Patent US6549606B1 successfully refreshed from Google Patents.
US6549606B1
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Method of reconstruction of a section of an element of interest
Assignee: GE Medical Systems SCS
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Filing: 2000-09-21
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Granted: 2003-04-15
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Expires: 2020-09-21
Abstract
Abstract Several acquisitions of digital radiographic images of an element of interest are made, by using a moving camera rotating around the element of interest in a plane parallel to the plane of a section, a matching stage is carried out in which projected elements are located in all the acquired images, corresponding respectively to the projections of the element of interest in those acquired images. The width of each projected element is determined and the section of the element of interest is reconstructed from the different widths determined.
Inventors
- 👤 Régis Vaillant
- 👤 Francisco Sureda
- 👤 Jean Lienard
- 👤 Laurent Launay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:37
CPC Classifications
G; G06; G06T; G06T12/00; G06T12/10; G06T2211/00; G06T2211/40; G06T2211/404; Y; Y10; Y10S; Y10S378/00; Y10S378/901
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
118 words
A method of reconstruction of a cross section of an element of interest contained in an object, comprising the steps of: (a) acquiring several digital radiographic images of the element of interest by using a moving camera rotating around the element of interest in a plane parallel to the plane of the section; (b) matching projected elements which are located in all the acquired images, corresponding respectively to projections of the element of interest in those acquired images; (c) determining a width of each projected element; (d) reconstructing the section of the element of interest from the different widths determined; and (e) determining a spatial orientation of the element of interest from a reconstruction of a three-dimensional representation.
Claim 2
Independent Claim
118 words
A method of reconstruction of a cross section of an element of interest contained in an object, comprising the steps of: (a) acquiring several digital radiographic images of the element of interest by using a moving camera rotating around the element of interest in a plane parallel to the plane of the section; (b) matching projected elements which are located in all the acquired images, corresponding respectively to projections of the element of interest in those acquired images; (c) determining a width of each projected element; (d) reconstructing the section of the element of interest from the different widths determined; and (e) determining a spatial orientation of the element of interest from a reconstruction of a three-dimensional representation.
Claim 3
Dependent Claim
21 words
The method of claim 1 wherein the step of spatial orientation is determined by an algebraic iterative algorithm of image reconstruction.
Claim 4
Dependent Claim
23 words
The method of claim 1 wherein the step of determining the width of each projected element is determined by an algorithmic segmentation technique.
Claim 5
Dependent Claim
34 words
The method of claim 1 wherein the step of reconstructing is determined by the cross-section of the element of interest by applying geometric techniques of cone intersection and geometric parameters for producing the image.
Claim 6
Independent Claim
74 words
A method of reconstruction of a cross-section of an element of interest contained in an object comprising the steps of: (a) acquiring several images of the element of interest in a plane parallel to the plane of the section; (b) matching projected elements that are located in all the acquired images; (c) determining a width of each projected element; and (d) reconstructing the cross-section of the element of interest from the different widths determined.
Claim 7
Independent Claim
74 words
A method of reconstruction of a cross-section of an element of interest contained in an object comprising the steps of: (a) acquiring several images of the element of interest in a plane parallel to the plane of the section; (b) matching projected elements that are located in all the acquired images; (c) determining a width of each projected element; and (d) reconstructing the cross-section of the element of interest from the different widths determined.
Claim 8
Dependent Claim
23 words
The method of claim 5 comprising: (e) determining a spatial orientation of the element of interest from a reconstruction of a three-dimensional representation.
Claim 9
Dependent Claim
21 words
The method of claim 5 wherein the step of spatial orientation is determined by an algebraic iterative algorithm of image reconstruction.
Claim 10
Dependent Claim
23 words
The method of claim 5 wherein the step of determining the width of each projected element is determined by an algorithmic segmentation technique.
Claim 11
Dependent Claim
34 words
The method of claim 5 wherein the step of reconstructing is determined by a cross-section of the element of interest by applying geometric techniques of cone intersection and geometric parameters for producing the image.
Claim 12
Dependent Claim
118 words
A radiology apparatus comprising: (a) means for providing a source of radiation; (b) means for detecting the radiation after the radiation is applied to an element of interest in an object; (c) means for acquiring images of the element of interest after the radiation is applied; (d) means for matching projected elements that are located in all the acquired images, corresponding respectively to projections of the element of interest in those acquired images; (e) means for determining a width of each projected element; (f) means for reconstructing a cross-section of the element of interest from different widths determined; and (g) means for determining a spatial orientation of the element of interest from a reconstruction of a three-dimensional representation.
Claim 13
Dependent Claim
118 words
A radiology apparatus comprising: (a) means for providing a source of radiation; (b) means for detecting the radiation after the radiation is applied to an element of interest in an object; (c) means for acquiring images of the element of interest after the radiation is applied; (d) means for matching projected elements that are located in all the acquired images, corresponding respectively to projections of the element of interest in those acquired images; (e) means for determining a width of each projected element; (f) means for reconstructing a cross-section of the element of interest from different widths determined; and (g) means for determining a spatial orientation of the element of interest from a reconstruction of a three-dimensional representation.
Claim 14
Dependent Claim
21 words
The apparatus of claim 10 wherein the means for spatial orientation is determined by an algebraic iterative algorithm of image reconstruction.
Claim 15
Dependent Claim
23 words
The apparatus of claim 10 wherein the means for determining the width of each projected element is determined by an algorithmic segmentation technique.
Claim 16
Dependent Claim
34 words
The apparatus of claim 10 wherein the means for reconstructing is determined by a cross-section of the element of interest by applying geometric techniques of cone intersection and geometric parameters for producing the image.
References Cited (Backward Citations)
FR2644590A1
Cited
US5150292A
Cited
FR2656129A1
Cited
US5241471A
Cited
US5204627A
Cited
US5757877A
Cited
WO1997049065A1
Cited
US6047080A
Cited
FR2752975A1
Cited
US6320928B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-04-14 | 2006-10-14 | 2007-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-04-14 | 2010-10-14 | 2011-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-04-14 | 2014-10-14 | 2015-04-15 | $7700.00 | Window Closed / Lapsed |