US6263040B1
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Methods and apparatus for cone-tilted parallel sampling and reconstruction
Assignee: General Electric Co
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Filing: 1999-08-10
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Granted: 2001-07-17
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Expires: 2019-08-10
Abstract
Abstract In one aspect, the present invention is a method for generating an image using a digital flat panel detector wherein a pre-defined delay triggering sequence is utilized to acquire a set of parallel and tilted parallel samples. The image is then generated using a tilted parallel beam reconstruction algorithm.
Inventors
- 👤 Jiang Hsieh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:40
CPC Classifications
G; G06; G06T; G06T12/00; G06T12/20; G01; G01N; G01N23/00; G01N23/02; G01N23/04; G01N23/046; G01N2223/00; G01N2223/40; G01N2223/419; G06T2211/00; G06T2211/40; G06T2211/421; Y; Y10; Y10S; Y10S378/00; Y10S378/901
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
62 words
A method for generating an image using a digital flat panel detector, the detector including a plurality of detector cells, a signal activation line provided for each cell row to activate each cell in each respective row, said method comprising the steps of: obtaining data from the detector using a pre-defined delay triggering sequence; using the obtained data to generate an image.
Claim 2
Independent Claim
62 words
A method for generating an image using a digital flat panel detector, the detector including a plurality of detector cells, a signal activation line provided for each cell row to activate each cell in each respective row, said method comprising the steps of: obtaining data from the detector using a pre-defined delay triggering sequence; using the obtained data to generate an image.
Claim 3
Dependent Claim
22 words
A method in accordance with claim 1 wherein the delay triggering sequence results in a set of parallel and tilted parallel samples.
Claim 4
Dependent Claim
19 words
A method in accordance with claim 1 wherein the image is generated using a tilted parallel beam reconstruction algorithm.
Claim 5
Dependent Claim
137 words
A method in accordance with claim 3 wherein an object, f(x,y,z), is: f ( x , y , z ) = 1 2 ∫ 0 2 π [ d / ( d 2 + Z 2 ) 1 / 2 ] [ ∫ - ∞ ∞ S β ( ω , Z ) j 2 π ω x ω ω ] β where: S β ( ω , Z ) = ∫ - ∞ ∞ P β ( t , Z ) - j 2 πω x t , and P β (t,Z) is the projection intersecting point (x,y,z).
Claim 6
Dependent Claim
62 words
A processor for reconstructing an image using data collected from a digital flat panel detector, the detector including a plurality of detector cells, a signal activation line provided for each cell row to activate each cell in each respective row, said processor programmed to: obtain data from the detector using a pre-defined delay triggering sequence; generate an image using the obtained data.
Claim 7
Dependent Claim
62 words
A processor for reconstructing an image using data collected from a digital flat panel detector, the detector including a plurality of detector cells, a signal activation line provided for each cell row to activate each cell in each respective row, said processor programmed to: obtain data from the detector using a pre-defined delay triggering sequence; generate an image using the obtained data.
Claim 8
Dependent Claim
22 words
A processor in accordance with claim 5 wherein said delay triggering sequence results in a set of parallel and tilted parallel samples.
Claim 9
Dependent Claim
23 words
A processor in accordance with claim 5 wherein said processor is programmed to generate an image using a tilted parallel beam reconstruction algorithm.
Claim 10
Dependent Claim
137 words
A processor in accordance with claim 7 wherein an object, f(x,y,z), is: f ( x , y , z ) = 1 2 ∫ 0 2 π [ d / ( d 2 + Z 2 ) 1 / 2 ] [ ∫ - ∞ ∞ S β ( ω , Z ) j 2 π ω x ω ω ] β where: S β ( ω , Z ) = ∫ - ∞ ∞ P β ( t , Z ) - j 2 πω x t , and P β (t,Z) is the projection intersecting point (x,y,z).
Claim 11
Dependent Claim
76 words
A computed tomography machine comprising: a digital flat panel detector, said detector including a plurality of detector cells, a signal activation line provided for each said cell row to activate each said cell in each said respective row, and a processor for reconstructing an image using data collected from said digital flat panel detector, said processor programmed to: obtain data from the detector using a pre-defined delay triggering sequence; generate an image using the obtained data.
Claim 12
Dependent Claim
76 words
A computed tomography machine comprising: a digital flat panel detector, said detector including a plurality of detector cells, a signal activation line provided for each said cell row to activate each said cell in each said respective row, and a processor for reconstructing an image using data collected from said digital flat panel detector, said processor programmed to: obtain data from the detector using a pre-defined delay triggering sequence; generate an image using the obtained data.
Claim 13
Dependent Claim
24 words
A computed tomography machine in accordance with claim 9 wherein said delay triggering sequence results in a set of parallel and tilted parallel samples.
Claim 14
Dependent Claim
25 words
A computed tomography machine in accordance with claim 9 wherein said processor is programmed to generate an image using a tilted parallel beam reconstruction algorithm.
Claim 15
Dependent Claim
139 words
A computed tomography machine in accordance with claim 11 wherein an object, f(x,y,z), is: f ( x , y , z ) = 1 2 ∫ 0 2 π [ d / ( d 2 + Z 2 ) 1 / 2 ] [ ∫ - ∞ ∞ S β ( ω , Z ) j 2 π ω x ω ω ] β where: S β ( ω , Z ) = ∫ - ∞ ∞ P β ( t , Z ) - j 2 πω x t , and P β (t,Z) is the projection intersecting point (x,y,z).
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-07-16 | 2005-01-15 | 2005-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-07-16 | 2009-01-15 | 2009-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-07-16 | 2013-01-15 | 2013-07-17 | $7700.00 | Window Closed / Lapsed |