90 search results - page 8 / 18 » Formalizing complex plane geometry |
CAIP
2009
Springer
15 years 4 months ago
2009
Springer
In this paper we studied the geometry of a three-dimensional tableau from a single realist painting – Scott Fraser’s Three way vanitas (2006). The tableau contains a carefully ...
CLOR
2006
15 years 1 months ago
2006
Recent advances in object recognition have emphasized the integration of intensity-derived features such as affine patches with associated geometric constraints leading to impressi...
106
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COMPGEOM
2007
ACM
14 years 11 months ago
2007
ACM
Computing shadow boundaries is a difficult problem in the case of non-point light sources. A point is in the umbra if it does not see any part of any light source; it is in full l...
84
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AAAI
2008
14 years 12 months ago
2008
Direction relations between extended spatial objects are important commonsense knowledge. Recently, Goyal and Egenhofer proposed a formal model, called Cardinal Direction Calculus...
78
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FOCS
2007
IEEE
15 years 4 months ago
2007
IEEE
In this paper, we resolve the smoothed and approximative complexity of low-rank quasi-concave minimization, providing both upper and lower bounds. As an upper bound, we provide th...