title: Six-degrees-of-freedom sensing based on pictures taken by single camera.
abstract: Two six-degrees-of-freedom sensing methods are presented. In the first method, three laser beams are employed to set up Descartes' frame on a rigid body and a screen is adopted to form diffuse spots. In the second method, two superimposed grid screens and two laser beams are used. A CCD camera is used to take photographs in both methods. Both approaches provide a simple and error-free method to record the positions and the attitudes of a rigid body in motion continuously.
authors.affiliation: College of Automatic Control, Northwestern Polytechnical University, Xi'an 710072, China. lizhongke@vip.sina.com
authors.forename: Li
authors.initials: L
authors.lastname: Zhongke
authors.forename: Wang
authors.initials: W
authors.lastname: Yong
authors.forename: Qin
authors.initials: Q
authors.lastname: Yongyuan
authors.forename: Lu
authors.initials: L
authors.lastname: Peijun
mesh_terms: D003725:Dental Articulators; D006801:Humans; D007574:Jaw Relation Record; D008334:Mandible / Q000502:physiology*; D009068:Movement / Q000502:physiology*; D010781:Photography / Q000379:methods*