JP2003207813A - Image pickup device - Google Patents

Image pickup device

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Publication number
JP2003207813A
JP2003207813A JP2002007190A JP2002007190A JP2003207813A JP 2003207813 A JP2003207813 A JP 2003207813A JP 2002007190 A JP2002007190 A JP 2002007190A JP 2002007190 A JP2002007190 A JP 2002007190A JP 2003207813 A JP2003207813 A JP 2003207813A
Authority
JP
Japan
Prior art keywords
component
image
optical axis
axis changing
subject
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2002007190A
Other languages
Japanese (ja)
Other versions
JP3929778B2 (en
Inventor
Akira Suzuki
明 鈴木
Original Assignee
Ricoh Co Ltd
株式会社リコー
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd, 株式会社リコー filed Critical Ricoh Co Ltd
Priority to JP2002007190A priority Critical patent/JP3929778B2/en
Publication of JP2003207813A publication Critical patent/JP2003207813A/en
Application granted granted Critical
Publication of JP3929778B2 publication Critical patent/JP3929778B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

<P>PROBLEM TO BE SOLVED: To provide an image pickup device for appropriately correcting the rotation component and the translation component of an image blurring caused by camera shake, etc. <P>SOLUTION: The image pickup device 1 is provided with a 1st optical axis changing part 2 and a 2nd optical axis changing part 3 for correcting the rotation component and translation component of the image blurring caused by the vibration of the image pickup device 1 or the movement of a subject, etc., in the case of making light from a subject to be photographed incident on an image pickup element through a photographic optical system 6 and then picking up the object image. Thus, the rotation component and translation component of the image blurring caused by the camera shake and the movement of the subject can be corrected, and then, the image quality is improved. <P>COPYRIGHT: (C)2003,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention
【0001】[0001]
【発明の属する技術分野】本発明は、撮像装置に関し、
詳細には、手ぶれ等で生じる像ぶれの回転成分と並進成
分を適切に補正する撮像装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image pickup device,
More specifically, the present invention relates to an image pickup apparatus that appropriately corrects a rotational component and a translational component of image blur caused by camera shake or the like.
【0002】[0002]
【従来の技術】従来、銀塩カメラやCCD等の固体撮像
素子を用いたビデオカメラやデジタルスチルカメラ等の
撮像装置で、手持ち撮影時の手の振動による画像性能の
劣化や、動画撮影時の画像の変位による見苦しさが指摘
されそれを防ぐ方法として、手ぶれ補正技術が種々提案
されている。
2. Description of the Related Art Conventionally, in an image pickup device such as a video camera or a digital still camera using a solid-state image pickup device such as a silver salt camera or CCD, deterioration of image performance due to vibration of a hand during handheld shooting, As a method for preventing the unsightlyness caused by displacement of an image and preventing it, various image stabilization techniques have been proposed.
【0003】この手ぶれ補正技術の一般的に公知な技術
の第一の方式としては、ジャイロスコープ等を用いて光
学装置自体の振動による回転成分を検出し、この回転成
分を相殺するように光学像の位置を変位させて防振する
方法がある。
As a first method of the generally known technique of this camera shake correction technique, a rotational component due to vibration of the optical device itself is detected by using a gyroscope or the like, and an optical image is set so as to cancel this rotational component. There is a method of displacing the position of to prevent vibration.
【0004】第二の方式としては、テレビジョンカメラ
の技術として、撮像素子で被写体像を撮像して、撮像素
子から得られた被写体信号より画角内の被写体像の動き
を検出し、この動き信号を相殺するように、光学像の位
置を変位させたり、被写体がテレビジョン等の画面内で
一定の位置にくるように表示領域を切り出して表示する
方法がある(特開平7−177419号公報等参照)。
As a second method, as a technique of a television camera, a subject image is picked up by an image pickup device, the movement of the subject image within the angle of view is detected from the subject signal obtained from the image pickup device, and this movement is detected. There is a method of displacing the position of the optical image so as to cancel the signal, or cutting and displaying the display area so that the subject is located at a fixed position on the screen of a television or the like (Japanese Patent Laid-Open No. 7-177419). Etc.).
【0005】また、上記第一及び第二の方式を組み合わ
せた方式として、特開平2−75284号公報記載の
「撮像装置」、特開平4−163534号公報記載の
「カメラのブレ防止装置」、特開平4−163535号
公報記載の「カメラのブレ防止装置」、特開平4−21
5623号公報記載の「カメラのぶれ防止装置」、特開
平5−14801号公報記載の「手振れ防止装置」等が
あり、例えば、特開平5−14801号公報記載の「手
振れ防止装置」は、機械式補正手段と電気式補正手段を
備えており、これらの機械式補正手段と電気式補正手段
を使用して回転ぶれを補正している。
Further, as a method combining the above-mentioned first and second methods, "image pickup apparatus" described in JP-A-2-75284, "camera shake prevention apparatus" described in JP-A-4-163534, "Camera shake prevention device" described in JP-A-4-163535, JP-A-4-21
There is a "camera shake prevention device" described in Japanese Patent No. 5623, a "camera shake prevention device" described in JP-A-5-14801, and the like. For example, the "camera shake prevention device" described in JP-A-5-14801 is a machine A mechanical correction means and an electric correction means are provided, and the rotational shake is corrected by using the mechanical correction means and the electric correction means.
【0006】これらの方式は、いずれの方式も撮像装置
の振動による回転ぶれを補正するものである。
In any of these methods, the rotational shake due to the vibration of the image pickup apparatus is corrected.
【0007】ところが、撮像装置の振動によるぶれは、
回転によるぶれだけでなく、並進によるぶれも存在す
る。
However, the shake caused by the vibration of the image pickup device is
In addition to rotation blurring, translational blurring also exists.
【0008】そして、従来、撮像装置の振動による並進
ぶれを検出するものとして、特開平7−225405号
公報記載の「像ぶれ補正カメラ」、特開平9−0805
23号公報記載の「像ブレ補正カメラ」、特開平9−2
18435号公報記載の「像ブレ補正カメラ」及び特開
平9−284637号公報記載の「手ぶれ補正方式およ
びそれを用いたビデオカメラ」等がある。
[0008] Conventionally, as a means for detecting translational blurring caused by vibration of an image pickup apparatus, "Image blurring correction camera" described in JP-A-7-225405 and JP-A-9-0805.
No. 23, "Image blur correction camera", JP-A-9-2
There is an "image blur correction camera" described in Japanese Patent No. 18435 and a "camera shake correction method and a video camera using the same" described in Japanese Patent Laid-Open No. 9-284637.
【0009】これらの従来技術は、いずれも撮像装置の
回転ぶれ量及び並進ぶれ量を検出し、並進ぶれについて
は、検出された並進ぶれ量と撮影被写体の距離から並進
ぶれ量に対応するぶれ角度を算出し、上記回転ぶれ量と
ともに、回転補正手段を用いて、手ぶれ補正している
が、いずれも具体的な並進補正手段を備えていない。
In all of these prior arts, the rotational blurring amount and the translational blurring amount of the image pickup device are detected, and regarding the translational blurring, the blurring angle corresponding to the translational blurring amount is detected from the detected translational blurring amount and the distance of the photographic subject. Is calculated, and the camera shake correction is performed using the rotation correction means together with the rotation shake amount, but neither of them has a specific translation correction means.
【0010】[0010]
【発明が解決しようとする課題】しかしながら、上記従
来の撮像装置のぶれ補正技術は、いずれも、回転ぶれ補
正、かそれに準じた形での防振方法が使用されている
が、撮像装置の振動は、回転成分のみでなく、並進成分
も存在する。
However, in each of the above-described conventional image stabilization techniques for the image pickup apparatus, the rotational image stabilization method or the image stabilization method based on it is used. Has not only a rotational component but also a translational component.
【0011】この撮像装置の振動の並進成分は、並進量
をB、撮影光学系の焦点距離をf、撮影光学系の主点か
ら被写体までの距離をLとすると、並進による像移動量
dは、次式で示される。
Assuming that the translational component of the vibration of the image pickup apparatus is B, the focal length of the photographic optical system is f, and the distance from the principal point of the photographic optical system to the object is L, the image movement amount d due to translation is , Is shown by the following equation.
【0012】d=(B×f)/L すなわち、並進量Bによる像移動量dは、被写体距離L
により変化する。
D = (B × f) / L That is, the image movement amount d by the translation amount B is the object distance L
It changes with.
【0013】そこで、上述した従来技術にあっては、被
写体距離Lを限定することで像移動量dを限定し、並進
による像移動を相殺するように回転補正手段により補正
を行っている。
Therefore, in the above-mentioned conventional technique, the amount of image movement d is limited by limiting the object distance L, and the rotation correction means performs correction so as to cancel the image movement due to translation.
【0014】しかしながら、撮影画角内には一つの被写
体距離の被写体のみではなく他の被写体距離の被写体も
混在して存在する場合がある。
However, there may be a case where not only the subject having one subject distance but also the subjects having other subject distances are mixedly present within the photographing field angle.
【0015】このような場合には、限定された被写体距
離の被写体については並進ぶれが補正されるが、他の被
写体については、並進ぶれ補正の影響で像ぶれが発生
し、画質が悪化するという問題があった。
In such a case, translation blurring is corrected for a subject having a limited subject distance, but for other subjects, image blurring occurs due to the effect of translational blurring correction, and the image quality deteriorates. There was a problem.
【0016】そこで、請求項1記載の発明は、撮影対象
の被写体からの光を撮影光学系を通して撮像手段に入射
して、被写体の画像を撮像するに際して、撮像装置の振
動または被写体の移動等に伴う画像の像ぶれの回転成分
と並進成分を補正する第一光軸変更手段と第二光軸変更
手段を設けることにより、手ぶれや被写体の移動等で発
生する画像の像ぶれの回転成分と並進成分を補正し、画
質を向上させることのできる撮像装置を提供することを
目的としている。
Therefore, in the invention described in claim 1, when the light from the subject to be photographed is incident on the image pickup means through the photographing optical system and an image of the subject is picked up, vibration of the image pickup device or movement of the subject is caused. By providing the first optical axis changing means and the second optical axis changing means for correcting the rotational component and the translational component of the accompanying image blur of the image, the rotational component and the translation of the image blur of the image caused by camera shake or movement of the subject are provided. It is an object of the present invention to provide an imaging device capable of correcting components and improving image quality.
【0017】請求項2記載の発明は、画像の像ぶれの並
進成分を第一光軸変更手段と第二光軸変更手段で補正
し、像ぶれの回転成分を回転成分補正手段で補正するこ
とにより、像ぶれの並進成分を適切に補正するととも
に、回転成分を従来技術を利用して補正し、安価に画質
を向上させることのできる撮像装置を提供することを目
的としている。
According to a second aspect of the invention, the translational component of the image blur of the image is corrected by the first optical axis changing means and the second optical axis changing means, and the rotational component of the image blur is corrected by the rotational component correcting means. Accordingly, it is an object of the present invention to provide an image pickup apparatus capable of appropriately correcting a translational component of an image blur and correcting a rotational component using a conventional technique, and improving image quality at low cost.
【0018】請求項3記載の発明は、撮像装置の振動ま
たは被写体の移動等に伴う画像の像ぶれの回転成分と並
進成分を検出手段で検出し、被写体との距離である被写
体距離を測距手段で測定し、検出手段の検出する回転成
分と並進成分及び測距手段の測定する被写体距離に基づ
いて並進補正量と回転補正量を補正量算出手段で算出し
て、当該補正量算出手段の算出した並進補正量と回転補
正量に基づいて第一光軸変更手段と第二光軸変更手段ま
たは回転成分補正手段で回転成分と並進成分を補正する
ことにより、少ない補正量で手ぶれや被写体の移動等で
発生する画像の像ぶれの回転成分と並進成分をより適切
に補正し、安価に画質をより一層向上させることのでき
る撮像装置を提供することを目的としている。
According to a third aspect of the present invention, the detecting means detects the rotational component and translational component of the image blur of the image due to the vibration of the image pickup device or the movement of the subject, and the object distance which is the distance to the object is measured. The correction amount calculation means calculates a translation correction amount and a rotation correction amount based on the rotation component and the translation component detected by the detection device and the subject distance measured by the distance measurement device. By correcting the rotational component and the translational component by the first optical axis changing means and the second optical axis changing means or the rotational component correcting means based on the calculated translational correction amount and rotational correction amount, the camera shake and the subject of the subject can be corrected with a small correction amount. An object of the present invention is to provide an imaging device capable of more appropriately correcting the rotational component and translational component of image blur of an image generated by movement or the like, and further improving the image quality at low cost.
【0019】請求項4記載の発明は、撮像装置の振動ま
たは被写体の移動等に伴う当該撮像装置と当該被写体と
の相対変位に基づいて回転成分と並進成分を相対変位検
出手段で検出し、当該相対変位検出手段の検出した回転
成分と並進成分に基づいて第一光軸変更手段と第二光軸
変更手段または回転成分補正手段で回転成分と並進成分
を補正することにより、少ない補正量で手ぶれや被写体
の移動等で発生する画像の像ぶれの回転成分と並進成分
をより適切に補正し、安価により一層画質を向上させる
ことのできる撮像装置を提供することを目的としてい
る。
According to a fourth aspect of the present invention, the relative displacement detecting means detects the rotational component and the translational component based on the relative displacement between the image pickup device and the subject due to the vibration of the image pickup device or the movement of the subject. By correcting the rotational component and the translational component by the first optical axis changing unit and the second optical axis changing unit or the rotational component correcting unit based on the rotational component and the translational component detected by the relative displacement detecting unit, the camera shake is reduced with a small correction amount. An object of the present invention is to provide an image pickup apparatus capable of more appropriately correcting the rotational component and translational component of the image blur of an image caused by movement of a subject or the like, and further improving the image quality at low cost.
【0020】請求項5記載の発明は、像変位検出手段
で、被写体の画像の像変位を検出して回転成分と並進成
分を算出し、当該像変位検出手段の算出した回転成分と
並進成分に基づいて第一光軸変更手段と第二光軸変更手
段または回転成分補正手段で回転成分と並進成分を補正
することにより、手ぶれや被写体の移動等で発生する画
像の像ぶれの回転成分と並進成分をより適切にかつ安価
に補正し、安価により一層画質を向上させることのでき
る撮像装置を提供することを目的としている。
According to a fifth aspect of the present invention, the image displacement detecting means detects the image displacement of the image of the object to calculate the rotation component and the translation component, and the rotation component and the translation component are calculated by the image displacement detecting means. By correcting the rotation component and the translation component by the first optical axis changing unit and the second optical axis changing unit or the rotation component correcting unit based on the above, the rotation component and the translation of the image blur of the image caused by camera shake or movement of the subject are translated. An object of the present invention is to provide an image pickup apparatus capable of more appropriately and inexpensively correcting components and further improving image quality at a low cost.
【0021】請求項6記載の発明は、第一光軸変更手段
及び第二光軸変更手段を、反射板を有し、当該反射板を
回転させて被写体からの光の光軸を変更させて回転成分
と並進成分または並進成分を補正するものとすることに
より、手ぶれや被写体の移動等で発生する画像の像ぶれ
の回転成分と並進成分をより一層安価に補正し、より一
層安価に画質を向上させることのできる撮像装置を提供
することを目的としている。
According to a sixth aspect of the present invention, the first optical axis changing means and the second optical axis changing means have a reflecting plate, and the reflecting plate is rotated to change the optical axis of the light from the subject. By correcting the rotational and translational components or the translational component, the rotational and translational components of the image blur of the image caused by camera shake, movement of the subject, etc. can be corrected at a lower cost, and the image quality can be reduced at a lower cost. An object is to provide an imaging device that can be improved.
【0022】請求項7記載の発明は、第一光軸変更手段
及び第二光軸変更手段を、可変頂角プリズムを有し、当
該可変頂角プリズムの頂角を変化させて、または、当該
可変頂角プリズムへの入射光と出射光の屈折率を変化さ
せて被写体からの光の光軸を変更させて回転成分と並進
成分または並進成分を補正するものとすることにより、
手ぶれや被写体の移動等で発生する画像の像ぶれの回転
成分と並進成分をより一層高精度に補正し、画質をより
一層向上させることのできる撮像装置を提供することを
目的としている。
According to a seventh aspect of the invention, the first optical axis changing means and the second optical axis changing means have a variable vertical angle prism, and the vertical angle of the variable vertical angle prism is changed, or By changing the optical axes of the light from the subject by changing the refractive index of the incident light and the outgoing light to the variable apex prism, by correcting the rotation component and the translation component or the translation component,
An object of the present invention is to provide an image pickup apparatus capable of further accurately correcting the rotational component and translational component of an image blur of an image caused by camera shake, movement of a subject, and the like, and further improving the image quality.
【0023】請求項8記載の発明は、第一光軸変更手段
及び第二光軸変更手段を、反射板と可変頂角プリズムを
備え、当該反射板を回転させるとともに、当該可変頂角
プリズムの頂角を変化させて、または、当該可変頂角プ
リズムへの入射光と出射光の屈折率を変化させて回転成
分と並進成分または並進成分を補正するものとすること
により、手ぶれや被写体の移動等で発生する画像の像ぶ
れの回転成分と並進成分を安価にかつより一層高精度に
補正し、安価に画質をより一層向上させることのできる
撮像装置を提供することを目的としている。
According to an eighth aspect of the present invention, the first optical axis changing means and the second optical axis changing means are provided with a reflecting plate and a variable vertical angle prism, and the reflecting plate is rotated, and at the same time, the variable vertical angle prism By changing the apex angle or by changing the refractive index of the incident light and the outgoing light to the variable apex angle prism to correct the rotation component and the translation component or the translation component, camera shake or movement of the subject It is an object of the present invention to provide an image pickup apparatus capable of correcting the rotational component and translational component of the image blur of an image generated in such a case at low cost and with higher accuracy, and further improving the image quality at low cost.
【0024】請求項9記載の発明は、第一光軸変更手段
を、反射板または可変頂角プリズムを備え、当該反射板
を回転させ、または、当該可変頂角プリズムの頂角を変
化させ、あるいは、当該可変頂角プリズムへの入射光と
出射光の屈折率を変化させて並進成分を補正するものと
し、第二光軸変更手段を、撮像手段を変位させて回転成
分を補正するものとすることにより、手ぶれや被写体の
移動等で発生する画像の像ぶれの回転成分と並進成分を
安価にかつより一層高精度に補正し、安価に画質をより
一層向上させることのできる撮像装置を提供することを
目的としている。
According to a ninth aspect of the present invention, the first optical axis changing means is provided with a reflecting plate or a variable apex angle prism, the reflecting plate is rotated, or the apex angle of the variable apex angle prism is changed. Alternatively, the translational component is corrected by changing the refractive index of the incident light and the output light to the variable apex angle prism, and the second optical axis changing means is used to correct the rotational component by displacing the image pickup means. By doing so, it is possible to inexpensively and more accurately correct the rotational component and translational component of the image blur of an image caused by camera shake, movement of the subject, etc., and to provide an imaging device that can further improve the image quality at low cost. The purpose is to do.
【0025】請求項10記載の発明は、第一光軸変更手
段を、反射板または可変頂角プリズムを備え、当該反射
板を回転させ、または、当該可変頂角プリズムの頂角を
変化させ、あるいは、当該可変頂角プリズムへの入射光
と出射光の屈折率を変化させて並進成分を補正するもの
とし、第二光軸変更手段を、撮影光学系の全体または一
部を変位させて回転成分を補正するものとすることによ
り、手ぶれや被写体の移動等で発生する画像の像ぶれの
回転成分と並進成分を安価にかつより一層高精度に補正
し、安価に画質をより一層向上させることのできる撮像
装置を提供することを目的としている。
According to a tenth aspect of the present invention, the first optical axis changing means is provided with a reflecting plate or a variable apex angle prism, the reflecting plate is rotated, or the apex angle of the variable apex angle prism is changed, Alternatively, the translational component is corrected by changing the refractive indices of the incident light and the outgoing light to the variable apex angle prism, and the second optical axis changing means is rotated by displacing the whole or a part of the photographing optical system. By correcting the components, the rotational and translational components of the image blur of the image caused by camera shake, movement of the subject, etc. can be inexpensively and highly accurately corrected to further improve the image quality at low cost. It is an object of the present invention to provide an imaging device capable of performing the above.
【0026】請求項11記載の発明は、第一光軸変更手
段を、反射板または可変頂角プリズムを備え、当該反射
板を回転させ、または、当該可変頂角プリズムの頂角を
変化させ、あるいは、当該可変頂角プリズムへの入射光
と出射光の屈折率を変化させて並進成分を補正するもの
とし、第二光軸変更手段を、撮像手段からの撮像画像情
報の一部を切り出して回転成分を補正するものとするこ
とにより、手ぶれや被写体の移動等で発生する画像の像
ぶれの回転成分と並進成分をより一層安価にかつより一
層高精度に補正し、より一層安価に画質をより一層向上
させることのできる撮像装置を提供することを目的とし
ている。
According to the eleventh aspect of the present invention, the first optical axis changing means is provided with a reflecting plate or a variable apex angle prism, the reflecting plate is rotated, or the apex angle of the variable apex angle prism is changed. Alternatively, it is assumed that the translational components are corrected by changing the refractive indices of the incident light and the outgoing light to the variable apex angle prism, and the second optical axis changing means cuts out a part of the imaged image information from the image pickup means. By correcting the rotational component, the rotational and translational components of the image blur of the image caused by camera shake, movement of the subject, etc. can be corrected more inexpensively and with higher accuracy, and the image quality can be reduced at a lower cost. It is an object of the present invention to provide an imaging device that can be further improved.
【0027】[0027]
【課題を解決するための手段】請求項1記載の発明の撮
像装置は、撮影対象の被写体からの光を撮影光学系を通
して撮像手段に入射して、前記被写体の画像を撮像する
撮像装置において、前記撮像装置の振動または前記被写
体の移動等に伴う前記画像の像ぶれの回転成分と並進成
分を補正する第一光軸変更手段と第二光軸変更手段を備
えていることにより、上記目的を達成している。
According to a first aspect of the present invention, there is provided an image pickup device for picking up an image of the subject by allowing light from a subject to be photographed to enter the image pickup means through a photographing optical system. By providing the first optical axis changing means and the second optical axis changing means for correcting the rotational component and translational component of the image blur of the image due to the vibration of the image pickup device or the movement of the subject, the above object is achieved. Has achieved.
【0028】上記構成によれば、撮影対象の被写体から
の光を撮影光学系を通して撮像手段に入射して、被写体
の画像を撮像するに際して、撮像装置の振動または被写
体の移動等に伴う画像の像ぶれの回転成分と並進成分を
補正する第一光軸変更手段と第二光軸変更手段を設けて
いるので、手ぶれや被写体の移動等で発生する画像の像
ぶれの回転成分と並進成分を補正することができ、画質
を向上させることができる。
According to the above arrangement, when the light from the subject to be photographed is incident on the image pickup means through the photographing optical system and the image of the subject is picked up, the image of the image accompanied by the vibration of the image pickup apparatus or the movement of the subject is taken. Since the first optical axis changing means and the second optical axis changing means for correcting the rotational component and the translational component of the blur are provided, the rotational component and the translational component of the image blur of the image caused by camera shake or movement of the subject are corrected. Therefore, the image quality can be improved.
【0029】この場合、例えば、請求項2に記載するよ
うに、前記撮像装置は、前記画像の像ぶれの並進成分を
前記第一光軸変更手段と第二光軸変更手段で補正し、前
記像ぶれの回転成分を回転成分補正手段で補正するもの
であってもよい。
In this case, for example, as described in claim 2, the image pickup apparatus corrects the translational component of the image blur of the image by the first optical axis changing means and the second optical axis changing means, The rotation component of the image blur may be corrected by the rotation component correction means.
【0030】上記構成によれば、画像の像ぶれの並進成
分を第一光軸変更手段と第二光軸変更手段で補正し、像
ぶれの回転成分を回転成分補正手段で補正するので、像
ぶれの並進成分を適切に補正するとともに、回転成分を
従来技術を利用して補正することができ、安価に画質を
向上させることができる。
According to the above construction, the translational component of the image blur of the image is corrected by the first optical axis changing means and the second optical axis changing means, and the rotational component of the image blur is corrected by the rotational component correcting means. The translational component of the blur can be appropriately corrected, and the rotational component can be corrected by utilizing the conventional technique, so that the image quality can be improved at low cost.
【0031】また、例えば、請求項3に記載するよう
に、前記撮像装置は、前記撮像装置の振動または前記被
写体の移動等に伴う前記画像の像ぶれの回転成分と並進
成分を検出する検出手段と、前記被写体との距離である
被写体距離を測定する測距手段と、前記検出手段の検出
する回転成分と並進成分及び前記測距手段の測定する被
写体距離に基づいて並進補正量と回転補正量を算出する
補正量算出手段と、を備え、当該補正量算出手段の算出
した並進補正量と回転補正量に基づいて前記第一光軸変
更手段と前記第二光軸変更手段または前記回転成分補正
手段で前記回転成分と前記並進成分を補正するものであ
ってもよい。
Further, for example, as described in claim 3, the image pickup device detects a rotation component and a translation component of the image blur of the image due to the vibration of the image pickup device or the movement of the subject. And a distance measuring unit that measures a subject distance that is a distance to the subject, and a translation correction amount and a rotation correction amount based on the rotation component and translation component detected by the detection unit and the subject distance measured by the distance measuring unit. Correction amount calculation means for calculating, and the first optical axis changing means and the second optical axis changing means or the rotation component correction based on the translation correction amount and the rotation correction amount calculated by the correction amount calculating means. The means may correct the rotational component and the translational component.
【0032】上記構成によれば、撮像装置の振動または
被写体の移動等に伴う画像の像ぶれの回転成分と並進成
分を検出手段で検出し、被写体との距離である被写体距
離を測距手段で測定し、検出手段の検出する回転成分と
並進成分及び測距手段の測定する被写体距離に基づいて
並進補正量と回転補正量を補正量算出手段で算出して、
当該補正量算出手段の算出した並進補正量と回転補正量
に基づいて第一光軸変更手段と第二光軸変更手段または
回転成分補正手段で回転成分と並進成分を補正するの
で、少ない補正量で手ぶれや被写体の移動等で発生する
画像の像ぶれの回転成分と並進成分をより適切に補正す
ることができ、安価に画質をより一層向上させることが
できる。
According to the above arrangement, the detecting means detects the rotational component and the translational component of the image blur of the image caused by the vibration of the image pickup device or the movement of the subject, and the distance measuring means measures the subject distance which is the distance from the subject. The correction amount calculation means calculates a translation correction amount and a rotation correction amount based on the rotation component and the translation component detected by the detection means and the subject distance measured by the distance measurement means.
Since the rotation component and the translation component are corrected by the first optical axis changing unit and the second optical axis changing unit or the rotation component correcting unit based on the translation correction amount and the rotation correction amount calculated by the correction amount calculating unit, the correction amount is small. Thus, it is possible to more appropriately correct the rotational component and translational component of the image blur of the image, which occur due to camera shake, movement of the subject, etc., and it is possible to further improve the image quality at low cost.
【0033】さらに、例えば、請求項4に記載するよう
に、前記撮像装置は、前記撮像装置の振動または前記被
写体の移動等に伴う当該撮像装置と当該被写体との相対
変位に基づいて前記回転成分と前記並進成分を検出する
相対変位検出手段を備え、当該相対変位検出手段の検出
した前記回転成分と前記並進成分に基づいて前記第一光
軸変更手段と前記第二光軸変更手段または前記回転成分
補正手段で前記回転成分と前記並進成分を補正するもの
であってもよい。
Further, for example, as described in claim 4, the image pickup device is configured so that the rotation component is based on a relative displacement between the image pickup device and the subject due to vibration of the image pickup device or movement of the subject. And a relative displacement detecting means for detecting the translational component, and the first optical axis changing means and the second optical axis changing means or the rotation based on the rotation component and the translational component detected by the relative displacement detecting means. The component correcting means may correct the rotational component and the translational component.
【0034】上記構成によれば、撮像装置の振動または
被写体の移動等に伴う当該撮像装置と当該被写体との相
対変位に基づいて回転成分と並進成分を相対変位検出手
段で検出し、当該相対変位検出手段の検出した回転成分
と並進成分に基づいて第一光軸変更手段と第二光軸変更
手段または回転成分補正手段で回転成分と並進成分を補
正するので、少ない補正量で手ぶれや被写体の移動等で
発生する画像の像ぶれの回転成分と並進成分をより適切
に補正することができ、安価により一層画質を向上させ
ることができる。
According to the above arrangement, the relative displacement detecting means detects the rotational component and the translational component based on the relative displacement between the image pickup device and the subject due to the vibration of the image pickup device or the movement of the subject. Since the rotation component and the translation component are corrected by the first optical axis changing unit and the second optical axis changing unit or the rotation component correcting unit based on the rotation component and the translation component detected by the detecting unit, the amount of camera shake and the subject can be reduced with a small correction amount. It is possible to more appropriately correct the rotational component and translational component of the image blur of the image generated by movement or the like, and it is possible to further improve the image quality at low cost.
【0035】また、例えば、請求項5に記載するよう
に、前記撮像装置は、前記被写体の画像の像変位を検出
して前記回転成分と前記並進成分を算出する像変位検出
手段を備え、当該像変位検出手段の算出した前記回転成
分と前記並進成分に基づいて前記第一光軸変更手段と前
記第二光軸変更手段または前記回転成分補正手段で前記
回転成分と前記並進成分を補正するものであってもよ
い。
Further, for example, as described in claim 5, the image pickup device comprises image displacement detection means for detecting the image displacement of the image of the subject to calculate the rotational component and the translational component. Correcting the rotational component and the translational component by the first optical axis changing unit and the second optical axis changing unit or the rotational component correcting unit based on the rotational component and the translational component calculated by the image displacement detecting unit. May be
【0036】上記構成によれば、像変位検出手段で、被
写体の画像の像変位を検出して回転成分と並進成分を算
出し、当該像変位検出手段の算出した回転成分と並進成
分に基づいて第一光軸変更手段と第二光軸変更手段また
は回転成分補正手段で回転成分と並進成分を補正するの
で、手ぶれや被写体の移動等で発生する画像の像ぶれの
回転成分と並進成分をより適切にかつ安価に補正するこ
とができ、安価により一層画質を向上させることができ
る。
According to the above construction, the image displacement detecting means detects the image displacement of the image of the object to calculate the rotation component and the translational component, and based on the rotation component and the translational component calculated by the image displacement detecting means. Since the rotation component and the translational component are corrected by the first optical axis changing unit and the second optical axis changing unit or the rotation component correcting unit, the rotation component and the translational component of the image blur of the image caused by camera shake, movement of the subject, etc. The correction can be appropriately performed at low cost, and the image quality can be further improved at low cost.
【0037】さらに、例えば、請求項6に記載するよう
に、前記第一光軸変更手段及び前記第二光軸変更手段
は、反射板を有し、当該反射板を回転させて前記被写体
からの光の光軸を変更させて前記回転成分と並進成分ま
たは前記並進成分を補正するものであってもよい。
Further, for example, as described in claim 6, each of the first optical axis changing means and the second optical axis changing means has a reflection plate, and the reflection plate is rotated to remove the light from the subject. The optical axis of the light may be changed to correct the rotation component and the translation component or the translation component.
【0038】上記構成によれば、第一光軸変更手段及び
第二光軸変更手段を、反射板を有し、当該反射板を回転
させて被写体からの光の光軸を変更させて回転成分と並
進成分または並進成分を補正するものとしているので、
手ぶれや被写体の移動等で発生する画像の像ぶれの回転
成分と並進成分をより一層安価に補正することができ、
より一層安価に画質を向上させることができる。
According to the above construction, the first optical axis changing means and the second optical axis changing means have a reflecting plate, and the reflecting plate is rotated to change the optical axis of the light from the subject to generate a rotation component. And the translation component or the translation component is corrected,
The rotational component and translational component of the image blur of the image caused by camera shake or movement of the subject can be corrected at a lower cost,
The image quality can be improved at a lower cost.
【0039】また、例えば、請求項7に記載するよう
に、前記第一光軸変更手段及び前記第二光軸変更手段
は、可変頂角プリズムを有し、当該可変頂角プリズムの
頂角を変化させて、または、当該可変頂角プリズムへの
入射光と出射光の屈折率を変化させて前記被写体からの
光の光軸を変更させて前記回転成分と並進成分または前
記並進成分を補正するものであってもよい。
Further, for example, as described in claim 7, each of the first optical axis changing means and the second optical axis changing means has a variable vertical angle prism, and the vertical angle of the variable vertical angle prism is changed. The rotational component and the translational component or the translational component are corrected by changing or changing the optical axes of the light from the subject by changing the refractive indices of the incident light and the outgoing light to the variable apex angle prism. It may be one.
【0040】上記構成によれば、第一光軸変更手段及び
第二光軸変更手段を、可変頂角プリズムを有し、当該可
変頂角プリズムの頂角を変化させて、または、当該可変
頂角プリズムへの入射光と出射光の屈折率を変化させて
被写体からの光の光軸を変更させて回転成分と並進成分
または並進成分を補正するものとしているので、手ぶれ
や被写体の移動等で発生する画像の像ぶれの回転成分と
並進成分をより一層高精度に補正することができ、画質
をより一層向上させることができる。
According to the above arrangement, the first optical axis changing means and the second optical axis changing means each have a variable apex angle prism, and the apex angle of the variable apex angle prism is changed, or the variable apex angle is changed. By changing the optical axis of the light from the subject by changing the refractive index of the incident light and the outgoing light to the prism, the rotation component and the translation component or the translation component are corrected. The rotational component and translational component of the image blur of the generated image can be corrected with higher accuracy, and the image quality can be further improved.
【0041】さらに、例えば、請求項8に記載するよう
に、前記第一光軸変更手段及び前記第二光軸変更手段
は、反射板と可変頂角プリズムを備え、当該反射板を回
転させるとともに、当該可変頂角プリズムの頂角を変化
させて、または、当該可変頂角プリズムへの入射光と出
射光の屈折率を変化させて前記回転成分と並進成分また
は前記並進成分を補正するものであってもよい。
Further, for example, as described in claim 8, the first optical axis changing means and the second optical axis changing means each include a reflecting plate and a variable apex angle prism, and rotate the reflecting plate. , To correct the rotation component and the translation component or the translation component by changing the apex angle of the variable apex prism or by changing the refractive index of incident light and output light to the variable apex prism. It may be.
【0042】上記構成によれば、第一光軸変更手段及び
第二光軸変更手段を、反射板と可変頂角プリズムを備
え、当該反射板を回転させるとともに、当該可変頂角プ
リズムの頂角を変化させて、または、当該可変頂角プリ
ズムへの入射光と出射光の屈折率を変化させて回転成分
と並進成分または並進成分を補正するものとしているの
で、手ぶれや被写体の移動等で発生する画像の像ぶれの
回転成分と並進成分を安価にかつより一層高精度に補正
することができ、安価に画質をより一層向上させること
ができる。
According to the above arrangement, the first optical axis changing means and the second optical axis changing means are provided with the reflecting plate and the variable vertical angle prism, and the reflecting plate is rotated, and the vertical angle of the variable vertical angle prism is changed. Is changed or the refractive index of the incident light and the outgoing light to the variable apex angle prism is changed to correct the rotation component and the translation component or the translation component, so that it occurs due to camera shake or movement of the subject. The rotational component and translational component of the image blur of the image can be corrected at low cost with higher accuracy, and the image quality can be further improved at low cost.
【0043】また、例えば、請求項9に記載するよう
に、前記第一光軸変更手段は、反射板または可変頂角プ
リズムを備え、当該反射板を回転させ、または、当該可
変頂角プリズムの頂角を変化させ、あるいは、当該可変
頂角プリズムへの入射光と出射光の屈折率を変化させて
前記並進成分を補正し、前記第二光軸変更手段は、前記
撮像手段を変位させて前記回転成分を補正するものであ
ってもよい。
Further, for example, as described in claim 9, the first optical axis changing means includes a reflecting plate or a variable apex angle prism, and the reflecting plate is rotated, or the variable apex angle prism is The apex angle is changed, or the refractive index of the incident light and the emitted light to the variable apex angle prism is changed to correct the translational component, and the second optical axis changing means displaces the image pickup means. The rotation component may be corrected.
【0044】上記構成によれば、第一光軸変更手段を、
反射板または可変頂角プリズムを備え、当該反射板を回
転させ、または、当該可変頂角プリズムの頂角を変化さ
せ、あるいは、当該可変頂角プリズムへの入射光と出射
光の屈折率を変化させて並進成分を補正するものとし、
第二光軸変更手段を、撮像手段を変位させて回転成分を
補正するものとしているので、手ぶれや被写体の移動等
で発生する画像の像ぶれの回転成分と並進成分を安価に
かつより一層高精度に補正することができ、安価に画質
をより一層向上させることができる。
According to the above arrangement, the first optical axis changing means is
It is equipped with a reflector or a variable apex prism and rotates the reflector, or changes the apex angle of the variable apex prism, or changes the refractive index of incident light and emitted light to the variable apex prism. To correct the translational component,
Since the second optical axis changing means is configured to correct the rotational component by displacing the image pickup means, the rotational component and translational component of the image blur of the image caused by camera shake, movement of the subject, etc. can be inexpensively and further improved. The image quality can be further improved at low cost because the correction can be performed accurately.
【0045】さらに、例えば、請求項10に記載するよ
うに、前記第一光軸変更手段は、反射板または可変頂角
プリズムを備え、当該反射板を回転させ、または、当該
可変頂角プリズムの頂角を変化させ、あるいは、当該可
変頂角プリズムへの入射光と出射光の屈折率を変化させ
て前記並進成分を補正し、前記第二光軸変更手段は、前
記撮影光学系の全体または一部を変位させて前記回転成
分を補正するものであってもよい。
Further, for example, as described in claim 10, the first optical axis changing means includes a reflecting plate or a variable apex angle prism, and the reflecting plate is rotated, or the variable apex angle prism is The apex angle is changed, or the refractive index of the incident light and the emitted light to the variable apex angle prism is changed to correct the translational component, and the second optical axis changing means is the entire photographing optical system or A part of the rotation component may be displaced to correct the rotation component.
【0046】上記構成によれば、第一光軸変更手段を、
反射板または可変頂角プリズムを備え、当該反射板を回
転させ、または、当該可変頂角プリズムの頂角を変化さ
せ、あるいは、当該可変頂角プリズムへの入射光と出射
光の屈折率を変化させて並進成分を補正するものとし、
第二光軸変更手段を、撮影光学系の全体または一部を変
位させて回転成分を補正するものとしているので、手ぶ
れや被写体の移動等で発生する画像の像ぶれの回転成分
と並進成分を安価にかつより一層高精度に補正すること
ができ、安価に画質をより一層向上させることができ
る。
According to the above arrangement, the first optical axis changing means is
It is equipped with a reflector or a variable apex prism and rotates the reflector, or changes the apex angle of the variable apex prism, or changes the refractive index of incident light and emitted light to the variable apex prism. To correct the translational component,
Since the second optical axis changing means is configured to correct the rotational component by displacing the whole or a part of the photographing optical system, the rotational component and translational component of the image blur of the image caused by camera shake, movement of the subject, etc. The correction can be performed at low cost and with higher accuracy, and the image quality can be further improved at low cost.
【0047】また、例えば、請求項11に記載するよう
に、前記第一光軸変更手段は、反射板または可変頂角プ
リズムを備え、当該反射板を回転させ、または、当該可
変頂角プリズムの頂角を変化させ、あるいは、当該可変
頂角プリズムへの入射光と出射光の屈折率を変化させて
前記並進成分を補正し、前記第二光軸変更手段は、前記
撮像手段からの撮像画像情報の一部を切り出して前記回
転成分を補正するものであってもよい。
Further, for example, as described in claim 11, the first optical axis changing means is provided with a reflecting plate or a variable apex angle prism, and the reflecting plate is rotated, or the variable apex angle prism is The apex angle is changed, or the refractive index of the incident light and the emitted light to the variable apex angle prism is changed to correct the translational component, and the second optical axis changing unit is a captured image from the image capturing unit. A part of the information may be cut out to correct the rotation component.
【0048】上記構成によれば、第一光軸変更手段を、
反射板または可変頂角プリズムを備え、当該反射板を回
転させ、または、当該可変頂角プリズムの頂角を変化さ
せ、あるいは、当該可変頂角プリズムへの入射光と出射
光の屈折率を変化させて並進成分を補正するものとし、
第二光軸変更手段を、撮像手段からの撮像画像情報の一
部を切り出して回転成分を補正するものとしているの
で、手ぶれや被写体の移動等で発生する画像の像ぶれの
回転成分と並進成分をより一層安価にかつより一層高精
度に補正することができ、より一層安価に画質をより一
層向上させることができる。
According to the above construction, the first optical axis changing means is
It is equipped with a reflector or a variable apex prism and rotates the reflector, or changes the apex angle of the variable apex prism, or changes the refractive index of incident light and emitted light to the variable apex prism. To correct the translational component,
Since the second optical axis changing means corrects the rotation component by cutting out a part of the imaged image information from the image pickup means, the rotation component and translational component of the image blur of the image caused by camera shake or movement of the subject. Can be corrected at lower cost and with higher accuracy, and the image quality can be further improved at lower cost.
【0049】[0049]
【発明の実施の形態】以下、本発明の好適な実施の形態
を添付図面に基づいて詳細に説明する。なお、以下に述
べる実施の形態は、本発明の好適な実施の形態であるか
ら、技術的に好ましい種々の限定が付されているが、本
発明の範囲は、以下の説明において特に本発明を限定す
る旨の記載がない限り、これらの態様に限られるもので
はない。
BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below are preferred embodiments of the present invention, and therefore have various technically preferable limitations. However, the scope of the present invention refers to the present invention particularly in the following description. Unless otherwise stated, the present invention is not limited to these embodiments.
【0050】図1〜図31は、本発明の撮像装置の第1
の実施の形態を示す図であり、図1は、本発明の撮像装
置の第1の実施の形態を適用した撮像装置1の要部ブロ
ック構成図である。
1 to 31 show the first embodiment of the image pickup apparatus of the present invention.
FIG. 1 is a diagram showing an embodiment of the present invention, and FIG. 1 is a block diagram of a main part of an image pickup apparatus 1 to which the first embodiment of the image pickup apparatus of the present invention is applied.
【0051】図1において、撮像装置1は、第一光軸変
更部2と第二光軸変更部3等を備えているとともに、図
2に示すぶれ検出・算出部4または図3に示すぶれ検出
・算出部5を備え、さらに、図示しない撮影光学系、撮
像素子、表示部、記録部及び制御部等を備えている。
In FIG. 1, the image pickup apparatus 1 includes a first optical axis changing unit 2 and a second optical axis changing unit 3 and the like, and the blur detecting / calculating unit 4 shown in FIG. 2 or the blur shown in FIG. A detection / calculation unit 5 is provided, and further, an image pickup optical system, an image pickup device, a display unit, a recording unit, a control unit, and the like, which are not shown, are provided.
【0052】第一光軸変更部(第一光軸変更手段)2に
は、被写体a(図4参照)からの入射光(被写体光線)
が入射され、第一光軸変更部2は、例えば、第二光軸変
更部3の中央部を被写体光線が通過するようにその光軸
を曲げて、第二光軸変更部3に第一補正光線として入射
させる。
Incident light (subject ray) from the subject a (see FIG. 4) is input to the first optical axis changing unit (first optical axis changing means) 2.
Is incident on the second optical axis changing unit 3, and the first optical axis changing unit 2 bends the optical axis of the second optical axis changing unit 3 so that the subject light beam passes through the central portion of the second optical axis changing unit 3 to make It is incident as a correction ray.
【0053】第二光軸変更部(第二光軸変更手段)3に
は、第一光軸変更部2で補正された第一補正光線が入射
され、第二光軸変更部3は、第一光軸部2で補正された
第一補正光線を、図示しない撮影光学系の主点上の中
心、例えば、撮像レンズの主点上の中心を通過するよう
に、その光軸を曲げて、補正済光線として出射する。
The first correction light beam corrected by the first optical axis changing unit 2 is incident on the second optical axis changing unit (second optical axis changing unit) 3, and the second optical axis changing unit 3 The optical axis is bent so that the first correction light beam corrected by the one optical axis portion 2 passes through the center of the principal point of the photographing optical system (not shown), for example, the center of the principal point of the imaging lens, Emit as a corrected ray.
【0054】第一光軸部2と第二光軸変更部3は、例え
ば、図4に示すように、被写体aが、撮像装置1の振動
により相対的に並進移動B、回転移動θに変位して、被
写体a’となったとすると、変位前の被写体aの光(被
写体光線)は、第一光軸変更部2上のP位置を通過し
て、第二光軸変更部3上のQ位置を通過し、撮影光学系
6の撮影レンズ7の主点上のO位置を通過して、結像面
8のI位置に結像する。
In the first optical axis section 2 and the second optical axis changing section 3, for example, as shown in FIG. 4, the subject a is displaced relative to the translational movement B and the rotational movement θ by the vibration of the image pickup apparatus 1. Then, assuming that the subject is a ′, the light of the subject a before displacement (subject ray) passes through the P position on the first optical axis changing unit 2 and Q on the second optical axis changing unit 3. The light passes through the position, passes through the O position on the principal point of the taking lens 7 of the taking optical system 6, and forms an image at the I position on the image forming surface 8.
【0055】次に、撮像装置1の振動等で相対移動した
被写体をa’の光の場合には、被写体光線は、第一光軸
変更部2のP’位置に入射、第一光軸変更部2は、被写
体aからの被写体光線が通過した第二光軸変更部3のQ
位置に入射するように、被写体a’からの被写体光線の
光路を変更して、第一補正光線として入射させる。
Next, in the case of the light a ′ of the object relatively moved by the vibration of the image pickup apparatus 1 or the like, the object light beam is incident on the position P ′ of the first optical axis changing portion 2 and the first optical axis is changed. The part 2 is the Q of the second optical axis changing part 3 through which the subject light ray from the subject a has passed.
The optical path of the subject light ray from the subject a ′ is changed so as to be incident on the position, and is incident as the first correction light ray.
【0056】第二光軸変更部3は、第一光軸変更部2か
らQ位置に第一補正光線が入射されると、被写体aから
の光が通過した位置である撮影レンズ7の主点上のO位
置に入射するように、第一補正光線の光路を変更する。
The second optical axis changing section 3 receives the first correction light beam from the first optical axis changing section 2 at the Q position, and the principal point of the photographing lens 7 at the position where the light from the object a has passed. The optical path of the first correction light beam is changed so as to be incident on the upper O position.
【0057】したがって、被写体aからの光の結像面8
への入射位置と同じ入射位置である位置Iに入射させ
て、結像させることができる。
Therefore, the image plane 8 for the light from the subject a
It is possible to form an image by making it incident on a position I which is the same incident position as the incident position on.
【0058】すなわち、撮像装置1の振動等による相対
的並進移動、相対的回転移動が発生した場合、図4に示
したように、この振動等による相対的並進移動と相対的
回転移動を相殺するように、第一光軸変更部2及び第二
光軸変更部3を動作させることで、撮影光学系に同じ像
高、同じ入射角で入射させて、結像面8に結像される像
の変位を抑制することができる。
That is, when a relative translational movement or a relative rotational movement occurs due to the vibration of the image pickup apparatus 1, as shown in FIG. 4, the relative translational movement due to the vibration or the like and the relative rotational movement are canceled. As described above, by operating the first optical axis changing unit 2 and the second optical axis changing unit 3, an image formed on the image forming surface 8 by being incident on the photographing optical system at the same image height and the same incident angle. Can be suppressed.
【0059】上記第一光軸変更部2及び第二光軸変更部
3は、図5に示すように、並進による像ぶれのみを補正
することもできるし、また、図6に示すように、回転に
よる像ぶれのみを補正することもできる。すなわち、第
一光軸変更部2及び第二光軸変更部3は、並進回転補
正、並進補正、回転補正を適宜行うことができる。
The first optical axis changing section 2 and the second optical axis changing section 3 can correct only the image blur caused by translation as shown in FIG. 5, and as shown in FIG. It is also possible to correct only the image blur due to rotation. That is, the first optical axis changing unit 2 and the second optical axis changing unit 3 can appropriately perform translational rotation correction, translational correction, and rotation correction.
【0060】上記第一光軸変更部2及び第二光軸変更部
3としては、例えば、図7に示すように、第一光軸変更
部2として、第一反射板11を用い、第二光軸変更部3
として、第二反射板12を用いて、これらの第一反射板
11と第二反射板12を回転させて光軸を変更するもの
であってもよい。
As the first optical axis changing section 2 and the second optical axis changing section 3, for example, as shown in FIG. 7, a first reflecting plate 11 is used as the first optical axis changing section 2, Optical axis changing unit 3
Alternatively, the second reflection plate 12 may be used to rotate the first reflection plate 11 and the second reflection plate 12 to change the optical axis.
【0061】すなわち、図7において、振れ等が発生す
る前の最初の被写体からの光r0が、第一反射板11の
P0位置で反射して、第二反射板12のQ0位置で反射
し、撮影レンズ7の主点上のO位置を通って結像面8に
結像する場合、振れ等が発生して移動後の光r1が第一
反射板11に入射されると、第一反射板11は、第二反
射板12の最初の光r0が入射したQ0に移動後の光r
1が入射するように、回転し、第二反射板12は、最初
の光r0が入射した撮影レンズ7のO位置に移動後の光
r1が入射するように、回転して、最初に被写体からの
光r0が結像した結像面8の位置と同じ結像面8の位置
に結像する。
That is, in FIG. 7, the light r0 from the first subject before the occurrence of shake or the like is reflected at the P0 position of the first reflection plate 11 and at the Q0 position of the second reflection plate 12, When an image is formed on the image forming surface 8 through the O position on the principal point of the taking lens 7, when the moved light r1 is incident on the first reflection plate 11, the first reflection plate 11 is moved. Reference numeral 11 denotes the light r after moving to Q0 on which the first light r0 of the second reflection plate 12 is incident.
1 rotates so that the first light r0 enters, and the second reflecting plate 12 rotates so that the light r1 after moving enters the O position of the photographing lens 7 where the first light r0 enters. The light r0 is imaged at the same position on the image forming surface 8 as the image forming surface 8.
【0062】この場合、第一反射板11と第二反射板1
2は、2枚の反射板11、12が平行の場合に、2枚の
反射板11、12の回転角が同じになるため、図8に示
すように、クランク13で連結し、ラック14とビニオ
ンギヤ15及びスプリング16で駆動することで、常に
平行になるようにすると、適切に動作させることができ
る。このようにすると、並進成分のみを補正することが
できる。
In this case, the first reflector 11 and the second reflector 1
2, the two reflectors 11 and 12 have the same rotation angle when the two reflectors 11 and 12 are parallel to each other. Therefore, as shown in FIG. By driving the pinion gear 15 and the spring 16 so that the pinion is always parallel, proper operation can be achieved. By doing so, only the translational component can be corrected.
【0063】また、第一光軸変更部2及び第二光軸変更
部3としては、例えば、図9に示すように、第一光軸変
更部2として平面反射板17を用い、第二光軸変更部3
として可変頂角プリズム18を用いて、平面反射板17
を回転させるとともに、可変頂角プリズム18の頂角を
変化させて光軸を変更するものであってもよい。
As the first optical axis changing section 2 and the second optical axis changing section 3, for example, as shown in FIG. 9, a flat reflecting plate 17 is used as the first optical axis changing section 2 and the second optical axis changing section 2 is used. Axis change part 3
The variable angle prism 18 is used as the flat reflector 17
May be rotated and the apex angle of the variable apex angle prism 18 may be changed to change the optical axis.
【0064】すなわち、図9において、振れ等が発生す
る前の最初の被写体からの光r0が、平面反射板17の
P0位置で反射して、可変頂角プリズム18のQ0位置
を通過して、撮影レンズ7の主点上のO位置を通って結
像面8に結像する場合、振れ等が発生して移動後の光r
1が平面反射板17に入射されると、平面反射板17
は、可変頂角プリズム18の最初の光r0が入射したQ
0位置に移動後の光r1が入射するように、回転し、可
変頂角プリズム18は、最初の光r0が入射した撮影レ
ンズ7のO位置に移動後の光r1が入射するように、頂
角が変化して、最初に被写体からの光r0が結像した結
像面8の位置と同じ結像面8の位置に結像する。
That is, in FIG. 9, the light r0 from the first subject before the occurrence of shake or the like is reflected at the P0 position of the flat reflector 17 and passes through the Q0 position of the variable apex angle prism 18, When an image is formed on the image forming surface 8 through the O position on the principal point of the taking lens 7, a shake or the like occurs and the light r after the movement is moved.
When 1 is incident on the flat reflector 17, the flat reflector 17
Is the Q upon which the first light r0 of the variable apex angle prism 18 is incident.
The variable apex angle prism 18 rotates so that the moved light r1 is incident on the 0 position, and the variable apex angle prism 18 is adjusted so that the moved light r1 is incident on the O position of the photographing lens 7 where the first light r0 is incident. The angle changes, and the light r0 from the subject is imaged at the same position on the image forming surface 8 as the image forming surface 8 at which the image is formed.
【0065】さらに、第一光軸変更部2及び第二光軸変
更部3としては、図9とは逆に、図10に示すように、
第一光軸変更部2として可変頂角プリズム19を用い、
第二光軸変更部3として平面反射板20を用いて、可変
頂角プリズム19の頂角を変化させるとともに、平面反
射板20を回転させて光軸を変更するものであってもよ
い。
Further, as the first optical axis changing section 2 and the second optical axis changing section 3, as shown in FIG. 10, contrary to FIG.
A variable apex angle prism 19 is used as the first optical axis changing unit 2,
The flat reflecting plate 20 may be used as the second optical axis changing unit 3 to change the apex angle of the variable vertical angle prism 19 and rotate the flat reflecting plate 20 to change the optical axis.
【0066】すなわち、図10において、振れ等が発生
する前の最初の被写体からの光r0が、可変頂角プリズ
ム19の中心位置を通過して、平面反射板20のQ0位
置をで反射して、撮影レンズ7の主点上のO位置を通っ
て結像面8に結像する場合、振れ等が発生して移動後の
光r1が可変頂角プリズム19に入射されると、可変頂
角プリズム19は、平面反射板20の最初の光r0が入
射したQ0位置に移動後の光r1が入射するように、そ
の頂角が変化し、平面反射板20は、最初の光r0が入
射した撮影レンズ7のO位置に移動後の光r1が入射す
るように、回転して、最初に被写体からの光r0が結像
した結像面8の位置と同じ結像面8の位置に結像する。
That is, in FIG. 10, the light r0 from the first subject before the occurrence of shake or the like passes through the central position of the variable apex angle prism 19 and is reflected at the Q0 position of the plane reflection plate 20. In the case where an image is formed on the image forming surface 8 through the O position on the principal point of the taking lens 7, when the light r1 after movement is incident on the variable apex angle prism 19 due to a shake or the like, the variable apex angle is changed. The prism 19 has its apex angle changed so that the moved light r1 enters the Q0 position where the first light r0 of the flat reflection plate 20 enters, and the flat reflection plate 20 receives the first light r0. The photographing lens 7 is rotated so that the moved light r1 is incident on the O position of the photographic lens 7, and an image is formed at the same image forming surface 8 position as the image forming surface 8 at which the light r0 from the subject is first formed. To do.
【0067】また、第一光軸変更部2及び第二光軸変更
部3としては、図11に示すように、2個の可変頂角プ
リズム21、22を用い、これらの可変頂角プリズム2
1、22の頂角を変化させて光軸を変更するものであっ
てもよい。
Further, as the first optical axis changing unit 2 and the second optical axis changing unit 3, as shown in FIG. 11, two variable vertical angle prisms 21 and 22 are used, and these variable vertical angle prisms 2 are used.
The optical axes may be changed by changing the apex angles of 1 and 22.
【0068】すなわち、図11において、振れ等が発生
する前の最初の被写体からの光r0が、可変頂角プリズ
ム21の中心位置を通過し、可変頂角プリズム22のQ
0位置をで通過して、撮影レンズ7の主点上のO位置を
通って結像面8に結像する場合、振れ等が発生して移動
後の光r1が可変頂角プリズム21に入射されると、可
変頂角プリズム21は、可変頂角プリズム22の最初の
光r0が入射したQ0位置に移動後の光r1が入射する
ように、その頂角が変化し、可変頂角プリズム22は、
最初の光r0が入射した撮影レンズ7のO位置に移動後
の光r1が入射するように、その頂角が変化して、最初
に被写体からの光r0が結像した結像面8の位置と同じ
結像面8の位置に結像する。
That is, in FIG. 11, the light r0 from the first subject before the occurrence of shake or the like passes through the central position of the variable apex angle prism 21, and the Q of the variable apex angle prism 22 is changed.
When passing through the 0 position and passing through the O position on the principal point of the taking lens 7 to form an image on the image plane 8, the light r1 after the movement is incident on the variable apex angle prism 21 due to a shake or the like. Then, the apex angle of the variable apex angle prism 21 is changed so that the light r1 after the movement is incident on the Q0 position where the first light r0 of the variable apex angle prism 22 is incident. Is
The apex angle is changed so that the light r1 after the movement is incident on the O position of the photographing lens 7 where the first light r0 is incident, and the position of the image plane 8 where the light r0 from the subject is imaged first. An image is formed at the same position on the image plane 8 as
【0069】なお、上記第一光軸変更部2及び第二光軸
変更部3は、ともに並進補正手段及び回転補正手段とし
て機能するが、並進補正手段としてのみ機能させ、他の
回転ぶれ補正手段(回転成分補正手段)と組み合わせて
使用してもよい。
Although both the first optical axis changing section 2 and the second optical axis changing section 3 function as translation correction means and rotation correction means, they are made to function only as translation correction means and other rotation shake correction means. It may be used in combination with (rotational component correction means).
【0070】このような回転ぶれ補正手段(回転成分補
正手段)としては、例えば、図12に示すような可変頂
角プリズム23を用いてもよい。この可変頂角プリズム
23は、一対のカバーガラス24と蛇腹25で封止され
た封止室内に光学液体26が封入され、カバーガラス2
4の角度を変化させることで、頂角を変化させる。
As such a rotational shake correction means (rotational component correction means), for example, a variable apex angle prism 23 as shown in FIG. 12 may be used. In this variable apex angle prism 23, an optical liquid 26 is enclosed in a sealing chamber that is sealed by a pair of cover glasses 24 and a bellows 25.
The apex angle is changed by changing the angle of 4.
【0071】また、回転ぶれ補正手段としては、撮影光
学系の一部を変位させる方式のもの、撮影光学系と撮像
素子またはフイルム等の撮像物との相対位置関係を変位
させる方式のもの、さらに、撮影光学系と撮像素子また
はフイルム等の撮像物全体を回転させる方式のもの等を
用いることができる。
Further, as the rotation blur correcting means, a method of displacing a part of the photographic optical system, a method of displacing the relative positional relationship between the photographic optical system and an imaged object such as an image sensor or a film, and It is possible to use a system of rotating the entire imaged object such as a photographing optical system and an image pickup element or a film.
【0072】例えば、図13に示すように、2枚の反射
板27、28を用いた並進ぶれ補正部29と、撮像素子
30を変位させて回転ぶれの補正を行う回転ぶれ補正部
とを組み合わせてもよい。この場合、2枚の反射板2
7、28で並進ぶれ補正を行い、撮像素子30を図13
に矢印で示すように変位させて、回転ぶれを補正する。
For example, as shown in FIG. 13, a combination of a translational shake correction unit 29 using two reflection plates 27 and 28 and a rotation shake correction unit for displacing the image pickup device 30 to correct the rotation shake. May be. In this case, two reflectors 2
13 and 28 are used to perform translational shake correction, and
Displace as shown by the arrow to correct the rotational shake.
【0073】また、図14に示すように、撮像素子を変
位させて回転ぶれ補正を行う代わりに、撮像素子30か
ら得られる全体画像から一部を切り出して、回転ぶれ補
正を行ってもよい。すなわち、ビデオカメラのような撮
像素子を用いて画像を撮像する場合、回転補正として、
電気的に撮像範囲を切り出す方式を使用し、並進補正と
して、上述のような方式のものを使用してもよい。
Further, as shown in FIG. 14, instead of displacing the image sensor to perform the rotational blur correction, a part of the entire image obtained from the image sensor 30 may be cut out to perform the rotational blur correction. That is, when an image is captured using an image sensor such as a video camera, the rotation correction is
A method of electrically cutting out the imaging range may be used, and a method of the above-described method may be used as the translational correction.
【0074】なお、上記各説明では、第一光軸変更部2
と第二光軸変更部3を撮影光学系6の手前に配設する場
合について説明したが、図15及び図16に示すよう
に、第一光軸変更部2のみを撮影光学系6の手前に配設
してもよい。すなわち、図15及び図16では、撮影光
学系6の撮影レンズ7の手前に第一光軸変更部2を配設
し、第二光軸変更部3としては、撮影光学系6と撮像素
子である結像面8の全体を回転させる機構としている。
In the above description, the first optical axis changing section 2 is used.
The case where the second optical axis changing unit 3 and the second optical axis changing unit 3 are arranged in front of the photographing optical system 6 has been described. However, as shown in FIGS. 15 and 16, only the first optical axis changing unit 2 is arranged in front of the photographing optical system 6. It may be arranged at. That is, in FIGS. 15 and 16, the first optical axis changing unit 2 is arranged in front of the taking lens 7 of the taking optical system 6, and the second optical axis changing unit 3 is constituted by the taking optical system 6 and the image pickup device. The mechanism is such that the entire image plane 8 is rotated.
【0075】また、この場合、第二光軸変更部3として
は、図17に示すように、撮影光学系6の撮影レンズ7
と撮像素子である結像面8を、相対的に変位させてもよ
い。なお、図17は、第一光軸変更部2として反射板を
用いたものである。
In this case, as the second optical axis changing section 3, as shown in FIG. 17, the taking lens 7 of the taking optical system 6 is used.
The image plane 8 which is an image sensor may be relatively displaced. In addition, in FIG. 17, a reflector is used as the first optical axis changing unit 2.
【0076】さらに、撮像装置1がビデオカメラ等の撮
像素子を用いたものであるときには、第二光軸変更部2
としては、撮像画面全体から画像の一部を切り出す電気
的な方式のものを用いてもよい。
Further, when the image pickup apparatus 1 uses an image pickup element such as a video camera, the second optical axis changing unit 2
As the above, an electrical method of cutting out a part of the image from the entire imaging screen may be used.
【0077】また、第一光軸変更部2と第二光軸変更部
3は、撮像装置1と被写体との相対的な変位による回転
ぶれと並進ぶれを補正するが、この回転ぶれと並進ぶれ
を補正するのに、回転補正と並進補正を二つに分けて構
成してもよいし、上述のように、第一光軸変更部2と第
二光軸変更部3を設けて、回転ぶれと並進ぶれを同時に
補正してもよいし、さらに、第一光軸変更部2と第二光
軸変更部3として撮影光学系6の回転や変位を行う方式
のものを用いてもよいし、また、第一光軸変更部2と第
二光軸変更部3として画像切り出し方式のものを用いて
もよい。
The first optical axis changing unit 2 and the second optical axis changing unit 3 correct the rotational shake and the translational shake due to the relative displacement between the image pickup apparatus 1 and the object. The rotational shake and the translational shake are corrected. In order to correct the rotation error, the rotation correction and the translational correction may be divided into two, or, as described above, the first optical axis changing unit 2 and the second optical axis changing unit 3 may be provided and the rotational shake may be corrected. And translational shake may be corrected at the same time, or a system for rotating or displacing the photographing optical system 6 may be used as the first optical axis changing unit 2 and the second optical axis changing unit 3. Further, as the first optical axis changing unit 2 and the second optical axis changing unit 3, image cutout type may be used.
【0078】さらに、上記説明では、説明を簡略化する
ために、1軸について説明を行ったが、XYの2軸構成
にしてもよい。この場合、複数の軸に対して、それぞれ
第一光軸変更部2と第二光軸変更部3を設けるが、反射
板や可変頂角プリズムの変位方向を2軸にすることで対
応することができる。
Further, in the above description, for simplification of description, one axis is described, but an XY biaxial structure may be used. In this case, the first optical axis changing unit 2 and the second optical axis changing unit 3 are provided for a plurality of axes, respectively, but it can be dealt with by making the displacement directions of the reflecting plate and the variable apex angle prism two axes. You can
【0079】上記図2において、ぶれ検出・算出部4
は、撮像装置1の振動の回転成分と並進成分を同時に検
出し、検出した撮像装置1の振動から回転ぶれ量と並進
ぶれ量を算出して、算出した回転量(回転ぶれ量)θと
並進量(並進ぶれ量)Bを図示しない制御部に出力し
て、制御部で上記第一光軸変更部2と第二光軸変更部3
を駆動して、回転ぶれと並進ぶれの補正を行う。
In FIG. 2, the blur detection / calculation unit 4
Simultaneously detects the rotational component and the translational component of the vibration of the image pickup apparatus 1, calculates the rotational shake amount and the translational shake amount from the detected vibration of the image pickup apparatus 1, and calculates the calculated rotational amount (rotational shake amount) θ and the translational amount. The amount (translational shake amount) B is output to a control unit (not shown), and the control unit causes the first optical axis changing unit 2 and the second optical axis changing unit 3 to operate.
Is driven to correct rotational shake and translational shake.
【0080】この撮像装置1の振動の回転成分と並進成
分を検出するぶれ検出・算出部4は、図2に示すよう
に、2つの加速度検出部31、32とぶれ量算出部33
を備えており、2つの加速度検出部31、32が撮像装
置1の2方向の加速度から撮像装置1の回転と並進を同
時に検出して、ぶれ量算出部33に出力する。ぶれ量算
出部33は、二つの加速度検出部31、32の出力の差
分から角加速度を検出し、二つの加速度検出部31、3
2の出力の平均から並進加速度を検出する。そして、ぶ
れ量算出部33は、二つの加速度検出部31、32の出
力の差分から検出した角加速度と二つの加速度検出部3
1、32の出力の平均から検出した並進加速度を積分し
て、回転ぶれ量と並進ぶれ量を算出し、回転ぶれ量と並
進ぶれ量を第一光軸変更部2と第二光軸変更部3に出力
する。
As shown in FIG. 2, the shake detection / calculation unit 4 for detecting the rotation component and translational component of the vibration of the image pickup apparatus 1 has two acceleration detection units 31, 32 and a shake amount calculation unit 33.
The two acceleration detection units 31 and 32 simultaneously detect the rotation and translation of the image pickup apparatus 1 from the two-direction acceleration of the image pickup apparatus 1, and output the rotation and translation to the shake amount calculation unit 33. The shake amount calculation unit 33 detects the angular acceleration from the difference between the outputs of the two acceleration detection units 31 and 32, and the two acceleration detection units 31 and 3
The translational acceleration is detected from the average of the two outputs. Then, the blur amount calculation unit 33 and the two acceleration detection units 3 and the angular acceleration detected from the difference between the outputs of the two acceleration detection units 31 and 32.
The translational acceleration detected from the average of the outputs of 1 and 32 is integrated to calculate the rotational shake amount and the translational shake amount, and the rotational shake amount and the translational shake amount are calculated by the first optical axis changing unit 2 and the second optical axis changing unit. Output to 3.
【0081】そして、ぶれ量の検出と算出は、上記ぶれ
検出・算出部4を用いるものに限るものではなく、例え
ば、図3に示すぶれ検出・算出部5で、像変位量を検出
して、ぶれ量を算出してもよい。
The detection and calculation of the blur amount are not limited to those using the blur detection / calculation unit 4, and for example, the blur detection / calculation unit 5 shown in FIG. 3 detects the image displacement amount. Alternatively, the blur amount may be calculated.
【0082】図3において、ぶれ検出・算出部5は、画
像比較部41、ぶれ量算出部42及び測距部43等を備
えており、画像比較部41には、撮像装置1の撮影光学
系を通して撮像素子に入力された被写体からの入力光を
撮像素子で繰り返し撮像した複数の画像情報が入力され
る。
In FIG. 3, the blur detection / calculation unit 5 includes an image comparison unit 41, a blur amount calculation unit 42, a distance measurement unit 43, etc., and the image comparison unit 41 includes a photographing optical system of the image pickup apparatus 1. A plurality of pieces of image information obtained by repeatedly capturing the input light from the subject input to the image sensor through the image sensor is input.
【0083】画像比較部41は、撮像素子が繰り返し撮
像した複数の画像情報に基づいて像変位量を算出し、ぶ
れ量算出部42に出力する。
The image comparison section 41 calculates an image displacement amount based on a plurality of pieces of image information captured by the image sensor repeatedly, and outputs it to the blur amount calculation section 42.
【0084】測距部43は、撮像装置1と被写体との距
離を測定して、距離情報をぶれ量算出部42に出力す
る。なお、撮像装置1と被写体との距離は、測距部43
で測定するものに限るものではなく、例えば、撮影光学
系6をフォーカス手段を用いてデフォーカスして画像の
ピントを検出し、被写体との距離を算出してもよい。
The distance measuring section 43 measures the distance between the image pickup apparatus 1 and the subject and outputs the distance information to the blur amount calculating section 42. The distance between the image pickup apparatus 1 and the subject is determined by the distance measuring unit 43.
The distance to the subject may be calculated by, for example, defocusing the photographing optical system 6 by using a focusing unit to detect the focus of the image, and measuring the distance.
【0085】ぶれ量算出部42は、画像比較部41から
の像変位量と測距部43からの距離情報に基づいて、回
転ぶれ量と並進ぶれ量を算出して、回転ぶれ量と並進ぶ
れ量を第一光軸変更部2と第二光軸変更部3に出力す
る。
The shake amount calculation unit 42 calculates the rotation shake amount and the translation shake amount based on the image displacement amount from the image comparison unit 41 and the distance information from the distance measurement unit 43, and the rotation shake amount and the translation shake amount. The amount is output to the first optical axis changing unit 2 and the second optical axis changing unit 3.
【0086】具体的には、撮像装置1の手ぶれ等による
振動によって発生する回転移動をθ、並進移動をBとす
ると、画角中央の回転ぶれ量dθは、dθ=f×tan
θ、並進ぶれ量dBは、撮像装置1と被写体との距離を
L、焦点距離をfとすると、dB=B×f/L、画角中
央の総ぶれ量dは、d=f×B/L+f×tanθとな
り、距離L1の近景の像変位をd1とし、距離L2の背
景の像変位量をd2とすると、1/Lとdとの関係は、
図18に示すように、切片が、dθ(=f×tan
θ)、傾きが、f×Bの直線関係になる。
Specifically, when the rotational movement generated by vibration of the image pickup apparatus 1 due to camera shake or the like is θ and the translational movement is B, the rotational shake amount dθ at the center of the angle of view is dθ = f × tan.
θ and translational shake amount dB are dB = B × f / L, and the total shake amount d at the center of the angle of view is d = f × B /, where L is the distance between the image pickup apparatus 1 and the subject and f is the focal length. L + f × tan θ, where d1 is the image displacement of the near view at the distance L1 and d2 is the amount of image displacement of the background at the distance L2, the relationship between 1 / L and d is
As shown in FIG. 18, the intercept is dθ (= f × tan
θ) and the inclination have a linear relationship of f × B.
【0087】したがって、2つの距離の被写体の像変位
量が分かると、並進量Bと回転角θは、次式で与えられ
る。
Therefore, when the image displacement amount of the object at two distances is known, the translation amount B and the rotation angle θ are given by the following equations.
【0088】 B=(d1−d2)/(f×(X1−X2)) θ=arctan((d2×X1−d1×X2)/(f
×(X1−X2))) ここで、X1=1/L1、X2=1/L2とする。
B = (d1−d2) / (f × (X1−X2)) θ = arctan ((d2 × X1−d1 × X2) / (f
X (X1-X2))) Here, it is assumed that X1 = 1 / L1 and X2 = 1 / L2.
【0089】ところが、画角内に2つの距離の被写体が
ないときは、上記方法を用いることができない。この場
合には、画面全体に同じ距離の被写体しかない場合であ
り、このような場合は、並進と回転に分けて補正する必
要がないため、一つの像ぶれ量を補正するように、第一
光軸変更部2と第二光軸変更部3のうち、どちらか一方
を使用して補正すればよいことになる。
However, when there is no subject at two distances within the angle of view, the above method cannot be used. In this case, there are cases where there are only objects at the same distance on the entire screen. In such a case, it is not necessary to separately correct the translation and rotation, so it is necessary to correct one image blur amount. Either the optical axis changing unit 2 or the second optical axis changing unit 3 may be used for correction.
【0090】なお、上記説明では、画角中央に被写体の
画像があるものとして総ぶれ量を求める場合について説
明したが、実際は画角中央に被写体が在るとは限らな
い。
In the above description, the case where the total amount of blur is calculated assuming that the image of the subject is at the center of the angle of view has been described. However, the subject does not always exist at the center of the angle of view.
【0091】そこで、次に、画角の任意の位置に被写体
がある場合の総ぶれ量について説明する。
Therefore, the total blur amount when the subject is present at an arbitrary position of the angle of view will be described.
【0092】並進ぶれdBは、画角の位置によらないの
で、dB=B×f/Lとなる。
Since the translational blur dB does not depend on the position of the angle of view, dB = B × f / L.
【0093】画角中心から離れたθ0の位置にある画像
の回転ぶれdθは、図19に示すように、dθ=f×
(tan(θ+θ0)−tanθ0)となる。
As shown in FIG. 19, the rotational shake dθ of the image at the position of θ0 far from the center of the angle of view is dθ = f ×
(Tan (θ + θ0) −tan θ0).
【0094】したがって、総ぶれ量dは、d=f×B/
L+f×(tan(θ+θ0)−tanθ0)となる。
Therefore, the total blur amount d is d = f × B /
L + f × (tan (θ + θ0) −tan θ0).
【0095】そして、いま、被写体角度θ1、距離L1
の近景の像変位d1と、被写体角度θ2、距離L2の背
景の像変位量d2を検出したとすると、撮影光学系の焦
点距離fと被写体角度θ1、θ2は既知であるため、次
式で示す連立方程式を解くことで、回転移動θと並進移
動Bを求めることができる。
Now, the subject angle θ1 and the distance L1
Suppose that the image displacement d1 of the near view, the subject angle θ2, and the background image displacement amount d2 of the distance L2 are detected, the focal length f of the photographing optical system and the subject angles θ1 and θ2 are known, and therefore the following formula is given. By solving the simultaneous equations, the rotational movement θ and the translational movement B can be obtained.
【0096】 d1=f×B/L1+f×(tanθ/cos(θ+θ
1)) d2=f×B/L2+f×(tanθ/cos(θ+θ
2)) また、通常、ぶれ量θは、小さい値を取るため、次式の
ように近似することで、上記連立方程式を以下に示すよ
うに簡略化することができる。
D1 = f × B / L1 + f × (tan θ / cos (θ + θ
1)) d2 = f × B / L2 + f × (tan θ / cos (θ + θ
2)) Further, since the shake amount θ usually takes a small value, the simultaneous equations can be simplified as shown below by approximating the following equation.
【0097】cos(θ+θ1)≒cosθ1 cos(θ+θ2)≒cosθ2 d1=f×B/L1+f×(tanθ/cosθ1) d2=f×B/L2+f×(tanθ/cosθ2) ここで、X1=1/L1、X2=1/L2として、この
連立方程式を解くと、回転移動θと並進移動Bは、次式
で与えられる。
Cos (θ + θ1) ≈cos θ1 cos (θ + θ2) ≈cos θ2 d1 = f × B / L1 + f × (tan θ / cos θ1) d2 = f × B / L2 + f × (tan θ / cos θ2) where X1 = 1 / L1, When this simultaneous equation is solved with X2 = 1 / L2, the rotational movement θ and the translational movement B are given by the following equations.
【0098】B=(d1×cosθ1−d2×cosθ
2)/(f×cosθ1/L1−f×cosθ2/L
2) θ=arctan(cosθ1×cosθ2×(d2×
X1−d1×X2)/(f×(cosθ1X1−cos
θ2×X2))) そこで、ぶれ量算出部42は、上記式に基づいて、画角
内の異なった被写体距離の被写体の像変位を検出して、
回転量θと並進量Bを算出し、算出した回転量(回転ぶ
れ量)θと並進量(並進ぶれ量)Bを図示しない制御部
に出力して、制御部で上記第一光軸変更部2と第二光軸
変更部3を駆動して、回転ぶれと並進ぶれの補正を行
う。
B = (d1 × cos θ1−d2 × cos θ
2) / (f × cos θ1 / L1-f × cos θ2 / L
2) θ = arctan (cos θ1 × cos θ2 × (d2 ×
X1-d1 × X2) / (f × (cos θ1X1-cos
θ2 × X2))) Then, the blur amount calculation unit 42 detects the image displacement of the subject at different subject distances within the angle of view based on the above equation,
The rotation amount θ and the translation amount B are calculated, and the calculated rotation amount (rotational shake amount) θ and translation amount (translation shake amount) B are output to a control unit (not shown). 2 and the second optical axis changing unit 3 are driven to correct rotational shake and translational shake.
【0099】次に、本実施の形態の作用を説明する。本
実施の形態の撮像装置1は、ぶれ検出・算出部4または
ぶれ検出・算出部5で撮像装置1の振動による回転ぶれ
量と並進ぶれ量を検出し、検出した回転ぶれ量と並進ぶ
れ量を第一光軸変更部2及び第二光軸変更部3で補正す
る。
Next, the operation of this embodiment will be described. In the image pickup apparatus 1 of the present embodiment, the shake detection / calculation unit 4 or the shake detection / calculation unit 5 detects the rotational shake amount and the translation shake amount due to the vibration of the image pickup device 1, and the detected rotation shake amount and the translation shake amount. Is corrected by the first optical axis changing unit 2 and the second optical axis changing unit 3.
【0100】まず、撮像装置1の手ぶれ等による振動よ
って発生する像変位について説明する。図20に示すよ
うに、撮像装置1が振動している場合、二つの成分の振
動が存在し、図20に矢印で示すように、撮像装置1の
撮影光学系の主点1aを中心とした回転移動と主点1a
の並進移動とが存在する。
First, the image displacement caused by vibration of the image pickup apparatus 1 due to camera shake or the like will be described. As shown in FIG. 20, when the image pickup apparatus 1 is vibrating, there are two component vibrations, and as shown by the arrow in FIG. 20, the principal point 1a of the image pickup optical system of the image pickup apparatus 1 is centered. Rotational movement and principal point 1a
There is a translational movement of.
【0101】主点1aを中心とした回転移動による像変
位は、図21のように示すことができ、撮影光学系(具
体的には、撮影レンズ7)の焦点距離をf、回転移動を
θとした場合、画面中央の像変位dθは、次式(1)で
与えられる。
The image displacement due to the rotational movement around the principal point 1a can be shown as shown in FIG. 21, and the focal length of the photographing optical system (specifically, the photographing lens 7) is f and the rotational movement is θ. In this case, the image displacement dθ at the center of the screen is given by the following equation (1).
【0102】dθ=f×tanθ・・・(1) 次に、主点1aの並進移動による像変位は、図22のよ
うに示すことができ、撮影光学系7の主点1aから被写
体までの距離をL、並進量をBとした場合、像変位dB
は、次式(2)で与えられる。
Dθ = f × tan θ (1) Next, the image displacement due to the translational movement of the principal point 1a can be shown as in FIG. 22, and from the principal point 1a of the photographing optical system 7 to the object. When the distance is L and the translation amount is B, the image displacement dB
Is given by the following equation (2).
【0103】dB=B×f/L・・・(2) 一般的に、撮像装置1の手ぶれ等による振動よって発生
する像変位は、上記式(1)と式(2)を合わせたもの
であり、並進移動を含む場合、撮像装置1の振動よって
発生する像変位は、撮影される被写体の距離Lによって
異なる。
DB = B × f / L (2) Generally, the image displacement generated by vibration of the image pickup apparatus 1 due to camera shake is a combination of the above equations (1) and (2). When the translational movement is included, the image displacement generated by the vibration of the imaging device 1 varies depending on the distance L of the subject to be photographed.
【0104】すなわち、撮影する画像で表すと、図23
に示すように、撮像装置1から近くに人物(近景)、遠
くに背景(遠景)が存在する場合、回転移動による像変
位は、図24に示すように、近景の人物も遠景の背景も
同じである。
That is, when expressed by the image to be photographed, FIG.
24, when a person (near view) is near and the background (distant view) is far from the imaging device 1, the image displacement due to the rotational movement is the same for both the person in the near view and the background in the distant view, as shown in FIG. Is.
【0105】ところが、並進移動による像変位は、図2
5に示すように、近景の人物は大きく遠景の背景は小さ
くなる。
However, the image displacement due to the translational movement is as shown in FIG.
As shown in FIG. 5, the person in the near view is large and the background in the distant view is small.
【0106】そこで、図25に示すような並進移動によ
る像変位を、撮影者の意図する被写体を人物とした場合
に、人物の像変位をなくすように回転ぶれ補正を行う
と、図26に示すように、背景が小さく像変位する。
Therefore, when the image displacement due to the translational movement as shown in FIG. 25 is corrected so as to eliminate the image displacement of the person when the object intended by the photographer is a person, the image displacement is shown in FIG. As described above, the background is slightly displaced and the image is displaced.
【0107】このように、並進移動による像変位を回転
ぶれ補正のみで補正すると、一定の距離以外のところで
は、像ぶれを補正することができない。
As described above, when the image displacement due to the translational movement is corrected only by the rotational blur correction, the image blur cannot be corrected at a distance other than a certain distance.
【0108】したがって、並進移動による像変位を適切
に補正するには、回転ぶれ補正だけでなく、並進ぶれ補
正を行う必要がある。
Therefore, in order to properly correct the image displacement due to the translational movement, it is necessary to perform not only the rotational blurring correction but also the translational blurring correction.
【0109】そして、並進移動による並進ぶれを補正す
るには、従来のように、撮像装置1が、図27に破線で
示すように、矢印B方向に並進移動した場合、撮影光学
系6全体を、反対方向の矢印Bで示すように、撮像装置
1の移動量を相殺するように、移動させればよいことに
なる。
Then, in order to correct the translational shake caused by the translational movement, when the image pickup apparatus 1 is translationally moved in the direction of arrow B as shown by the broken line in FIG. , As indicated by the arrow B in the opposite direction, the image pickup apparatus 1 may be moved so as to cancel the movement amount.
【0110】ところが、このように撮影光学系全体を移
動させるには、駆動装置が大掛かりなものとなって、撮
像装置1自体が大型化するとともに、コストが高くつく
という問題がある。
However, in order to move the entire photographing optical system as described above, there is a problem that the driving device becomes large in size, the image pickup apparatus 1 itself becomes large, and the cost becomes high.
【0111】そこで、本実施の形態の撮像装置1は、上
述した第一光軸変更部2及び第二光軸変更部3を提案し
ている。
Therefore, the image pickup apparatus 1 of the present embodiment proposes the above-mentioned first optical axis changing unit 2 and second optical axis changing unit 3.
【0112】そして、本実施の形態の撮像装置1は、図
2に示すぶれ検出・算出部4またはぶれ検出・算出部5
が、撮像装置1の振動の回転成分と並進成分を同時に検
出し、検出した撮像装置1の振動から回転ぶれ量と並進
ぶれ量を算出して、回転ぶれ量を制御部に出力する。
The image pickup apparatus 1 according to the present embodiment has the blur detection / calculation unit 4 or the blur detection / calculation unit 5 shown in FIG.
Detects the rotational component and the translational component of the vibration of the image pickup device 1 at the same time, calculates the rotational shake amount and the translational shake amount from the detected vibration of the image pickup device 1, and outputs the rotational shake amount to the control unit.
【0113】制御部が、ぶれ検出・算出部4またはぶれ
検出・算出部5から入力される回転ぶれ量と並進ぶれ量
を相殺するように、第一光軸変更部2及び第二光軸変更
部3を駆動して、回転ぶれと並進ぶれを同時に補正す
る。
The first optical axis changing unit 2 and the second optical axis changing unit control the control unit so as to cancel out the rotational shake amount and the translation shake amount input from the shake detecting / calculating unit 4 or the shake detecting / calculating unit 5. The unit 3 is driven to simultaneously correct rotational shake and translational shake.
【0114】このように、本実施の形態の撮像装置1
は、撮影対象の被写体からの光を撮影光学系6を通して
撮像素子に入射して、被写体の画像を撮像するに際し
て、撮像装置1の振動または被写体の移動等に伴う画像
の像ぶれの回転成分と並進成分を補正する第一光軸変更
部2と第二光軸変更部3を設けている。
As described above, the image pickup apparatus 1 of the present embodiment
Is a rotation component of the image blur of an image caused by vibration of the image pickup apparatus 1 or movement of the subject when light from the subject to be photographed is incident on the image pickup element through the photographing optical system 6 and the image of the subject is picked up. A first optical axis changing unit 2 and a second optical axis changing unit 3 for correcting the translational component are provided.
【0115】したがって、手ぶれや被写体の移動等で発
生する画像の像ぶれの回転成分と並進成分を補正するこ
とができ、画質を向上させることができる。
Therefore, it is possible to correct the rotational component and translational component of the image blur of the image caused by camera shake, movement of the subject, etc., and it is possible to improve the image quality.
【0116】また、本実施の形態の撮像装置1は、画像
の像ぶれの並進成分を第一光軸変更部2と第二光軸変更
部3で補正し、像ぶれの回転成分を可変頂角プリズム2
3等の回転成分補正手段で補正している。
Further, the image pickup apparatus 1 of the present embodiment corrects the translational component of the image blur of the image by the first optical axis changing unit 2 and the second optical axis changing unit 3 to change the rotational component of the image blur. Square prism 2
It is corrected by the rotation component correction means such as 3.
【0117】したがって、像ぶれの並進成分を適切に補
正するとともに、回転成分を従来技術を利用して補正す
ることができ、安価に画質を向上させることができる。
Therefore, the translational component of the image blur can be properly corrected and the rotational component can be corrected by utilizing the conventional technique, so that the image quality can be improved at low cost.
【0118】さらに、本実施の形態の撮像装置1は、撮
像装置1の振動または被写体の移動等に伴う画像の像ぶ
れの回転成分と並進成分をぶれ検出・算出部4やぶれ検
出・算出部5で検出し、被写体との距離である被写体距
離を測距部43で測定し、ぶれ検出・算出部4やぶれ検
出・算出部5の検出する回転成分と並進成分及び測距部
43の測定する被写体距離に基づいて並進補正量と回転
補正量をぶれ量算出部33やぶれ量算出部42で算出し
て、ぶれ量算出部33やぶれ量算出部42の算出した並
進補正量と回転補正量に基づいて第一光軸変更部2と第
二光軸変更部3または回転成分補正手段(回転ぶれ補正
手段)で回転成分と並進成分を補正している。
Further, the image pickup apparatus 1 according to the present embodiment detects the rotational component and translational component of the image blur of the image due to the vibration of the image pickup apparatus 1 or the movement of the subject, and the blur detection / calculation unit 4 and the blur detection / calculation unit 5. The object distance, which is the distance to the subject, is measured by the distance measuring unit 43, and the rotation component and the translation component detected by the blur detection / calculation unit 4 and the blur detection / calculation unit 5 and the subject measured by the distance measurement unit 43 are detected. A translation correction amount and a rotation correction amount are calculated by the blur amount calculation unit 33 and the blur amount calculation unit 42 based on the distance, and based on the translation correction amount and the rotation correction amount calculated by the blur amount calculation unit 33 and the blur amount calculation unit 42. The rotation component and the translation component are corrected by the first optical axis changing unit 2, the second optical axis changing unit 3, or the rotation component correction unit (rotational shake correction unit).
【0119】したがって、少ない補正量で手ぶれや被写
体の移動等で発生する画像の像ぶれの回転成分と並進成
分をより適切に補正することができ、安価に画質をより
一層向上させることができる。
Therefore, the rotational component and the translational component of the image blur of the image caused by the camera shake or the movement of the subject can be corrected more appropriately with a small correction amount, and the image quality can be further improved at low cost.
【0120】また、本実施の形態の撮像装置1は、撮像
装置1の振動または被写体の移動等に伴う当該撮像装置
1と当該被写体との相対変位に基づいて回転成分と並進
成分を相対変位検出手段で検出し、当該相対変位検出手
段の検出した回転成分と並進成分に基づいて第一光軸変
更部2と第二光軸変更部3または回転成分補正手段(回
転ぶれ補正手段)で回転成分と並進成分を補正してい
る。
Further, the image pickup apparatus 1 of the present embodiment detects the relative displacement between the rotational component and the translational component based on the relative displacement between the image pickup apparatus 1 and the subject due to the vibration of the image pickup apparatus 1 or the movement of the subject. Detected by the means, and based on the rotational component and translational component detected by the relative displacement detection means, the first optical axis changing unit 2 and the second optical axis changing unit 3 or the rotational component correcting unit (rotational shake correcting unit) rotates the rotational component. And the translation component is corrected.
【0121】したがって、少ない補正量で手ぶれや被写
体の移動等で発生する画像の像ぶれの回転成分と並進成
分をより適切に補正することができ、安価により一層画
質を向上させることができる。
Therefore, the rotational component and translational component of the image blur of the image caused by the camera shake or the movement of the subject can be corrected more appropriately with a small correction amount, and the image quality can be further improved at a low cost.
【0122】さらに、本実施の形態の撮像装置1は、ぶ
れ量算出部42で、被写体の画像の像変位を検出して回
転成分と並進成分を算出し、当該ぶれ量算出部42の算
出した回転成分と並進成分に基づいて第一光軸変更部2
と第二光軸変更部3または回転成分補正手段(回転ぶれ
補正手段)で回転成分と並進成分を補正している。
Further, in the image pickup apparatus 1 of the present embodiment, the blur amount calculating section 42 detects the image displacement of the image of the subject to calculate the rotation component and the translational component, and the blur amount calculating section 42 calculates. The first optical axis changing unit 2 based on the rotation component and the translation component
The second optical axis changing unit 3 or the rotation component correction means (rotational shake correction means) corrects the rotation component and the translation component.
【0123】したがって、手ぶれや被写体の移動等で発
生する画像の像ぶれの回転成分と並進成分をより適切に
かつ安価に補正することができ、安価により一層画質を
向上させることができる。
Therefore, it is possible to more appropriately and inexpensively correct the rotational component and translational component of the image blur of the image caused by camera shake, movement of the subject, etc., and it is possible to further improve the image quality at a low cost.
【0124】また、本実施の形態の撮像装置1は、第一
光軸変更部2及び第二光軸変更部3を、第一反射板11
と第二反射板12を有し、当該第一反射板11と第二反
射板12を回転させて被写体からの光の光軸を変更させ
て回転成分と並進成分または並進成分を補正するものと
している。
Further, in the image pickup apparatus 1 of this embodiment, the first optical axis changing section 2 and the second optical axis changing section 3 are connected to the first reflection plate 11.
And a second reflection plate 12 for rotating the first reflection plate 11 and the second reflection plate 12 to change the optical axis of the light from the subject to correct the rotation component and the translation component or the translation component. There is.
【0125】したがって、手ぶれや被写体の移動等で発
生する画像の像ぶれの回転成分と並進成分をより一層安
価に補正することができ、より一層安価に画質を向上さ
せることができる。
Therefore, the rotational component and translational component of the image blur of the image, which are caused by camera shake or movement of the subject, can be corrected at a lower cost, and the image quality can be improved at a lower cost.
【0126】さらに、本実施の形態の撮像装置1は、第
一光軸変更部2及び第二光軸変更部3を、2個の可変頂
角プリズム21、22を有し、当該2個の可変頂角プリ
ズム21、22の頂角を変化させて、または、当該2個
の可変頂角プリズム21、22への入射光と出射光の屈
折率を変化させて被写体からの光の光軸を変更させて回
転成分と並進成分または並進成分を補正するものとして
いる。
Further, the image pickup apparatus 1 of the present embodiment has the first optical axis changing section 2 and the second optical axis changing section 3 and the two variable apex angle prisms 21 and 22. The optical axes of the light from the subject are changed by changing the apex angles of the variable apex angle prisms 21 and 22, or by changing the refractive indexes of the incident light and the emitted light to the two variable apex angle prisms 21 and 22. The rotation component and the translational component or the translational component are changed to be corrected.
【0127】したがって、手ぶれや被写体の移動等で発
生する画像の像ぶれの回転成分と並進成分をより一層高
精度に補正することができ、画質をより一層向上させる
ことができる。
Therefore, the rotational component and translational component of the image blur of the image caused by camera shake or movement of the subject can be corrected with higher accuracy, and the image quality can be further improved.
【0128】また、本実施の形態の撮像装置1は、第一
光軸変更部2及び第二光軸変更部3を、第一光軸変更部
2として平面反射板17を用い、第二光軸変更部3とし
て可変頂角プリズム18を用い、平面反射板17を回転
させるとともに、当該可変頂角プリズム18の頂角を変
化させて、または、当該可変頂角プリズム18への入射
光と出射光の屈折率を変化させて回転成分と並進成分ま
たは並進成分を補正するものとしている。また、第一光
軸変更部2として可変頂角プリズム19を用い、第二光
軸変更部3として平面反射板20を用いて、可変頂角プ
リズム19の頂角を変化させるとともに、平面反射板2
0を回転させて光軸を変更している。
Further, the image pickup apparatus 1 according to the present embodiment uses the first optical axis changing section 2 and the second optical axis changing section 3 as the first optical axis changing section 2, and uses the flat reflecting plate 17 as the second optical axis changing section 2. A variable vertical angle prism 18 is used as the axis changing unit 3 and the plane reflecting plate 17 is rotated, and the vertical angle of the variable vertical angle prism 18 is changed, or the incident light to the variable vertical angle prism 18 and its output are changed. The refractive index of the incident light is changed to correct the rotation component and the translation component or the translation component. Further, the variable apex angle prism 19 is used as the first optical axis changing unit 2, and the plane reflecting plate 20 is used as the second optical axis changing unit 3, so that the apex angle of the variable apex angle prism 19 is changed and the plane reflecting plate is used. Two
The optical axis is changed by rotating 0.
【0129】したがって、手ぶれや被写体の移動等で発
生する画像の像ぶれの回転成分と並進成分を安価にかつ
より一層高精度に補正することができ、安価に画質をよ
り一層向上させることができる。
Therefore, the rotational component and translational component of the image blur of the image caused by camera shake, movement of the subject, etc. can be corrected at low cost and with higher accuracy, and the image quality can be further improved at low cost. .
【0130】さらに、本実施の形態の撮像装置1は、第
一光軸変更部2を、2枚の反射板17、20または可変
頂角プリズム18、19を備え、当該反射板17、20
を回転させ、または、当該可変頂角プリズム18、19
の頂角を変化させ、あるいは、当該可変頂角プリズム1
8、19への入射光と出射光の屈折率を変化させて並進
成分を補正するものとし、第二光軸変更部3を、撮像素
子を変位させて回転成分を補正するものとしている。
Further, the image pickup apparatus 1 of the present embodiment is provided with the first optical axis changing section 2 including two reflecting plates 17 and 20 or variable apex angle prisms 18 and 19, and the reflecting plates 17 and 20.
Or the variable apex angle prism 18, 19
Of the variable apex angle prism 1
It is assumed that the translational components are corrected by changing the refractive indexes of the incident light and the outgoing light to the light beams 8 and 19, and the second optical axis changing unit 3 is configured to correct the rotational component by displacing the image pickup element.
【0131】したがって、手ぶれや被写体の移動等で発
生する画像の像ぶれの回転成分と並進成分を安価にかつ
より一層高精度に補正することができ、安価に画質をよ
り一層向上させることができる。
Therefore, the rotational component and translational component of the image blur of the image caused by camera shake, movement of the subject, etc. can be corrected at low cost and with higher accuracy, and the image quality can be further improved at low cost. .
【0132】また、本実施の形態の撮像装置1は、第一
光軸変更部2を、反射板17、20または可変頂角プリ
ズム18、19を備え、当該反射板17、20を回転さ
せ、または、当該可変頂角プリズム18、19の頂角を
変化させ、あるいは、当該可変頂角プリズム18、19
への入射光と出射光の屈折率を変化させて並進成分を補
正するものとし、第二光軸変更部3を、撮影光学系6の
全体または一部を変位させて回転成分を補正するものと
している。
Further, the image pickup apparatus 1 of the present embodiment is provided with the first optical axis changing section 2 having the reflecting plates 17 and 20 or the variable vertical angle prisms 18 and 19, and rotating the reflecting plates 17 and 20. Alternatively, the apex angle of the variable apex angle prisms 18 and 19 is changed, or the apex angles of the variable apex angle prisms 18 and 19 are changed.
To correct the translational component by changing the refractive indices of the incident light and the outgoing light to the second optical axis changing unit 3 to correct the rotational component by displacing the whole or a part of the photographing optical system 6. I am trying.
【0133】したがって、手ぶれや被写体の移動等で発
生する画像の像ぶれの回転成分と並進成分を安価にかつ
より一層高精度に補正することができ、安価に画質をよ
り一層向上させることができる。
Therefore, the rotational component and translational component of the image blur of the image caused by camera shake or movement of the subject can be corrected inexpensively and with higher accuracy, and the image quality can be further improved at low cost. .
【0134】さらに、本実施の形態の撮像装置1は、第
一光軸変更部2を、反射板17、20または可変頂角プ
リズム18、19を備え、当該反射板17、20を回転
させ、または、当該可変頂角プリズム18、19の頂角
を変化させ、あるいは、当該可変頂角プリズム18、1
9への入射光と出射光の屈折率を変化させて並進成分を
補正するものとし、第二光軸変更部3を、撮像素子から
の撮像画像情報の一部を切り出して回転成分を補正する
ものとしている。
Further, the image pickup apparatus 1 of the present embodiment is provided with the first optical axis changing section 2 having the reflecting plates 17, 20 or the variable apex angle prisms 18, 19, and rotating the reflecting plates 17, 20. Alternatively, the apex angle of the variable apex angle prisms 18 and 19 is changed, or
It is assumed that the translational components are corrected by changing the refractive indexes of the incident light and the outgoing light to the beam 9, and the second optical axis changing unit 3 cuts out a part of the imaged image information from the image sensor to correct the rotational component. I am supposed to.
【0135】したがって、手ぶれや被写体の移動等で発
生する画像の像ぶれの回転成分と並進成分をより一層安
価にかつより一層高精度に補正することができ、より一
層安価に画質をより一層向上させることができる。
Therefore, the rotational component and translational component of the image blur of the image caused by camera shake or movement of the subject can be corrected more inexpensively and with higher accuracy, and the image quality can be further improved at lower cost. Can be made.
【0136】なお、上記説明においては、並進ぶれと回
転ぶれの双方を原理的に補正する場合について説明し
た。
In the above description, the case where both translational shake and rotational shake are corrected in principle has been described.
【0137】すなわち、並進量Bにより発生する並進ぶ
れ量と回転量θにより発生する回転ぶれ量の双方を相殺
するように補正している。
That is, the correction is made so as to cancel both the translational shake amount generated by the translational amount B and the rotational shake amount generated by the rotation amount θ.
【0138】ここでの総ぶれ量は、図28のように示す
ことができ、上述のように、回転によるぶれは、被写体
の距離Lにかかわらず一定であり、並進によるぶれは、
被写体の距離Lが遠いほど小さく、無限遠の被写体では
「0」になる。
The total blur amount here can be represented as shown in FIG. 28. As described above, the blur due to rotation is constant regardless of the distance L of the subject, and the blur due to translation is
The farther the distance L of the subject is, the smaller the distance L becomes, and "0" is given to the subject at infinity.
【0139】そして、上記説明では、この回転ぶれと並
進ぶれの各成分をそれぞれ補正する場合について説明し
た。すなわち、上述の補正では、無限遠から最至近距離
までの並進成分と回転成分を補正しており、その補正す
る並進成分(並進ぶれ成分)は、図28の斜線部分であ
る。
In the above description, the case of correcting each component of the rotational shake and the translational shake has been described. That is, in the above correction, the translational component and the rotational component from infinity to the closest distance are corrected, and the translational component (translational shake component) to be corrected is the shaded portion in FIG.
【0140】いま、仮に、撮影画角内に無限遠の被写体
がないとすると、図29に示すように、図27では並進
成分の並進ぶれとして補正していた一部を回転成分によ
る回線ぶれに置き換えることで、並進成分の補正量を少
なくすることができる。
Assuming that there is no subject at infinity within the shooting angle of view, as shown in FIG. 29, a portion corrected as translational shake of the translational component in FIG. By replacing, the amount of correction of the translational component can be reduced.
【0141】このことは、図30に示すように、背景a
と近景bがあった場合に、振動等によって相対的に、背
景a’と近景b’に変位したとすると、上述のようにし
て並進ぶれと回転ぶれの双方を原理的に補正するには、
Bの並進とθの回転を補正する必要がある。
This means that as shown in FIG. 30, the background a
If there is a close-up view b, and the background a ′ and the close-up view b ′ are relatively displaced by vibration or the like, in order to correct both translational shake and rotational shake in principle as described above,
It is necessary to correct the translation of B and the rotation of θ.
【0142】いま、背景aを回転成分補正だけで補正す
ると、近景b’は、近景b’’になるように補正すれば
よく、補正量B’となり、補正量Bよりも小さい値で、
並進ぶれを補正することができる。
Now, if the background a is corrected only by the rotation component correction, the foreground b ′ may be corrected so as to become the foreground b ″, which is the correction amount B ′, which is a value smaller than the correction amount B.
Translational shake can be corrected.
【0143】すなわち、背景の総ぶれ量dを回転補正量
により過剰補正し、近景を並進補正量により補正してい
る。
That is, the total blur amount d of the background is overcorrected by the rotation correction amount, and the near view is corrected by the translational correction amount.
【0144】一般的に、並進B、回転θの振動によるぶ
れが生じた場合、近景であるX1=1/L1、遠景(背
景)であるX2=1/L2の距離に位置する被写体に生
じるぶれ量は、次式で示すことができる。
Generally, when a shake occurs due to the vibration of translation B and rotation θ, the shake occurs in a subject located at a distance of X1 = 1 / L1 which is a near view and X2 = 1 / L2 which is a distant view (background). The amount can be expressed by the following equation.
【0145】d1=fBX1+f×tanθ;近景 d2=fBX2+f×tanθ;遠景 ここで、新たな補正量をB’、θ’として、図30に示
すように、次式を求める。
D1 = fBX1 + f × tan θ; near view d2 = fBX2 + f × tan θ; distant view Here, with the new correction amounts B ′ and θ ′, the following equation is obtained as shown in FIG.
【0146】 tanθ’=(B+L2×tanθ)/L2 tanθ’=B×X2+tanθ 上記式を、近景の総ぶれ量dの式d1に代入すると、次
式のようになる。
Tan θ ′ = (B + L2 × tan θ) / L2 tan θ ′ = B × X2 + tan θ Substituting the above equation into the equation d1 of the total blur amount d of the near view gives the following equation.
【0147】d1=fBX1+f×tanθ=fB’X
1+f×tanθ’ fBX1+f×tanθ=fB’X1+f×B×X2+
f×tanθ B’=B×(X1−X2)/X1 すなわち、撮像装置1に、図31に示すように、補正量
算出部50を設け、振動によりぶれが生じた場合、検出
された並進量Bと回転量θ及び被写体の距離情報を補正
量算出部50に入力して、並進量Bと回転量θ及び被写
体の距離情報に基づいて、新たな並進補正量B’と回転
補正量θ’を、以下式から算出する。
D1 = fBX1 + f × tan θ = fB′X
1 + f × tan θ ′ fBX1 + f × tan θ = fB′X1 + f × B × X2 +
f × tan θ B ′ = B × (X1−X2) / X1 That is, as shown in FIG. 31, the image pickup apparatus 1 is provided with the correction amount calculation unit 50, and when the shake occurs due to the vibration, the detected translation amount. B, the rotation amount θ, and the subject distance information are input to the correction amount calculation unit 50, and based on the translation amount B, the rotation amount θ, and the subject distance information, a new translation correction amount B ′ and a new rotation correction amount θ ′. Is calculated from the following formula.
【0148】 θ’=arctan(B×X2+tanθ) B’=B×(X1−X2)/X1 このようにすると、実際の並進量Bより少ない並進補正
量B’でぶれを補正することができる。
Θ ′ = arctan (B × X2 + tan θ) B ′ = B × (X1−X2) / X1 In this way, the shake can be corrected with the translation correction amount B ′ smaller than the actual translation amount B.
【0149】また、上記説明では、背景を回転により過
剰補正する場合について説明したが、図32に示すよう
に、前景を過剰補正してもよいし、背景と前景の中間の
距離の被写体を回転により過剰補正してもよい。
Further, in the above description, the case where the background is excessively corrected by rotation has been described. However, as shown in FIG. 32, the foreground may be excessively corrected, or a subject at a distance between the background and the foreground may be rotated. May be overcorrected.
【0150】このようにすると、少ない補正量で手ぶれ
や被写体の移動等で発生する画像の像ぶれの回転成分と
並進成分をより適切に補正することができ、安価に画質
をより一層向上させることができる。
By doing so, it is possible to more appropriately correct the rotational component and translational component of the image blur of the image caused by camera shake, movement of the subject, etc. with a small correction amount, and further improve the image quality at low cost. You can
【0151】図33〜図36は、本発明の撮像装置の第
2の実施の形態を示す図であり、本実施の形態は、ビデ
オカメラに適用したものである。
33 to 36 are views showing the second embodiment of the image pickup apparatus of the present invention, and this embodiment is applied to a video camera.
【0152】図33は、本発明の撮像装置の第2の実施
の形態を適用したビデオカメラ60の要部構成図であ
り、ビデオカメラ60は、第一光軸変更部(第一光軸変
更手段)61、第二光軸変更部(第二光軸変更手段)6
2、撮影光学系63、CCD個体撮像素子64、CDS
・AGC・A/D回路部65、画像処理回路66、TG
67、ぶれ検出部68、CPU(Central Processing U
nit )69、表示部70及び録画部71等を備えてい
る。
FIG. 33 is a block diagram showing the main part of a video camera 60 to which the second embodiment of the image pickup apparatus of the present invention is applied. The video camera 60 includes a first optical axis changing part (first optical axis changing part). Means) 61, second optical axis changing section (second optical axis changing means) 6
2. Photographing optical system 63, CCD individual image pickup device 64, CDS
-AGC / A / D circuit unit 65, image processing circuit 66, TG
67, shake detection unit 68, CPU (Central Processing U
nit) 69, a display unit 70, a recording unit 71 and the like.
【0153】第一光軸変更部61及び第二光軸変更部6
2は、例えば、一対のカバーガラスと蛇腹で封止された
封止室内に光学液体が封入され、カバーガラスの角度を
変化させることで、頂角を変化させる可変頂角プリズム
が使用されている。第一光軸変更部61及び第二光軸変
更部62は、図34に矢印で示すように、それぞれ可変
頂角プリズムの入光側(前側)のカバーガラスが左右に
回転できるように、また、出光側(後側)のカバーガラ
スが上下に回転できるようになっており、図35
(a)、(b)に示すように、それぞれ上下左右の補正
を行う。
The first optical axis changing section 61 and the second optical axis changing section 6
2 is, for example, a variable apex angle prism that changes an apex angle by changing an angle of the cover glass by enclosing an optical liquid in a sealed chamber that is sealed by a pair of cover glasses and a bellows. . The first optical axis changing section 61 and the second optical axis changing section 62 are respectively arranged so that the cover glass on the light-incident side (front side) of the variable apex angle prism can rotate to the left and right, as shown by the arrows in FIG. , The cover glass on the light output side (rear side) can be rotated up and down.
As shown in (a) and (b), the vertical and horizontal corrections are performed.
【0154】ぶれ検出部(検出手段)68は、X軸、Y
軸及びZ軸の3軸にそれぞれ2個の加速度センサが対と
して配置されたX軸加速度センサ対、Y軸加速度センサ
対及びZ軸加速度センサ対で構成されており、各X軸加
速度センサ対、Y軸加速度センサ対及びZ軸加速度セン
サ対が、図36に示すように、ビデオカメラ60の手ぶ
れ等による回転成分と並進成分を検出して、CPU69
に出力する。
The shake detection section (detection means) 68 has an X-axis and a Y-axis.
Each of the X-axis acceleration sensor pairs is composed of an X-axis acceleration sensor pair, two Y-axis acceleration sensor pairs, and two Y-axis acceleration sensor pairs arranged on each of the three axes of the Z-axis and the Z-axis. As shown in FIG. 36, the Y-axis acceleration sensor pair and the Z-axis acceleration sensor pair detect a rotation component and a translation component due to camera shake of the video camera 60, and the CPU 69
Output to.
【0155】ビデオカメラ60は、被写体との距離を図
示しない測距手段で測定する。また、被写体との距離
は、CPU69が、撮影光学系63をフォーカス手段を
用いてデフォーカスして画像のピントを検出して算出し
てもよい。
The video camera 60 measures the distance to the subject by a distance measuring means (not shown). Further, the distance to the subject may be calculated by the CPU 69 by defocusing the photographing optical system 63 using a focusing means to detect the focus of the image.
【0156】そして、ビデオカメラ60は、被写体から
の光が第一光軸変更部61及び第二光軸変更部62を通
過して撮影レンズ等の撮影光学系63を通り、CCD固
体撮像素子64上に結像される。CCD個体撮像素子6
4は、TG(タイミングジェネレータ)67のパルスに
より駆動されて、結像画像の画像信号をCDS・AGC
・A/D回路部65に出力し、CDS・AGC・A/D
回路部65は、CCD個体撮像素子64から入力される
画像信号のリセットノイズを、そのCDS(相関サンプ
リング回路)で低減し、AGC(自動ゲインコントロー
ラ)により信号ゲインをコントロールして、A/D(ア
ナログ/デジタル変換器)でデジタル変換して画像情報
に変換し、画像処理回路66に出力する。画像処理回路
66は、CDS・AGC・A/D回路部65から入力さ
れる画像情報に色補間、アパーチャ処理、ガンマ処理等
の画像処理を施してビデオ信号を作成し、ビデオレコー
ダ等の録画部71で録画させ、また、モニター画像とし
てLCD等を使用した表示部62でビデオ信号を表示さ
せる。
Then, in the video camera 60, the light from the subject passes through the first optical axis changing unit 61 and the second optical axis changing unit 62, the photographing optical system 63 such as a photographing lens, and the CCD solid state image pickup device 64. Imaged above. CCD solid-state image sensor 6
4 is driven by the pulse of the TG (timing generator) 67, and outputs the image signal of the formed image to the CDS / AGC.
・ Output to A / D circuit section 65, and CDS / AGC / A / D
The circuit unit 65 reduces the reset noise of the image signal input from the CCD solid-state image pickup device 64 by the CDS (correlation sampling circuit), controls the signal gain by the AGC (automatic gain controller), and A / D ( It is converted into image information by an analog / digital converter) and output to the image processing circuit 66. The image processing circuit 66 subjects the image information input from the CDS / AGC / A / D circuit unit 65 to image processing such as color interpolation, aperture processing, and gamma processing to create a video signal, and a video recording unit such as a video recorder. The image is recorded at 71, and the video signal is displayed on the display unit 62 using an LCD or the like as a monitor image.
【0157】そして、ビデオカメラ60は、それぞれ2
個の加速度センサが対として配置されているX軸加速度
センサ対、Y軸加速度センサ対及びZ軸加速度センサ対
からなるぶれ検出部68で3軸方向の回転成分と並進成
分のぶれを検出してCPU69に入力する。
Then, each of the video cameras 60 has two
A shake detecting unit 68 including a pair of X-axis acceleration sensors, a pair of Y-axis acceleration sensors, and a pair of Z-axis acceleration sensors in which a plurality of acceleration sensors are arranged as a pair detects a shake of a rotational component and a translational component in the three-axis directions. Input to the CPU 69.
【0158】CPU(補正量算出手段)69は、ぶれ検
出部68から入力される加速度から上下左右の並進ぶれ
量と回転ぶれ量を算出し、算出した上下左右の並進量か
らそれを相殺するように、第1光軸変更制御信号を第一
光軸変更部61に、第2光軸変更制御信号を第二光軸変
更部62を出力して、第一光軸変更部61の可変頂角プ
リズムを駆動させ、また、第二光軸変更部62の可変頂
角プリズムを駆動させて、手ぶれ等による像変位を補正
し、補正後の被写体像を撮影光学系63を通してCCD
固体撮像素子64上に結像させる。
The CPU (correction amount calculation means) 69 calculates the vertical and horizontal translational blurring amount and the rotational blurring amount from the acceleration input from the blurring detection unit 68, and cancels them from the calculated vertical and horizontal translational amounts. The first optical axis changing control signal is output to the first optical axis changing unit 61, and the second optical axis changing control signal is output to the second optical axis changing unit 62. The prism is driven, and the variable apex angle prism of the second optical axis changing unit 62 is driven to correct the image displacement due to camera shake or the like, and the corrected subject image is passed through the photographing optical system 63 to the CCD.
An image is formed on the solid-state image sensor 64.
【0159】なお、本実施の形態のビデオカメラ60で
は、ぶれ検出部68として加速度センサ対を用いて振動
を検出しているが、画像処理回路66に、時系列的に得
られる複数の画像情報より画像の動きを部分的に検出す
る動き検出回路を内蔵し、被写体毎によるぶれ等による
動きを検出して、この動き量から並進量及び回転量を検
出してもよい。
In the video camera 60 according to the present embodiment, vibration is detected by using the acceleration sensor pair as the blur detection unit 68, but the image processing circuit 66 uses the plurality of image information obtained in time series. It is also possible to incorporate a motion detection circuit that partially detects the motion of the image, detect motion due to blurring or the like for each subject, and detect translation amount and rotation amount from this motion amount.
【0160】また、本実施の形態のビデオカメラ60
は、上述のように、画像情報から像変位量を算出して、
並進量及び回転量を検出してもよい。この場合は、CP
U69によるフォーカス動作により撮影画角内の被写体
の距離を検出する。
Also, the video camera 60 of the present embodiment
Is calculated from the image information as described above,
The amount of translation and the amount of rotation may be detected. In this case, CP
The focus operation by U69 detects the distance of the subject within the shooting angle of view.
【0161】さらに、本実施の形態では、ビデオカメラ
60に適用した場合について説明したが、撮像装置とし
ては、ビデオカメラ60に限るものではなく、例えば、
デジタルスチルカメラ、銀塩カメラ等にも同様に適用す
ることができる。
Further, although the case where the present invention is applied to the video camera 60 has been described in the present embodiment, the image pickup apparatus is not limited to the video camera 60.
It can be similarly applied to a digital still camera, a silver halide camera, and the like.
【0162】また、上記説明では、撮像装置であるビデ
オカメラ60の振動による並進ぶれと回転ぶれを検出し
て補正しているが、撮影装置の振動だけでなく、被写体
の移動に伴うぶれについても補正することができる。
Further, in the above description, the translational blurring and the rotational blurring due to the vibration of the video camera 60 as the image pickup apparatus are detected and corrected, but not only the vibration of the photographing apparatus but also the blurring due to the movement of the object Can be corrected.
【0163】すなわち、ぶれ検出部68として、像変位
検出方式のものを用いると、像変位検出では、撮影装置
と被写体の相対変位を検出することができるため、この
検出した撮影装置と被写体の相対変位に基づいて、被写
体の移動に伴うぶれについても補正することができる。
That is, when the image displacement detection system is used as the blur detection unit 68, the relative displacement between the photographing device and the subject can be detected in the image displacement detection. Based on the displacement, it is possible to correct the blurring caused by the movement of the subject.
【0164】以上、本発明者によってなされた発明を好
適な実施の形態に基づき具体的に説明したが、本発明は
上記のものに限定されるものではなく、その要旨を逸脱
しない範囲で種々変更可能であることはいうまでもな
い。
Although the invention made by the present inventor has been specifically described based on the preferred embodiments, the present invention is not limited to the above, and various modifications can be made without departing from the scope of the invention. It goes without saying that it is possible.
【0165】[0165]
【発明の効果】請求項1記載の発明の撮像装置によれ
ば、撮影対象の被写体からの光を撮影光学系を通して撮
像手段に入射して、被写体の画像を撮像するに際して、
撮像装置の振動または被写体の移動等に伴う画像の像ぶ
れの回転成分と並進成分を補正する第一光軸変更手段と
第二光軸変更手段を設けているので、手ぶれや被写体の
移動等で発生する画像の像ぶれの回転成分と並進成分を
補正することができ、画質を向上させることができる。
According to the image pickup apparatus of the present invention, when the light from the subject to be photographed is incident on the image pickup means through the photographing optical system and the image of the subject is picked up,
Since the first optical axis changing means and the second optical axis changing means for correcting the rotational component and the translational component of the image blur of the image due to the vibration of the image pickup device or the movement of the subject are provided, it is possible to prevent camera shake or movement of the subject. It is possible to correct the rotational component and translational component of the image blur of the generated image, and it is possible to improve the image quality.
【0166】請求項2記載の発明の撮像装置によれば、
画像の像ぶれの並進成分を第一光軸変更手段と第二光軸
変更手段で補正し、像ぶれの回転成分を回転成分補正手
段で補正するので、像ぶれの並進成分を適切に補正する
とともに、回転成分を従来技術を利用して補正すること
ができ、安価に画質を向上させることができる。
According to the image pickup apparatus of the invention described in claim 2,
Since the translational component of the image blur of the image is corrected by the first optical axis changing means and the second optical axis changing means, and the rotational component of the image blur is corrected by the rotational component correcting means, the translational component of the image blur is appropriately corrected. At the same time, the rotation component can be corrected by using the conventional technique, and the image quality can be improved at low cost.
【0167】請求項3記載の発明の撮像装置によれば、
撮像装置の振動または被写体の移動等に伴う画像の像ぶ
れの回転成分と並進成分を検出手段で検出し、被写体と
の距離である被写体距離を測距手段で測定し、検出手段
の検出する回転成分と並進成分及び測距手段の測定する
被写体距離に基づいて並進補正量と回転補正量を補正量
算出手段で算出して、当該補正量算出手段の算出した並
進補正量と回転補正量に基づいて第一光軸変更手段と第
二光軸変更手段または回転成分補正手段で回転成分と並
進成分を補正するので、少ない補正量で手ぶれや被写体
の移動等で発生する画像の像ぶれの回転成分と並進成分
をより適切に補正することができ、安価に画質をより一
層向上させることができる。
According to the image pickup apparatus of the invention described in claim 3,
The rotation component and the translation component of the image blurring of the image caused by the vibration of the image pickup device or the movement of the subject are detected by the detection means, the subject distance which is the distance to the subject is measured by the distance measurement means, and the rotation detected by the detection means The translation correction amount and the rotation correction amount are calculated by the correction amount calculation means based on the component and the translation component and the subject distance measured by the distance measuring means, and based on the translation correction amount and the rotation correction amount calculated by the correction amount calculation means. Since the rotation component and the translation component are corrected by the first optical axis changing means and the second optical axis changing means or the rotation component correcting means, the rotation component of the image blur of the image generated by the camera shake or the movement of the subject with a small correction amount. And the translation component can be corrected more appropriately, and the image quality can be further improved at low cost.
【0168】請求項4記載の発明の撮像装置によれば、
撮像装置の振動または被写体の移動等に伴う当該撮像装
置と当該被写体との相対変位に基づいて回転成分と並進
成分を相対変位検出手段で検出し、当該相対変位検出手
段の検出した回転成分と並進成分に基づいて第一光軸変
更手段と第二光軸変更手段または回転成分補正手段で回
転成分と並進成分を補正するので、少ない補正量で手ぶ
れや被写体の移動等で発生する画像の像ぶれの回転成分
と並進成分をより適切に補正することができ、安価によ
り一層画質を向上させることができる。
According to the image pickup apparatus of the invention described in claim 4,
The relative displacement detection means detects a rotational component and a translational component based on the relative displacement between the imaging device and the subject due to the vibration of the imaging device or the movement of the subject, and the translational component and the translation detected by the relative displacement detection means. Since the rotation component and the translation component are corrected by the first optical axis changing means and the second optical axis changing means or the rotation component correcting means on the basis of the components, the image blurring of the image caused by camera shake or movement of the subject with a small correction amount. It is possible to more appropriately correct the rotational component and the translational component, and it is possible to further improve the image quality at a low cost.
【0169】請求項5記載の発明の撮像装置によれば、
像変位検出手段で、被写体の画像の像変位を検出して回
転成分と並進成分を算出し、当該像変位検出手段の算出
した回転成分と並進成分に基づいて第一光軸変更手段と
第二光軸変更手段または回転成分補正手段で回転成分と
並進成分を補正するので、手ぶれや被写体の移動等で発
生する画像の像ぶれの回転成分と並進成分をより適切に
かつ安価に補正することができ、安価により一層画質を
向上させることができる。
According to the image pickup apparatus of the invention described in claim 5,
The image displacement detecting means detects the image displacement of the image of the subject to calculate the rotation component and the translation component, and based on the rotation component and the translation component calculated by the image displacement detecting means, the first optical axis changing means and the second optical axis changing means. Since the rotation component and the translational component are corrected by the optical axis changing unit or the rotation component correcting unit, the rotation component and the translational component of the image blur of the image caused by the camera shake, the movement of the subject, or the like can be more appropriately and inexpensively corrected. Therefore, the image quality can be further improved at low cost.
【0170】請求項6記載の発明の撮像装置によれば、
第一光軸変更手段及び第二光軸変更手段を、反射板を有
し、当該反射板を回転させて被写体からの光の光軸を変
更させて回転成分と並進成分または並進成分を補正する
ものとしているので、手ぶれや被写体の移動等で発生す
る画像の像ぶれの回転成分と並進成分をより一層安価に
補正することができ、より一層安価に画質を向上させる
ことができる。
According to the image pickup apparatus of the invention described in claim 6,
The first optical axis changing means and the second optical axis changing means have a reflecting plate, and the reflecting plate is rotated to change the optical axis of the light from the subject to correct the rotation component and the translational component or the translational component. Therefore, the rotational component and translational component of the image blur of the image caused by camera shake, movement of the subject, or the like can be corrected at a lower cost, and the image quality can be improved at a lower cost.
【0171】請求項7記載の発明の撮像装置によれば、
第一光軸変更手段及び第二光軸変更手段を、可変頂角プ
リズムを有し、当該可変頂角プリズムの頂角を変化させ
て、または、当該可変頂角プリズムへの入射光と出射光
の屈折率を変化させて被写体からの光の光軸を変更させ
て回転成分と並進成分または並進成分を補正するものと
しているので、手ぶれや被写体の移動等で発生する画像
の像ぶれの回転成分と並進成分をより一層高精度に補正
することができ、画質をより一層向上させることができ
る。
According to the image pickup device of the invention described in claim 7,
The first optical axis changing means and the second optical axis changing means have a variable apex angle prism, the apex angle of the variable apex angle prism is changed, or the incident light and the emitted light to the variable apex angle prism are changed. The rotation component and the translation component or the translation component is corrected by changing the optical axis of the light from the subject by changing the refractive index of the subject, so the rotation component of the image blur of the image that occurs due to camera shake or movement of the subject. The translational component can be corrected with higher accuracy, and the image quality can be further improved.
【0172】請求項8記載の発明の撮像装置によれば、
第一光軸変更手段及び第二光軸変更手段を、反射板と可
変頂角プリズムを備え、当該反射板を回転させるととも
に、当該可変頂角プリズムの頂角を変化させて、また
は、当該可変頂角プリズムへの入射光と出射光の屈折率
を変化させて回転成分と並進成分または並進成分を補正
するものとしているので、手ぶれや被写体の移動等で発
生する画像の像ぶれの回転成分と並進成分を安価にかつ
より一層高精度に補正することができ、安価に画質をよ
り一層向上させることができる。
According to the image pickup apparatus of the invention described in claim 8,
The first optical axis changing means and the second optical axis changing means are provided with a reflection plate and a variable apex angle prism, and while rotating the reflection plate, the apex angle of the variable apex angle prism is changed, or Since the rotation component and the translational component or the translational component are corrected by changing the refractive index of the incident light and the emitted light to the apex angle prism, the rotation component of the image blur of the image caused by camera shake or movement of the subject The translational component can be corrected at low cost and with higher accuracy, and the image quality can be further improved at low cost.
【0173】請求項9記載の発明の撮像装置によれば、
第一光軸変更手段を、反射板または可変頂角プリズムを
備え、当該反射板を回転させ、または、当該可変頂角プ
リズムの頂角を変化させ、あるいは、当該可変頂角プリ
ズムへの入射光と出射光の屈折率を変化させて並進成分
を補正するものとし、第二光軸変更手段を、撮像手段を
変位させて回転成分を補正するものとしているので、手
ぶれや被写体の移動等で発生する画像の像ぶれの回転成
分と並進成分を安価にかつより一層高精度に補正するこ
とができ、安価に画質をより一層向上させることができ
る。
According to the image pickup device of the invention described in claim 9,
The first optical axis changing means is provided with a reflecting plate or a variable apex angle prism, the reflecting plate is rotated, or the apex angle of the aforesaid variable apex angle prism is changed, or the incident light to the aforesaid variable apex angle prism. Since the translational component is corrected by changing the refractive index of the emitted light and the rotation component is corrected by displacing the image pickup device, the second optical axis changing means is caused by camera shake or movement of the subject. The rotational component and translational component of the image blur of the image can be corrected at low cost with higher accuracy, and the image quality can be further improved at low cost.
【0174】請求項10記載の発明の撮像装置によれ
ば、第一光軸変更手段を、反射板または可変頂角プリズ
ムを備え、当該反射板を回転させ、または、当該可変頂
角プリズムの頂角を変化させ、あるいは、当該可変頂角
プリズムへの入射光と出射光の屈折率を変化させて並進
成分を補正するものとし、第二光軸変更手段を、撮影光
学系の全体または一部を変位させて回転成分を補正する
ものとしているので、手ぶれや被写体の移動等で発生す
る画像の像ぶれの回転成分と並進成分を安価にかつより
一層高精度に補正することができ、安価に画質をより一
層向上させることができる。
According to the image pickup apparatus of the tenth aspect of the present invention, the first optical axis changing means is provided with a reflecting plate or a variable apex angle prism, and the reflecting plate is rotated, or the apex of the variable apex angle prism. The translational component is corrected by changing the angle or changing the refractive index of the incident light and the outgoing light to the variable apex angle prism, and the second optical axis changing means is used as the whole or a part of the photographing optical system. Since the rotation component is corrected by displacing, the rotation component and translation component of the image blur of the image caused by camera shake, movement of the subject, etc. can be corrected at low cost and with higher accuracy, and at low cost. The image quality can be further improved.
【0175】請求項11記載の発明の撮像装置によれ
ば、第一光軸変更手段を、反射板または可変頂角プリズ
ムを備え、当該反射板を回転させ、または、当該可変頂
角プリズムの頂角を変化させ、あるいは、当該可変頂角
プリズムへの入射光と出射光の屈折率を変化させて並進
成分を補正するものとし、第二光軸変更手段を、撮像手
段からの撮像画像情報の一部を切り出して回転成分を補
正するものとしているので、手ぶれや被写体の移動等で
発生する画像の像ぶれの回転成分と並進成分をより一層
安価にかつより一層高精度に補正することができ、より
一層安価に画質をより一層向上させることができる。
According to the image pickup apparatus of the eleventh aspect, the first optical axis changing means is provided with a reflecting plate or a variable apex angle prism, and the reflecting plate is rotated, or the apex of the variable apex angle prism. The translational component is corrected by changing the angle or changing the refractive index of the incident light and the outgoing light to the variable apex angle prism, and the second optical axis changing means is used for changing the image information of the image picked up from the image pickup means. Since the rotation component is corrected by cutting out a part, it is possible to correct the rotation component and translation component of the image blur of the image caused by camera shake, movement of the subject, etc. more inexpensively and with higher accuracy. The image quality can be further improved at a lower cost.
【図面の簡単な説明】[Brief description of drawings]
【図1】本発明の撮像装置の第1の実施の形態を適用し
た撮像装置の光軸変更部のブロック構成図。
FIG. 1 is a block configuration diagram of an optical axis changing unit of an image pickup apparatus to which an image pickup apparatus according to a first embodiment of the present invention is applied.
【図2】図1の撮像装置のぶれ検出・算出部のブロック
構成図。
FIG. 2 is a block configuration diagram of a blur detection / calculation unit of the image pickup apparatus in FIG.
【図3】図1の撮像装置の他のぶれ検出・算出部のブロ
ック構成図。
FIG. 3 is a block configuration diagram of another blur detection / calculation unit of the image pickup apparatus in FIG.
【図4】図1の第一光軸部と第二光軸変更部によるぶれ
補正の説明図。
FIG. 4 is an explanatory diagram of blur correction by the first optical axis unit and the second optical axis changing unit of FIG. 1.
【図5】図1の第一光軸変更部及び第二光軸変更部によ
る並進による像ぶれのみの補正の説明図。
5 is an explanatory diagram of correction of only image blur due to translation by the first optical axis changing unit and the second optical axis changing unit in FIG.
【図6】図1の第一光軸変更部及び第二光軸変更部によ
る回転による像ぶれのみの補正の説明図。
FIG. 6 is an explanatory diagram of correction of only image blur due to rotation by the first optical axis changing unit and the second optical axis changing unit of FIG. 1.
【図7】図1の第一光軸変更部及び第二光軸変更部とし
ての2枚の反射板を回転させて光軸変更を行っている状
態の説明図。
FIG. 7 is an explanatory diagram showing a state in which two reflecting plates serving as a first optical axis changing unit and a second optical axis changing unit in FIG. 1 are rotated to change an optical axis.
【図8】図7の2枚の反射板を平行を保って回転させる
具体的な機構の一例を示す図。
FIG. 8 is a view showing an example of a specific mechanism for rotating the two reflection plates of FIG. 7 while keeping them parallel to each other.
【図9】図1の第一光軸変更部としての平面反射板を回
転させ第二光軸変更部としての可変頂角プリズムの角度
を変化させて光軸変更を行っている状態の説明図。
9 is an explanatory diagram of a state in which a plane reflecting plate as a first optical axis changing unit in FIG. 1 is rotated and an angle of a variable apex angle prism as a second optical axis changing unit is changed to change an optical axis. .
【図10】図1の第一光軸変更部としての可変頂角プリ
ズムの角度を変化させ第二光軸変更部としての平面反射
板を回転させて光軸変更を行っている状態の説明図。
10 is an explanatory diagram of a state in which the angle of the variable apex angle prism as the first optical axis changing unit in FIG. 1 is changed and the flat reflecting plate as the second optical axis changing unit is rotated to change the optical axis. .
【図11】図1の第一光軸変更部及び第二光軸変更部と
しての2個の可変頂角プリズムの角度を変化させて光軸
変更を行っている状態の説明図。
11 is an explanatory diagram of a state in which the optical axes are changed by changing the angles of two variable apex angle prisms as the first optical axis changing unit and the second optical axis changing unit in FIG.
【図12】回転ぶれ補正手段としての可変頂角プリズム
の構成図。
FIG. 12 is a configuration diagram of a variable apex angle prism as a rotation blur correction unit.
【図13】2枚の反射板を並進ぶれ補正として用い撮像
素子の変位を回転ぶれ補正として用いる場合の構成図。
FIG. 13 is a configuration diagram when two reflectors are used as translational shake correction and displacement of an image sensor is used as rotational shake correction.
【図14】撮像素子から得られる全体画像から一部を切
り出して行う回転ぶれ補正の説明図。
FIG. 14 is an explanatory diagram of rotation blur correction performed by cutting out a part from the entire image obtained from the image sensor.
【図15】図1の第一光軸変更部のみを撮影光学系の手
前に配設し撮影光学系と撮像素子全体を回転させて第二
光軸変更部として機能させる場合の説明図。
15 is an explanatory diagram when only the first optical axis changing unit in FIG. 1 is arranged in front of the photographing optical system and the photographing optical system and the entire image sensor are rotated to function as a second optical axis changing unit.
【図16】図1の第一光軸変更部のみを撮影光学系の手
前に配設し撮像素子を回転させて第二光軸変更部として
機能させる場合の説明図。
16 is an explanatory diagram of a case where only the first optical axis changing unit in FIG. 1 is arranged in front of the photographing optical system and the image pickup element is rotated to function as a second optical axis changing unit.
【図17】図1の第一光軸変更部のみを撮影光学系の手
前に配設し撮像素子を撮影光学系に対して相対的に変位
させて第二光軸変更部として機能させる場合の説明図。
FIG. 17 shows a case in which only the first optical axis changing unit in FIG. 1 is arranged in front of the photographing optical system and the image pickup element is relatively displaced with respect to the photographing optical system to function as the second optical axis changing unit. Explanatory drawing.
【図18】撮像装置と被写体との距離(L)の逆数と総
ぶれ量(d)との関係を示す図。
FIG. 18 is a diagram showing the relationship between the reciprocal of the distance (L) between the imaging device and the subject and the total blur amount (d).
【図19】画角中心から離れたθ0の位置にある画像の
回転ぶれdθを示す図。
FIG. 19 is a diagram showing rotation blur dθ of an image at a position of θ0 away from the center of the angle of view.
【図20】撮像装置の手ぶれ等による振動で発生する像
変位を示す図。
FIG. 20 is a diagram showing image displacement generated by vibration of the image pickup apparatus due to camera shake or the like.
【図21】図20の撮像装置の振動で発生する回転移動
による像変位の説明図。
21 is an explanatory diagram of image displacement due to rotational movement generated by vibration of the image pickup apparatus in FIG.
【図22】図20の撮像装置の振動で発生する並進移動
による像変位の説明図。
22 is an explanatory diagram of image displacement due to translational movement generated by vibration of the image pickup apparatus in FIG.
【図23】撮像装置で撮影する近景と遠景を含む画像の
一例を示す図。
FIG. 23 is a diagram showing an example of an image including a near view and a distant view captured by an imaging device.
【図24】図23の画像に回転移動による像変位が発生
した場合の画像の一例を示す図。
FIG. 24 is a diagram showing an example of an image when image displacement due to rotational movement occurs in the image of FIG. 23;
【図25】図23の画像に並進移動による像変位が発生
した場合の画像の一例を示す図。
FIG. 25 is a diagram showing an example of an image when image displacement due to translational movement occurs in the image of FIG. 23.
【図26】図25の並進移動による像変位が発生した画
像に近景の像変位をなくすように回転ぶれ補正を行って
遠景が小さくなった場合の画像の一例を示す図。
FIG. 26 is a diagram showing an example of an image when the distant view is reduced by performing rotational blur correction on the image in which the image displacement due to the translational movement in FIG. 25 has occurred so as to eliminate the image displacement in the near view.
【図27】従来の並進ぶれ補正の一例の説明図。FIG. 27 is an explanatory diagram of an example of conventional translational blurring correction.
【図28】撮像装置のぶれによる並進量により発生する
並進ぶれ量と回転量により発生する回転ぶれ量の総ぶれ
量を示す図。
FIG. 28 is a diagram illustrating a total blur amount of a translational blur amount generated by a translation amount due to a blur of an imaging device and a rotational blur amount generated by a rotation amount.
【図29】図28の並進成分の並進ぶれとして補正して
いた一部を回転成分による回線ぶれに置き換えて並進成
分の補正量を少なく場合の総ぶれ量を示す図。
FIG. 29 is a diagram showing a total blur amount in a case where a part of the translation component of FIG. 28, which has been corrected as a translational blur, is replaced with a line blur due to a rotational component to reduce the translation component correction amount.
【図30】背景と近景が振動で相対移動した際に背景を
回転成分補正だけで補正した場合に補正量よりも小さく
なる状態の説明図。
FIG. 30 is an explanatory diagram of a state in which the amount of correction is smaller than the correction amount when the background is corrected only by the rotation component correction when the background and the foreground are relatively moved by vibration.
【図31】図30の補正を行う補正量算出部のブロック
図。
31 is a block diagram of a correction amount calculation unit that performs the correction of FIG.
【図32】図30の前景を過剰補正した場合の総ぶれ量
を示す図。
32 is a diagram showing a total blur amount when the foreground of FIG. 30 is overcorrected.
【図33】本発明の撮像装置の第2の実施の形態を適用
したビデオカメラの概略構成図。
FIG. 33 is a schematic configuration diagram of a video camera to which the second embodiment of the image pickup apparatus of the present invention is applied.
【図34】図33の第一光軸変更部及び第二光軸変更部
の動作説明図。
34 is an operation explanatory diagram of the first optical axis changing unit and the second optical axis changing unit in FIG. 33.
【図35】図33の第一光軸変更部及び第二光軸変更部
のカバーガラスの上下左右の回転で光軸補正する動作説
明図。
35 is an explanatory diagram of an operation of correcting the optical axis by rotating the cover glass of the first optical axis changing unit and the second optical axis changing unit of FIG. 33 vertically and horizontally.
【図36】図33のぶれ検出部のX軸加速度センサ対、
Y軸加速度センサ対及びZ軸加速度センサ対によるビデ
オカメラのぶれによる回転成分と並進成分の検出の説明
図。
FIG. 36 is a pair of X-axis acceleration sensors of the blur detection unit of FIG. 33,
FIG. 6 is an explanatory diagram of detection of a rotation component and a translation component due to a shake of a video camera by a Y-axis acceleration sensor pair and a Z-axis acceleration sensor pair.
【符号の説明】[Explanation of symbols]
1 撮像装置 1a 主点 2 第一光軸変更部 3 第二光軸変更部 4、5 ぶれ検出・算出部 6 撮影光学系 7 撮影レンズ 8 結像面 11 第一反射板 12 第二反射板 13 クランク 14 ラック 15 ビニオンギヤ 16 スプリング 17 平面反射板 18、19 可変頂角プリズム 20 平面反射板 21、22、23 可変頂角プリズム 24 カバーガラス 25 蛇腹 26 光学液体 27、28 反射板 29 並進ぶれ補正部 30 撮像素子 31、32 加速度検出部 33 ぶれ量算出部 41 画像比較部 42 ぶれ量算出部 43 測距部 50 補正量算出部 60 ビデオカメラ 61 第一光軸変更部 62 第二光軸変更部 63 撮影光学系 64 CCD個体撮像素子 65 CDS・AGC・A/D回路部 66 画像処理回路 67 TG 68 ぶれ検出部 69 CPU 70 表示部 71 録画部 1 Imaging device 1a Main point 2 First optical axis changing section 3 Second optical axis changing section 4, 5 Shake detection / calculation unit 6 Shooting optical system 7 Shooting lens 8 Image plane 11 First reflector 12 Second reflector 13 cranks 14 racks 15 pinion gear 16 springs 17 Flat reflector 18, 19 Variable apex angle prism 20 flat reflector 21, 22, 23 Variable apex angle prism 24 cover glass 25 bellows 26 Optical Liquid 27, 28 Reflector 29 Translation blur correction unit 30 image sensor 31, 32 Acceleration detector 33 Blurring amount calculation unit 41 Image comparison section 42 Blurring amount calculation unit 43 Distance measuring unit 50 Correction amount calculation unit 60 video camera 61 First optical axis changing unit 62 Second optical axis changing section 63 Photographic optical system 64 CCD solid-state image sensor 65 CDS / AGC / A / D circuit 66 Image processing circuit 67 TG 68 Shake detection section 69 CPU 70 Display 71 recording section

Claims (11)

    【特許請求の範囲】[Claims]
  1. 【請求項1】撮影対象の被写体からの光を撮影光学系を
    通して撮像手段に入射して、前記被写体の画像を撮像す
    る撮像装置において、前記撮像装置の振動または前記被
    写体の移動等に伴う前記画像の像ぶれの回転成分と並進
    成分を補正する第一光軸変更手段と第二光軸変更手段を
    備えていることを特徴とする撮像装置。
    1. An image pickup device for picking up an image of the subject by inputting light from a subject to be shot through an image pickup optical system to the image pickup device, the image being accompanied by vibration of the image pickup device or movement of the subject. An image pickup apparatus comprising: a first optical axis changing means and a second optical axis changing means for correcting a rotational component and a translational component of the image blur of FIG.
  2. 【請求項2】前記撮像装置は、前記画像の像ぶれの並進
    成分を前記第一光軸変更手段と第二光軸変更手段で補正
    し、前記像ぶれの回転成分を回転成分補正手段で補正す
    ることを特徴とする請求項1記載の撮像装置。
    2. The image pickup device corrects a translational component of an image blur of the image by the first optical axis changing means and a second optical axis changing means, and a rotational component of the image blur by a rotational component correcting means. The image pickup apparatus according to claim 1, wherein
  3. 【請求項3】前記撮像装置は、前記撮像装置の振動また
    は前記被写体の移動等に伴う前記画像の像ぶれの回転成
    分と並進成分を検出する検出手段と、前記被写体との距
    離である被写体距離を測定する測距手段と、前記検出手
    段の検出する回転成分と並進成分及び前記測距手段の測
    定する被写体距離に基づいて並進補正量と回転補正量を
    算出する補正量算出手段と、を備え、当該補正量算出手
    段の算出した並進補正量と回転補正量に基づいて前記第
    一光軸変更手段と前記第二光軸変更手段または前記回転
    成分補正手段で前記回転成分と前記並進成分を補正する
    ことを特徴とする請求項1または請求項2記載の撮像装
    置。
    3. An image pickup device, a detection means for detecting a rotation component and a translational component of an image blur of the image caused by vibration of the image pickup device or movement of the subject, and a subject distance which is a distance from the subject. And a correction amount calculation unit that calculates a translation correction amount and a rotation correction amount based on the rotation component and translation component detected by the detection unit and the subject distance measured by the distance measurement unit. Correcting the rotation component and the translation component by the first optical axis changing unit and the second optical axis changing unit or the rotation component correcting unit based on the translation correction amount and the rotation correction amount calculated by the correction amount calculating unit. The image pickup apparatus according to claim 1 or 2, wherein
  4. 【請求項4】前記撮像装置は、前記撮像装置の振動また
    は前記被写体の移動等に伴う当該撮像装置と当該被写体
    との相対変位に基づいて前記回転成分と前記並進成分を
    検出する相対変位検出手段を備え、当該相対変位検出手
    段の検出した前記回転成分と前記並進成分に基づいて前
    記第一光軸変更手段と前記第二光軸変更手段または前記
    回転成分補正手段で前記回転成分と前記並進成分を補正
    することを特徴とする請求項1から請求項3記載の撮像
    装置。
    4. The relative displacement detection means for detecting the rotational component and the translational component based on the relative displacement between the imaging device and the subject due to vibration of the imaging device or movement of the subject. And the first optical axis changing means and the second optical axis changing means or the rotation component correcting means based on the rotational component and the translational component detected by the relative displacement detecting means. The image pickup apparatus according to claim 1, wherein the image pickup apparatus corrects
  5. 【請求項5】前記撮像装置は、前記被写体の画像の像変
    位を検出して前記回転成分と前記並進成分を算出する像
    変位検出手段を備え、当該像変位検出手段の算出した前
    記回転成分と前記並進成分に基づいて前記第一光軸変更
    手段と前記第二光軸変更手段または前記回転成分補正手
    段で前記回転成分と前記並進成分を補正することを特徴
    とする請求項1から請求項3記載の撮像装置。
    5. The image pickup device comprises image displacement detection means for detecting the image displacement of the image of the subject to calculate the rotational component and the translational component, and the rotational component calculated by the image displacement detection means. 4. The rotation component and the translational component are corrected by the first optical axis changing unit and the second optical axis changing unit or the rotation component correcting unit based on the translational component. The imaging device described.
  6. 【請求項6】前記第一光軸変更手段及び前記第二光軸変
    更手段は、反射板を有し、当該反射板を回転させて前記
    被写体からの光の光軸を変更させて前記回転成分と並進
    成分または前記並進成分を補正することを特徴とする請
    求項1から請求項請求項5のいずれかを記載の撮像装
    置。
    6. The first optical axis changing means and the second optical axis changing means each have a reflection plate, and the reflection component is rotated to change the optical axis of the light from the subject to rotate the rotation component. And the translational component or the translational component is corrected, and the imaging device according to any one of claims 1 to 5.
  7. 【請求項7】前記第一光軸変更手段及び前記第二光軸変
    更手段は、可変頂角プリズムを有し、当該可変頂角プリ
    ズムの頂角を変化させて、または、当該可変頂角プリズ
    ムへの入射光と出射光の屈折率を変化させて前記被写体
    からの光の光軸を変更させて前記回転成分と並進成分ま
    たは前記並進成分を補正することを特徴とする請求項1
    から請求項請求項5のいずれかを記載の撮像装置。
    7. The first optical axis changing means and the second optical axis changing means each have a variable apex angle prism, and the apex angle of the variable apex angle prism is changed, or the variable apex angle prism. 2. The rotation component and the translational component or the translational component are corrected by changing the refractive indexes of the incident light and the outgoing light to change the optical axis of the light from the subject.
    6. The image pickup apparatus according to claim 5.
  8. 【請求項8】前記第一光軸変更手段及び前記第二光軸変
    更手段は、反射板と可変頂角プリズムを備え、当該反射
    板を回転させるとともに、当該可変頂角プリズムの頂角
    を変化させて、または、当該可変頂角プリズムへの入射
    光と出射光の屈折率を変化させて前記回転成分と並進成
    分または前記並進成分を補正することを特徴とする請求
    項1から請求項請求項5のいずれかを記載の撮像装置。
    8. The first optical axis changing means and the second optical axis changing means each include a reflecting plate and a variable apex angle prism, rotate the reflecting plate, and change the apex angle of the variable apex angle prism. 2. The rotation component and the translation component or the translation component is corrected by changing the refractive index of the incident light and the emission light of the variable apex angle prism. 5. The imaging device according to any one of 5.
  9. 【請求項9】前記第一光軸変更手段は、反射板または可
    変頂角プリズムを備え、当該反射板を回転させ、また
    は、当該可変頂角プリズムの頂角を変化させ、あるい
    は、当該可変頂角プリズムへの入射光と出射光の屈折率
    を変化させて前記並進成分を補正し、前記第二光軸変更
    手段は、前記撮像手段を変位させて前記回転成分を補正
    することを特徴とする請求項1から請求項5のいずれか
    に記載の撮像装置。
    9. The first optical axis changing means includes a reflecting plate or a variable apex angle prism, rotates the reflecting plate, or changes the apex angle of the variable apex angle prism, or the variable apex angle prism. It is characterized in that the translational components are corrected by changing the refractive indexes of the incident light and the outgoing light to the prism, and the second optical axis changing means displaces the image pickup means to correct the rotational component. The image pickup apparatus according to claim 1.
  10. 【請求項10】前記第一光軸変更手段は、反射板または
    可変頂角プリズムを備え、当該反射板を回転させ、また
    は、当該可変頂角プリズムの頂角を変化させ、あるい
    は、当該可変頂角プリズムへの入射光と出射光の屈折率
    を変化させて前記並進成分を補正し、前記第二光軸変更
    手段は、前記撮影光学系の全体または一部を変位させて
    前記回転成分を補正することを特徴とする請求項1から
    請求項5のいずれかに記載の撮像装置。
    10. The first optical axis changing means includes a reflecting plate or a variable apex angle prism, rotates the reflecting plate, or changes the apex angle of the variable apex angle prism, or the variable apex angle. The translational component is corrected by changing the refractive indices of the incident light and the emitted light to the prism, and the second optical axis changing means displaces the whole or a part of the photographing optical system to correct the rotational component. The imaging device according to any one of claims 1 to 5, characterized in that.
  11. 【請求項11】前記第一光軸変更手段は、反射板または
    可変頂角プリズムを備え、当該反射板を回転させ、また
    は、当該可変頂角プリズムの頂角を変化させ、あるい
    は、当該可変頂角プリズムへの入射光と出射光の屈折率
    を変化させて前記並進成分を補正し、前記第二光軸変更
    手段は、前記撮像手段からの撮像画像情報の一部を切り
    出して前記回転成分を補正することを特徴とする請求項
    1から請求項5のいずれかに記載の撮像装置。
    11. The first optical axis changing means comprises a reflecting plate or a variable apex angle prism, rotates the reflecting plate, or changes the apex angle of the variable apex angle prism, or the variable apex angle. The translational component is corrected by changing the refractive indices of the incident light and the outgoing light to the prism, and the second optical axis changing means cuts out a part of the imaged image information from the image pickup means to obtain the rotational component. The image pickup device according to claim 1, wherein the image pickup device is corrected.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007023718A1 (en) * 2005-08-26 2007-03-01 Victor Company Of Japan, Limited Image shake correcting device
US7881596B2 (en) 2006-05-26 2011-02-01 Victor Company Of Japan, Limited Image fluctuation correction device
JP2014098931A (en) * 2006-12-04 2014-05-29 Samsung Electronics Co Ltd Apparatus and method for correcting shaking of image photographic device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007023718A1 (en) * 2005-08-26 2007-03-01 Victor Company Of Japan, Limited Image shake correcting device
US7881596B2 (en) 2006-05-26 2011-02-01 Victor Company Of Japan, Limited Image fluctuation correction device
JP2014098931A (en) * 2006-12-04 2014-05-29 Samsung Electronics Co Ltd Apparatus and method for correcting shaking of image photographic device

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