2008 | OriginalPaper | Buchkapitel
Depth Gradient Image Based On Silhouette: A Solution for Reconstruction Of Scenes in 3D Environments
verfasst von : Pilar Merchàn, Antonio Adàn, Santiago Salamanca
Erschienen in: Informatics in Control Automation and Robotics
Verlag: Springer Berlin Heidelberg
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Greatest difficulties arise in 3D environments when we have to deal with a scene with dissimilar objects without pose restrictions and where contacts and occlusions are allowed. This work tackles the problem of correspondence and alignment of surfaces in such a kind of scenes. The method presented in this chapter is based on a new representation model called Depth Gradient Image Based on Silhouette (DGI-BS) which synthesizes object surface information (through depth) and object shape information (through contour). Recognition and pose problems are efficiently solved for all objects of the scene by using a simple matching algorithm in the DGI-BS space. As a result of this the scene can be virtually reconstructed. This work is part of a robot intelligent manipulation project. The method has been successfully tested in real experimentation environments using range sensors.