文章基本信息

标题：Tracking of industrial objects by using CAD models
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作者：Harald Wuest ; Didier Stricker
期刊名称：Journal of Virtual Reality and Broadcasting
印刷版ISSN：1860-2037
出版年度：2007
卷号：4
期号：1
DOI：10.20385/1860-2037/4.2007.1
出版社：University of Applied Sciences Dusseldorf
摘要：In this paper we present a model-based approach for real-time camera pose estimation in industrial scenarios. The line model which is used for tracking is generated by rendering a polygonal model and extracting contours out of the rendered scene. By un-projecting a point on the contour with the depth value stored in the z-buffer, the 3D coordinates of the contour can be calculated. For establishing 2D/3D correspondences the 3D control points on the contour are projected into the image and a perpendicular search for gradient maxima for every point on the contour is performed. Multiple hypotheses of 2D image points corresponding to a 3D control point make the pose estimation robust against ambiguous edges in the image.
关键词：Augmented Reality;CAD model;Line Tracking;Tracking