Boots – shoes – and leggings
Patent
1990-01-17
1993-06-08
Hayes, Gail O.
Boots, shoes, and leggings
395124, G06F 1500, G06F 1572
Patent
active
052185346
ABSTRACT:
In order to carry out a three-dimensional reconstruction of an object acquired by a series of conical projections on a two-dimensional multidetector, the object is estimated by a sampled function. The sampled function is projected and the projections of the sampled function are compared with the measurements resulting from acquisition on the 2D multidetector. A new estimation of the object is deduced therefrom and these operations are repeated until the comparison is satisfactory. In order to project, the sampled three-dimensional object is decomposed on a space of Gaussian basis functions. The contribution of the basis functions is computed for each image of the projection images, these contributions being equal to the integral of the product of the basis functions and of a support for illumination of the image element. It is shown that the choice of a Gaussian function as a function which is representative of the support makes it possible on the one hand to eliminate reconstruction artifacts and on the other hand to increase the speed of computation of reconstruction as a result of simplification of the reconstruction computations which this choice entails.
REFERENCES:
patent: 4128877 (1978-12-01), Katz
patent: 4630203 (1986-12-01), Szirtes
patent: 4751643 (1988-06-01), Lorensen et al.
patent: 4791567 (1988-12-01), Cline et al.
patent: 4821213 (1989-04-01), Cline et al.
patent: 4835712 (1989-05-01), Drebin et al.
patent: 4952922 (1990-08-01), Griffin et al.
patent: 4989142 (1991-01-01), Crawford
Applied Optics, vol. 24, No. 23, Dec. 1, 1985, pp. 4028-4039, K. M. Hanson, et al., "Local Basis-Function Approach to Computed Tomography".
IEEE Transactions on Nuclear Science, vol. NS 25, No. 5, Oct. 1978, pp. 1135-1143, M. Schlindwein, "Interative Three-Dimensional Reconstruction from Twin-Cone Beam Projections".
Applied Optics, vol. 24, No. 23, Dec. 1985, Hanson & Wecksung, "Local Basis-Function Approach to Computed Tomography".
Felix Didier S.
Hanson Kenneth
Rougee Anne
Trousset Yves
General Electric CGR S.A.
Hayes Gail O.
Poinvil Frantzy
LandOfFree
Method of computation and processing of the image in conical pro does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of computation and processing of the image in conical pro, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of computation and processing of the image in conical pro will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1946822