JP6727880B2 - 撮影装置および撮影方法 - Google Patents
撮影装置および撮影方法 Download PDFInfo
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- 238000003384 imaging method Methods 0.000 title claims description 37
- 230000035945 sensitivity Effects 0.000 claims description 111
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- 230000001276 controlling effect Effects 0.000 claims description 17
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- 230000004907 flux Effects 0.000 claims description 8
- 241000287532 Colaptes Species 0.000 description 29
- 238000010586 diagram Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
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- 238000000034 method Methods 0.000 description 3
- 230000011514 reflex Effects 0.000 description 3
- 230000001702 transmitter Effects 0.000 description 3
- 230000004397 blinking Effects 0.000 description 2
- 230000002093 peripheral Effects 0.000 description 2
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- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
- H04N5/225—Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
- H04N5/235—Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
- H04N5/225—Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
- H04N5/232—Devices for controlling television cameras, e.g. remote control ; Control of cameras comprising an electronic image sensor
- H04N5/23245—Operation mode switching of cameras, e.g. between still/video, sport/normal or high/low resolution mode
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
- G03B7/0805—Setting of priority modes
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
- G03B7/0807—Control circuits
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
- G03B7/091—Digital circuits
- G03B7/095—Digital circuits for control of aperture
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
- G03B7/091—Digital circuits
- G03B7/097—Digital circuits for control of both exposure time and aperture
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
- H04N5/225—Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
- H04N5/235—Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor
- H04N5/2351—Circuitry for evaluating the brightness variations of the object
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
- H04N5/225—Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
- H04N5/235—Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor
- H04N5/2352—Combination of two or more compensation controls
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
- H04N5/225—Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
- H04N5/235—Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor
- H04N5/2353—Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor by influencing the exposure time, e.g. shutter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
- H04N5/225—Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
- H04N5/235—Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor
- H04N5/2355—Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor by increasing the dynamic range of the final image compared to the dynamic range of the electronic image sensor, e.g. by adding correct exposed portions of short and long exposed images
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
- H04N5/225—Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
- H04N5/235—Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor
- H04N5/238—Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor by influencing the optical part of the camera, e.g. diaphragm, intensifier, fibre bundle
Description
第3の発明に係る撮影装置は、上記第1の発明において、撮像する動画の品位の度合の限界を設定する品位限界設定手段を有し、上記限界露出制御値設定手段は、上記設定された動画の品位の限界に基づいて上記限界露出制御値を設定する。
第5の発明に係る撮影装置は、上記第4の発明において、露出モード設定手段を有し、上記露出モード設定手段により露出モードとしてシャッタ速度優先モードが設定される場合に、上記第2の露出制御部は、上記撮像部の撮影感度を変更して露出を制御する。
第7の発明に係る撮影装置は、上記第6の発明において、露出モード設定手段を有し、上記露出モード設定手段により露出モードとしてプログラムモードが設定される場合に、上記第2の露出制御部は、上記撮像部の電子シャッタ速度を変更して露出を制御する。
(1)ΔEvに基づいて、「Av(絞り)での追従」、「Sv(感度)またはTv(シャッタ速)での追従」のいずれを優先するか判定する。
(2)上述の(1)の判定の結果、「SvまたはTvでの追従」となった場合であっても、品位の限界に達している場合は、Avによる露出追従に切り替える。例えば、被写体輝度がゆっくり変化し続けた場合は、極力SvまたはTvで露出追従するが、露出追従中にSvまたはTvの品位限界に到達した場合には、Avで露出追従に切り替える。
(3)上述の(2)の処理の結果Avに切り替え後、Avの露出限界を超えた場合は、SvまたはTvの上昇に伴う品位の弊害を許容して、再度SvまたはTvによる露出追従を行う。
Claims (8)
- 撮影光学系を有し、撮影光学系を通過する光束を受光して撮像し、撮像信号を出力する撮像部を有する撮影装置において、
上記撮影光学系に含まれ、開口を有し上記光束を制限する絞りと、
上記絞りの開口を変更して上記撮像部の露出を制御する第1の露出制御部と、
上記絞りの開口を変更しないで上記撮像部の露出を制御する第2の露出制御部と、
上記撮像部が出力する撮像信号に基づいて適正露出量と現在設定されている実露出量の偏差を算出する露出量偏差算出部と、
上記偏差に基づいて第1の露出制御部または第2の露出制御部を選択して露出を制御させる制御部と、
撮像する画像の品位の限界となる上記第2の露出制御部の限界露出制御値を設定する限界露出制御値設定手段と、
を有し、
上記制御部は、上記第2の露出制御部を選択している場合に、上記第2の露出制御部の露出制御値が上記限界露出制御値に達すると、上記第1の露出制御部を選択して露出を制御させることを特徴とする撮影装置。 - 上記制御部は、上記第1の露出制御部を選択している場合に、上記第1の露出制御部の露出制御値が上記絞りの開口限界に対応する露出制御値に達すると、上記第2の露出制御部を選択して露出を制御させることを特徴とする請求項1に記載の撮影装置。
- 撮像する動画の品位の度合の限界を設定する品位限界設定手段を有し、
上記限界露出制御値設定手段は、上記設定された動画の品位の限界に基づいて上記限界露出制御値を設定することを特徴とする請求項1の撮影装置。 - 上記第2の露出制御部は、上記撮像部の撮影感度を変更して露出を制御することを特徴とする請求項1ないし3のいずれか1項に記載の撮影装置。
- 露出モード設定手段を有し、
上記露出モード設定手段により露出モードとしてシャッタ速度優先モードが設定される場合に、
上記第2の露出制御部は、上記撮像部の撮影感度を変更して露出を制御することを特徴とする請求項4に記載の撮影装置。 - 上記第2の露出制御部は、上記撮像部の電子シャッタ速度を変更して露出を制御することを特徴とする請求項1ないし3のいずれか1項に記載の撮影装置。
- 露出モード設定手段を有し、
上記露出モード設定手段により露出モードとしてプログラムモードが設定される場合に、
上記第2の露出制御部は、上記撮像部の電子シャッタ速度を変更して露出を制御することを特徴とする請求項6に記載の撮影装置。 - 撮影光学系と、該撮影光学系を通過する光束を受光して撮像し、撮像信号を出力する撮像部と、上記撮影光学系に含まれ、開口を有し上記光束を制限する絞りを有する撮影装置の撮像方法において、
上記撮像部が出力する撮像信号に基づいて適正露出量と現在設定されている実露出量の偏差を算出する露出量偏差算出ステップと、
上記絞りの開口を変更して上記撮像部の露出を制御する第1の露出制御ステップと、
上記絞りの開口を変更しないで上記撮像部の露出を制御する第2の露出制御ステップと、
上記偏差に基づいて第1の露出制御ステップまたは第2の露出制御ステップを選択して露出を制御させる制御ステップと、
撮像する画像の品位の限界となる上記第2の露出制御ステップの限界露出制御値を設定する限界露出制御値設定ステップと、
上記第2の露出制御ステップを選択している場合に、上記第2の露出制御ステップの露出制御値が上記限界露出制御値に達すると、上記第1の露出制御ステップを選択する選択ステップと、
を有することを特徴とする撮影方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2016067960A JP6727880B2 (ja) | 2016-03-30 | 2016-03-30 | 撮影装置および撮影方法 |
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Application Number | Priority Date | Filing Date | Title |
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JP2016067960A JP6727880B2 (ja) | 2016-03-30 | 2016-03-30 | 撮影装置および撮影方法 |
US15/471,480 US9967460B2 (en) | 2016-03-30 | 2017-03-28 | Photographing apparatus and photographing method |
CN201710196016.8A CN107277382A (zh) | 2016-03-30 | 2017-03-29 | 拍摄装置和拍摄方法 |
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JP2017183999A JP2017183999A (ja) | 2017-10-05 |
JP6727880B2 true JP6727880B2 (ja) | 2020-07-22 |
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JP (1) | JP6727880B2 (ja) |
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JP6797564B2 (ja) * | 2016-06-01 | 2020-12-09 | オリンパス株式会社 | 位相物体可視化装置、位相物体可視化方法 |
CN108683858A (zh) * | 2018-08-16 | 2018-10-19 | Oppo广东移动通信有限公司 | 拍照优化方法、装置、存储介质及终端设备 |
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JPH05188426A (ja) * | 1992-01-10 | 1993-07-30 | Nikon Corp | ズームカメラ |
US5664243A (en) * | 1995-06-08 | 1997-09-02 | Minolta Co., Ltd. | Camera |
US8345120B2 (en) * | 2004-04-06 | 2013-01-01 | Nikon Corporation | Electronic camera with self-adjusting flash and image-capture sensitivity |
JP2006215310A (ja) | 2005-02-04 | 2006-08-17 | Canon Inc | 交換レンズシステム |
JP5130675B2 (ja) * | 2006-08-11 | 2013-01-30 | 株式会社ニコン | デジタルカメラ、および画像処理プログラム |
JP5221931B2 (ja) * | 2007-10-31 | 2013-06-26 | キヤノン株式会社 | 撮像装置及びその制御方法 |
JP2009232275A (ja) * | 2008-03-24 | 2009-10-08 | Olympus Imaging Corp | 撮像装置 |
KR101594294B1 (ko) * | 2009-04-14 | 2016-02-26 | 삼성전자주식회사 | 화이트 장면 인식을 위한 디지털 영상 신호 처리 방법, 상기 방법을 실행하는 디지털 영상 신호 처리 장치 및 상기 방법을 기록한 기록 매체 |
JP5550304B2 (ja) * | 2009-10-19 | 2014-07-16 | キヤノン株式会社 | 撮像装置 |
JP5495841B2 (ja) * | 2010-02-22 | 2014-05-21 | オリンパスイメージング株式会社 | カメラ及びカメラの制御方法 |
JP6214206B2 (ja) * | 2013-05-13 | 2017-10-18 | キヤノン株式会社 | 撮像装置、制御方法及びプログラム |
KR20150056980A (ko) * | 2013-11-18 | 2015-05-28 | 삼성전자주식회사 | 멀티 디스플레이의 색편차 보정용 카메라의 제어 방법 및 장치 |
US9294687B2 (en) * | 2013-12-06 | 2016-03-22 | Intel Corporation | Robust automatic exposure control using embedded data |
JP6278713B2 (ja) * | 2014-01-20 | 2018-02-14 | オリンパス株式会社 | 撮像装置および撮像方法 |
US9813635B2 (en) * | 2015-08-24 | 2017-11-07 | Motorola Mobility Llc | Method and apparatus for auto exposure value detection for high dynamic range imaging |
-
2016
- 2016-03-30 JP JP2016067960A patent/JP6727880B2/ja active Active
-
2017
- 2017-03-28 US US15/471,480 patent/US9967460B2/en active Active
- 2017-03-29 CN CN201710196016.8A patent/CN107277382A/zh not_active Application Discontinuation
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JP2017183999A (ja) | 2017-10-05 |
CN107277382A (zh) | 2017-10-20 |
US20170289452A1 (en) | 2017-10-05 |
US9967460B2 (en) | 2018-05-08 |
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