7 March 2006 Spatio-temporal approach to shape and motion measurements of 3D objects
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The methodologies and tools used recently in animation are presented and their most significant problems connected with combining real and virtual world are recognised. It includes creating of computer graphics libraries of realistic 3D objects and describing the models of animation in 3D space. The presented measurement methodology simplifies the process of generation ofvirtual objects and gives as the result: shape and movement description ofthe monitored object. Optical structured light methods are proposed for gathering the information about a shape, deformations of shape and shifts of 3D objects. Authors apply the spatio-temporal approach, in which the spatial analysis of fringe pattern delivers information about initial shape of the object, while the temporal analysis of intensity variation I(t) in the given pixel provides information about shape variations and out-of plane displacement. I(t) is analysed by Fourier transform based method. Determination of rigid body motion of the objects is performed by photogrametry based marker tracking method. The methodology of measurement is presented together with exemplary experimental results.
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Malgorzata Kujawinska, Malgorzata Kujawinska, Michal Emanuel Pawlowski, Michal Emanuel Pawlowski, } "Spatio-temporal approach to shape and motion measurements of 3D objects", Proc. SPIE 4101, Laser Interferometry X: Techniques and Analysis, (7 March 2006); doi: 10.1117/12.498390; https://doi.org/10.1117/12.498390

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