Shape and Position Determination Based on Combination of Photogrammetry with Phase Analysis of Fringe Patterns
The basic methodologies used in animation are presented and their most significant problems connected with combining real and virtual worlds are recognised. It includes the creation of virtual object and description of its realistic movement. To perform these tasks an optical method based on fringe projection and marker tracking is applied. The spatial analysis of a projected fringe pattern delivers an information about shape of an object and its out-of-plane displacement. Additionally the analysis of positions of fiducial points at the object observed by two CCDs provides an on-line information about (x,y,z) co-ordinates of these points. Combining the information about object shape and 3D co-ordinates of fiducial points during the measurement enables to generate a virtual model of the object together with the description of its movement. The concept described above is experimentally tested and the exemplary results are presented. The further works to implement this technique are discussed.
Keywordsaugmented reality photogrammetry fringe patterns
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