Patent
1995-12-12
1997-11-18
Nguyen, Phu K.
G06F 1500
Patent
active
056896298
ABSTRACT:
A three-dimensional image reconstruction method comprises treating the object of interest as a group of elements with a size that is determined by the resolution of the projection data, e.g., as determined by the size of each pixel. One of the projections is used as a reference projection. A fictitious object is arbitrarily defined that is constrained by such reference projection. The method modifies the known structure of the fictitious object by comparing and optimizing its four projections to those of the unknown structure of the real object and continues to iterate until the optimization is limited by the residual sum of background noise. The method is composed of several sub-processes that acquire four projections from the real data and the fictitious object: generate an arbitrary distribution to define the fictitious object, optimize the four projections, generate a new distribution for the fictitious object, and enhance the reconstructed image. The sub-process for the acquisition of the four projections from the input real data is simply the function of acquiring the four projections from the data of the transmitted intensity. The transmitted intensity represents the density distribution, that is, the distribution of absorption coefficients through the object.
REFERENCES:
patent: 5586232 (1996-12-01), Yoshida
Peter Gilbert, "Iterative Methods for the Three-dimensional Reconstruction of an Object from Projections," J. theor. Bio. (1972) 36, pp. 105-117.
Gabor T. Herman, "ART: Mathematics and Applications. A Report on the Mathematical Foundations and on the Applicability to Real Data of the Algebraic Reconstruction Techniques," J. theor. Bio. (1973) 42, pp. 1-32.
Main Richard B.
Nguyen Phu K.
Sartorio Henry P.
The Regents of the University of California
LandOfFree
Iterative optimizing quantization method for reconstructing thre does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Iterative optimizing quantization method for reconstructing thre, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Iterative optimizing quantization method for reconstructing thre will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1572469