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Furman Y.A.,Mariiskii State Technical University | Eruslanov R.V.,Mariiskii State Technical University | Lazarev A.O.,Mariiskii State Technical University
Pattern Recognition and Image Analysis | Year: 2012

A solution is given of the reconstruction problem of the vertex coordinates of a three-dimensional image of a 3D object in the shape of a polyhedron, situated on a plane. There were used the algorithms of contour analysis of the images of its perspective projections with a constant level of intensities (shadows). The conjugate points on these projections, necessary for the reconstruction, were obtained using the results of the contour coordinated filtration. © 2012 Pleiades Publishing, Ltd. Source


Furman Y.A.,Mariiskii State Technical University | Eruslanov R.V.,Mariiskii State Technical University | Egoshina I.L.,Mariiskii State Technical University
Pattern Recognition and Image Analysis | Year: 2012

An indirect way of reconstructing the coordinates of points on the surface of a 3D object by its planar parallel projections is proposed. The approach is based on the substitution of the object by another (virtual) object, for which this operation can be carried out simply, whereas the correctness of the obtained results is controlled. The specificities of obtaining a mathematical model of reconstructed objects with a polyhedral shape, the issues of normalization of the angular discrepancies between the recognized and the etalon objects, and the solution of the problem of their recognition based on the introduced model are considered. © 2012 Pleiades Publishing, Ltd. Source

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