Recovery of 3-D shape from deforming contours
نویسندگان
چکیده
منابع مشابه
3-D Shape Representation by Contours
The question of ,3-D shape representation is studied on the fundamental and general level. The two aspects of the problem, (i) the reconstuction of a 3-D shape from a given set of contours , and (ii) finding ''natural'' coordinates on a given surface, are treated by the same theory. We first set a few basic principles that should guide any shape reconstruction mechanism, regardless of its physi...
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In a series of four experiments, we evaluated observers' abilities to perceive and discriminate ordinal depth relationships between separated local surface regions for objects depicted by static, deforming, and disparate boundary contours or silhouettes. Comparisons were also made between judgments made for silhouettes and for objects defined by surface texture, which permits judgment based on ...
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In this paper, we develop a simple, eigen-space matching algorithm for closed 3-D contours. Our algorithm relies on a novel method which normalizes the Fourier descriptors (FDs) of a 3-D contour with respect to two of its FD coefficients corresponding to the lowest non-zero frequencies. The remaining matching task only involves vertex shift and rotation about the z-axis. Our approach is inspire...
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ژورنال
عنوان ژورنال: Perception & Psychophysics
سال: 1991
ISSN: 0031-5117,1532-5962
DOI: 10.3758/bf03205987