Completion of Visible Contours
نویسندگان
چکیده
منابع مشابه
Volume completion.
The visual system completes image fragments into larger regions when those fragments are taken to be the visible portions of an occluded object. Kellman and Shipley (1991) argued that this "amodal" completion is based on the way that the contours of image fragments "relate." Contours relate when their imaginary extensions intersect at an obtuse or right angle. However, it is shown here that con...
متن کاملNeural network model for completing occluded contours
When some parts of a pattern are occluded by other objects, the visual system can often estimate the shape of occluded contours from visible parts of the contours. This paper proposes a neural network model capable of such function, which is called amodal completion. The model is a hierarchical multi-layered network that has bottom-up and top-down signal paths. It contains cells of area V1, whi...
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Building on the modal and amodal completion work of Kanizsa, Carman and Welch showed that binocular stereo viewing of two disparate images can give rise to a percept of 3D curved, nonclosed illusory contours and surfaces. Here, it is shown that binocular presentation can also give rise to the percept of closed curved surfaces or volumes that appear to vary smoothly across discrete depths in bin...
متن کاملBoundary completion in illusory contours: Interpolation
Most computational and neural-style models of contour completion (ie illusory and occluded contours) are based on interpolation: the filling in of an edge between two visible edges. The results of three experiments suggest an alternative conception, that units are formed as a result of extrapolation from visible edges. In three experiments, subjects reported illusory contours between standard i...
متن کاملTopological Requirements of Figural Completion
Figural completion, in its most common form, is the preattentive inference of the shape and location of the occluded parts of visible surfaces. Yet it also underlies illusory contour phenomena, which are associated with completion of occluding, rather than occluded surfaces. Phenomenological accounts, such as Kanizsa'ss5], though insightful, lack the precision necessary to formulate a computati...
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عنوان ژورنال:
- SIAM J. Imaging Sciences
دوره 2 شماره
صفحات -
تاریخ انتشار 2009