NL193182C - Inrichting voor het maken van een angiografie voorzien van middelen voor het verschaffen van een homogene achtergrond. - Google Patents
Inrichting voor het maken van een angiografie voorzien van middelen voor het verschaffen van een homogene achtergrond. Download PDFInfo
- Publication number
- NL193182C NL193182C NL8403468A NL8403468A NL193182C NL 193182 C NL193182 C NL 193182C NL 8403468 A NL8403468 A NL 8403468A NL 8403468 A NL8403468 A NL 8403468A NL 193182 C NL193182 C NL 193182C
- Authority
- NL
- Netherlands
- Prior art keywords
- contrast
- image
- mtf
- function
- ideal
- Prior art date
Links
- 238000002583 angiography Methods 0.000 title claims description 9
- 210000004204 blood vessel Anatomy 0.000 claims description 31
- 239000002872 contrast media Substances 0.000 claims description 11
- 238000012546 transfer Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 4
- 239000008280 blood Substances 0.000 claims description 2
- 210000004369 blood Anatomy 0.000 claims description 2
- 238000012887 quadratic function Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 11
- 238000003384 imaging method Methods 0.000 description 7
- 238000012937 correction Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000005316 response function Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002594 fluoroscopy Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/90—Dynamic range modification of images or parts thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/30—Transforming light or analogous information into electric information
- H04N5/32—Transforming X-rays
- H04N5/321—Transforming X-rays with video transmission of fluoroscopic images
- H04N5/325—Image enhancement, e.g. by subtraction techniques using polyenergetic X-rays
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
- H05G1/60—Circuit arrangements for obtaining a series of X-ray photographs or for X-ray cinematography
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10116—X-ray image
- G06T2207/10121—Fluoroscopy
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30004—Biomedical image processing
- G06T2207/30101—Blood vessel; Artery; Vein; Vascular
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Image Processing (AREA)
- Closed-Circuit Television Systems (AREA)
- Controls And Circuits For Display Device (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IL7021483 | 1983-11-13 | ||
| IL70214A IL70214A (en) | 1983-11-13 | 1983-11-13 | Image contrast enhancement arrangement |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NL8403468A NL8403468A (nl) | 1985-06-03 |
| NL193182B NL193182B (nl) | 1998-10-01 |
| NL193182C true NL193182C (nl) | 1999-02-02 |
Family
ID=11054673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8403468A NL193182C (nl) | 1983-11-13 | 1984-11-13 | Inrichting voor het maken van een angiografie voorzien van middelen voor het verschaffen van een homogene achtergrond. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4907288A (fr) |
| JP (1) | JP2575612B2 (fr) |
| DE (1) | DE3441162C2 (fr) |
| FR (1) | FR2555003B1 (fr) |
| IL (1) | IL70214A (fr) |
| NL (1) | NL193182C (fr) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2595153B1 (fr) * | 1986-02-28 | 1990-12-07 | Thomson Cgr | Systeme d'imagerie numerique a reglage de l'echelle des gris, notamment pour la visualisation des vaisseaux sanguins |
| JPH01248187A (ja) * | 1988-03-30 | 1989-10-03 | Toshiba Corp | ディスプレイシステム |
| GB8813514D0 (en) * | 1988-06-08 | 1988-07-13 | Quantel Ltd | Image enhancement |
| FR2633746A1 (fr) * | 1988-07-01 | 1990-01-05 | Labo Electronique Physique | Methode numerique de modification d'image et systeme de mise en oeuvre |
| NL8900217A (nl) * | 1989-01-30 | 1990-08-16 | Philips Nv | Werkwijze voor het bepalen van een modulatie overdrachtfunctie van een digitaal beeldvormend systeem. |
| FR2648302A1 (fr) * | 1989-06-09 | 1990-12-14 | Peugeot | Procede de traitement d'un signal composite video d'une scene a examiner |
| DE69032837T2 (de) * | 1989-09-22 | 1999-05-12 | Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa | Verfahren und Gerät zur Energiesubtraktionsverarbeitung, Verfahren und Gerät zur Superpositionsverarbeitung, und Gerät zur Strahlungsbildauslesung |
| CA2028092C (fr) * | 1989-10-23 | 1996-08-06 | Yuji Tanaka | Appareil de traitement d'images binaires |
| NL9001265A (nl) * | 1990-06-05 | 1992-01-02 | Philips Nv | Werkwijze voor bepaling van een modulatie-overdrachtfunctie van een digitaal beeldvormend systeem. |
| US5359675A (en) * | 1990-07-26 | 1994-10-25 | Ronald Siwoff | Video spectacles |
| US5125046A (en) * | 1990-07-26 | 1992-06-23 | Ronald Siwoff | Digitally enhanced imager for the visually impaired |
| FR2666426B1 (fr) * | 1990-08-31 | 1994-08-19 | Gen Electric Cgr | Procede de correction des mesures de densite optique effectuees sur un film radiographique. |
| FR2670979A1 (fr) * | 1990-12-21 | 1992-06-26 | Philips Electronique Lab | Procede de segmentation binaire locale d'images numerisees, par seuillage d'histogramme. |
| US5271064A (en) * | 1991-06-14 | 1993-12-14 | University Of Cincinnati | Apparatus and method for smoothing regions and enhancing edges in gray scale images |
| US6466689B1 (en) * | 1991-11-22 | 2002-10-15 | Arch Development Corp. | Method and system for digital radiography |
| US5297550A (en) * | 1992-08-06 | 1994-03-29 | Picker International, Inc. | Background darkening of magnetic resonance angiographic images |
| US5297551A (en) * | 1992-08-06 | 1994-03-29 | Picker International, Inc. | Weighted ray projection imaging for MR angiography |
| GB9420654D0 (en) * | 1994-10-13 | 1994-11-30 | Kodak Ltd | A method for improving the contrast in photographic film materials |
| DE69623884T2 (de) * | 1995-07-25 | 2003-05-28 | Kabushiki Kaisha Toyota Chuo Kenkyusho, Aichi | Bildverarbeitungsvorrichtung |
| JPH09261490A (ja) * | 1996-03-22 | 1997-10-03 | Minolta Co Ltd | 画像形成装置 |
| US6864888B1 (en) * | 1999-02-25 | 2005-03-08 | Lockheed Martin Corporation | Variable acuity rendering for a graphic image processing system |
| GB9904692D0 (en) * | 1999-03-01 | 1999-04-21 | Isis Innovation | X-ray image processing |
| GB0028491D0 (en) * | 2000-11-22 | 2001-01-10 | Isis Innovation | Detection of features in images |
| JP2002271611A (ja) * | 2001-03-14 | 2002-09-20 | Fujitsu Ltd | 画像処理装置 |
| US20030160800A1 (en) | 2002-02-22 | 2003-08-28 | Agfa-Gevaert | Multiscale gradation processing method |
| TWI237497B (en) * | 2004-05-07 | 2005-08-01 | Quanta Comp Inc | High speed and high accuracy image adjust apparatus and method |
| US20060056722A1 (en) * | 2004-09-14 | 2006-03-16 | Nathan Moroney | Edge preserving method and apparatus for image processing |
| DE102004049227B4 (de) * | 2004-10-08 | 2007-03-01 | Yxlon International Security Gmbh | Verfahren zur Bestimmung der Lageänderung eines Objekts in einem Gepäckstück |
| JP2009211313A (ja) * | 2008-03-03 | 2009-09-17 | Fujitsu Ltd | 画像処理装置、画像処理方法および画像処理プログラム |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4193089A (en) * | 1976-03-05 | 1980-03-11 | Picker Corporation | Television radiation imaging system and method |
| JPS5914790B2 (ja) * | 1976-08-16 | 1984-04-06 | 富士電機株式会社 | 光学的識別装置 |
| US4156914A (en) * | 1977-08-18 | 1979-05-29 | Baird Corporation | Computer image display system and processor therefor |
| US4315318A (en) * | 1978-12-26 | 1982-02-09 | Fuji Photo Film Co., Ltd. | Method and apparatus for processing a radiation image |
| US4317179A (en) * | 1978-12-26 | 1982-02-23 | Fuji Photo Film Co., Ltd. | Method and apparatus for processing a radiographic image |
| JPS5691735A (en) * | 1979-12-25 | 1981-07-24 | Fuji Photo Film Co Ltd | Method and apparatus for treating xxray image |
| SE426281B (sv) * | 1981-05-05 | 1982-12-20 | Ericsson Telefon Ab L M | Forfarande for visning pa en bildskerm av utsignaler fran en stralningskenslig detektor |
| US4394688A (en) * | 1981-08-25 | 1983-07-19 | Hamamatsu Systems, Inc. | Video system having an adjustable digital gamma correction for contrast enhancement |
| JPS5834677A (ja) * | 1981-08-25 | 1983-03-01 | Matsushita Graphic Commun Syst Inc | 画情報読取装置のｍｔｆ補正方式 |
| US4517607A (en) * | 1981-11-09 | 1985-05-14 | Ricoh Company, Ltd. | Method of and apparatus for compensating image in image reproduction system |
| US4438495A (en) * | 1981-11-13 | 1984-03-20 | General Electric Company | Tomography window-level gamma functions |
| US4456926A (en) * | 1982-06-21 | 1984-06-26 | Thomson-Csf Broadcast, Inc. | Enhancement of fluroscopically generated images |
| JPS5928144A (ja) * | 1982-08-09 | 1984-02-14 | Fuji Photo Film Co Ltd | 放射線画像再生装置 |
| US4559557A (en) * | 1984-06-01 | 1985-12-17 | General Electric Company | Region-of-interest digital subtraction angiography |
-
1983
- 1983-11-13 IL IL70214A patent/IL70214A/xx unknown
-
1984
- 1984-11-10 DE DE3441162A patent/DE3441162C2/de not_active Expired - Lifetime
- 1984-11-12 FR FR848417206A patent/FR2555003B1/fr not_active Expired - Lifetime
- 1984-11-13 JP JP59239290A patent/JP2575612B2/ja not_active Expired - Fee Related
- 1984-11-13 NL NL8403468A patent/NL193182C/nl not_active IP Right Cessation
-
1987
- 1987-09-16 US US07/098,742 patent/US4907288A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US4907288A (en) | 1990-03-06 |
| JPS60169980A (ja) | 1985-09-03 |
| FR2555003B1 (fr) | 1991-11-29 |
| JP2575612B2 (ja) | 1997-01-29 |
| FR2555003A1 (fr) | 1985-05-17 |
| DE3441162C2 (de) | 1994-01-13 |
| IL70214A (en) | 1987-10-20 |
| NL8403468A (nl) | 1985-06-03 |
| DE3441162A1 (de) | 1985-07-25 |
| IL70214A0 (en) | 1984-02-29 |
| NL193182B (nl) | 1998-10-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BA | A request for search or an international-type search has been filed | ||
| BB | A search report has been drawn up | ||
| BC | A request for examination has been filed | ||
| V4 | Discontinued because of reaching the maximum lifetime of a patent |
Effective date: 20041113 |