DD140202A5 - Verfahren und anordnung zur verminderung von bildfehlern in computer-tomographiebildern - Google Patents
Verfahren und anordnung zur verminderung von bildfehlern in computer-tomographiebildern Download PDFInfo
- Publication number
- DD140202A5 DD140202A5 DD78209557A DD20955778A DD140202A5 DD 140202 A5 DD140202 A5 DD 140202A5 DD 78209557 A DD78209557 A DD 78209557A DD 20955778 A DD20955778 A DD 20955778A DD 140202 A5 DD140202 A5 DD 140202A5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- image data
- image
- data
- memory
- radiation
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 26
- 230000005855 radiation Effects 0.000 claims description 23
- 238000012935 Averaging Methods 0.000 claims description 18
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 230000004075 alteration Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000002591 computed tomography Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 2
- 230000001678 irradiating effect Effects 0.000 claims 1
- 230000035699 permeability Effects 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 claims 1
- 238000012937 correction Methods 0.000 description 12
- 230000009466 transformation Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- ROGDGDPDLIVQFZ-OGFXRTJISA-N (2r)-2-(4-chloro-2-methylphenoxy)propanoic acid;n-methylmethanamine Chemical compound CNC.OC(=O)[C@@H](C)OC1=CC=C(Cl)C=C1C ROGDGDPDLIVQFZ-OGFXRTJISA-N 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
-
- 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
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radiology & Medical Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Pulmonology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- General Physics & Mathematics (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Image Processing (AREA)
- Image Analysis (AREA)
- Closed-Circuit Television Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2754361A DE2754361C2 (de) | 1977-12-07 | 1977-12-07 | Verfahren zur Verminderung von Bildfehlern in Computer-Tomographiebildern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD140202A5 true DD140202A5 (de) | 1980-02-20 |
Family
ID=6025444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD78209557A DD140202A5 (de) | 1977-12-07 | 1978-12-06 | Verfahren und anordnung zur verminderung von bildfehlern in computer-tomographiebildern |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US4272820A (xx) |
| JP (1) | JPS5491090A (xx) |
| BE (1) | BE872541A (xx) |
| BR (1) | BR7807987A (xx) |
| DD (1) | DD140202A5 (xx) |
| DE (1) | DE2754361C2 (xx) |
| ES (1) | ES475715A1 (xx) |
| FR (1) | FR2411420A1 (xx) |
| GB (1) | GB2010041B (xx) |
| IL (1) | IL56131A0 (xx) |
| IT (1) | IT1101523B (xx) |
| NL (1) | NL7811815A (xx) |
| SE (1) | SE7812436L (xx) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7711120A (nl) * | 1977-10-11 | 1979-04-17 | Philips Nv | Inrichting voor het bepalen van lokale absorp- tiewaarden in een vlak van een lichaam en een rij van detektoren voor een dergelijke in- richting. |
| DE2924423A1 (de) * | 1979-06-16 | 1980-12-18 | Philips Patentverwaltung | Verfahren zur ermittlung der raeumlichen verteilung der absorption von strahlung in einem ebenen bereich |
| NL7908545A (nl) * | 1979-11-23 | 1981-06-16 | Philips Nv | Inrichting voor het bepalen van een stralingsabsorptie- verdeling in een vlak van een lichaam. |
| DE3012648A1 (de) * | 1980-04-01 | 1981-10-08 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Computer-tomographiegeraet |
| US4375671A (en) * | 1980-11-03 | 1983-03-01 | General Electric Company | Method and means for filtering and updating pixel data |
| US4590558A (en) * | 1981-12-30 | 1986-05-20 | General Electric Company | Method and apparatus for removing objects from CT images |
| JPS58216039A (ja) * | 1982-06-11 | 1983-12-15 | 株式会社東芝 | 放射線画像処理装置 |
| JPS59117662A (ja) * | 1982-12-25 | 1984-07-07 | Shimadzu Corp | コンピユ−タ断層システム |
| IL70978A (en) * | 1983-03-09 | 1987-03-31 | Elscint Ltd | Methods for improving ct scanner images |
| US4670840A (en) * | 1983-03-09 | 1987-06-02 | Elscint, Inc. | Ring artifact correction for computerized tomography |
| US4580219A (en) * | 1983-05-02 | 1986-04-01 | General Electric Company | Method for reducing image artifacts due to projection measurement inconsistencies |
| US4578753A (en) * | 1983-08-29 | 1986-03-25 | Elscint Ltd. | Systems and methods for minimizing noncoplanarity artifacts |
| DE204844T1 (de) * | 1984-03-15 | 1987-09-03 | Yokogawa Medical Systems, Ltd., Tachikawa, Tokio/Tokyo | Bildverarbeitungsgeraet fuer roentgentomographie. |
| GB2169180B (en) * | 1984-12-28 | 1988-06-15 | Toshiba Kk | Ct apparatus and operating method therefor |
| FR2636752B1 (fr) * | 1988-09-16 | 1990-10-26 | Gen Electric Cgr | Procede et systeme de correction des defauts d'images d'un scanner dus aux deplacements de ce dernier |
| 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 |
| US5229934A (en) * | 1990-06-18 | 1993-07-20 | Picker International, Inc. | Post-processing technique for cleaning up streaks and artifacts in diagnostic images |
| US5251128A (en) * | 1990-11-19 | 1993-10-05 | General Electric Company | Motion artifact reduction in projection imaging |
| US5953444A (en) * | 1997-10-22 | 1999-09-14 | University Of Pennsylvania | Method for improved correction of spectrum hardening artifacts in computed tomography images |
| DE10112792B4 (de) * | 2001-03-16 | 2007-09-27 | Siemens Ag | Verfahren zur Korrektur einer Kalibrierwerte enthaltenden Kalibriertabelle eines CT-Geräts |
| US7340027B2 (en) | 2003-07-18 | 2008-03-04 | Koninklijke Philips Electronics N.V. | Metal artifact correction in computed tomography |
| US7596203B2 (en) * | 2004-10-15 | 2009-09-29 | Koninklijke Philips Electronics N.V. | Computer tomography method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1468021A (en) * | 1973-04-07 | 1977-03-23 | Emi Ltd | Radiology |
| GB1474685A (en) * | 1974-07-10 | 1977-05-25 | Emi Ltd | Radiography |
| DE2627885A1 (de) * | 1976-06-22 | 1978-01-05 | Philips Patentverwaltung | Anordnung zur ermittlung der raeumlichen verteilung der absorption von strahlung in einer ebene eines koerpers |
| US4070707A (en) * | 1976-07-12 | 1978-01-24 | General Electric Company | Reduction of offsets in data acquisition systems |
| DE2645416A1 (de) * | 1976-10-08 | 1978-04-13 | Philips Patentverwaltung | Verfahren und anordnung zur ermittlung der verteilung der absorption eines koerpers |
| DE2648132A1 (de) * | 1976-10-23 | 1978-04-27 | Philips Patentverwaltung | Verfahren und anordnung zur verminderung des einflusses von detektorfehlern bei roentgen-scannern |
| US4149081A (en) * | 1976-11-29 | 1979-04-10 | Varian Associates, Inc. | Removal of spectral artifacts and utilization of spectral effects in computerized tomography |
| DE2717349A1 (de) * | 1977-04-19 | 1978-10-26 | Siemens Ag | Roentgenschichtgeraet zur herstellung von transversalschichtbildern |
| US4135247A (en) * | 1977-08-15 | 1979-01-16 | Siemens Aktiengesellschaft | Tomography signal processing system |
-
1977
- 1977-12-07 DE DE2754361A patent/DE2754361C2/de not_active Expired
-
1978
- 1978-12-04 IT IT30527/78A patent/IT1101523B/it active
- 1978-12-04 US US05/966,453 patent/US4272820A/en not_active Expired - Lifetime
- 1978-12-04 NL NL7811815A patent/NL7811815A/xx not_active Application Discontinuation
- 1978-12-04 SE SE7812436A patent/SE7812436L/xx unknown
- 1978-12-05 BR BR7807987A patent/BR7807987A/pt unknown
- 1978-12-05 IL IL56131A patent/IL56131A0/xx unknown
- 1978-12-05 GB GB7847226A patent/GB2010041B/en not_active Expired
- 1978-12-05 BE BE192153A patent/BE872541A/xx unknown
- 1978-12-05 ES ES475715A patent/ES475715A1/es not_active Expired
- 1978-12-06 FR FR7834366A patent/FR2411420A1/fr active Granted
- 1978-12-06 DD DD78209557A patent/DD140202A5/de unknown
- 1978-12-07 JP JP15061178A patent/JPS5491090A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL7811815A (nl) | 1979-06-11 |
| JPS5491090A (en) | 1979-07-19 |
| GB2010041A (en) | 1979-06-20 |
| DE2754361C2 (de) | 1983-07-14 |
| FR2411420A1 (fr) | 1979-07-06 |
| IT7830527A0 (it) | 1978-12-04 |
| GB2010041B (en) | 1982-05-26 |
| FR2411420B1 (xx) | 1982-02-05 |
| US4272820A (en) | 1981-06-09 |
| IL56131A0 (en) | 1979-03-12 |
| IT1101523B (it) | 1985-10-07 |
| DE2754361A1 (de) | 1979-06-13 |
| BE872541A (fr) | 1979-06-05 |
| BR7807987A (pt) | 1979-07-31 |
| SE7812436L (sv) | 1979-06-08 |
| ES475715A1 (es) | 1979-11-01 |
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