NL192189C - Stelsel voor het reprojekteren van beelden onder toepassing van omzettechnieken. - Google Patents
Stelsel voor het reprojekteren van beelden onder toepassing van omzettechnieken. Download PDFInfo
- Publication number
- NL192189C NL192189C NL8401684A NL8401684A NL192189C NL 192189 C NL192189 C NL 192189C NL 8401684 A NL8401684 A NL 8401684A NL 8401684 A NL8401684 A NL 8401684A NL 192189 C NL192189 C NL 192189C
- Authority
- NL
- Netherlands
- Prior art keywords
- npic
- reprojections
- fourier transforms
- image
- dimensional
- 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
- G06T11/006—Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods
-
- 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]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S378/00—X-ray or gamma ray systems or devices
- Y10S378/901—Computer tomography program or processor
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Pure & Applied Mathematics (AREA)
- Algebra (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Processing Or Creating Images (AREA)
- Image Processing (AREA)
- Medical Treatment And Welfare Office Work (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/501,832 US4616318A (en) | 1983-06-07 | 1983-06-07 | System for reprojecting images using transform techniques |
US50183283 | 1983-06-07 |
Publications (3)
Publication Number | Publication Date |
---|---|
NL8401684A NL8401684A (nl) | 1985-01-02 |
NL192189B NL192189B (nl) | 1996-11-01 |
NL192189C true NL192189C (nl) | 1997-03-04 |
Family
ID=23995189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL8401684A NL192189C (nl) | 1983-06-07 | 1984-05-25 | Stelsel voor het reprojekteren van beelden onder toepassing van omzettechnieken. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4616318A (de) |
JP (1) | JP2720894B2 (de) |
DE (1) | DE3420576C2 (de) |
FR (1) | FR2547439B1 (de) |
NL (1) | NL192189C (de) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02121636A (ja) * | 1988-10-31 | 1990-05-09 | Yokogawa Medical Syst Ltd | ストリーク等を低減する画像処理方法及び装置 |
US5008822A (en) * | 1988-11-25 | 1991-04-16 | Picker International, Inc. | Combined high speed backprojection and forward projection processor for CT systems |
US5079697A (en) * | 1989-05-01 | 1992-01-07 | The General Hospital Corporation | Distortion reduction in projection imaging by manipulation of fourier transform of projection sample |
US5414803A (en) * | 1991-01-11 | 1995-05-09 | Hewlett-Packard Company | Method utilizing frequency domain representations for generating two-dimensional views of three-dimensional objects |
US5404293A (en) * | 1991-06-11 | 1995-04-04 | The University Of Utah | Cone beam reconstruction using helical data collection paths |
US5170439A (en) * | 1991-06-11 | 1992-12-08 | Picker International, Inc. | Cone beam reconstruction using combined circle and line orbits |
US5701360A (en) * | 1993-05-07 | 1997-12-23 | Siemens Aktiengesellschaft | Fourier reconstruction of computer tomography images which represent a selectable region of the examination subject |
DE4315279C2 (de) * | 1993-05-07 | 1996-02-22 | Siemens Ag | Verfahren zum Erzeugen eines Schichtbildes mit Hilfe eines Computertomographen |
US5438602A (en) * | 1993-12-23 | 1995-08-01 | General Electric Company | Correction of CT attenuation data using fan beam reprojections |
EP0905638A1 (de) * | 1994-08-29 | 1999-03-31 | Torsana A/S | Bestimmungsverfahren |
IL121773A0 (en) * | 1997-09-15 | 1998-02-22 | Elscint Ltd | Method for improving CT images having high attenuation objects |
US6021215A (en) * | 1997-10-10 | 2000-02-01 | Lucent Technologies, Inc. | Dynamic data visualization |
US6351548B1 (en) | 1999-06-23 | 2002-02-26 | The Board Of Trustees Of The University Of Illinois | Fast hierarchical reprojection algorithm for tomography |
US6263096B1 (en) | 1999-06-23 | 2001-07-17 | The Board Of Trustees Of The University Of Illinois | Multilevel domain decomposition method for fast reprojection of images |
US6332035B1 (en) | 1999-06-23 | 2001-12-18 | The Board Of Trustees Of The University Of Illinois | Fast hierarchical reprojection algorithms for 3D radon transforms |
US6282257B1 (en) | 1999-06-23 | 2001-08-28 | The Board Of Trustees Of The University Of Illinois | Fast hierarchical backprojection method for imaging |
US6307911B1 (en) | 1999-06-23 | 2001-10-23 | The Board Of Trustees Of The University Of Illinois | Fast hierarchical backprojection for 3D Radon transform |
US6420194B1 (en) | 1999-10-12 | 2002-07-16 | Lucent Technologies Inc. | Method for extracting process determinant conditions from a plurality of process signals |
US6741730B2 (en) * | 2001-08-10 | 2004-05-25 | Visiongate, Inc. | Method and apparatus for three-dimensional imaging in the fourier domain |
US7209535B2 (en) * | 2003-06-20 | 2007-04-24 | Wisconsin Alumni Research Foundation | Fourier space tomographic image reconstruction method |
WO2007029129A2 (en) * | 2005-09-06 | 2007-03-15 | Koninklijke Philips Electronics, N.V. | Data handling and analysis in computed tomography with multiple energy windows |
DE102005051620A1 (de) * | 2005-10-27 | 2007-05-03 | Siemens Ag | Verfahren zur Rekonstruktion einer tomographischen Darstellung eines Objektes |
CN101495038A (zh) * | 2006-08-03 | 2009-07-29 | 加州大学董事会 | 层析中剂量减少和图像增强的迭代方法 |
US8442353B2 (en) * | 2006-08-03 | 2013-05-14 | The Regents Of The University Of California | Incorporation of mathematical constraints in methods for dose reduction and image enhancement in tomography |
EP2249705A4 (de) * | 2008-01-30 | 2014-06-25 | Univ California | Dosisreduzierung und bilderweiterung in der tomographie durch verwendung der umgebung von objekten als dynamische beschränkungen |
US8280135B2 (en) * | 2009-01-20 | 2012-10-02 | Mayo Foundation For Medical Education And Research | System and method for highly attenuating material artifact reduction in x-ray computed tomography |
US8611626B2 (en) * | 2009-04-30 | 2013-12-17 | The Regents Of The University Of California | System and methods for fast implementation of equally-sloped tomography |
KR102096410B1 (ko) * | 2014-05-02 | 2020-04-03 | 삼성전자주식회사 | 의료 영상 장치 및 그 제어 방법 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4433380A (en) * | 1975-11-25 | 1984-02-21 | Philips Medical Systems, Inc. | Tomographic scanner |
GB1578442A (en) * | 1976-07-01 | 1980-11-05 | Emi Ltd | Radiography |
JPS5394787A (en) * | 1977-01-31 | 1978-08-19 | Toshiba Corp | Tomographic diagnostic equipment by radiation |
JPS544585A (en) * | 1977-06-14 | 1979-01-13 | Toshiba Corp | Tomographic apparatus by radiations |
US4217641A (en) * | 1978-04-28 | 1980-08-12 | U.S. Philips Corporation | Correction for polychromatic X-ray distortion in CT images |
US4222104A (en) * | 1978-11-02 | 1980-09-09 | E M I Limited | Radiography |
JPS6058504B2 (ja) * | 1980-11-17 | 1985-12-20 | 株式会社東芝 | 再構成装置 |
JPS59149555A (ja) * | 1983-02-15 | 1984-08-27 | Toshiba Corp | X線ct装置 |
-
1983
- 1983-06-07 US US06/501,832 patent/US4616318A/en not_active Expired - Lifetime
-
1984
- 1984-05-25 NL NL8401684A patent/NL192189C/nl not_active IP Right Cessation
- 1984-06-01 FR FR848408669A patent/FR2547439B1/fr not_active Expired - Lifetime
- 1984-06-01 DE DE3420576A patent/DE3420576C2/de not_active Expired - Lifetime
- 1984-06-05 JP JP11635484A patent/JP2720894B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE3420576A1 (de) | 1985-02-07 |
FR2547439B1 (fr) | 1991-08-23 |
JP2720894B2 (ja) | 1998-03-04 |
JPS6041170A (ja) | 1985-03-04 |
NL192189B (nl) | 1996-11-01 |
DE3420576C2 (de) | 1999-04-29 |
NL8401684A (nl) | 1985-01-02 |
US4616318A (en) | 1986-10-07 |
FR2547439A1 (fr) | 1984-12-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
SNR | Assignments of patents or rights arising from examined patent applications |
Owner name: PICKER MEDICAL SYSTEMS LTD. |
|
V4 | Discontinued because of reaching the maximum lifetime of a patent |
Effective date: 20040525 |