JPH05130463A - Magnetic recording image pickup device - Google Patents

Abstract

PURPOSE:To prevent mis-input of various function entries by providing a function menu display means, a setting means and a command entry means so as to disable execution of a function corresponding to the function menu. CONSTITUTION:The device is provided with a function menu display means, a setting means and a command entry means. Then a function menu is displayed on a finder screen 102 of a view finder 101 by a display means and the entry of a command corresponding to the function menu displayed on the display means is enabled or disable by the setting means and when the command input is enabled by the setting means, a command corresponding to the function menu in matching with a noticed point is inputted by the input means. Thus, even when the finder screen 102 of the view finder 101 is hardly observed due to the input menu screen, the execution of the function corresponding to the function menu is made disable and when the operator does not observe the view finder 101 for monitoring, mis-input of various function entries is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording and photographing device having a viewfinder for a monitor.

[0002]

2. Description of the Related Art Conventionally, as a magnetic recording and photographing apparatus, a function menu is displayed on a viewfinder screen of a viewfinder for a monitor, and a gazing point is matched with the displayed function menu, and a function menu matching the gazing point is supported. Camera-integrated VTRs that perform functions have been proposed.

[0003]

However, even when the photographer's eyes are tired, the viewfinder screen of the viewfinder becomes difficult to see due to the input menu screen, or the battery level becomes low, etc. However, there is a problem that the function corresponding to the function menu cannot be disabled.

Further, when the operator does not look at the viewfinder for the monitor, for example, when the recorder is operated, various function inputs may be erroneously input.

An object of the present invention is to provide a magnetic recording / photographing apparatus which solves the above problems.

[0006]

The present invention is directed to a photoelectric conversion means for converting an optical signal from an object obtained through an optical system into an electric signal, and an object image based on the electric signal obtained by the photoelectric conversion means. In a magnetic recording and photographing apparatus having a viewfinder for a monitor displaying the image on a finder screen, display means for displaying a function menu on the finder screen of the viewfinder, and a command corresponding to the function menu displayed by the display means. It is characterized by further comprising: setting means for enabling or disabling the input of the command and input means for inputting a command corresponding to the function menu matching the gazing point when the command input is enabled by the setting means. ..

Further, according to the present invention, photoelectric conversion means for converting an optical signal from a subject obtained through an optical system into an electric signal, and a subject image on a viewfinder screen based on the electric signal obtained by the photoelectric conversion means. In a magnetic recording and photographing apparatus having a viewfinder for displaying, a setting means for enabling or disabling input of a command corresponding to a function menu displayed on the viewfinder screen of the viewfinder, and a function menu by the setting means When the corresponding command can be input, the function menu is displayed on the finder screen, and when it is impossible, the menu display control means for erasing the function menu displayed on the finder screen, and the menu display control means. When the function menu is displayed by, the command corresponding to the function menu that matches the gazing point is displayed. Characterized by comprising an input means for force.

Further, according to the present invention, photoelectric conversion means for converting an optical signal from a subject obtained through an optical system into an electric signal, and a subject image on a finder screen based on the electric signal obtained by the photoelectric conversion means. In a magnetic recording and photographing apparatus having a viewfinder for displaying and a recording means for recording the image signal from the photoelectric conversion means, a reproducing means for reproducing the image signal recorded by the recording means, and a viewfinder of the viewfinder. Display means for displaying a function menu on the screen and setting for enabling input of a command corresponding to the function menu displayed by the display means at the time of image recording by the recording means and not possible at the time of image reproduction by the reproducing means And means.

Furthermore, photoelectric conversion means for converting an optical signal from the subject obtained through the optical system into an electric signal,
In a magnetic recording and photographing apparatus having a viewfinder for displaying a subject image on a finder screen based on an electric signal obtained by the photoelectric conversion means, and a recording means for recording the image signal from the photoelectric conversion means, the recording means Reproducing means for reproducing the image signal recorded by the recording means, and a function menu displayed on the viewfinder screen of the viewfinder during image recording by the recording means, and the function displayed on the viewfinder screen during image reproduction by the reproducing means. A menu display control means for deleting the menu is provided.

[0010]

In the present invention, the function menu is displayed on the viewfinder screen of the viewfinder by the display means, the command corresponding to the function menu displayed by the display means is enabled or disabled by the setting means, and the command is set by the setting means. When the input is enabled, the command corresponding to the function menu matching the gazing point is input by the input means.

Further, in the present invention, the setting means enables or disables the input of the command corresponding to the function menu displayed on the viewfinder screen of the viewfinder, and the setting means enables the input of the command corresponding to the function menu. In the case where the function menu is displayed, the function menu is displayed on the finder screen by the menu display control means, and when disabled, the function menu displayed on the finder screen is erased by the menu display control means, and the function menu is displayed by the menu display control means. When displayed, the command corresponding to the function menu that matches the gazing point is input by the input means.

Further, the image signal recorded by the recording means is reproduced by the reproducing means, the function menu is displayed on the viewfinder screen of the viewfinder by the display means, and the command corresponding to the function menu displayed by the display means is input. The setting is enabled when the image is recorded by the recording unit, and disabled by the setting unit when the image is reproduced by the reproducing unit.

Further, the image signal recorded by the recording means is reproduced by the reproducing means, and when the image is recorded by the recording means, the function menu is displayed on the viewfinder screen of the viewfinder by the menu display control means, and the image is reproduced by the reproducing means. At the same time, the function menu displayed on the finder screen is erased by the menu display control means.

[0014]

Embodiments of the present invention will now be described in detail with reference to the drawings.

First Embodiment FIG. 1 shows a first embodiment of the present invention. This is an example of a camera-integrated VTR.

In FIG. 1, 101 is an electronic viewfinder (hereinafter referred to as EVF), and 102 is a finder screen.

ED is a line-of-sight detection device, which includes a photoelectric element array 6,
The infrared light emitting diodes 5a and 5b, the optical system 100, and the signal processing circuit 109 are included.

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 passes through the dichroic mirror 2 that transmits visible light and reflects infrared light, and also passes through the eyepiece 1 to be guided to the eye point E. The axis of the light incident on the eyepoint E from the finder screen 102 is the X axis (see FIG. 2).

The infrared light emitting diodes 5a and 5b are symmetrically arranged near the upper end of the eyepiece 1 on the side of the eyeball 201 with respect to the X axis, and the infrared light is located at the center of the eyeball 201 located near the eye point E. It is supposed to be incident. Eyeball 2
The infrared light from 01 passes through the eyepiece lens 1, is guided by the visible light transmitting / infrared light reflecting 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. It is orthogonal to the X-axis and it is a dichroic mirror 2.
The axis parallel to the axis of the light that is guided to the light receiving lens 4 and is incident on the photoelectric element array 6 is the Y axis, and the axis orthogonal to the plane including the X axis and the Y axis is the Z axis (see FIG. 2). .. Photoelectric element array 6
Has a plurality of photoelectric elements arranged on a straight line parallel to the Z axis.

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.

Reference numeral 112 denotes an ON / OFF switch, which makes a command input corresponding to a menu that matches the gazing point, that is, a line-of-sight input possible or impossible. The structure of the ON / OFF switch 112 is shown in FIG. As shown in FIG. 3, the voltage at the output terminal becomes 0 V when the switch 112 is in the ON state, that is, the voltage is almost equal to the reference voltage when the switch 112 is in the OFF state, that is. Become a voltage.

Reference numeral 110 denotes a line-of-sight input function processing circuit, which is turned on / off.
When the OFF switch 112 is turned off, the line-of-sight input is performed, and when it is turned on, the line-of-sight input is stopped.

FIG. 4 is a flow chart showing a 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 a direction parallel to the Z axis (see FIG. 5). 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. 6).
reference).

The rotation angle of the optical axis of the eyeball is detected by the eyeball optical axis detection circuit, and the image signal from the photoelectric element array 6 is -Y 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). An example of the output signal obtained from the row Yp 'of the photoelectric element column 6 is shown in FIG. Then, the imaging magnification β of the optical system is obtained from the interval | Zd′−Ze ′ | of the corneal reflection images (# 3). The image forming magnification β of the reflected image from the eyeball is on the photoelectric element array 6 because the interval between the corneal reflected images e and d changes in proportion to the distance between the infrared light emitting diodes 5a and 5b and the eyeball of the observer. It can be obtained by detecting the positions e ′ and d ′ of the re-imaged corneal reflection image. Then, the boundary 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 and d are re-imaged.
b ′ and Z2a ′ are detected (# 4), and the pupil diameter | Z2b′−Z2a ′ | on the row Yp ′ is calculated (# 5).

Usually, in the row Yp 'of the photoelectric element column 6 on which the corneal reflection image is formed, the photoelectric element column 6 having the pupil center C'is present.
7 is displaced from the row YO 'in the -Y direction in FIG. 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 far from row Yp '. Then, the boundaries Z1b ′, Z1 between the iris 23 and the pupil 24 on the row Y1 ′ of the photoelectric element column are set.
a'is detected (# 7), the boundary point (Z1a ', Y1'),
Boundary point (Z1b ', Y1'), boundary point (Z2a ', Yp
′) And the boundary point (Z2b ′, Yp ′), at least three points are used to determine the center position C ′ (Zc ′, Yc ′) of the pupil.

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).

[0027]

[Equation 1]

[0028]

[Equation 2]

However, δY 'is the 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.

Then, the eye discriminating circuit discriminates, for example, whether the observer's eye looking into the EVF 101 is right or left 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 (# 1).
1).

In this embodiment, the setting means is ON.
Although the example using the / OFF switch 112 has been described, FIG.
As shown in FIG. 3, an ON / OFF switch by the line of sight is provided outside the finder screen 102, the ON / OFF switch is turned ON / OFF by the line of sight, and it is possible or impossible to input a command corresponding to the displayed function menu. You may make it into that state.

When a command corresponding to the function menu can be input by the ON / OFF switch 112, the function menu is displayed on the finder screen 102 and the command corresponding to the function menu matching the gazing point is input. On the other hand, in the impossible state, the finder screen 10
The function menu displayed in 2 may be erased.

Second Embodiment FIG. 10 shows a second embodiment of the present invention.

In the figure, the same parts as those in FIG. 1 are designated by the same reference numerals. Reference numeral 112 denotes a shooting mode / view mode switch, which switches to either a shooting operation mode (so-called shooting mode) or a recorder operation mode (so-called viewing mode). A video camera operation control processing circuit 114 controls the operation of the video camera. Reference numeral 110 denotes a line-of-sight input function processing circuit, which enables line-of-sight input when the shooting mode is selected by the shooting mode / view mode switch 112, and disables line-of-sight input when the viewing mode is selected. .. 116
Is an EVF display processing circuit, which displays various function input menus on the finder screen 102 in the EVF 101. When line-of-sight input is impossible, the menu displayed on the finder screen 102 is erased, The gazing point is displayed based on the gazing point information.

In this embodiment, the shooting mode / view mode switching switch 112 is used as the setting means. However, as shown in FIG. 11, the shooting mode / view mode switch depending on the line of sight is displayed outside the viewfinder screen 102. The photographing mode / viewing mode switch may be turned on / off by the line of sight to enable or disable the input of the command corresponding to the displayed function menu.

When the photographing mode is set by the photographing mode / view mode switch, the viewfinder screen 102
It is also possible to display the function menu on the screen, input a command corresponding to the function menu that matches the gazing point, and, on the other hand, if the viewing mode is set, delete the function menu displayed on the finder screen 102.

[0037]

As described above, according to the present invention,
With the above configuration, it is possible to make it impossible to execute the function corresponding to the function menu.

Further, there is an effect that it is possible to prevent erroneous input of various function inputs when the operator does not look at the viewfinder for the monitor.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention.

FIG. 2 is a diagram showing an arrangement example of an optical system 100 shown in FIG.

3 is a diagram showing a configuration of an ON / OFF switch 112 shown in FIG.

FIG. 4 is a flowchart showing an example of a visual line detection procedure by a signal processing circuit 109.

FIG. 5 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.

FIG. 6 is a diagram showing an example of a position of a corneal reflection image on a plane including an X axis and a Y axis.

FIG. 7 is a diagram showing an example of a reflected image from an eyeball 201.

FIG. 8 is a diagram showing an example of output signals obtained from a row Yp ′ of a photoelectric element column.

FIG. 9 is a diagram showing an example of an ON / OFF switch according to the line of sight.

FIG. 10 is a block diagram showing a second embodiment of the present invention.

FIG. 11 is a diagram showing an example of a shooting mode / viewing mode switch according to the line of sight.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Eyepiece lens 2 Dichroic mirror 4 Light receiving lens 5a, 5b Infrared light emitting diode 6 Photoelectric element array 100 Optical system 101 Electronic viewfinder 102 Finder screen 109 Signal processing circuit 110 Eye-gaze input function processing circuit 112 ON / OFF switch 114 EVF display processing circuit 201 eye

Claims (4)

[Claims] 1. A photoelectric conversion means for converting a light signal from a subject obtained through an optical system into an electric signal, and a monitor for displaying a subject image on a finder screen based on the electric signal obtained by the photoelectric conversion means. In a magnetic recording and photographing apparatus having a viewfinder for use with a display means for displaying a function menu on the viewfinder screen of the viewfinder, and enabling or disabling of input of a command corresponding to the function menu displayed by the display means. A magnetic recording and photographing apparatus, comprising: a setting unit for inputting the command, and an input unit for inputting a command corresponding to a function menu that matches the gazing point when the command input is enabled by the setting unit. 2. A photoelectric conversion means for converting a light signal from a subject obtained through an optical system into an electric signal, and a view for displaying a subject image on a finder screen based on the electric signal obtained by the photoelectric conversion means. In a magnetic recording and photographing apparatus having a viewfinder, setting means for enabling or disabling input of a command corresponding to a function menu displayed on the viewfinder screen of the viewfinder, and a command corresponding to the function menu by the setting means. When the input is enabled, the function menu is displayed on the finder screen, and when disabled, the menu display control means for deleting the function menu displayed on the finder screen, and the function menu is displayed by the menu display control means. If displayed, enter the command corresponding to the function menu that matches the gazing point. A magnetic recording and photographing apparatus, characterized in that it has a step. 3. A photoelectric conversion means for converting a light signal from a subject obtained through an optical system into an electric signal, and a view for displaying a subject image on a finder screen based on the electric signal obtained by the photoelectric conversion means. A magnetic recording and photographing apparatus having a finder and a recording means for recording an image signal from the photoelectric conversion means, a reproducing means for reproducing the image signal recorded by the recording means, and a function menu on a viewfinder screen of the viewfinder. And a setting means for enabling the input of a command corresponding to the function menu displayed by the display means when the image is recorded by the recording means and not for inputting the image when the image is reproduced by the reproducing means. A magnetic recording and photographing device characterized in that 4. A photoelectric conversion means for converting an optical signal from a subject obtained through an optical system into an electric signal, and a view for displaying a subject image on a finder screen based on the electric signal obtained by the photoelectric conversion means. In a magnetic recording and photographing apparatus having a finder and a recording means for recording an image signal from the photoelectric conversion means, a reproducing means for reproducing the image signal recorded by the recording means, and an image recording means for recording an image signal by the recording means, A magnetic recording and photographing apparatus, comprising: a menu display control means for displaying a function menu on a viewfinder screen of a viewfinder and deleting the function menu displayed on the viewfinder screen when an image is reproduced by the reproducing means.