IL119543A - Methods and apparatus for reducing image artifacts - Google Patents
Methods and apparatus for reducing image artifactsInfo
- Publication number
- IL119543A IL119543A IL11954396A IL11954396A IL119543A IL 119543 A IL119543 A IL 119543A IL 11954396 A IL11954396 A IL 11954396A IL 11954396 A IL11954396 A IL 11954396A IL 119543 A IL119543 A IL 119543A
- Authority
- IL
- Israel
- Prior art keywords
- image data
- background image
- sharp structure
- data
- image
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 238000000547 structure data Methods 0.000 claims description 3
- 238000002591 computed tomography Methods 0.000 description 19
- 238000003384 imaging method Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000013170 computed tomography imaging Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
- G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/20—Image enhancement or restoration using local operators
-
- 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
- A61B6/027—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/40—Imaging
- G01N2223/419—Imaging computed tomograph
-
- 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
- Theoretical Computer Science (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Radiology & Medical Imaging (AREA)
- Pulmonology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Image Processing (AREA)
- Image Analysis (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/556,252 US5561695A (en) | 1995-11-13 | 1995-11-13 | Methods and apparatus for reducing image artifacts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL119543A0 IL119543A0 (en) | 1997-02-18 |
| IL119543A true IL119543A (en) | 2002-12-01 |
Family
ID=24220551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL11954396A IL119543A (en) | 1995-11-13 | 1996-11-01 | Methods and apparatus for reducing image artifacts |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5561695A (ja) |
| JP (2) | JPH09187452A (ja) |
| DE (1) | DE19634821A1 (ja) |
| IL (1) | IL119543A (ja) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5761267A (en) * | 1996-12-26 | 1998-06-02 | General Electric Company | Methods and apparatus for simplified filtering of scan data in an imaging system |
| US5809105A (en) * | 1997-03-19 | 1998-09-15 | General Electric Company | Noise filter for digital x-ray imaging system |
| EP1164799A1 (en) * | 2000-06-16 | 2001-12-19 | Sony International (Europe) GmbH | Method for processing compressed image data for reducing blocking artefacts |
| US6801646B1 (en) * | 2001-07-19 | 2004-10-05 | Virtualscopics, Llc | System and method for reducing or eliminating streak artifacts and illumination inhomogeneity in CT imaging |
| US6879656B2 (en) * | 2002-07-23 | 2005-04-12 | General Electric Company | Method and apparatus for deriving motion information from projection data |
| AU2003249438A1 (en) * | 2002-08-14 | 2004-03-03 | Koninklijke Philips Electronics N.V. | Method and apparatus for generating improved computer tomography images of natural tissues |
| US7623691B2 (en) * | 2004-08-06 | 2009-11-24 | Kabushiki Kaisha Toshiba | Method for helical windmill artifact reduction with noise restoration for helical multislice CT |
| US8155415B2 (en) * | 2005-07-01 | 2012-04-10 | Siemens Medical Solutions Usa, Inc. | Extension of truncated CT images for use with emission tomography in multimodality medical images |
| EP1941458B1 (en) * | 2005-10-20 | 2018-08-29 | Philips Intellectual Property & Standards GmbH | Automatic adaptive soft tissue thresholding for two-pass ct cone-beam artifact reduction |
| US7925074B2 (en) * | 2006-10-16 | 2011-04-12 | Teradyne, Inc. | Adaptive background propagation method and device therefor |
| US7680240B2 (en) * | 2007-03-30 | 2010-03-16 | General Electric Company | Iterative reconstruction of tomographic image data method and system |
| JP5023281B2 (ja) * | 2008-01-11 | 2012-09-12 | 株式会社島津製作所 | 画像処理方法、その装置並びに断層撮影装置 |
| CN104545962B (zh) * | 2013-10-16 | 2017-08-01 | 通用电气公司 | 可减少图像中的伪影的医学成像方法和系统 |
| JP6793030B2 (ja) * | 2016-12-22 | 2020-12-02 | 株式会社日立製作所 | 医用画像処理装置及びそれを備えたｘ線ｃｔ装置、医用画像処理方法 |
| US20230274475A1 (en) * | 2022-02-25 | 2023-08-31 | GE Precision Healthcare LLC | Computer processing techniques for streak reduction in computed tomography images |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5396418A (en) * | 1988-10-20 | 1995-03-07 | Picker International, Inc. | Four dimensional spiral volume imaging using fast retrace |
| US5400377A (en) * | 1993-07-16 | 1995-03-21 | General Electric Company | Artifact reduction method for tomographic image reconstruction using cross-plane rays |
| US5473655A (en) * | 1994-07-21 | 1995-12-05 | General Electric Company | Artifact reduction by z-dependent filtration of three-dimensional cone beam data |
-
1995
- 1995-11-13 US US08/556,252 patent/US5561695A/en not_active Expired - Lifetime
-
1996
- 1996-08-28 DE DE19634821A patent/DE19634821A1/de not_active Ceased
- 1996-11-01 IL IL11954396A patent/IL119543A/en not_active IP Right Cessation
- 1996-11-12 JP JP8299169A patent/JPH09187452A/ja not_active Ceased
-
2007
- 2007-08-30 JP JP2007224129A patent/JP2007307417A/ja not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| US5561695A (en) | 1996-10-01 |
| JP2007307417A (ja) | 2007-11-29 |
| DE19634821A1 (de) | 1997-05-15 |
| JPH09187452A (ja) | 1997-07-22 |
| IL119543A0 (en) | 1997-02-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FF | Patent granted | ||
| FF | Patent granted | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| MM9K | Patent not in force due to non-payment of renewal fees |