Process for modelling a 3D scene

Image analysis – Applications – 3-d or stereo imaging analysis

Reexamination Certificate

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C345S419000

Reexamination Certificate

active

07113635

ABSTRACT:
A process for modeling a 3D scene is provided which comprises validating the model by determining a maximum permitted distortion (5) on a 2D synthesized image (4), generated by the approximation inherent in the model (2); calculating for a point I of a reference image (7) and on a set of synthesized images (4) representing the 3D point of the scene corresponding to this point I, of the minimum (zi−Δzi1) and maximum (zi+Δzi2) depth values of the depth ziof this point I corresponding to this maximum distortion, calculating a span around the depth ziof this point I, dependant on the minimum value of the error Δzi2and on the minimum value of the error Δzi1among the values calculated for the synthesized images of the set.

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patent: 6198486 (2001-03-01), Junkins et al.
patent: 0526881 (1993-02-01), None
patent: 2798761 (2001-03-01), None
Chang, et al “View generation for three dimensional scenes from video sequences”, IEEE, pp. 584-598, 1997.
Fitzgibbon et al., “Automatic 3D Model Construction for Turn-Table Sequences”, Lecture Notes in Computer Science, Springer Verlag, New York, NY, US, Jun. 6, 1998, pp. 155-170.
Chen et al., “Adaptive Range Data Approximation by Constrained Surface Triangulation”, Work. Conf. Modeling in Computer Graphics, Jul. 1993, pp. 95-113.
Search Report for French Appln. No. 0203663 dated Mar. 25, 2002.

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