JPH05110925A - Magnetic recording and photographing device - Google Patents

Magnetic recording and photographing device

Info

Publication number
JPH05110925A
JPH05110925A JP3269474A JP26947491A JPH05110925A JP H05110925 A JPH05110925 A JP H05110925A JP 3269474 A JP3269474 A JP 3269474A JP 26947491 A JP26947491 A JP 26947491A JP H05110925 A JPH05110925 A JP H05110925A
Authority
JP
Japan
Prior art keywords
eyeball
gazing
circuit
axis
optical axis
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
JP3269474A
Other languages
Japanese (ja)
Other versions
JP3290450B2 (en
Inventor
Taeko Tanaka
妙子 田中
Kitahiro Kaneda
北洋 金田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP26947491A priority Critical patent/JP3290450B2/en
Publication of JPH05110925A publication Critical patent/JPH05110925A/en
Priority to US08/490,515 priority patent/US5594500A/en
Priority to US08/730,298 priority patent/US6094222A/en
Application granted granted Critical
Publication of JP3290450B2 publication Critical patent/JP3290450B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2213/00Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B2213/02Viewfinders
    • G03B2213/025Sightline detection

Abstract

PURPOSE:To enable exact and smooth focusing by calculating the average value of attention points, setting a distance measure frame to the average gazing point and controlling the size of the distance measure frame corresponding to a focal distance. CONSTITUTION:The eyeball optical axis detecting circuit of a signal processing circuit 109 calculates the rotating angle of an eyeball optical axis, an eyeball discriminating circuit discriminates whether an eyeball gazing at a finder picture 102 is right or left, a visual axis correcting circuit corrects a visual axis based on the rotating angle of the eyeball optical axis and eyeball discrimination information, and an attention point detecting circuit detects the attention point based on an optical constant. A controller 209 controls a driving circuit 211 so that a high frequency component from an HPF 208 can be maximum. Namely, the signal processing circuit 109 detects the attention points, the controller 209 calculates the average value of the gazing points, the distance measure frame is set to the calculated average gazing point, and the size of the distance measure frame is controlled corresponding to the focal distance. Thus, exact and smooth focusing is enabled.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、磁気記録撮影装置に関
するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording and photographing device.

【0002】[0002]

【従来の技術】従来、時々刻々と変化する主被写体の位
置を撮影者が注視している位置として視線検出装置によ
り正確に検出し、検出された注視座標に測距枠を設定
し、その測距枠内の映像信号により画面の鮮鋭度を検出
し、その鮮鋭度が最大になるようにフォーカスレンズ位
置を制御してピントを合わせるようにしたカメラ一体型
VTRが提案されている。
2. Description of the Related Art Conventionally, the position of a main subject, which changes moment by moment, is accurately detected by a line-of-sight detecting device as a position at which the photographer is gazing, and a range-finding frame is set at the detected gaze coordinates, and the measurement is performed. A camera-integrated VTR has been proposed in which the sharpness of the screen is detected by the video signal in the distance frame, and the focus lens position is controlled so that the sharpness is maximized to focus.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、時々刻
々と変化する主被写体の位置を視線検出装置により正確
に検出するようにしたので、視線の位置が速い場合、ピ
ントを合わせる位置が刻々と変化することになり、落着
きのない画像が得られるという問題点があった。また、
設定される測距枠の大きさが固定されているので測距枠
内の注視した位置で合焦しないことがあった。
However, since the position of the main subject, which changes from moment to moment, is detected accurately by the line-of-sight detecting device, when the position of the line-of-sight is fast, the position to be focused changes momentarily. As a result, there is a problem that a restless image can be obtained. Also,
Since the size of the range-finding frame to be set is fixed, the focus position may not be focused at the position within the range-finding frame.

【0004】本発明の目的は、上記のような問題点を解
決し、正確かつ円滑に合焦させることができる磁気記録
撮影装置を提供することにある。
An object of the present invention is to solve the above problems and provide a magnetic recording / photographing apparatus capable of accurately and smoothly focusing.

【0005】[0005]

【課題を解決するための手段】このような目的を達成す
るため、本発明は、測距枠内で合焦を行う合焦手段を有
する磁気記録撮影装置において、注視点を検出する検出
手段と、該検出手段により検出された注視点の平均値を
算出する算出手段と、該算出手段により算出された平均
注視点に測距枠を設定する設定手段と、該設定手段によ
り設定された測距枠の大きさを焦点距離に応じて制御す
る制御手段とを備えたことを特徴とする。
In order to achieve such an object, the present invention provides a detecting means for detecting a gazing point in a magnetic recording and photographing apparatus having a focusing means for focusing within a distance measuring frame. Calculating means for calculating an average value of the gazing points detected by the detecting means, setting means for setting a distance measuring frame to the average gazing points calculated by the calculating means, and distance measuring set by the setting means And a control means for controlling the size of the frame according to the focal length.

【0006】[0006]

【作用】本発明では、注視点を検出手段により検出し、
検出手段により検出された注視点の平均値を算出手段に
より算出し、算出手段により算出された平均注視点に測
距枠を設定手段により設定し、設定手段により設定され
た測距枠の大きさを焦点距離に応じて制御手段により制
御する。
In the present invention, the gazing point is detected by the detecting means,
The average value of the gazing points detected by the detecting means is calculated by the calculating means, the distance measuring frame is set by the setting means to the average gazing point calculated by the calculating means, and the size of the distance measuring frame set by the setting means. Is controlled by the control means according to the focal length.

【0007】[0007]

【実施例】以下、本発明の実施例を図面を参照して詳細
に説明する。
Embodiments of the present invention will now be described in detail with reference to the drawings.

【0008】図1は本発明の一実施例を示す。これはカ
メラ一体型VTRの例である。
FIG. 1 shows an embodiment of the present invention. This is an example of a camera-integrated VTR.

【0009】図1において、101は電子ビューファイ
ンダ、102はファインダ画面である。
In FIG. 1, 101 is an electronic viewfinder and 102 is a finder screen.

【0010】EDは視線検出装置で、光電素子列6と、
赤外発光ダイオード5a,5bと、光学系100と、信
号処理回路9により構成されている。
ED is a line-of-sight detection device, which includes a photoelectric element array 6 and
The infrared light emitting diodes 5a and 5b, the optical system 100, and the signal processing circuit 9 are included.

【0011】光学系100は、ダイクロイックミラー
2,接眼レンズ1,受光レンズ4により構成されてい
る。ファインダ画面102からの光はダイクロイックミ
ラー2,接眼レンズ1を介して眼球200に入射されて
いる。ファインダ画面102から眼球200に入射され
る光の軸をX軸とする(図2参照)。
The optical system 100 comprises a dichroic mirror 2, an eyepiece lens 1, and a light receiving lens 4. Light from the finder screen 102 is incident on the eyeball 200 via the dichroic mirror 2 and the eyepiece lens 1. The axis of light incident on the eyeball 200 from the viewfinder screen 102 is defined as the X axis (see FIG. 2).

【0012】赤外発光ダイオード5a,5bは接眼レン
ズ1の眼球200側上端部の近傍にX軸に対して対象に
配置され、赤外光が眼球200の中心に入射されるよう
になっている。眼球200からの赤外光は、接眼レンズ
1を通り、ダイクロイックミラー2により受光レンズ4
に導かれ、光電素子列6に入射するようになっている。
光電素子列6面上の眼球反射像の一例を図5に示す。X
軸に直交するとともに、ダイクロイックミラー2により
受光レンズ4に導かれ、光電素子列6に入射される光の
軸に平行な軸をY軸とし、X軸とY軸を含む平面に直交
する軸をZ軸とする(図2参照)。
The infrared light emitting diodes 5a and 5b are arranged symmetrically with respect to the X axis near the upper end of the eyepiece 1 on the eyeball 200 side so that infrared light is incident on the center of the eyeball 200. .. Infrared light from the eyeball 200 passes through the eyepiece lens 1 and is received by the dichroic mirror 2 to the light receiving lens 4
And is incident on the photoelectric element array 6.
An example of the eyeball reflection image on the surface of the photoelectric element array 6 is shown in FIG. X
An axis that is orthogonal to the axis and is parallel to the axis of the light that is guided to the light receiving lens 4 by the dichroic mirror 2 and is incident on the photoelectric element array 6 is the Y axis, and the axis that is orthogonal to the plane including the X axis and the Y axis The Z axis is used (see FIG. 2).

【0013】光電素子列6は複数の光電素子がZ軸に平
行な直線上に並べらている。
In the photoelectric element array 6, a plurality of photoelectric elements are arranged on a straight line parallel to the Z axis.

【0014】信号処理回路109は眼球光軸検出回路、
眼球判別回路、視軸補正回路、注視点検出回路等により
構成されている。眼球光軸検出回路は眼球光軸の回転角
を求めるものである。眼球判別回路はファインダ画面1
02を注視している眼球が左右いずれであるかを判別す
るものである。視軸補正回路は眼球光軸の回転角と眼球
判別情報に基づき視軸の補正を行うものである。注視点
検出回路は光学定数に基づき注視点を算出するものであ
る。
The signal processing circuit 109 is an eyeball optical axis detection circuit,
It is composed of an eyeball discrimination circuit, a visual axis correction circuit, a gazing point detection circuit, and the like. The eyeball optical axis detection circuit determines the rotation angle of the eyeball optical axis. The eye discriminating circuit is the finder screen 1
It is to determine whether the eyeball gazing at 02 is on the left or right. The visual axis correction circuit corrects the visual axis based on the rotation angle of the optical axis of the eyeball and the eyeball discrimination information. The gazing point detection circuit calculates a gazing point based on an optical constant.

【0015】201はフォーカスレンズ、202はズー
ムレンズ、203は絞りである。204はCCD撮像素
子で、フォーカスレンズ201、ズームレンズ202、
絞り203を介して入射された光信号を電気信号に変換
するものである。205はプリアンプで、CCD撮像素
子204からの電気信号を所定のレベルに増幅するもの
である。206はビデオ信号処理回路で、プリアンプ2
05からの信号を処理するものである。
Reference numeral 201 is a focus lens, 202 is a zoom lens, and 203 is a diaphragm. Reference numeral 204 denotes a CCD image sensor, which includes a focus lens 201, a zoom lens 202,
The optical signal incident through the diaphragm 203 is converted into an electric signal. Reference numeral 205 denotes a preamplifier that amplifies an electric signal from the CCD image pickup element 204 to a predetermined level. A video signal processing circuit 206 includes a preamplifier 2
The signal from 05 is processed.

【0016】212はモータで、フォーカスレンズ20
1を移動させるものである。211は駆動回路で、モー
タ212を駆動するものである。
Reference numeral 212 is a motor for the focus lens 20.
1 is to be moved. A drive circuit 211 drives the motor 212.

【0017】208はHPFで、プリアンプ205から
ゲート207を介して入力される信号の高周波成分を取
り出すものである。209は制御装置で、HPF208
からの高周波成分が最大になるように駆動回路211を
制御するものである。制御装置209はズームエンコー
ダ210の出力と、信号処理回路109からの注視点情
報に基づきゲート207を制御するものである。
Reference numeral 208 denotes an HPF which extracts a high frequency component of a signal input from the preamplifier 205 via the gate 207. Reference numeral 209 is a control device, which is an HPF 208.
The drive circuit 211 is controlled so that the high-frequency component from the is maximized. The control device 209 controls the gate 207 based on the output of the zoom encoder 210 and the gazing point information from the signal processing circuit 109.

【0018】図7は信号処理回路109による視線検出
手順を示すフローチャートである。赤外発光ダイオード
5a,5bからの光束は、角膜反射像eと角膜反射像d
がZ軸と平行な方向にそれぞれ形成される(図3参
照)。角膜反射像eと角膜反射像dの中点のZ座標は角
膜21の曲率中心oのZ座標と一致している。観察者の
眼球光軸がY軸を中心に回動していない場合、すなわ
ち、眼球光軸とX軸が一致いる場合(角膜の曲率中心o
と瞳孔の中心C´がX軸上にある)の角膜反射像e
(d)は、X軸から+Y方向にずれて形成される(図4
参照)。
FIG. 7 is a flow chart showing the visual axis detection procedure by the signal processing circuit 109. Light fluxes from the infrared light emitting diodes 5a and 5b are the corneal reflection image e and the corneal reflection image d.
Are formed in directions parallel to the Z axis (see FIG. 3). The Z coordinate of the midpoint of the corneal reflection image e and the corneal reflection image d coincides with the Z coordinate of the center of curvature o of the cornea 21. When the optical axis of the eyeball of the observer does not rotate about the Y axis, that is, when the optical axis of the eyeball and the X axis coincide (the center of curvature o of the cornea).
And the center C'of the pupil is on the X axis)
(D) is formed with a shift from the X axis in the + Y direction (see FIG. 4).
reference).

【0019】眼球光軸検出回路により眼球光軸の回転角
を検出し、光電素子列6から像信号を図5において−Y
方向から順次読み出し、角膜反射像e´,d´が形成さ
れた光電素子列6の行Yp´を検出し(#1)、角膜反
射像e´,d´が形成された光電素子列6の列方向の発
生位置Zd´,Ze´を検出する(#2)。ついで、角
膜反射像の間隔|Zd´−Ze´|より光学系の結像倍
率βを求める(#3)。眼球からの反射像の結像倍率β
は、角膜反射像e,dの間隔が赤外発光ダイオード5
a,5bと観察者の眼球との距離に比例して変化するた
め、光電素子列6上に再結像した角膜反射像の位置e
´,d´を検出することにより求めることができる。そ
して、角膜反射像e,dが再結像された光電素子列6の
行Yp´上の虹彩23と瞳孔24の境界Z2b´,Z2
a´を検出し(#4)、行Yp´上の瞳孔径|Z2b´
−Z2a´|を算出する(#5)。
The rotation angle of the eyeball optical axis is detected by the eyeball optical axis detection circuit, and the image signal from the photoelectric element array 6 is shown in FIG.
The rows Yp 'of the photoelectric element columns 6 on which the corneal reflection images e'and d'are formed are detected (# 1), and the photoelectric element columns 6 on which the corneal reflection images e'and d'are formed are detected. Generation positions Zd 'and Ze' in the column direction are detected (# 2). Then, the imaging magnification β of the optical system is obtained from the interval | Zd′−Ze ′ | of the corneal reflection images (# 3). Imaging magnification β of the reflected image from the eyeball
Is the infrared light emitting diode 5 in which the interval between the corneal reflection images e and d is
Since a and 5b change in proportion to the distance between the eyeball of the observer and the eyeball of the observer, the position e of the corneal reflection image re-imaged on the photoelectric element array 6
It can be obtained by detecting 'and d'. Then, the boundaries Z2b ', Z2 between the iris 23 and the pupil 24 on the row Yp' of the photoelectric element column 6 on which the corneal reflection images e, d are re-imaged.
a'is detected (# 4), and the pupil diameter on the row Yp '| Z2b'
-Z2a '| is calculated (# 5).

【0020】通常、角膜反射像が形成される光電素子列
6の行Yp´は、図5に示すように、瞳孔中心C´が存
在する光電素子列6の行YO´より図5において−Y方
向にずれている。像信号を読み出すべきもう1つの光電
素子列の行Y1´を結像倍率βと瞳孔径により算出する
(#6)。行Y1´は行Yp´から充分離れている。つ
いで、光電素子列の行Y1´上の虹彩23と瞳孔24の
境界Z1b´,Z1a´を検出し(#7)、境界点(Z
1a´,Y1´),境界点(Z1b´,Y1´),境界
点(Z2a´,Yp´),境界点(Z2b´,Yp´)
のうちの少なくとも3点を用いて瞳孔の中心位置C´
(Zc´,Yc´)を求める。
Generally, as shown in FIG. 5, the row Yp 'of the photoelectric element column 6 on which the corneal reflection image is formed is -Y in FIG. 5 from the row YO' of the photoelectric element column 6 in which the pupil center C'is present. Misaligned. The row Y1 'of the other photoelectric element column from which the image signal is to be read out is calculated from the imaging magnification β and the pupil diameter (# 6). Row Y1 'is sufficiently distant from row Yp'. Then, the boundaries Z1b 'and Z1a' between the iris 23 and the pupil 24 on the row Y1 'of the photoelectric element row are detected (# 7), and the boundary points (Z
1a ', Y1'), boundary point (Z1b ', Y1'), boundary point (Z2a ', Yp'), boundary point (Z2b ', Yp')
Of the central position C ′ of the pupil using at least three points
Calculate (Zc ', Yc').

【0021】ついで、角膜反射像の位置(Zd´,Yp
´),(Ze´,Yp´)と、次式(1),(2)から
眼球光軸の回転角θz,θyを求める(#8)。
Then, the position of the corneal reflection image (Zd ', Yp
′), (Ze ′, Yp ′) and the following equations (1) and (2), the rotation angles θz and θy of the optical axis of the eyeball are obtained (# 8).

【0022】[0022]

【数1】 [Equation 1]

【0023】[0023]

【数2】 [Equation 2]

【0024】多だし、δY´は赤外発光ダイオード5
a,5bが受光レンズ4に対して光電素子列6の列方向
の直交する方向に配置されていることにより、角膜反射
像の再結像位置e´,d´が光電素子列6の上で角膜2
1の曲率中心のY座標に対してY軸方向のずれを補正す
る補正値である。
ΔY 'is an infrared light emitting diode 5
Since the a and 5b are arranged in the direction orthogonal to the row direction of the photoelectric element row 6 with respect to the light receiving lens 4, the re-imaging positions e ′ and d ′ of the corneal reflection image are on the photoelectric element row 6. Cornea 2
This is a correction value for correcting the deviation in the Y axis direction with respect to the Y coordinate of the center of curvature of 1.

【0025】ついで、眼球判別回路により、例えば、算
出される眼球光軸の回転角の分布からファインダを覗い
ている観察者の眼が右眼または左眼のいずれかを判別し
(#9)、眼球判別情報と眼球光軸の回転角に基づき補
正回路により視軸を補正し(#10)、光学系100の
光学定数に基づき注視点検出回路により注視点を算出す
る(#11)。
Then, the eye discriminating circuit discriminates, for example, whether the eye of the observer looking through the finder is the right eye or the left eye from the distribution of the calculated rotation angles of the eyeball optical axis (# 9). The visual axis is corrected by the correction circuit based on the eyeball discrimination information and the rotation angle of the optical axis of the eyeball (# 10), and the gazing point is calculated by the gazing point detection circuit based on the optical constant of the optical system 100 (# 11).

【0026】図8は図1図示制御装置209による制御
手順を示すフローチャートである。ステップS301に
て、時間tをt=0に設定し、その時点での注視点情報
のx,y座標を(Xo,Yo)とし、ステップS302
にて、時間tが一定時間th1より小さいか否かを判定
する。判定した結果、時間tが一定時間th1より小さ
い場合は、ステップS303に移行し、ステップS30
3にて、(Xo,Yo)=(Xo,Yo)+(x,y)
とする。ただし、(x,y)はこの時点での注視点座標
である。そして、ステップS304にて、t=t+1と
し、ステップS310にて、AF動作を行い、ステップ
S302に戻る。
FIG. 8 is a flow chart showing the control procedure by the control device 209 shown in FIG. In step S301, the time t is set to t = 0, and the x and y coordinates of the point-of-regard information at that time are set to (Xo, Yo), and step S302
At, it is determined whether or not the time t is less than the constant time th1. As a result of the determination, when the time t is smaller than the certain time th1, the process proceeds to step S303 and step S30.
At 3, (Xo, Yo) = (Xo, Yo) + (x, y)
And However, (x, y) is the gazing point coordinates at this point. Then, t = t + 1 is set in step S304, the AF operation is performed in step S310, and the process returns to step S302.

【0027】他方、ステップS302にて、判定した結
果、時間tが一定時間th1より小さくない場合は、ス
テップS305に移行し、ステップS305にて、一定
時間th1の間の注視点情報の平均値、すなわち、(X
o,Yo)=(Xo,Yo)/th1を計算する。求め
た座標(Xo,Yo)に測距枠を設定し、ゲート207
の中心値として入力する。ついで、ステップS306に
て、焦点距離がワイド側またはテレ側のいずれかを判断
し、判断した結果、ワイド側である場合、ステップS3
07にて図9に示す大きい枠を設定する。この枠の座標
(x1 ,y1 ),座標(x2 ,y2 )は次のように表さ
れる。
On the other hand, if the result of determination in step S302 is that time t is not less than the fixed time th1, the process moves to step S305, and in step S305 the average value of the gaze point information during the fixed time th1, That is, (X
Calculate o, Yo) = (Xo, Yo) / th1. A distance measuring frame is set at the obtained coordinates (Xo, Yo), and the gate 207 is set.
Enter as the center value of. Next, in step S306, it is determined whether the focal length is the wide side or the tele side, and if the result of the determination is that it is the wide side, step S3
At 07, a large frame shown in FIG. 9 is set. The coordinates (x 1 , y 1 ) and the coordinates (x 2 , y 2 ) of this frame are expressed as follows.

【0028】 (x1 ,y1 )=(Xo,Yo)−(a,b) (x2 ,y2 )=(Xo,Yo)+(a,b) 他方、ステップS306にて判断した結果、テレ側であ
る場合、ステップS307にて図9に示す小さい枠を設
定する。この枠の座標(x1 ,y1 ),座標(x2 ,y
2 )は次のように表される。
(X 1 , y 1 ) = (Xo, Yo) − (a, b) (x 2 , y 2 ) = (Xo, Yo) + (a, b) On the other hand, the result determined in step S 306 , On the tele side, a small frame shown in FIG. 9 is set in step S307. The coordinates (x 1 , y 1 ) and coordinates (x 2 , y) of this frame
2 ) is expressed as follows.

【0029】 (x1 ,y1 )=(Xo,Yo)−(c,d) (x2 ,y2 )=(Xo,Yo)+(c,d) 枠を設定した後、ステップS309にて、時間tを0に
設定し、新たに注視点の座標を読み込む。ここで求めら
れた枠座標に基づきゲート207を制御する。ついで、
ステップS310に移行する。
(X 1 , y 1 ) = (Xo, Yo) − (c, d) (x 2 , y 2 ) = (Xo, Yo) + (c, d) After setting the frame, the process proceeds to step S 309. Then, the time t is set to 0, and the coordinates of the gazing point are newly read. The gate 207 is controlled based on the frame coordinates obtained here. Then,
The process moves to step S310.

【0030】なお、本実施例では、ゲート207を制御
する際の情報として、注視点座標と焦点距離を用い、焦
点距離を2段階に分けた例を説明したが、数段階に分け
ていも良い。この場合、測距枠の大きさをより多く設定
でき、画像情報に合った測距枠の位置と大きさを設定す
ることができる。
In this embodiment, an example in which the focal point coordinates and the focal length are used as the information for controlling the gate 207 and the focal length is divided into two stages has been described, but it may be divided into several stages. .. In this case, the size of the distance measuring frame can be set more, and the position and size of the distance measuring frame can be set in accordance with the image information.

【0031】[0031]

【発明の効果】以上説明したように、本発明によれば、
注視点の平均値を算出し、算出された平均注視点に測距
枠を設定し、設定された測距枠の大きさを焦点距離に応
じて制御するようにしたので、正確かつ円滑に合焦させ
ることができるという効果がある。
As described above, according to the present invention,
The average value of the gazing points is calculated, the distance measuring frame is set to the calculated average gazing point, and the size of the set distance measuring frame is controlled according to the focal length. It has the effect of being able to burn.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例を示すブロック図である。FIG. 1 is a block diagram showing an embodiment of the present invention.

【図2】図1図示光学系100の配置例を示す図であ
る。
FIG. 2 is a diagram showing an arrangement example of an optical system 100 shown in FIG.

【図3】X軸およびZ軸を含む平面上の角膜反射像の位
置の一例を示す図である。
FIG. 3 is a diagram showing an example of a position of a corneal reflection image on a plane including an X axis and a Z axis.

【図4】X軸およびY軸を含む平面上の角膜反射像の位
置の一例を示す図である。
FIG. 4 is a diagram showing an example of positions of a corneal reflection image on a plane including an X axis and a Y axis.

【図5】眼球からの反射像の一例を示す図である。FIG. 5 is a diagram showing an example of a reflected image from an eyeball.

【図6】光電素子列の行Yp´から得られる出力信号の
一例を示す図である。
FIG. 6 is a diagram showing an example of output signals obtained from a row Yp ′ of a photoelectric element column.

【図7】信号処理回路109による視線検出手順の一例
を示すフローチャートである。
7 is a flowchart showing an example of a visual line detection procedure by the signal processing circuit 109. FIG.

【図8】図1図示制御装置209による制御手順の一例
を示すフローチャートである。
8 is a flowchart showing an example of a control procedure by the control device 209 shown in FIG.

【図9】設定される測距枠の一例を示す図である。FIG. 9 is a diagram showing an example of a distance measuring frame that is set.

【符号の説明】[Explanation of symbols]

1 接眼レンズ 2 ダイクロイックミラー 4 受光レンズ 5a,5b 赤外発光ダイオード 6 光電素子列 101 電子ビューファインダ 102 ファインダ画面 200 眼 201 フォーカスレンズ 202 ズームレンズ 203 絞り 204 CCD撮像素子 205 プリアンプ 206 ビデオ信号処理回路 207 ゲート 208 HPF 209 制御装置 211 駆動回路 212 モータ 1 eyepiece lens 2 dichroic mirror 4 light receiving lens 5a, 5b infrared light emitting diode 6 photoelectric element array 101 electronic viewfinder 102 viewfinder screen 200 eye 201 focus lens 202 zoom lens 203 aperture 204 CCD image sensor 205 preamplifier 206 video signal processing circuit 207 gate 208 HPF 209 Control device 211 Drive circuit 212 Motor

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 測距枠内で合焦を行う合焦手段を有する
磁気記録撮影装置において、 注視点を検出する検出手段と、 該検出手段により検出された注視点の平均値を算出する
算出手段と、 該算出手段により算出された平均注視点に測距枠を設定
する設定手段と、 該設定手段により設定された測距枠の大きさを焦点距離
に応じて制御する制御手段とを備えたことを特徴とする
磁気記録撮影装置。
1. A magnetic recording and photographing apparatus having a focusing means for focusing within a range-finding frame, a detecting means for detecting a gazing point, and a calculation for calculating an average value of the gazing points detected by the detecting means. Means, setting means for setting the distance measuring frame at the average gazing point calculated by the calculating means, and control means for controlling the size of the distance measuring frame set by the setting means according to the focal length. A magnetic recording and photographing device characterized in that
JP26947491A 1991-10-17 1991-10-17 Magnetic recording and photographing apparatus and focus control apparatus and method Expired - Fee Related JP3290450B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP26947491A JP3290450B2 (en) 1991-10-17 1991-10-17 Magnetic recording and photographing apparatus and focus control apparatus and method
US08/490,515 US5594500A (en) 1991-10-17 1995-06-14 Image pickup apparatus
US08/730,298 US6094222A (en) 1991-10-17 1996-10-11 Image pickup apparatus using eye point dispersion in focus control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26947491A JP3290450B2 (en) 1991-10-17 1991-10-17 Magnetic recording and photographing apparatus and focus control apparatus and method

Publications (2)

Publication Number Publication Date
JPH05110925A true JPH05110925A (en) 1993-04-30
JP3290450B2 JP3290450B2 (en) 2002-06-10

Family

ID=17472948

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26947491A Expired - Fee Related JP3290450B2 (en) 1991-10-17 1991-10-17 Magnetic recording and photographing apparatus and focus control apparatus and method

Country Status (1)

Country Link
JP (1) JP3290450B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6191819B1 (en) * 1993-12-21 2001-02-20 Canon Kabushiki Kaisha Picture-taking apparatus having viewpoint detecting means
JP2004056335A (en) * 2002-07-18 2004-02-19 Sony Corp Information processing apparatus and method, display apparatus and method, and program

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6191819B1 (en) * 1993-12-21 2001-02-20 Canon Kabushiki Kaisha Picture-taking apparatus having viewpoint detecting means
JP2004056335A (en) * 2002-07-18 2004-02-19 Sony Corp Information processing apparatus and method, display apparatus and method, and program

Also Published As

Publication number Publication date
JP3290450B2 (en) 2002-06-10

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