Subjective contours and apparent depth: A direct test
نویسندگان
چکیده
منابع مشابه
Subjective contours and apparent depth: a direct test.
however, explains such secondary effects associated with subjective contours as changes in brightness or in apparent depth. In contradistinction to the physiological explanations are a number of hypotheses that are primarily cognitive in nature. Kanizsa (1976) maintains that illusory contours are merely an unusually strong example of the Gestalt principle of closure. Other theorists suggest, ra...
متن کاملSubjective contours and apparent depth.
Schumann (1904) investigated the physical parameters which affect the perception of contour. He reported that for a contour to be perceived the prerequisite was some relatively abrupt local change in brightness or color. In the course of these investigations, however, he noted that under certain favorable conditions contours could be made to appear in areas of the visual field where the physica...
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We report that color and depth, as well as form, are recovered in tandem with seeing motion. The stimulus, consisting of multiple frames, was designed to keep all aspects, except color, of the binocular images identical. In still view, rivalry occurs due to the unmatched color of some corresponding image elements in the two eyes. When frames--created by translating color assignments and nothing...
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Ullman proposes that subjective contc,.us consist of two circles which meet smoothly and which arc tangential to the contrast boundaries from which they originate. The foim of the solution derives from a number of premises, one of which Ullman calls “the locality hypothesis”. ‘Ihis is “based in part on cxpcrimcntal obscrvntions, and partly on a theoretical consideration” ([I 51 ~2). ‘I’hc “cxpc...
متن کاملContours from Apparent Motion: a Computational Theory
Human vision readily constructs subjective contours from displays of kinetic occlusion and color from motion. To construct these contours from kinetic displays it is argued that human vision must solve the point-aperture problem, a problem more general and more difficult than the well-known aperture problem. In the aperture problem one is given a contour and its orthogonal velocity field, and m...
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ژورنال
عنوان ژورنال: Perception & Psychophysics
سال: 1983
ISSN: 0031-5117,1532-5962
DOI: 10.3758/bf03202840