US5357429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-dimensional model generation using multiple angle tomographic scan planes
Assignee: Individual
•
Filing: 1992-04-02
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Granted: 1994-10-18
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Expires: 2012-04-02
Abstract
Abstract Three-dimensional models are constructed from two-dimensional tomographic data collected from contiguous, substantially parallel, cross-sectional tomographic slices through an imaged object. The scan angle of each cross-sectional tomographic slice is variably disposed at a predetermined, non-perpendicular angle with respect to a longitudinal axis through the scanner/imaged object to better depict certain structures and/or shapes of the scanner/imaged object. Optimum scan angle generated two-dimensional tomographic data is selected to reconstruct three-dimensional images depicting the surface and/or interior structure of the imaged object. The optimum two-dimensional data set is supplied to a three-dimensional model generator to form a three-dimensional model of the imaged object.
Inventors
- 👤 Richard A. Levy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:24
CPC Classifications
G; G06; G06T; G06T12/00; G06T12/10; B; B33; B33Y; B33Y50/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
156 words
A method for generating a three-dimensional model of a surface of an imaged object from two-dimensional tomographic data comprising the steps of: inclining a tomographic data generator apparatus at a predetermined non-perpendicular angle with respect to the longitudinal axis of the scanner/imaged object; generating a plurality of contiguous, substantially parallel, tomographic cross-sectional slices of the imaged object, each cross-sectional slice being inclined at a predetermined, non-perpendicular angle with respect to the longitudinal axis of the scanner/imaged object; generating a plurality of two-dimensional data sets collectively defining the three-dimensional surface of the body from the tomographic cross-sectional slices; repeating the above steps a plurality of times, during each time inclining the tomographic data generator apparatus at a different, non-perpendicular angle with respect to the longitudinal axis of the imaged object; selecting two-dimensional data set which results in the most accurate three-dimensional image of the imaged object; and generating a three-dimensional model from the selected two-dimensional data set.
Claim 2
Independent Claim
156 words
A method for generating a three-dimensional model of a surface of an imaged object from two-dimensional tomographic data comprising the steps of: inclining a tomographic data generator apparatus at a predetermined non-perpendicular angle with respect to the longitudinal axis of the scanner/imaged object; generating a plurality of contiguous, substantially parallel, tomographic cross-sectional slices of the imaged object, each cross-sectional slice being inclined at a predetermined, non-perpendicular angle with respect to the longitudinal axis of the scanner/imaged object; generating a plurality of two-dimensional data sets collectively defining the three-dimensional surface of the body from the tomographic cross-sectional slices; repeating the above steps a plurality of times, during each time inclining the tomographic data generator apparatus at a different, non-perpendicular angle with respect to the longitudinal axis of the imaged object; selecting two-dimensional data set which results in the most accurate three-dimensional image of the imaged object; and generating a three-dimensional model from the selected two-dimensional data set.
Claim 3
Dependent Claim
34 words
The method of claim 1 further comprising the step of: generating a three-dimensional image of the surface of the imaged object from the plurality of two-dimensional data sets at each predetermined, non-perpendicular scan angle.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-10-17 | 1998-04-18 | 1998-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-17 | 2002-04-18 | 2002-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-17 | 2006-04-18 | 2006-10-18 | $7700.00 | Window Closed / Lapsed |