‘Capture’ of stereopsis by illusory contours
نویسندگان
چکیده
منابع مشابه
Three-dimensionally slanted illusory contours capture stereopsis
In stereo capture a stereogram of a crossed illusory figure pulls a texture bounded by the illusory contours to the same depth plane with the illusory figure. We investigated whether three-dimensionally curved and slanted illusory figures could capture a repeating background texture. According to results, stereoscopic capture was perceived when a disparate illusory contour was slanted provided ...
متن کاملCapture Illusory Contours: A Level Set Based Approach
Illusory contours are intrinsic phenomena in human vision. Many methods have been proposed to identify illusory contours. In this paper, we present a level set based variational model to capture a typical class of illusory contours such as Kanizsa triangle. The model consists of two parts: the first part drives the zero level set to the inside desired solid boundaries and keeps it sticking to t...
متن کاملIllusory contours
Illusory contours are perceived in the absence of any real physical luminance gradients between inducers that are spatially discontinuous (Fig. 1a,b).1–3 It has been controversial whether the perception of these subjective contours arise from higher level cognitive mechanisms that depend on attention and serial search4–6 or from lower level parallel processing in the early automatic, preattenti...
متن کاملExtraction of Illusory Contours by Perceptual Grouping
The detection of arbitrary objects in images is still a major challenge in image processing. Many approaches rely on the robust extraction of contours. Object contours, however, are frequently occluded by other objects. How can one deal with this problem? One important source for inspirations in such diicult situations is the human visual system. There are several systems that describe the earl...
متن کاملCurvature coding in illusory contours
We have employed the shape frequency and shape-amplitude after-effects (SFAE and SAAE) to investigate: (i) whether the shapes of illusory and real curves are processed by the same or different mechanisms, and (ii) the carrier-tuning properties of illusory curvature mechanisms. The SFAE and SAAE are the phenomena in which adaptation to a sinusoidal-shaped contour results in a shift in, respectiv...
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ژورنال
عنوان ژورنال: Nature
سال: 1986
ISSN: 0028-0836,1476-4687
DOI: 10.1038/324393a0