U.S. patents available from 1976 to present.
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Method utilizing frequency domain representations for generating two-dimensional views of three-dimensional objects

Patent 5414803 Issued on May 9, 1995. Estimated Expiration Date: Icon_subject July 7, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

System for reprojecting images using transform techniques
Patent #: 4616318
Issued on: 10/07/1986
Inventor: Crawford

Image movement processing for page planning
Patent #: 4924388
Issued on: 05/08/1990
Inventor: Stansfield, et al.

Distortion reduction in projection imaging by manipulation of fourier transform of projection sample Patent #: 5079697
Issued on: 01/07/1992
Inventor: Chesler

Inventor

Application

No. 088398 filed on 07/07/1993

US Classes:

345/427Space transformation

Examiners

Primary: Zimmerman, Mark

International Class

G06T 005/10

Abstract

The view generated is the view of a three-dimensional object that would be obtained if the object in question consisted of a translucent material illuminated with a beam of parallel light is generated. The method utilizes a spatial-to-frequency domain transformation that substantially reduces the computational workload. Once the object representation in the frequency domain has been generated, the computational workload needed to generate a projection is significantly less than that needed in other methods.

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