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Catadioptric Silhouette-Based Pose Estimation from Learned Models

Authors Reinbacher Christian, Heber Markus, Rüther Matthias, Bischof Horst
Appeared in 17th Scandinavian Conference on Image Analysis (SCIA)
Organization IAPR
Date  2011
Abstract The automated handling of objects requires the estimation of object position and rotation with respect to an actuator. We propose a system for silhouette-based pose estimation, which can be applied to a variety of objects, including untextured and slightly transparent objects. Pose estimation inevitably relies on previous knowledge of the object’s 3D geometry. In contrast to traditional view-based approaches our sys- tem creates the required 3D model solely from the object silhouettes and abandons the need to obtain a model beforehand. It is sufficient to rotate the object in front of the catadioptric camera system. Experimen- tal results show that the pose estimation accuracy drops only slightly compared to a highly accurate input model. The whole system utilizes the parallel processing power of graphics cards, to deliver an auto cal- ibration in 20 seconds and reconstructions and pose estimations in 200 milliseconds.
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