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IROS
2008
IEEE
243views Robotics» more  IROS 2008»
16 years 13 days ago
Fast plane detection and polygonalization in noisy 3D range images
— A very fast but nevertheless accurate approach for surface extraction from noisy 3D point clouds is presented. It consists of two parts, namely a plane fitting and a polygonal...
Jann Poppinga, Narunas Vaskevicius, Andreas Birk 0...
CAIP
2007
Springer
150views Image Analysis» more  CAIP 2007»
16 years 6 days ago
Junction Detection and Multi-orientation Analysis Using Streamlines
We present a novel method to detect multimodal regions composed of linear structures and measure the orientations in these regions, i.e. at line X-sings, T-junctions and Y-forks. I...
Frank G. A. Faas, Lucas J. van Vliet
CCCG
2006
15 years 7 months ago
Range-Aggregate Proximity Detection for Design Rule Checking in VLSI Layouts
In a range-aggegate query problem we wish to preprocess a set S of geometric objects such that given a query orthogonal range q, a certain intersection or proximity query on the o...
R. Sharathkumar, Prosenjit Gupta
ICCV
2007
IEEE
16 years 8 months ago
Novel Depth Cues from Uncalibrated Near-field Lighting
We present the first method to compute depth cues from images taken solely under uncalibrated near point lighting. A stationary scene is illuminated by a point source that is move...
Sanjeev J. Koppal, Srinivasa G. Narasimhan
COMPGEOM
2001
ACM
15 years 9 months ago
Computing a 3-dimensional cell in an arrangement of quadrics: exactly and actually!
We present two approaches to the problem of calculating a cell in a 3-dimensional arrangement of quadrics. The first approach solves the problem using rational arithmetic. It work...
Nicola Geismann, Michael Hemmer, Elmar Schöme...