JP2006317848A - Still picture imaging apparatus - Google Patents

Still picture imaging apparatus Download PDF

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JP2006317848A
JP2006317848A JP2005142504A JP2005142504A JP2006317848A JP 2006317848 A JP2006317848 A JP 2006317848A JP 2005142504 A JP2005142504 A JP 2005142504A JP 2005142504 A JP2005142504 A JP 2005142504A JP 2006317848 A JP2006317848 A JP 2006317848A
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optical axis
subject
vector
correction
detection means
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Kengo Takeuchi
健悟 竹内
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Canon Inc
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Canon Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a still picture imaging apparatus with which a general user can easily perform panning photographing, without blurring of a subject, by making the user performing panning photographing perform an auxiliary camera operation, using an optical hand move compensation function and moving an optical axis shifting lens so as to make a moving subject stand still. <P>SOLUTION: While performing hand move compensation by using the optical blurr compensation function, the optical axis shifting lens is moved so as to make the moving subject stand still to facilitate panning photographing. A move detection means, such as a gyrosensor and movement vector detection of an image, are used to detect the subject. Furthermore, the motion vector of the subject is converted into movement quantity of the optical axis shifting lens, and the optical axis shifting lens is driven by corresponding movement quantity calculated (compensation quantity) simultaneously with shuttering. Thereby panning photographing effect of a still picture can be obtained. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、手ぶれ補正機構を有するデジタルカメラ、デジタルビデオカメラ等の静止画撮像装置に用いて好適であり、撮像した被写体の動きを止めるように撮影するカメラの撮影技術に関するものである。   The present invention relates to an imaging technique for a camera that is suitable for use in a still image imaging apparatus such as a digital camera or a digital video camera having a camera shake correction mechanism and shoots so as to stop the movement of the imaged subject.

カメラによる静止画の撮影技術として、流し撮りと呼ばれる撮影方法がある。これは、動く被写体を撮影する際に、カメラを動く被写体を追尾しながら、シャッター速度をやや遅めの設定にして撮影すると、撮影画像は、背景が流れ、動く被写体が静止して撮影できるので、スピード感を出すための撮影技術とされている。   As a still image shooting technique using a camera, there is a shooting method called panning. This is because when you shoot a moving subject, if you shoot with a slightly slower shutter speed while tracking the moving subject, the shot image will flow and the moving subject will shoot still It is said that it is a photography technique to give a sense of speed.

一方で、近年のデジタルカメラにおいては装置本体を手で持ち、動画像を撮影する際に、手ブレによる画像の乱れを抑制するために、手ぶれ補正機能を有するものがある。手ぶれ補正機構としては、手ぶれ検出系が、カメラ本体に取り付けた速度センサ等の出力から検出するタイプと、特許文献１に代表されるような画像の動きベクトルを検出方法を用いて、相対的にカメラの動きであると検出するようなタイプがある。また、検出したゆれ量を補正するための補正系としては、揺れ被写体からの光を光学的に補正するような光軸シフトレンズを搭載する光学式手ぶれ補正と呼ばれるタイプと、撮影素子中の各画素から一枚の画像を切り出す場所を変える電子式手ぶれ補正と呼ばれるタイプがあり、これらの中から検出系、補正系の組み合わせはさまざまで、検出系において上記の２つのタイプを組み合わせたハイブリッド式も登場している。   On the other hand, some recent digital cameras have a camera shake correction function in order to suppress image distortion due to camera shake when holding a device main body by hand and shooting a moving image. As a camera shake correction mechanism, a type in which a camera shake detection system detects from an output of a speed sensor or the like attached to a camera body and a motion vector of an image as typified by Patent Document 1 are relatively used. There are types that detect camera movement. In addition, as a correction system for correcting the detected amount of shake, there is a type called optical camera shake correction equipped with an optical axis shift lens that optically corrects light from a shaking subject, and each of the elements in the image sensor. There is a type called electronic camera shake correction that changes the location where one image is cut out from a pixel. Of these, there are various combinations of detection systems and correction systems, and hybrid systems combining the above two types in the detection system are also available. Has appeared.

さて、この手ぶれ補正機能を有するカメラにおいて、流し撮り撮影を行う場合には、被写体を追いかける時のカメラの揺れが、手ぶれと判断されてしまい、補正系のシフトレンズを駆動してしまう。手ぶれ補正用に付加された機能によって、流し撮りを行えなくなる。そのため、被写体の動き追尾して動かすようなカメラの動きを検出したら、手ぶれ補正の機構を止めるようにしている（例えば、特許文献２参照）。
特開昭６１−１０７８８６号公報 特開２００１−３５８９８２号公報 When a camera having this camera shake correction function is used to perform panning shooting, camera shake when chasing the subject is determined to be camera shake and drives the shift lens of the correction system. The function added for camera shake correction makes it impossible to perform panning. For this reason, when a camera movement that moves by tracking the movement of the subject is detected, the camera shake correction mechanism is stopped (see, for example, Patent Document 2).
JP-A-61-107886 JP 2001-358882 A

しかし上記発明では、流し撮り撮影時に、手ぶれ等が発生しても補正系が働くこともなり、撮影時の手ブレに対応できず、鮮明な画像が得られる可能性が低くなる恐れがあるという問題点があった。また、被写体を追尾しながらスローシャッターを切るという流し撮撮影技術では、撮影技術自体も、撮影者のテクニックが要求されるような一般的には難しいとされており、一般ユーザーには撮影が難しいという課題があった。   However, in the above-described invention, even if camera shake or the like occurs during panning shooting, the correction system may work, and it is not possible to cope with camera shake during shooting, and there is a risk that the possibility of obtaining a clear image is reduced. There was a problem. In addition, in the panoramic shooting technique of taking a slow shutter while tracking the subject, the shooting technique itself is generally considered to be difficult because the technique of the photographer is required, and shooting is difficult for general users. There was a problem.

本発明は、上述の問題点と課題を解決するための静止画撮像装置を提供することを目的とし、簡単な操作で、流し撮り撮影時にカメラ側でユーザーのサポートを行い、ブレのない高画質な流し撮り撮影画を撮影することを可能にするものである。   The present invention aims to provide a still image capturing apparatus for solving the above-described problems and problems. The camera supports the user at the time of panning shooting with a simple operation, and is free from blurring. This makes it possible to take a panning shot.

上述の課題を解決するために、請求項１によれば、光学的に手ぶれ補正を行う光軸シフトレンズを有する静止画撮像装置であって、装置本体の動きを検出するブレ検出手段と、撮像画像から画像の動きベクトルを検出するベクトル検出手段と、前記ブレ検出手段の出力と前記ベクトル検出手段の出力から演算して動く被写体を検出する被写体検出手段と、前記被写体検出手段により得られた被写体の動きベクトルに基づいて光軸補正量を演算する補正量算出手段と、前記補正量算出手段による補正量にしたがって、前記光軸シフトレンズを駆動して被写体の光軸補正を行う光軸補正手段を有することを特徴とする静止画撮像装置としている。   In order to solve the above-described problem, according to claim 1, there is provided a still image pickup device having an optical axis shift lens for optically correcting camera shake, a shake detection means for detecting the movement of the device main body, and imaging. Vector detection means for detecting a motion vector of an image from an image, subject detection means for detecting a moving subject calculated from the output of the blur detection means and the output of the vector detection means, and a subject obtained by the subject detection means Correction amount calculating means for calculating an optical axis correction amount based on the motion vector of the optical axis, and an optical axis correcting means for driving the optical axis shift lens to correct the optical axis of the subject according to the correction amount by the correction amount calculating means It is set as the still image imaging device characterized by having.

本発明を備えた静止画撮像装置では、光学式手ぶれ補正機能を用いて、動く被写体を静止するように光軸シフトレンズを動かし、流し撮り撮影を行うユーザーの補助的なカメラ動作をさせることで、一般ユーザーが容易に被写体のぶれない流し撮りが撮影できるという効果がある。   In the still image capturing apparatus provided with the present invention, the optical camera shake correction function is used to move the optical axis shift lens so as to stop the moving subject, and to perform an auxiliary camera operation of the user who performs the panning shot. There is an effect that a general user can easily take a panning shot without subject blurring.

以下、図面を参照しながら、本発明の実施例について説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図１は、カメラ一体型の画像記録再生装置の構成を表す図である。   FIG. 1 is a diagram illustrating a configuration of a camera-integrated image recording / reproducing apparatus.

カメラの起動時には、プログラムフラッシュメモリ１１３内に圧縮されたプログラムは、プログラムメモリ１１２に解凍／展開されＣＰＵ１１１は、プログラムメモリ１１２内のプログラムにしたがって動作し、以後説明する各種の制御動作を行う。   When the camera is activated, the program compressed in the program flash memory 113 is decompressed / expanded in the program memory 112, and the CPU 111 operates according to the program in the program memory 112, and performs various control operations described below.

被写体からの光は、フォーカス、ズーム等を撮像制御部１０１に制御されたレンズ群１００を通して撮像素子１０２に結像される。撮像素子１０２に結像された被写体象は光電変換されて、電気信号となる。撮像素子１０２からの光電変換画像は所定の周期で読み出され、カメラ信号処理１０３にて、標準的な画像信号になるように信号処理され、所定周期で標準的なデジタル画像として、画像メモリ１０４に一時的に蓄積されると同時に、ディスプレイ１０６へと送られて撮像した画像が表示される（撮影待機状態）。この撮影待機状態で、操作スイッチ１０５に含まれる撮影ボタン（未表示）を押すことで撮影される。撮影ボタンを押されると、撮像素子１０２から予め設定されたシャッター時間で読み出されて、前記画像メモリ１０４に一時的に蓄積された原画像は、画像符号化回路１０８にて静止画像の圧縮符号化がなされ（圧縮本画像）、メモリカード１０９に記録される。   The light from the subject is focused on the image sensor 102 through the lens group 100 whose focus, zoom, and the like are controlled by the imaging control unit 101. The subject image formed on the image sensor 102 is photoelectrically converted into an electrical signal. The photoelectric conversion image from the image sensor 102 is read out at a predetermined cycle, and signal processing is performed by the camera signal processing 103 so as to become a standard image signal, and the image memory 104 is converted into a standard digital image at a predetermined cycle. At the same time, the captured image is sent to the display 106 and displayed (photographing standby state). In this shooting standby state, shooting is performed by pressing a shooting button (not displayed) included in the operation switch 105. When the photographing button is pressed, the original image read out from the image sensor 102 with a preset shutter time and temporarily stored in the image memory 104 is compressed by a still image compression code in the image encoding circuit 108. (Compressed main image) and recorded in the memory card 109.

一方、撮影時に手ぶれなどの揺れを、本体に取り付けられている角速度センサのジャイロセンサ１１４で検出すると、撮像制御部１０１を通して、レンズ群中の一つである光軸シフトレンズ１００ａを駆動して、手ぶれによる光軸ずれを補正するように制御する。流し撮りモードの時には、所定の周期で読み出した画像から動きベクトルを検出するベクトル検出回路１１０からの出力を、撮像制御部１０１が光軸シフトレンズの駆動量に変換して、１００ａを所定のタイミングで駆動する。   On the other hand, when shaking such as camera shake at the time of shooting is detected by the gyro sensor 114 of the angular velocity sensor attached to the main body, the optical axis shift lens 100a which is one of the lens groups is driven through the imaging control unit 101, Control is performed to correct the optical axis deviation due to camera shake. In the panning mode, the imaging control unit 101 converts the output from the vector detection circuit 110 that detects a motion vector from an image read at a predetermined cycle into the driving amount of the optical axis shift lens, and 100a is set at a predetermined timing. Drive with.

なお、図１においてメモリカード１０９は、光ディスクやハードディスクや光磁気ディスク等でも構わないし、ＦＬＡＳＨメモリやＳＲＡＭ／ＤＲＡＭ等の固体半導体メモリで構成されるランダムアクセス可能なメモリでも構わないのは言うまでも無い。   In FIG. 1, the memory card 109 may be an optical disk, a hard disk, a magneto-optical disk, or the like, or may be a randomly accessible memory composed of a solid semiconductor memory such as a FLASH memory or SRAM / DRAM. No.

図２は、上記流し撮りモードの動作を説明するフローチャートである。   FIG. 2 is a flowchart for explaining the operation in the panning mode.

電源投入後、流し撮りモードに設定されると、Ｓ２０１において、ジャイロセンサの出力からカメラ本体の動きを検出する。ジャイロセンサ出力の直流成分が所定の閾値よりも大きい時はパンニングなどをして、カメラを動かしていると判断する。Ｓ２０２に進み、次にカメラ撮像信号から所定の周期で読み出した画像から、動く被写体を検出する。これには、ベクトル検出回路１１０を用いて、上記のカメラの動き（パンニング）があるときには、周囲よりも動きベクトルが小さいエリアを被写体とする。また、逆にカメラの動きがない場合には、周囲よりもベクトルが大きいエリアを被写体とし、Ｓ２０３にて、モニター上に検出した被写体をエリアを示して、正しく判定されたかどうかユーザーの入力を待つ。被写体として正しくて、ユーザーがＯＫボタンを操作すると、Ｓ２０４へ進む。   When the panning mode is set after the power is turned on, the movement of the camera body is detected from the output of the gyro sensor in S201. When the DC component of the gyro sensor output is larger than a predetermined threshold value, it is determined that the camera is moved by panning or the like. In step S202, a moving subject is detected from an image read from the camera image signal at a predetermined cycle. For this purpose, when the camera motion (panning) is performed using the vector detection circuit 110, an area having a motion vector smaller than the surrounding area is set as a subject. On the other hand, if there is no camera movement, an area having a vector larger than the surrounding area is set as a subject, and the subject detected on the monitor is indicated in S203 to wait for the user's input as to whether or not the determination is correct. . If it is correct as a subject and the user operates the OK button, the process proceeds to S204.

被写体襟が画像の中央に持ってくるように、画像中心からずれている分（Ｎ１）光軸補正レンズを動かす。ここでは撮影画角分よりも撮像素子のエリアが十分に大きく、切り出し処理を行える場合は、画像の切り出す素子を変更することで被写体を撮像画像の中心にするよう対応してもよい。次にＳ２０５では、被写体の動きベクトルＮ２を検出する。所定時間Ｔ秒の間隔で、動きベクトルを検出する。動きベクトル検出方法は、特許文献１などさまざまな提案がされているのでここでは省略する。   The optical axis correction lens is moved by the amount displaced from the image center (N1) so that the subject collar is brought to the center of the image. Here, when the area of the image sensor is sufficiently larger than the shooting angle of view, and the clipping process can be performed, the subject may be centered in the captured image by changing the element from which the image is clipped. In step S205, the subject motion vector N2 is detected. Motion vectors are detected at intervals of a predetermined time T seconds. The motion vector detection method is omitted here because various proposals such as Patent Document 1 have been proposed.

次にＳ２０６で、Ｎ２の値をシフトレンズの駆動量またはシフトレンズの目標位置へ変換する。これは、焦点距離の変化したがってシフトレンズの駆動量は比例的に変化する所定の算出式から得られる。   Next, in S206, the value of N2 is converted into the driving amount of the shift lens or the target position of the shift lens. This is obtained from a predetermined calculation formula in which the change in focal length and hence the driving amount of the shift lens changes proportionally.

Ｓ２０７において、ユーザーによる解除がなんらかの形でなされない時には、Ｓ２０８でシャッターボタンが押されるタイミングを待つ。なお、シャッターボタンが押されるまで、上記所定のタイミングＴ秒間隔でＳ２０４からＳ２０６への処理を繰り返す。シャッターが押されると、Ｓ２０９にうつり、光軸シフトレンズを駆動しながら、シャッターを開き、所定時間Ｔ秒でシャッターを閉じて、撮影動作を行う。Ｓ２１０で各種信号圧縮処理等を行ったのち、メモリカードに記録して、撮影完了となる。   If the release by the user is not made in any way in S207, the process waits for the timing when the shutter button is pressed in S208. Note that the processing from S204 to S206 is repeated at the predetermined timing T seconds until the shutter button is pressed. When the shutter is pressed, the process proceeds to S209, and while driving the optical axis shift lens, the shutter is opened, the shutter is closed for a predetermined time T seconds, and a photographing operation is performed. After performing various signal compression processes and the like in S210, they are recorded on the memory card and the shooting is completed.

さて次に図３を用いて、前述した流し撮りモード動作時について、被写体と背景の動きベクトルを図示して説明する。   Now, the motion vector of the subject and the background will be described with reference to FIG.

最上段は、動く被写体として車輪のついたクルマを示しており、ベクトルＭで示す方向に移動しているとする。この被写体に対して、図３（Ａ）はカメラをジャイロベクトル方向に動かして被写体追っている時のカメラ画像の枠内にある動きベクトルを示している。カメラを動かしている時（ジャイロセンサ出力からカメラを動かしていることがわかる）、背景である固定物の動きベクトルは、背景ベクトルＸのように、ジャイロベクトルと同じ方向（または１８０度逆方向）に大きな成分となって抽出される。   The top row shows a car with wheels as a moving subject, and is moving in the direction indicated by the vector M. FIG. 3A shows the motion vector within the frame of the camera image when the camera is moved in the gyro vector direction and the subject is chased. When the camera is moving (it can be seen from the gyro sensor output that the camera is moving), the motion vector of the fixed object that is the background is the same direction as the gyro vector (or the reverse direction of 180 degrees) as the background vector X. It is extracted as a large component.

一方で、ユーザーは動く被写体を追いかけながらカメラを動かすので、動く被写体エリアでは、動く被写体とユーザーがカメラを追った時のずれ分に相当するベクトルが検出される。ここではベクトルＢに示すような周囲の背景ベクトルに比較して小さなベクトルとなり、このことから動く被写体を自動的に検出する。ユーザーに被写体が正しく認識できたか確認が終わると、被写体エリアの中心位置と画像中心Ａとを結ぶベクトルを検出して、中心への補正量Ｎ１として検出し、動く被写体を中心位置付近へシフトするように、光軸シフトレンズを駆動する。また被写体の動きベクトル、つまり図中のベクトルＢが補正量Ｎ２としてシャッターを切る動作のタイミングで光軸シフトレンズを駆動する。   On the other hand, since the user moves the camera while chasing a moving subject, a vector corresponding to a shift between the moving subject and the time when the user follows the camera is detected in the moving subject area. Here, the vector becomes smaller than the surrounding background vector as shown in vector B, and from this, a moving subject is automatically detected. When the user confirms whether or not the subject is correctly recognized, a vector connecting the center position of the subject area and the image center A is detected and detected as a correction amount N1 to the center, and the moving subject is shifted to the vicinity of the center position. Thus, the optical axis shift lens is driven. Further, the motion vector of the subject, that is, the vector B in the figure is set as the correction amount N2, and the optical axis shift lens is driven at the timing of the shutter release operation.

図３（Ｂ）はカメラを手で持ち、基本的には固定している時のカメラ画角の枠内の動きベクトルを示している（カメラを動かしていない時には、ジャイロセンサ出力も小さくなる）。カメラを固定している場合は、図３（Ｂ）に示すように背景ベクトルＹは、極端に小さい動きベクトルとなる。これに対して、動く被写体はベクトルＣのように、被写体の速度によった周囲の背景ベクトルＹよりも大きなベクトルとなって現れ、これを検出することによって動く被写体を検出することができる。その後、カメラを動かしている時と同様に、中心位置への補正量Ｎ１、シャッターを切る時の補正量Ｎ２をそれぞれ抽出される。   FIG. 3B shows the motion vector within the frame of the camera angle of view when the camera is held by hand and basically fixed (the gyro sensor output is also small when the camera is not moving). . When the camera is fixed, the background vector Y is an extremely small motion vector as shown in FIG. On the other hand, a moving subject appears as a vector larger than the surrounding background vector Y depending on the speed of the subject, such as a vector C, and a moving subject can be detected by detecting this. Thereafter, the correction amount N1 to the center position and the correction amount N2 when the shutter is released are extracted in the same manner as when the camera is moved.

これらの動く被写体を画像中心へのシフト量Ｎ１とシャッター後の補正量Ｎ２をレンズの駆動量に換算し、シャッターをＴ秒間開きながら光軸シフトレンズを駆動しながら撮影を行うと、図３（Ｃ）のようにベクトル検出されるように、被写体が画像中心付近にあり、背景が流れるが、被写体が制止しているような撮影画を得られることになる。なお、ベクトルＢ（またはベクトルＣ）方向以外への方向にはジャイロセンサの出力を用いて通常の手ぶれ補正を行ってもよいのは言うまでもない。   When these moving subjects are photographed while converting the shift amount N1 to the center of the image and the correction amount N2 after the shutter into the lens drive amount and driving the optical axis shift lens while opening the shutter for T seconds, FIG. As the vector is detected as in (C), it is possible to obtain a photographed image in which the subject is near the center of the image and the background flows, but the subject is stopped. Needless to say, normal camera shake correction may be performed using the output of the gyro sensor in directions other than the vector B (or vector C) direction.

これまでに、被写体の動きベクトルを検出する時間をＴ秒とし、シャッター速度もＴ秒と固定した方法を示してきたが、動きベクトルがＴ秒でシャッター速度３Ｔ秒の場合には、図４に示す時間軸に沿った動作を行う。   So far, the method of detecting the motion vector of the subject as T seconds and the shutter speed as T seconds has been shown. However, when the motion vector is T seconds and the shutter speed is 3 T seconds, FIG. The operation along the time axis shown is performed.

被写体認識の後、被写体を中央へ動かす光軸シフトレンズ位置を修正し、トリガーとして撮影ボタンが押されると、始めＴ秒間は、被写体の動きベクトルＮ２分を補正する。残りの２Ｔ秒間は、この時のジャイロセンサ値を基準として、ジャイロ出力の変化量を駆動することで上記図３（Ｃ）のような撮影画像が得られる。なおシャッター速度は動きベクトル検出時間Ｔ秒で、動きベクトルの大きさから撮影による画像に収まる時間を自動的に算出して、流し撮り効果が大きくなる最大のシャッター時間の長さを決めてもよいし、ユーザーが任意に設定できるようにしてもよいのは言うまでもない。   After the subject recognition, the position of the optical axis shift lens that moves the subject to the center is corrected, and when the shooting button is pressed as a trigger, the motion vector N2 of the subject is corrected for the first T seconds. For the remaining 2T seconds, a captured image as shown in FIG. 3C is obtained by driving the amount of change in the gyro output with reference to the gyro sensor value at this time. Note that the shutter speed is the motion vector detection time T seconds, and it is possible to automatically calculate the time that fits in the image by shooting from the magnitude of the motion vector, and to determine the maximum shutter time length at which the panning effect is increased. Needless to say, the user may arbitrarily set the value.

実施例のシステムの構成を表す図The figure showing the structure of the system of an Example 実施例を説明するフローチャートFlowchart explaining the embodiment 実施例を説明する図The figure explaining an Example 実施例を説明する図The figure explaining an Example

符号の説明Explanation of symbols

１００ レンズユニット
１００ａ 光軸シフトレンズ
１０１ 撮像制御部
１０２ 撮像素子
１０３ カメラ信号処理
１０４ 画像メモリ
１０５ 操作スイッチ群
１０６ ディスプレイ
１０７ 画像処理回路
１０８ 動画符号化復号化回路
１０９ メモリカード
１１０ ベクトル検出回路
１１１ ＣＰＵ
１１２ プログラムメモリ
１１３ プログラムフラッシュメモリ
１１４ ジャイロセンサ
１１５ バス DESCRIPTION OF SYMBOLS 100 Lens unit 100a Optical axis shift lens 101 Image pick-up control part 102 Image pick-up element 103 Camera signal processing 104 Image memory 105 Operation switch group 106 Display 107 Image processing circuit 108 Movie encoding / decoding circuit 109 Memory card 110 Vector detection circuit 111 CPU
112 Program memory 113 Program flash memory 114 Gyro sensor 115 Bus

Claims (10)

光学的に手ぶれ補正を行う光軸シフトレンズを有する静止画撮像装置であって、装置本体の動きを検出するブレ検出手段と、撮像画像から画像の動きベクトルを検出するベクトル検出手段と、前記ブレ検出手段の出力と前記ベクトル検出手段の出力から演算して動く被写体を検出する被写体検出手段と、前記被写体検出手段により得られた被写体の動きベクトルに基づいて光軸補正量を演算する補正量算出手段と、前記補正量算出手段による補正量にしたがって、前記光軸シフトレンズを駆動して被写体の光軸補正を行う光軸補正手段を有することを特徴とする静止画撮像装置。   A still image imaging apparatus having an optical axis shift lens for optically correcting camera shake, a blur detection unit for detecting a motion of the apparatus body, a vector detection unit for detecting a motion vector of an image from a captured image, and the blur Subject detection means for detecting a moving subject calculated from the output of the detection means and the output of the vector detection means; and correction amount calculation for calculating an optical axis correction amount based on the motion vector of the subject obtained by the subject detection means And an optical axis correction unit that drives the optical axis shift lens to correct the optical axis of the subject according to the correction amount by the correction amount calculation unit. 前記被写体検出手段は、前記ブレ検出手段による出力により判断される該装置全体が動いている時は、前記ベクトル検出手段のベクトルが比較的小さいエリアを被写体として検出することを特徴とする請求項１に記載の静止画撮像装置。   2. The subject detection means detects an area where the vector of the vector detection means is relatively small as a subject when the entire apparatus determined by the output from the blur detection means is moving. The still image imaging device described in 1. 前記被写体検出手段は、前記ブレ検出手段による出力により判断される該装置全体が止まっている時は、前記ベクトル検出手段のベクトルが比較的大きいエリアを被写体として検出することを特徴とする請求項１または請求項２に記載の静止画撮像装置。   The object detection means detects an area where the vector of the vector detection means is relatively large as an object when the entire apparatus determined by the output from the shake detection means is stopped. Or the still image imaging device according to claim 2. 前記補正量算出手段は、前記光軸シフトレンズの駆動先目標位置として、位置センサの位置の値をシャッターを切る前と後の２つの値を持つことを特徴とする請求項１から請求項３のいずれかに記載の静止画撮像装置。   4. The correction amount calculating means has two values of a position sensor position before and after the shutter is released as a driving target position of the optical axis shift lens. The still image imaging device according to any one of the above. 前記補正量算出手段は、前記ベクトル検出手段により得られるベクトルから演算時の焦点距離に比例して目標位置を算出することを特徴とする請求項１から請求項４のいずれかに記載の静止画撮像装置。   5. The still image according to claim 1, wherein the correction amount calculation unit calculates a target position in proportion to a focal length at the time of calculation from a vector obtained by the vector detection unit. Imaging device. 前記補正量算出手段は、さらに画面中央との差分をベクトル検出手段に加えて、被写体を画像中央近くにする補正量を算出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静止画撮像装置。   6. The correction amount calculation unit further adds a difference from the center of the screen to the vector detection unit to calculate a correction amount that brings the subject close to the center of the image. Still image pickup device. 前記光軸補正手段は、シャッターを切ると同時に補正のための駆動を行うことを特徴とする請求項１から請求項６のいずれかに記載の静止画撮像装置。   7. The still image capturing apparatus according to claim 1, wherein the optical axis correction unit performs driving for correction at the same time as the shutter is released. 前記光軸補正手段は、シャッターを切る前に補正した後、シャッターを切ると同時に２度目の補正を行うことを特徴とする請求項１から請求項６のいずれかに記載の静止画撮像装置。   7. The still image capturing apparatus according to claim 1, wherein the optical axis correction unit performs the second correction at the same time as the shutter is released after the correction before the shutter is released. 前記光軸補正手段は、前記補正量検出手段以外へのベクトルに対しては、通常の手ぶれ補正を行う光軸補正手段であることを特徴とする請求項１から請求項８のいずれかに記載の静止画撮像装置。   9. The optical axis correction unit according to claim 1, wherein the optical axis correction unit is an optical axis correction unit that performs normal camera shake correction on a vector other than the correction amount detection unit. Still image pickup device. 前記ブレ検出手段は、ジャイロセンサを用いることを特徴とする請求項１から請求項９のいずれかに記載の静止画撮像装置。   The still image capturing apparatus according to claim 1, wherein the blur detecting unit uses a gyro sensor.
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