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• W3041204174 abstract "In this work, we propose algorithms to explicitly construct a conservative estimate of the configuration spaces of rigid objects in two and three dimensions. Our approach is able to detect compact path components and narrow passages in configuration space which are important for applications in robotic manipulation and path planning. Moreover, as we demonstrate, they are also applicable to identification of molecular cages in chemistry. Our algorithms are based on a decomposition of the resulting three- and six-dimensional configuration spaces into slices corresponding to a finite sample of fixed orientations in configuration space. We utilize dual diagrams of unions of balls and uniform grids of orientations to approximate the configuration space. Furthermore, we carry out experiments to evaluate the computational efficiency on a set of objects with different geometric features thus demonstrating that our approach is applicable to different object shapes. We investigate the performance of our algorithm by computing increasingly fine-grained approximations of the object’s configuration space. A multithreaded implementation of our approach is shown to result in significant speed improvements." @default.
• W3041204174 created "2020-07-16" @default.
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• W3041204174 date "2020-07-07" @default.
• W3041204174 modified "2023-09-30" @default.
• W3041204174 title "Free space of rigid objects: caging, path non-existence, and narrow passage detection" @default.
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• W3041204174 doi "https://doi.org/10.1177/0278364920932996" @default.
• W3041204174 hasPublicationYear "2020" @default.
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