DocumentCode :
1724870
Title :
Automatic contour model creation out of polygonal CAD models for markerless Augmented Reality
Author :
Platonov, Juri ; Langer, Marion
Author_Institution :
metaio GmbH, Garching
fYear :
2007
Firstpage :
75
Lastpage :
78
Abstract :
We present a solution for automatic extraction of contour models out of polygonal CAD models. Such contour models can be used for markerless initialization and tracking purposes. To create a contour model we synthesize different views of the object using its CAD model. During the view generation we alternate the camera pose as well as light conditions in order to extract the most stable contours in terms of illumination invariance and view independence. We project the extracted 2D edges back into the 3D space and accumulate for every 3D point statistics over different views describing its visibility and stability under different illumination conditions. After filtering out all 3D points with probability below a certain threshold value we use the Euclidean Minimum Spanning Tree algorithm to get the connected contours out of the 3D point cloud. The result is a B-Spline or VRML representation of the most stable contours.
Keywords :
CAD; augmented reality; computational geometry; solid modelling; splines (mathematics); trees (mathematics); 2D edge extraction; 3D point cloud; B-spline contour model; VRML representation; automatic contour extraction model; euclidean minimum spanning tree algorithm; illumination invariance; industrial polygonal CAD model; markerless augmented reality; Augmented reality; Cameras; Clouds; Costs; Filtering algorithms; Layout; Lighting; Probability; Stability; Statistics; I.4.8 [Image processing and computer vision]: Scene Analysis¿Tracking;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Mixed and Augmented Reality, 2007. ISMAR 2007. 6th IEEE and ACM International Symposium on
Conference_Location :
Nara
Print_ISBN :
978-1-4244-1749-0
Electronic_ISBN :
978-1-4244-1750-6
Type :
conf
DOI :
10.1109/ISMAR.2007.4538829
Filename :
4538829
Link To Document :
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