JP4035320B2 - パネル検出器のピクセル置換の方法及び装置 - Google Patents
パネル検出器のピクセル置換の方法及び装置 Download PDFInfo
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- JP4035320B2 JP4035320B2 JP2001388709A JP2001388709A JP4035320B2 JP 4035320 B2 JP4035320 B2 JP 4035320B2 JP 2001388709 A JP2001388709 A JP 2001388709A JP 2001388709 A JP2001388709 A JP 2001388709A JP 4035320 B2 JP4035320 B2 JP 4035320B2
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Images
Classifications
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- 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
- A61B6/58—Testing, adjusting or calibrating thereof
- A61B6/582—Calibration
- A61B6/585—Calibration of detector units
-
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/401—Compensating positionally unequal response of the pick-up or reproducing head
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
- H04N25/68—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to defects
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Heart & Thoracic Surgery (AREA)
- Multimedia (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Biophysics (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Signal Processing (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- High Energy & Nuclear Physics (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Image Processing (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Image Input (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Facsimile Image Signal Circuits (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/746830 | 2000-12-22 | ||
| US09/746,830 US6498831B2 (en) | 2000-12-22 | 2000-12-22 | Panel detector pixel replacement method and apparatus |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2003023572A JP2003023572A (ja) | 2003-01-24 |
| JP2003023572A5 JP2003023572A5 (https=) | 2005-07-28 |
| JP4035320B2 true JP4035320B2 (ja) | 2008-01-23 |
Family
ID=25002525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001388709A Expired - Fee Related JP4035320B2 (ja) | 2000-12-22 | 2001-12-21 | パネル検出器のピクセル置換の方法及び装置 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US6498831B2 (https=) |
| JP (1) | JP4035320B2 (https=) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4532730B2 (ja) * | 2000-12-26 | 2010-08-25 | キヤノン株式会社 | 撮像装置及び撮像方法 |
| US7453066B2 (en) * | 2001-01-06 | 2008-11-18 | Koninklijke Philips Electronics N.V. | Method and apparatus to recover a dead pixel in digital imaging systems |
| US6900836B2 (en) * | 2001-02-19 | 2005-05-31 | Eastman Kodak Company | Correcting defects in a digital image caused by a pre-existing defect in a pixel of an image sensor |
| US6726103B1 (en) * | 2001-11-07 | 2004-04-27 | Pixim, Inc. | Imaging system with built-in diagnostics |
| US6895077B2 (en) * | 2001-11-21 | 2005-05-17 | University Of Massachusetts Medical Center | System and method for x-ray fluoroscopic imaging |
| US7068313B2 (en) * | 2002-02-08 | 2006-06-27 | Wallac Oy | Method and arrangement for processing measurement data |
| US7064768B1 (en) * | 2002-03-20 | 2006-06-20 | Ess Technology, Inc. | Bad pixel correction while preserving features |
| FR2846504B1 (fr) * | 2002-10-29 | 2005-04-08 | Ge Med Sys Global Tech Co Llc | Procede de determination d'un bruit fluoroscopique |
| US7620241B2 (en) * | 2004-11-30 | 2009-11-17 | Hewlett-Packard Development Company, L.P. | Artifact reduction in a digital video |
| US7440608B2 (en) | 2005-05-31 | 2008-10-21 | Hewlett-Packard Development Company, L.P. | Method and system for detecting image defects |
| WO2007036055A1 (en) * | 2005-09-30 | 2007-04-05 | Simon Fraser University | Methods and apparatus for detecting defects in imaging arrays by image analysis |
| US7710472B2 (en) * | 2006-05-01 | 2010-05-04 | Warner Bros. Entertainment Inc. | Detection and/or correction of suppressed signal defects in moving images |
| CN101329281B (zh) * | 2007-06-20 | 2011-08-10 | 佛山普立华科技有限公司 | 影像感测晶片污点检测系统及其检测方法 |
| GB0724983D0 (en) * | 2007-12-21 | 2008-01-30 | Cmosis Nv | Pixel array with reduced sensitivity to defects |
| US8237825B2 (en) | 2008-12-11 | 2012-08-07 | Exelis, Inc. | Pixel replacement using five nearest neighbors |
| US9144412B2 (en) * | 2012-06-29 | 2015-09-29 | Analogic Corporation | Contactless information transfer in CT imaging modality |
| DE102014219163B4 (de) * | 2014-09-23 | 2016-12-15 | Siemens Healthcare Gmbh | Elektronische Korrektur von durch Defekte eines Röntgendetektors hervorgerufenen Bildartefakten |
| DE102015213911B4 (de) * | 2015-07-23 | 2019-03-07 | Siemens Healthcare Gmbh | Verfahren zum Erzeugen eines Röntgenbildes und Datenverarbeitungseinrichtung zum Ausführen des Verfahrens |
| US12033324B2 (en) | 2019-06-06 | 2024-07-09 | The Research Foundation For The State University Of New York | System and method for identifying fractures in digitized x-rays |
| CN111053568B (zh) * | 2019-12-30 | 2021-10-08 | 苏州瑞派宁科技有限公司 | Ct图像中环形伪影的校正方法、装置及计算机存储介质 |
| CN111728631A (zh) * | 2020-07-30 | 2020-10-02 | 上海联影医疗科技有限公司 | Pet系统探测数据修正方法、装置和计算机设备 |
| US11742175B2 (en) * | 2021-06-30 | 2023-08-29 | Fei Company | Defective pixel management in charged particle microscopy |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3125124B2 (ja) * | 1994-06-06 | 2001-01-15 | 松下電器産業株式会社 | 欠陥画素傷補正回路 |
| US6002433A (en) * | 1995-08-29 | 1999-12-14 | Sanyo Electric Co., Ltd. | Defective pixel detecting circuit of a solid state image pick-up device capable of detecting defective pixels with low power consumption and high precision, and image pick-up device having such detecting circuit |
| US6104839A (en) * | 1995-10-16 | 2000-08-15 | Eastman Kodak Company | Method and apparatus for correcting pixel values in a digital image |
| US5875040A (en) * | 1995-12-04 | 1999-02-23 | Eastman Kodak Company | Gradient based method for providing values for unknown pixels in a digital image |
| US6359967B1 (en) * | 1998-11-25 | 2002-03-19 | General Electric Company | Method and apparatus for scan charge compensation in a digital detector |
-
2000
- 2000-12-22 US US09/746,830 patent/US6498831B2/en not_active Expired - Lifetime
-
2001
- 2001-12-21 JP JP2001388709A patent/JP4035320B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003023572A (ja) | 2003-01-24 |
| US20020080917A1 (en) | 2002-06-27 |
| US6498831B2 (en) | 2002-12-24 |
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