JP6150944B2 - 撮像システム - Google Patents
撮像システム Download PDFInfo
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- JP6150944B2 JP6150944B2 JP2016520121A JP2016520121A JP6150944B2 JP 6150944 B2 JP6150944 B2 JP 6150944B2 JP 2016520121 A JP2016520121 A JP 2016520121A JP 2016520121 A JP2016520121 A JP 2016520121A JP 6150944 B2 JP6150944 B2 JP 6150944B2
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- 238000003384 imaging method Methods 0.000 title claims description 49
- 238000005286 illumination Methods 0.000 claims description 23
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- 230000006870 function Effects 0.000 claims description 4
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- 238000012538 light obscuration Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 26
- 238000003860 storage Methods 0.000 description 20
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- 238000001444 catalytic combustion detection Methods 0.000 description 10
- 238000001514 detection method Methods 0.000 description 10
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- 238000012546 transfer Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 4
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- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00004—Operational features of endoscopes characterised by electronic signal processing
- A61B1/00009—Operational features of endoscopes characterised by electronic signal processing of image signals during a use of endoscope
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00043—Operational features of endoscopes provided with output arrangements
- A61B1/00045—Display arrangement
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/045—Control thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
- A61B1/051—Details of CCD assembly
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/0655—Control therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/0661—Endoscope light sources
- A61B1/0676—Endoscope light sources at distal tip of an endoscope
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/0661—Endoscope light sources
- A61B1/0684—Endoscope light sources using light emitting diodes [LED]
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2407—Optical details
- G02B23/2461—Illumination
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/71—Charge-coupled device [CCD] sensors; Charge-transfer registers specially adapted for CCD sensors
- H04N25/75—Circuitry for providing, modifying or processing image signals from the pixel array
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/0638—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements providing two or more wavelengths
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/555—Constructional details for picking-up images in sites, inaccessible due to their dimensions or hazardous conditions, e.g. endoscopes or borescopes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/63—Control of cameras or camera modules by using electronic viewfinders
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/71—Circuitry for evaluating the brightness variation
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Medical Informatics (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Radiology & Medical Imaging (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Endoscopes (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Studio Devices (AREA)
Description
図1は、第1の実施形態に係る内視鏡システムを示すブロック図である。
次に、第2の実施形態について説明する。
次に、第3の実施形態について説明する。
Claims (8)
- 被写体に対して照明光を供給し、任意のデューティ幅でPWM可能な光源と、
前記PWMによる光量制御を許可する期間を示す数値のデータが入力可能であり、前記データの前記数値を最大のデューティ幅とし、該最大のデューティ幅から最小のデューティ幅の間でデューティ幅を設定する第1の制御を前記光源に行う光源制御部と、
を有する光源装置と、
前記光源装置と別体に設けられ、前記PWMによる光量制御を許可する期間を示す数値のデータが格納され、かつ前記光源装置に着脱可能な撮像装置と、
前記撮像装置に格納された前記データを読み出し、前記データの数値を前記光源制御部における前記最大のデューティ幅に設定する読み出し部と、
を具備することを特徴とする撮像システム。 - 前記光源制御部は、更に、前記第1の制御により前記最小のデューティ幅になった後にさらに前記PWMによる光量制御を許可する期間以外における発光を制御する第2の制御を前記光源に行うことを特徴とする請求項1に記載の撮像システム。
- 前記光源制御部において、前記第2の制御として、前記PWMによる光量制御を許可する期間以外に前記被写体に対する前記照明光を供給せず、前記PWMによる光量制御を許可する期間に前記被写体に対する前記照明光を供給する制御を行うことを特徴とする請求項2に記載の撮像システム。
- 前記光源制御部は、前記光源に供給する駆動電流の振幅を、供給しえる最大値と最小値との間で増減させるように制御する第3の制御を行い、前記第3の制御後にさらに前記照明光の光量を制限する必要がある場合に前記第1の制御を行うことを特徴とする請求項2に記載の撮像システム。
- 前記光源制御部は、前記第2の制御として、前記PWMによる光量制御を許可する期間以外に前記被写体に対する前記照明光を供給せず、前記期間以外に供給されている光量積分値と等しい光量積分値の光を前記PWMによる光量制御を許可する期間内に供給するように前記照明光の供給タイミングを変更する制御を行い、
前記撮像装置は、さらに、前記照明光の供給タイミング変更後の前記光源に供給する駆動電流の値と、パルス幅の値とを表すデータが格納されていることを特徴とする請求項2に記載の撮像システム。 - 前記光源は、複数の半導体光源からなり、
前記光源制御部は、前記複数の半導体光源の中の1つの半導体光源の発光パターンを制御するとともに、前記複数の半導体光源のうちの他の前記半導体光源の発光パターンを、前記1つの半導体光源に追従させて制御することを特徴とする請求項1に記載の撮像システム。 - 前記光源制御部は、前記光源からの前記照明光の立ち上がりのタイミング及び立ち下がりのタイミングを表す発光情報を記憶するメモリを有し、前記発光情報に基づいて、前記光源の消灯開始タイミングを補正することを特徴とする請求項1に記載の撮像システム。
- 前記撮像装置は、前記被写体を撮像する撮像素子を有し、
前記撮像素子が電子シャッタ機能を有する際に、電子シャッタを制御する電子シャッタ制御部を有し、
前記光源制御部は、前記発光情報に基づいて、前記電子シャッタの露光タイミングがPWMによる発光が安定している期間に開始されるシャッタタイミングを検出し、
前記電子シャッタ制御部は、前記光源制御部により検出された前記シャッタタイミングに基づいて、前記電子シャッタを制御することを特徴とする請求項7に記載の撮像システム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014209228 | 2014-10-10 | ||
JP2014209228 | 2014-10-10 | ||
PCT/JP2015/076877 WO2016056388A1 (ja) | 2014-10-10 | 2015-09-24 | 撮像システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2016056388A1 JPWO2016056388A1 (ja) | 2017-04-27 |
JP6150944B2 true JP6150944B2 (ja) | 2017-06-21 |
Family
ID=55653006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016520121A Active JP6150944B2 (ja) | 2014-10-10 | 2015-09-24 | 撮像システム |
Country Status (5)
Country | Link |
---|---|
US (1) | US10531008B2 (ja) |
EP (1) | EP3187098A4 (ja) |
JP (1) | JP6150944B2 (ja) |
CN (1) | CN106793932B (ja) |
WO (1) | WO2016056388A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112017002857T5 (de) | 2016-08-25 | 2019-03-14 | Hoya Corporation | Elektronischer Endoskopprozessor und elektronisches Endoskopsystem |
AU2017387098B2 (en) * | 2016-12-27 | 2022-12-15 | DePuy Synthes Products, Inc. | Systems, methods, and devices for providing illumination in an endoscopic imaging environment |
US20190005677A1 (en) * | 2017-06-28 | 2019-01-03 | Intel IP Corporation | Light source estimation |
EP3685731B1 (en) * | 2017-09-22 | 2023-06-07 | FUJIFILM Corporation | Medical image processing system, endoscope system, diagnostic support device, and medical task support device |
JP2022036326A (ja) * | 2018-08-29 | 2022-03-08 | オリンパス株式会社 | 内視鏡システム |
US11445123B2 (en) | 2020-09-28 | 2022-09-13 | Brompton Technology Ltd. | System and method for PWM control of a video display screen |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007318581A (ja) * | 2006-05-29 | 2007-12-06 | Casio Comput Co Ltd | 撮像装置、撮影補助光源発光/撮像制御方法、および撮影補助光源発光/撮像制御プログラム |
JP5164473B2 (ja) * | 2007-08-10 | 2013-03-21 | オリンパスメディカルシステムズ株式会社 | 内視鏡装置 |
JP2009056248A (ja) * | 2007-09-03 | 2009-03-19 | Fujifilm Corp | 光源装置、および光源装置の駆動制御方法、並びに内視鏡 |
JP2009124260A (ja) * | 2007-11-12 | 2009-06-04 | Ricoh Co Ltd | 撮像装置 |
JP5544231B2 (ja) | 2010-07-15 | 2014-07-09 | 富士フイルム株式会社 | 内視鏡光源装置及び内視鏡システム |
JP5481294B2 (ja) * | 2010-07-15 | 2014-04-23 | 富士フイルム株式会社 | 内視鏡システム |
JP2012075786A (ja) * | 2010-10-05 | 2012-04-19 | Hoya Corp | レンズ位置制御システムおよび内視鏡 |
JP5292379B2 (ja) * | 2010-11-09 | 2013-09-18 | 富士フイルム株式会社 | 内視鏡装置 |
JP5709691B2 (ja) | 2011-08-23 | 2015-04-30 | 富士フイルム株式会社 | 内視鏡装置 |
JP2013048792A (ja) * | 2011-08-31 | 2013-03-14 | Fujifilm Corp | 内視鏡装置 |
EP2698985B1 (en) | 2012-04-16 | 2018-05-30 | Olympus Corporation | Imaging system and imaging method |
WO2013175908A1 (ja) * | 2012-05-25 | 2013-11-28 | オリンパスメディカルシステムズ株式会社 | 撮像システム |
WO2014021022A1 (ja) * | 2012-08-01 | 2014-02-06 | オリンパスメディカルシステムズ株式会社 | 内視鏡装置 |
JP5694492B2 (ja) * | 2013-12-04 | 2015-04-01 | 富士フイルム株式会社 | 内視鏡装置 |
-
2015
- 2015-09-24 WO PCT/JP2015/076877 patent/WO2016056388A1/ja active Application Filing
- 2015-09-24 CN CN201580054560.8A patent/CN106793932B/zh active Active
- 2015-09-24 EP EP15849328.8A patent/EP3187098A4/en not_active Withdrawn
- 2015-09-24 JP JP2016520121A patent/JP6150944B2/ja active Active
-
2017
- 2017-04-04 US US15/478,616 patent/US10531008B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JPWO2016056388A1 (ja) | 2017-04-27 |
EP3187098A1 (en) | 2017-07-05 |
WO2016056388A1 (ja) | 2016-04-14 |
EP3187098A4 (en) | 2018-08-08 |
CN106793932B (zh) | 2019-06-18 |
US10531008B2 (en) | 2020-01-07 |
CN106793932A (zh) | 2017-05-31 |
US20170208236A1 (en) | 2017-07-20 |
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