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Title

Computing signed distances between free-form objects

AuthorsThomas, Federico ; Thomas, Federico ; Turnbull, Colin; Ros, Lluís ; Cameron, Stephen
KeywordsAutomation: Robots
Robots
Robotics
Issue Date2000
PublisherInstitute of Electrical and Electronics Engineers
CitationIEEE International Conference on Robotics and Automation: 3713-3718 (2000)
AbstractGiven two sculptured objects, described by a collection of rational Bezier patches, we propose an algorithm that provides the distance between them if the objects are not intersecting, or a measure of penetration otherwise. The algorithm extends the upper-lower bound subdivision approach to the computation of the nearest points by considering the relative orientations between the subdivided patches. All required geometric constructions can be described as rational Bezier patches so that their control points can be precomputed from those of the original patches. Additional operations have been designed to exhibit linear complexity with the total number of involved control points.
DescriptionIEEE International Conference on Robotics and Automation (ICRA), 2000, San Francisco (EE.UU.)
URIhttp://hdl.handle.net/10261/30263
DOIhttp://dx.doi.org/10.1109/ROBOT.2000.845310
ISBN0780358899
Appears in Collections:(IRII) Comunicaciones congresos
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