IL83233A - Reconstruction in ct scanners using divergent beams - Google Patents
Reconstruction in ct scanners using divergent beamsInfo
- Publication number
- IL83233A IL83233A IL83233A IL8323387A IL83233A IL 83233 A IL83233 A IL 83233A IL 83233 A IL83233 A IL 83233A IL 8323387 A IL8323387 A IL 8323387A IL 83233 A IL83233 A IL 83233A
- Authority
- IL
- Israel
- Prior art keywords
- scanners
- reconstruction
- divergent beams
- divergent
- beams
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/003—Reconstruction from projections, e.g. tomography
- G06T11/005—Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2211/00—Image generation
- G06T2211/40—Computed tomography
- G06T2211/421—Filtered back projection [FBP]
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Image Processing (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL83233A IL83233A (en) | 1987-07-17 | 1987-07-17 | Reconstruction in ct scanners using divergent beams |
US07/215,762 US4894775A (en) | 1987-07-17 | 1988-07-06 | Reconstruction in CT scanners using divergent beams with flatness correction for reordered data |
DE3824326A DE3824326A1 (de) | 1987-07-17 | 1988-07-18 | Verfahren und einrichtung zum rekonstruieren in ct-abtastern unter verwendung divergierender strahlen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL83233A IL83233A (en) | 1987-07-17 | 1987-07-17 | Reconstruction in ct scanners using divergent beams |
Publications (2)
Publication Number | Publication Date |
---|---|
IL83233A0 IL83233A0 (en) | 1987-12-31 |
IL83233A true IL83233A (en) | 1991-01-31 |
Family
ID=11057988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL83233A IL83233A (en) | 1987-07-17 | 1987-07-17 | Reconstruction in ct scanners using divergent beams |
Country Status (3)
Country | Link |
---|---|
US (1) | US4894775A (xx) |
DE (1) | DE3824326A1 (xx) |
IL (1) | IL83233A (xx) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5032990A (en) * | 1989-05-30 | 1991-07-16 | General Electric Company | Translate rotate scanning method for x-ray imaging |
US5047931A (en) * | 1989-05-30 | 1991-09-10 | General Electric Company | Parallel computation of fan-beam back-projection reconstruction algorithm in computed tomography |
US5128864A (en) * | 1989-08-09 | 1992-07-07 | W. L. Systems, Inc. | Method for computing tomographic scans |
US5170439A (en) * | 1991-06-11 | 1992-12-08 | Picker International, Inc. | Cone beam reconstruction using combined circle and line orbits |
US5404293A (en) * | 1991-06-11 | 1995-04-04 | The University Of Utah | Cone beam reconstruction using helical data collection paths |
US5406479A (en) * | 1993-12-20 | 1995-04-11 | Imatron, Inc. | Method for rebinning and for correcting cone beam error in a fan beam computed tomographic scanner system |
US6411670B1 (en) * | 1999-11-17 | 2002-06-25 | General Electric Company | Data rebinning to increase resolution in CT image reconstruction |
US6415013B1 (en) * | 2000-12-28 | 2002-07-02 | Ge Medical Systems Global Technology Company, Llc | Backprojection methods and apparatus for computed tomography imaging systems |
US8094784B2 (en) | 2003-04-25 | 2012-01-10 | Rapiscan Systems, Inc. | X-ray sources |
US10483077B2 (en) | 2003-04-25 | 2019-11-19 | Rapiscan Systems, Inc. | X-ray sources having reduced electron scattering |
GB0525593D0 (en) | 2005-12-16 | 2006-01-25 | Cxr Ltd | X-ray tomography inspection systems |
US9208988B2 (en) | 2005-10-25 | 2015-12-08 | Rapiscan Systems, Inc. | Graphite backscattered electron shield for use in an X-ray tube |
GB0812864D0 (en) | 2008-07-15 | 2008-08-20 | Cxr Ltd | Coolign anode |
US8243876B2 (en) | 2003-04-25 | 2012-08-14 | Rapiscan Systems, Inc. | X-ray scanners |
US9046465B2 (en) | 2011-02-24 | 2015-06-02 | Rapiscan Systems, Inc. | Optimization of the source firing pattern for X-ray scanning systems |
US8218720B2 (en) * | 2007-03-12 | 2012-07-10 | Varian Medical Systems, Inc. | Method and apparatus to facilitate reconstructing an image using fan-beam data |
GB0816823D0 (en) | 2008-09-13 | 2008-10-22 | Cxr Ltd | X-ray tubes |
GB0901338D0 (en) | 2009-01-28 | 2009-03-11 | Cxr Ltd | X-Ray tube electron sources |
US9271689B2 (en) * | 2010-01-20 | 2016-03-01 | General Electric Company | Apparatus for wide coverage computed tomography and method of constructing same |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US30947A (en) * | 1860-12-18 | mahan | ||
US4075492A (en) * | 1974-11-29 | 1978-02-21 | The Board Of Trustees Of Leland Stanford Junior University | Fan beam X- or γ-ray 3-D tomography |
US4570224A (en) * | 1982-11-29 | 1986-02-11 | Elscint, Inc. | Combining rebinned and unrebinned parallel ray data with unequal lateral spacing to create tomograph images |
US4682291A (en) * | 1984-10-26 | 1987-07-21 | Elscint Ltd. | Noise artifacts reduction |
US4636952A (en) * | 1984-12-03 | 1987-01-13 | General Electric Company | Method and apparatus for back projection image reconstruction using virtual equi-spaced detector array |
-
1987
- 1987-07-17 IL IL83233A patent/IL83233A/xx unknown
-
1988
- 1988-07-06 US US07/215,762 patent/US4894775A/en not_active Expired - Lifetime
- 1988-07-18 DE DE3824326A patent/DE3824326A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
IL83233A0 (en) | 1987-12-31 |
DE3824326A1 (de) | 1989-03-02 |
US4894775A (en) | 1990-01-16 |
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