshold,Threshold, Sensory,Thresholds, Sensory
D013028 Space Perception The awareness of the spatial properties of objects; includes physical space. Perception, Space,Perceptions, Space,Space Perceptions
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor
D014792 Visual Acuity Clarity or sharpness of OCULAR VISION or the ability of the eye to see fine details. Visual acuity depends on the functions of RETINA, neuronal transmission, and the interpretative ability of the brain. Normal visual acuity is expressed as 20/20 indicating that one can see at 20 feet what should normally be seen at that distance. Visual acuity can also be influenced by brightness, color, and contrast. Acuities, Visual,Acuity, Visual,Visual Acuities
D015348 Vision, Binocular The blending of separate images seen by each eye into one composite image. Binocular Vision

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