WO2005069604A1 - 撮像装置および撮像方法 - Google Patents
撮像装置および撮像方法 Download PDFInfo
- Publication number
- WO2005069604A1 WO2005069604A1 PCT/JP2005/000483 JP2005000483W WO2005069604A1 WO 2005069604 A1 WO2005069604 A1 WO 2005069604A1 JP 2005000483 W JP2005000483 W JP 2005000483W WO 2005069604 A1 WO2005069604 A1 WO 2005069604A1
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- WO
- WIPO (PCT)
- Prior art keywords
- image
- magnification
- lens
- processing circuit
- signal processing
- Prior art date
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Classifications
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- 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
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
- H04N23/663—Remote control of cameras or camera parts, e.g. by remote control devices for controlling interchangeable camera parts based on electronic image sensor signals
Definitions
- the present invention relates to an imaging device capable of moving a magnification conversion lens on an optical axis of a variable power lens.
- a conventional imaging device has not only a variable power lens but also an extender which is a power conversion lens in order to perform high-power imaging.
- the magnification conversion lens is inserted on the same optical axis as the variable power lens, and changes the focal length of the lens discontinuously.
- the conventional imaging apparatus inserts the extender on the optical axis when the focal length of the variable power lens is insufficient, and Was stretched, and a distant subject was photographed and displayed on the monitor.
- FIG. 9A to FIG. 9C are monitor displays of the extender insertion process.
- FIG. 9A shows the subject displayed on the monitor 62 before the extender was inserted.
- the extender is inserted as shown in FIG. 9B, and the object displayed on the monitor 62 is enlarged by using the extender as shown in FIG. 9C.
- One embodiment of the present invention relates to an imaging device.
- This image pickup device is arranged on the same optical axis as the image pickup device, and a variable power lens for changing the image pickup magnification.
- a magnification conversion lens for converting an imaging magnification to a predetermined multiple, a signal processing circuit for outputting a signal from the imaging device as a video signal, an image recording unit for recording an image, and a magnification conversion lens on the optical axis.
- a signal processing circuit that outputs an image recorded in the image recording unit when the magnification conversion lens is inserted on the optical axis.
- Another embodiment of the present invention relates to an imaging method.
- This imaging method includes a step of inserting a magnification conversion lens for converting an imaging magnification into a predetermined multiple on an optical axis of an imaging element and a variable magnification lens, and a step of inserting a video signal from a signal processing circuit into an image recording unit. And a step of switching the image from the image sensor to an image recorded in the image recording unit and outputting the image.
- the magnification conversion lens is inserted on the optical axis, the image of the image recording unit is output.
- FIG. 1 is a block diagram of an imaging device according to an embodiment of the present invention.
- FIG. 2 is a flowchart for explaining the operation of the imaging apparatus of the present invention.
- FIG. 3 is a diagram showing a relationship between a time axis and an imaging magnification of an output image in the imaging device according to the first embodiment of the present invention.
- FIG. 4 is a diagram showing a relationship between a time axis and an imaging magnification of an output image in an imaging device according to a second embodiment of the present invention.
- FIG. 5 is a diagram showing a relationship between a time axis and an imaging magnification of an output image in an imaging device according to a third embodiment of the present invention.
- FIG. 6 is a diagram showing a relationship between a time axis and an imaging magnification of an output image in an imaging device according to a fourth embodiment of the present invention.
- FIG. 7 is a diagram showing a relationship between a time axis and an imaging magnification of an output image in an imaging device according to a fifth embodiment of the present invention.
- FIG. 8 is a diagram showing a time axis and an output image in an imaging device according to a sixth embodiment of the present invention. Diagram showing the relationship between the image and the imaging magnification
- FIG. 9A is a diagram showing a monitor display in a conventional imaging device.
- FIG. 9B is a diagram showing a monitor display in a conventional imaging device.
- FIG. 9C is a diagram showing a monitor display in a conventional imaging device.
- the imaging device is provided with an imaging device, a variable power lens arranged on the same optical axis as the imaging device, and for changing the imaging magnification, and provided detachably on the optical axis.
- Double A magnification conversion lens for converting the ratio to a predetermined multiple
- a signal processing circuit for outputting a signal from the image sensor as a video signal
- an image recording unit for recording an image
- control for inserting and removing the magnification conversion lens on the optical axis.
- the signal processing circuit outputs an image recorded in the image recording unit when the magnification conversion lens is inserted on the optical axis.
- the image recording section has a configuration for recording a video signal from the signal processing circuit as an image.
- the signal processing circuit has a configuration in which an image recorded in the image recording unit is electronically enlarged and output.
- magnification conversion lens when the magnification conversion lens is attached, an enlarged image can be displayed on the monitor.
- magnification of the magnification process is set to the same magnification ratio as the magnification conversion lens, the user can grasp the angle of view after attaching the magnification conversion lens without waiting for the time required for inserting the magnification conversion lens. .
- the signal processing circuit has a configuration in which an image recorded in the image recording unit is enlarged stepwise.
- the imaging device includes a variable power lens magnification sensor that detects an imaging magnification of the variable power lens, and the signal processing circuit performs a change in the imaging magnification of the variable power lens detected by the variable power lens magnification sensor.
- the image recorded in the image recording unit may be enlarged and output stepwise according to the ratio.
- the signal processing circuit may enlarge the image recorded in the image recording unit stepwise according to the zoom operation.
- control unit may have a configuration for changing the imaging magnification of the variable power lens when the signal processing circuit enlarges and outputs the image stepwise.
- the signal processing circuit may have a configuration in which when the image from the image recording unit is switched to a video having the power of the imaging device, the video is synthesized and the synthesized video is output. Good. Switching from the image of the image recording unit to the image of the image sensor is performed when the insertion of the magnification conversion lens is completed. In this case, the video switching may be started after the insertion is completed. Video switching may also be initiated shortly before insertion is complete.
- This embodiment also discloses an imaging method.
- This imaging method includes a step of inserting a magnification conversion lens for converting an imaging magnification into a predetermined multiple on the optical axis of an imaging element and a magnification lens, and a video signal of a signal processing circuit power as an image in an image recording unit. It includes a step for recording and a step for switching the image from the image sensor to an image recorded in the image recording section and outputting the image.
- the magnification conversion lens is inserted on the optical axis, the image is output to the monitor.
- the frame of the magnification conversion lens that crosses the optical path is not displayed on the monitor. Therefore, an effect of preventing the user from feeling uncomfortable or reducing the size can be obtained.
- FIG. 1 is a block diagram showing a configuration of an imaging device according to the present embodiment.
- the imaging apparatus includes a lens unit 10, an imaging element 20, a signal processing circuit 30, an image recording unit 31, a control unit 40, and an operation unit 50.
- the lens unit 10 mainly includes a first group lens 11, a variable power lens 12, a diaphragm unit 13, a focus lens 14, an extender 15 as a magnification conversion lens, a variable power lens magnification sensor 16, and a variable power lens drive.
- the first group lens 11, the variable power lens 12, the aperture unit 13, and the focus lens 14 are provided on the optical axis L of the image sensor 20 (the lens group, that is, the optical axis L of the optical system).
- the variable power lens 12 is a lens whose focal length can be continuously changed.
- the aperture unit 13 is a circuit for adjusting the exposure.
- the extender 15 is a magnification conversion lens, and can be inserted on the optical axis L of the image sensor 20 to extend the focal length when the focal length of the variable power lens 12 is insufficient.
- the variable power lens magnification sensor 16 is configured to detect the magnification of the variable power lens 12.
- the variable power lens driving unit 17 changes the focal length of the variable power lens 12 according to the operation of the operator.
- the extender driving unit 18 is configured to insert the extender 15 onto the optical axis L of the image sensor 20.
- the imaging element 20 also generates a video signal based on the optical signal power from the lens unit 10.
- the signal processing circuit 30 outputs a video signal from the image sensor 20 as a video signal for monitor output.
- the image recording unit 31 is configured to record an image.
- the image recording unit 31 can output the recorded image to the signal processing circuit 30.
- the image recording unit 31 can record the image signal input from the signal processing circuit 30.
- System The control unit 40 controls the variable-magnification lens driving unit 17, the extender-one driving unit 18, the signal processing circuit 30, and the like in accordance with an operation from the operation unit 50.
- a zoom operation is performed on the operation unit 50 (S200).
- the control unit 40 determines whether or not the operation (zoom magnification) is within the magnification range of the variable power lens 21 (S201). If the zoom operation is within the magnification of the variable power lens 12, the zoom operation is performed without the extender 15 being inserted.
- control unit 40 determines that the zoom operation is an operation exceeding the magnification of the variable power lens 12 (S201, NO)
- the control unit 40 outputs a signal to that effect to the signal processing circuit 30.
- the signal processing circuit 30 records the video from the image sensor 20 as a still image in the image recording unit 31 (S202), and replaces the video from the image sensor 20 with the still image recorded in the image recording unit 31.
- the output image is output (S203).
- control unit 40 controls the extender driving unit 18 to insert and attach the extender 15 between the variable power lens 12 and the image sensor 20 (S204).
- the control unit 40 determines whether or not the insertion of the extender 15 has been completed (S205). When the insertion of the status tender 15 is completed, the control unit 40 sends a signal indicating the completion of the insertion to the signal processing circuit 30. Then, the output video of the signal processing circuit 30 is switched from the image recorded in the image recording unit 31 to the image of the image sensor 20 (S206). The image of the image sensor 20 is an image that has passed through the extender 15.
- the imaging apparatus of the present embodiment while the extender 15 is inserted, that is, while the extender 15 is moving on the optical path, the image recorded in the image recording unit 31 Is output. Therefore, the frame of the extender 15 crossing the optical path is not displayed on the monitor.
- the horizontal axis represents the time for performing the zoom operation
- the vertical axis represents the zoom magnification of the video output from the signal processing circuit 30.
- Z indicates whether or not the zoom lens 12 is Is the maximum magnification
- z is the magnification obtained by multiplying the magnification Z by the magnification of the extender 15.
- a bold line corresponds to a case where the output video is a video from the image sensor 20.
- the thin line corresponds to the case where the output video is based on the image of the image recording unit 31. In this description, the still image enlargement process is based on the center of the subject.
- FIG. 3 the magnification of the variable power lens 12 is increased by the zoom operation. Then, when the maximum magnification z of the variable power lens 12 is
- the extender 15 is inserted on the optical axis L at the corresponding time t.
- the time point t-t is a period during which the extender 15 is being inserted.
- Time t t is a period during which the extender 15 is being inserted.
- the imaging device outputs the video immediately before the extender 15 is inserted. That is, the video of the magnification z is output as a still image.
- the extender 15 is installed
- the image from the image sensor 20 is output.
- variable power lens 12 while the extender 15 is mounted, the magnification of the variable power lens 12 does not change.
- the variable power lens 12 already has the maximum magnification z. Signal processing times
- the magnification of the video output from Road 30 remains at z and will not be further enlarged
- “11t” is a period during which the second extender 15 is inserted on the optical axis L.
- the signal processing circuit 30 enlarges the image of the image
- the signal processing circuit 30 outputs the image of the magnification z as a video.
- the signal processing circuit 30 when the extender 15 is inserted, the signal processing circuit 30 does not directly output the image recorded in the image recording unit 31.
- the signal processing circuit 30 electronically enlarges the image in the image recording unit 31 and modifies the enlarged image. Output to Nita.
- the magnification of the enlargement processing is, for example, the same magnification as the enlargement ratio of the extender 15. In this case, the user can grasp the image when the extender 15 is attached without waiting for the time required for inserting the extender 15.
- a third embodiment of the present invention will be described with reference to FIG.
- the third embodiment is different from the second embodiment in that images are enlarged stepwise and output sequentially.
- This stepwise enlargement process is also performed by the signal processing circuit 30 (the same applies hereinafter).
- a time point t-t is a period during which the extender 15 is inserted on the optical axis L. Book
- the image recorded immediately before the insert of the extender during the period from the time t1 to the time t is used.
- the imaging device When reaching 2, the imaging device outputs an image of the magnification after the extender 15 is inserted. That is, the magnification z
- the number of images output stepwise depends on the time t required for insertion of the extender 15 and the image of the signal processing circuit 30.
- image processing of a plurality of patterns can be considered. For example, at time t
- An image with the magnification z may be output after one. Or, output the image enlarged by one step
- an image of the magnification Z may be output immediately before the time point t. Or one step
- the image in the foreground (one step smaller, image) may be output!
- the image is switched from the image of the image recording unit 31 to the signal of the image sensor 20. Then, in this embodiment, at the time of switching the images, the images are enlarged continuously, and the sense of discomfort given to the user can be reduced. In particular, when the center of the subject has not moved between the times t and t, the processing of the present embodiment
- the fourth embodiment is different from the third embodiment in that the image enlargement ratio (the ratio of increasing Or speed) are different.
- the enlargement ratio the ratio of increasing Or speed
- the 1 2 1 ratio is maintained. Then, the image is enlarged stepwise with the enlargement ratio at time t.
- the zoom-in speed is substantially the same even before and after the attachment of the extender 15. Then, the zoom-up screen can be projected smoothly.
- a video in which the image changes smoothly and continuously can be output, and thus the processing of the present embodiment is effective.
- the ratio of the magnification change may be the ratio of the change at time t! /!
- the ratio of the magnification change may be an average value of the ratio of the change from a certain time before to the time t.
- the rate at which the image is enlarged stepwise is variable according to the operation.
- the fifth embodiment is different from the fourth embodiment.
- the control unit 40 controls the signal processing circuit 30 to adjust the enlargement ratio (enlargement speed) so that the image enlargement ratio (enlargement speed) can be changed according to the operation.
- the present embodiment outputs an image when the extender 15 is inserted on the optical axis L.
- the image is enlarged stepwise in accordance with the operation of the operator. Through such processing, an image can be output to the monitor in a manner close to the operator's will.
- the sixth embodiment is different from the fourth and fifth embodiments in that the time (period) for outputting a video based on the image of the image recording unit 31 is shortened. That is, in the sixth embodiment, the process of restarting the video output of the image sensor 20 is performed earlier.
- the imaging device determines the ratio of the change in the magnification at the time t to the image after the time t.
- the steps It expands on the floor.
- the sixth embodiment not only the enlargement processing of the fourth embodiment, but also the magnification of the variable power lens 12 is reduced at the same time.
- the time point t is determined as a result of the magnification control of the variable power lens 12,
- the image sensor 20 generates a signal of the image obtained through the extender 15.
- the output video is cut into the video of the image sensor 20.
- the sixth embodiment is different from the fourth embodiment in that the magnification reduction and the early switching are performed.
- the imaging device of the present embodiment outputs an image recorded in the image recording unit 31. Then, the imaging device enlarges the image stepwise according to the ratio of the change in the imaging magnification of the variable magnification lens 12 immediately before the insertion and the zoom operation. At the same time, the imaging device changes the imaging magnification of the variable power lens 12. Then, when the magnification of the image and the magnification of the video from the extender 15 become the same, the video output is switched to the signal from the image sensor 20. In the present embodiment, the output time of the image sequentially enlarged and displayed can be shortened as much as possible. Therefore, the actual video can be output faster.
- the magnification of the variable power lens 12 is reduced after time t when an image is output.
- control unit 40 controls the operation of the variable power lens 12 based on the enlargement ratio of the sequentially enlarged image output from the signal processing circuit 30. Further, the control unit 40 controls the operation of the variable power lens 12 while detecting the magnification during operation of the variable power lens 12 by the variable power lens magnification sensor 16. Then, the control unit 40 calculates a time point t at which the image of the image recording unit 30 is switched to the video from the image sensor 20 based on the information. At time t, the magnification ratio of the image and the magnification
- control unit 40 controls the signal processing circuit 30 and The output video is switched at the point t.
- the overlap processing is performed by the signal processing circuit 30.
- the signal processing circuit 30 combines the video from the image sensor 20 and the image read from the image recording unit 31 to generate an overlap image.
- the combining process is started when a notification of the completion of the extender insertion is received from the control unit 40. Then, the combining process is performed over a predetermined combining period (overlap period). During this synthesis period, the overlap ratio is sequentially changed. Then, the ratio of the image of the image sensor 20 is sequentially increased. The overlap ratio may be changed continuously and gradually. Thereby, the image of the image recording unit 31 is smoothly switched to the image of the image sensor 20.
- the synthesis period may be started shortly before completion of the extender insertion within a range in which discomfort does not matter in the overlapped image.
- the ratio of the image of the imaging element 20 is small, so that it is considered that there is no uncomfortable feeling even if the image before the extender import is completed is mixed.
- the control unit 40
- a video switching instruction is sent to the signal processing circuit 30.
- Such a configuration is also included in the present invention.
- the signal processing circuit 30 synthesizes the video from the image sensor and the image from the image recording unit, and outputs the synthesized video.
- the advantages of this embodiment are as follows.
- the imaging apparatus may be panned and tilted, and the subject may be moving. Also, the subject may have changed significantly.
- continuity of video can be ensured. May not be.
- both images (the image of the image recording unit 31 and the image of the image sensor 20) are combined and output. As a result, the video is switched smoothly, and the sense of discomfort given to the user can be reduced. In this regard, the processing of the present embodiment is effective.
- the present invention has an effect that a user watching the monitor does not feel uncomfortable even when the magnification conversion lens is inserted or removed, and has a magnification on the optical axis of the variable magnification lens. It is useful as an imaging device that can remove the conversion lens.
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Abstract
Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/578,820 US7847837B2 (en) | 2004-01-19 | 2005-01-17 | Imagine pickup device and imagine pickup method |
EP05703720A EP1708494A4 (en) | 2004-01-19 | 2005-01-17 | FIGURE APPARATUS AND ILLUSTRATIVE METHOD |
CN2005800013246A CN1898947B (zh) | 2004-01-19 | 2005-01-17 | 图像拾取装置和图像拾取方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-010115 | 2004-01-19 | ||
JP2004010115A JP4529449B2 (ja) | 2004-01-19 | 2004-01-19 | 撮像装置 |
Publications (1)
Publication Number | Publication Date |
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WO2005069604A1 true WO2005069604A1 (ja) | 2005-07-28 |
Family
ID=34792296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/000483 WO2005069604A1 (ja) | 2004-01-19 | 2005-01-17 | 撮像装置および撮像方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7847837B2 (ja) |
EP (1) | EP1708494A4 (ja) |
JP (1) | JP4529449B2 (ja) |
CN (1) | CN1898947B (ja) |
WO (1) | WO2005069604A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5352150B2 (ja) * | 2008-08-01 | 2013-11-27 | パナソニック株式会社 | 撮像装置 |
CN101964871B (zh) * | 2009-07-21 | 2013-08-28 | 鸿富锦精密工业(深圳)有限公司 | 防抖装置以及手机 |
CN102636861A (zh) * | 2011-02-15 | 2012-08-15 | 鸿富锦精密工业(深圳)有限公司 | 变焦镜头及其应用的电子设备 |
US8593564B2 (en) | 2011-09-22 | 2013-11-26 | Apple Inc. | Digital camera including refocusable imaging mode adaptor |
US20130076966A1 (en) * | 2011-09-22 | 2013-03-28 | John Norvold Border | Digital imaging system with refocusable imaging mode |
JP2014137535A (ja) * | 2013-01-18 | 2014-07-28 | Olympus Imaging Corp | 撮像装置 |
CN104580877B (zh) | 2013-10-29 | 2018-03-06 | 华为技术有限公司 | 图像获取的装置及方法 |
JP2017526507A (ja) | 2014-08-31 | 2017-09-14 | ベレシュトカ,ジョン | 目を解析するためのシステム及び方法 |
JP6567850B2 (ja) * | 2015-03-20 | 2019-08-28 | 富士通株式会社 | 撮影装置 |
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JPH0323034B2 (ja) * | 1984-08-09 | 1991-03-28 | Sharp Kk | |
JP2001186401A (ja) * | 1999-12-24 | 2001-07-06 | Minolta Co Ltd | デジタルカメラ |
JP2002077717A (ja) * | 2000-08-29 | 2002-03-15 | Hitachi Kokusai Electric Inc | テレビジョンカメラ装置 |
Family Cites Families (7)
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JP2788063B2 (ja) | 1989-06-21 | 1998-08-20 | 住友大阪セメント株式会社 | 自硬性セラミック材料を含有する消去性鋳型中子およびその製造方法 |
JPH0686131A (ja) * | 1992-09-01 | 1994-03-25 | Hitachi Ltd | ビデオカメラ装置 |
US6559888B1 (en) * | 1998-03-31 | 2003-05-06 | Amir Doron | Digital camera and method of smoothing optical and digital zoom effects |
JP2000278580A (ja) * | 1999-03-23 | 2000-10-06 | Canon Inc | カメラ制御システム、撮像装置 |
JP2001051183A (ja) * | 1999-08-16 | 2001-02-23 | Fuji Photo Optical Co Ltd | レンズ装置 |
JP2001100085A (ja) | 1999-09-29 | 2001-04-13 | Fuji Photo Optical Co Ltd | レンズ装置 |
JP3950685B2 (ja) * | 2000-12-28 | 2007-08-01 | キヤノン株式会社 | ズームレンズおよび撮影システム |
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2004
- 2004-01-19 JP JP2004010115A patent/JP4529449B2/ja not_active Expired - Fee Related
-
2005
- 2005-01-17 WO PCT/JP2005/000483 patent/WO2005069604A1/ja not_active Application Discontinuation
- 2005-01-17 EP EP05703720A patent/EP1708494A4/en not_active Withdrawn
- 2005-01-17 US US10/578,820 patent/US7847837B2/en not_active Expired - Fee Related
- 2005-01-17 CN CN2005800013246A patent/CN1898947B/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0323034B2 (ja) * | 1984-08-09 | 1991-03-28 | Sharp Kk | |
JP2001186401A (ja) * | 1999-12-24 | 2001-07-06 | Minolta Co Ltd | デジタルカメラ |
JP2002077717A (ja) * | 2000-08-29 | 2002-03-15 | Hitachi Kokusai Electric Inc | テレビジョンカメラ装置 |
Non-Patent Citations (1)
Title |
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Also Published As
Publication number | Publication date |
---|---|
JP2005202263A (ja) | 2005-07-28 |
EP1708494A4 (en) | 2009-08-12 |
CN1898947A (zh) | 2007-01-17 |
CN1898947B (zh) | 2011-03-16 |
US20070085915A1 (en) | 2007-04-19 |
US7847837B2 (en) | 2010-12-07 |
EP1708494A1 (en) | 2006-10-04 |
JP4529449B2 (ja) | 2010-08-25 |
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