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- W2091940021 abstract "In contrast to previous global 3D motion concept, a Gibbs random field based method, which models local interactions between motion parameters defined at each point on the object, is proposed. An energy function which gives the joint probability distribution of motion vectors, is constructed. The energy function is minimized in order to find the most likely motion vector set. Some convergence problems, due to ill-posedness of the problem, are overcome by using the concept of hierarchical rigidity. In hierarchical rigidity, the objects are assumed to be almost rigid in the coarsest level and this rigidness is weakened at each level until the finest level is reached. The propagation of motion information between levels, is encouraged. At the finest level, each point have a motion vector associated with it and the interaction between these vectors are described by the energy function. The minimization of the energy function is achieved by using hierarchical rigidity, without trapping into a local minimum. The results are promising." @default.
- W2091940021 created "2016-06-24" @default.
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- W2091940021 date "1994-09-16" @default.
- W2091940021 modified "2023-10-05" @default.
- W2091940021 title "<title>Gibbs random field model based 3D motion estimation from video sequences</title>" @default.
- W2091940021 doi "https://doi.org/10.1117/12.186006" @default.
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