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» On Edge Detection on Surfaces
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COMGEO
2008
ACM
13 years 8 months ago
Unfolding Manhattan Towers
We provide an algorithm for unfolding the surface of any orthogonal polyhedron that falls into a particular shape class we call Manhattan Towers, to a nonoverlapping planar orthog...
Mirela Damian, Robin Y. Flatland, Joseph O'Rourke
CORR
2007
Springer
101views Education» more  CORR 2007»
13 years 8 months ago
Unfolding Orthogonal Terrains
It is shown that every orthogonal terrain, i.e., an orthogonal (rightangled) polyhedron based on a rectangle that meets every vertical line in a segment, has a grid unfolding: its...
Joseph O'Rourke
IJRR
2000
85views more  IJRR 2000»
13 years 8 months ago
Experiments in Fingertip Perception of Surface Discontinuities
In this paper we present the results of experiments that explore the ability of the human fingertip to detect haptically simulated first-order and second-order surface discontinui...
Steven C. Venema, Blake Hannaford
ICPR
2008
IEEE
14 years 9 months ago
Counterfeit iris detection based on texture analysis
This paper addresses the issue of counterfeit iris detection, which is a liveness detection problem in biometrics. Fake iris mentioned here refers to iris wearing color contact le...
Tieniu Tan, Xianchao Qiu, Zhenan Sun, Zhuoshi Wei
CVPR
2012
IEEE
11 years 10 months ago
Fan Shape Model for object detection
We propose a novel shape model for object detection called Fan Shape Model (FSM). We model contour sample points as rays of final length emanating for a reference point. As in fo...
Xinggang Wang, Xiang Bai, Tianyang Ma, Wenyu Liu, ...