JP2001257927A - Object tracking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an object tracking device by which a telephotographic camera can easily be controlled and manufactured. SOLUTION: A wide-angle camera 5 and a telephotographic camera 10 are arranged side by side. A position detecting means 15 is provided for detecting the position of the right eye of a human figure in the image of the wide-angle camera 5. A photographic range change means 20 is provided for linking the wide-angle camera 5 and the telephotographic camera 10. When the human figure is photographed by the wide-angle camera 5, the photographic range change means 20 is moved to the prescribed position of the image of the wide-angle camera 5 and a position for photographing the right eye of the human figure in the image center part of the telephotographic camera 10 on the basis of position information detected by the position detecting means 15. The right eye of the human figure can be tracked and photographed by the telephotographic camera 10. When tracking and photographing the right eye of the human figure with the wide-angle camera 5 with the telephotographic camera 10, the camera 10 is easily controlled and also is easily manufactured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for performing personal identification based on, for example, the shape and position of a human iris pattern, eyes, nose, mouth, ears, etc. The present invention relates to a subject tracking device that captures and tracks a part.

[0002]

2. Description of the Related Art Conventionally, as this kind of subject tracking device, for example, a configuration described in Japanese Patent Application Laid-Open No. 10-137223 has been known.

In the subject tracking apparatus described in Japanese Patent Application Laid-Open No. 10-137223, when a subject enters a position where a wide-angle camera captures an image, a sensor senses the subject and activates the main body of the apparatus. Then, the subject is photographed by the wide-angle camera, and the position of the iris pattern (hereinafter, referred to as iris) of the right eye of the subject photographed by the wide-angle camera is searched. Move the telephoto camera based on this search result, magnify a specific part of the subject with this telephoto camera and shoot it at an appropriate position, analyze the image of the iris of the right eye of the subject taken with this telephoto camera, The personal identification of the subject can be performed. Further, in this subject tracking device, a telephoto camera is fixed, and a subject photographed by the wide-angle camera is photographed by the telephoto camera via reflection of a reflector.

[0004] As another prior art example, there is known a subject tracking apparatus having a configuration described in, for example, Japanese Patent Application Laid-Open No. 10-137225.

The subject tracking device described in Japanese Patent Application Laid-Open No. 10-137225 detects the position of an iris of the right eye of a subject in an image captured by the wide-angle camera when the subject is captured by the wide-angle camera. At the same time, the distance from the telephoto camera to the subject is detected by a sensor. Then, based on these detection results, the reflector is rotated, the right eye of the subject is magnified and photographed at an appropriate position by a telephoto camera by reflection of the reflector, and the right eye of the subject photographed by the telephoto camera is photographed. The iris image is analyzed, and the subject can be individually confirmed.

[0006]

However, Japanese Patent Application Laid-Open No. 10-137223 and Japanese Patent Application Laid-Open No. 10-13
The subject tracking device described in Japanese Patent No. 7225 captures an iris of the right eye of a subject photographed by a wide-angle camera at an appropriate position of an image of a telephoto camera, and photographs with a wide-angle camera in order to perform individual confirmation of the subject. It is necessary to create a conversion table for converting the amount of movement of the telephoto camera or the reflector using the position information of the iris of the right eye of the subject in the obtained image and the distance information from the sensor to the telephoto camera by the sensor. there were. Furthermore, in order to create this conversion table, it was necessary to consider the distortion of the lens of the wide-angle camera, the positional accuracy of the sensor and the camera, etc.
Since it is difficult to create a conversion table by a simple calculation, control of the telephoto camera is complicated.

In order to magnify the right eye iris of a subject photographed by the wide-angle camera at an appropriate position of the telephoto camera and photograph the iris, the telephoto camera or the reflector is separately provided from the wide-angle camera by a conversion table. Since it is necessary to move the camera over a wide range, there is a great possibility that accuracy may be insufficient when determining the movable angle of the telephoto camera or the reflector, or the performance may not be maintained due to aging. In this case, there is a problem that a large cost is required.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a subject tracking apparatus that can easily control and manufacture a telephoto camera.

[0009]

According to a first aspect of the present invention, there is provided an object tracking apparatus, comprising: a telephoto camera, a wide-angle camera, and a position detection means for detecting a position of a predetermined portion of an object in an image captured by the wide-angle camera. And, based on the position information of the predetermined part of the subject detected by the position detection means, control so that a predetermined part of the subject is photographed at a predetermined position in an image photographed by the wide-angle camera, And a photographing range changing means for changing a photographing range of the wide-angle camera and the telephoto camera to a position for photographing a predetermined part of a subject at a substantially central portion of an image photographed by the telephoto camera. is there.

In this configuration, the position detecting means detects the position information of the predetermined part of the subject in the image of the wide-angle camera, and based on the position information, the photographing range changing means,
The wide-angle camera and the telephoto camera are controlled so that a predetermined portion of the subject is photographed at a predetermined position in the image of the wide-angle camera, and the predetermined portion of the subject is photographed substantially at the center of the image of the telephoto camera. Change the range in conjunction. As a result, a predetermined portion of the subject photographed by the wide-angle camera is tracked and photographed by the telephoto camera using only the position information obtained by the position detection means. For example, a conversion table for controlling the wide-angle camera and the telephoto camera is created. No need. Therefore, control of the telephoto camera is facilitated, the configuration is simplified, and manufacturing is facilitated.

According to a second aspect of the present invention, in the object tracking device of the first aspect, the subject tracking device includes a distance detecting unit that detects a distance from the telephoto camera to the subject. The photographing ranges of the wide-angle camera and the telephoto camera are changed in conjunction with each other on the basis of the position information of the predetermined part of the subject detected by the distance detection and the distance information of the subject detected by the distance detecting means.

In this configuration, the predetermined part of the subject photographed by the wide-angle camera is determined based on the position information in the image of the wide-angle camera by the position detecting means and the distance information from the telephoto camera to the subject by the distance detecting means. The photographing range changing means changes the photographing ranges of the wide-angle camera and the telephoto camera in association with each other, and a photograph is taken substantially at the center of the image of the telephoto camera. For this reason, only the two pieces of information of the position information by the position detection means and the distance information by the distance detection means are used to control the photographing of a predetermined part of the subject at a predetermined position in the wide-angle camera. Since a predetermined portion of the subject is photographed at the approximate center of the image, control of the wide-angle camera and the telephoto camera becomes easy.

According to a third aspect of the present invention, in the subject tracking apparatus according to the first or second aspect, the photographing range changing means is arranged so that each of the optical axes is included in the same plane and is orthogonal to the same plane. The wide-angle camera and the telephoto camera arranged toward the same side are linked in parallel with a plane orthogonal to the same plane.

In this configuration, the respective optical axes are included in the same plane, and the photographing range of each of the wide-angle camera and the telephoto camera arranged toward the same side with respect to a plane perpendicular to the same plane is photographed. The range changing means changes the distance in parallel with a plane orthogonal to the same plane. Therefore, by directing the optical axis of the wide-angle camera and the optical axis of the telephoto camera to the same side, it becomes easy to change the shooting range of the wide-angle camera when tracking and photographing a predetermined part of the subject with the telephoto camera. Control becomes easy.

According to a fourth aspect of the present invention, in the object tracking apparatus of the third aspect, the photographing range changing means includes a plane orthogonal to each of the optical axis direction of the wide-angle camera and the optical axis direction of the telephoto camera. It is assumed that the wide-angle camera and the telephoto camera are linked in a direction parallel to this plane and orthogonal to each other.

In this configuration, the photographing range of each of the wide-angle camera and the telephoto camera is changed in a direction parallel to a plane orthogonal to the optical axis direction and orthogonal to each other. For this reason, the calculation when changing the shooting range of the wide-angle camera and the telephoto camera becomes easier, and the control becomes easier.

According to a fifth aspect of the present invention, in the subject tracking apparatus according to the third or fourth aspect, the photographing range changing means captures a predetermined portion of the subject with a wide-angle camera, and thereafter, the wide-angle camera and the telephoto camera. Directing the wide-angle camera and the telephoto camera in a direction different from the direction along the same plane including the respective optical axes such that a predetermined portion of the subject is located on the center line in the direction of movement in the image of the wide-angle camera. The wide-angle camera and the telephoto camera are interlocked along a plane including the optical axis of each of the wide-angle camera and the telephoto camera to a position where a predetermined part of the subject is photographed substantially at the center of the image of the telephoto camera. It is to let.

In this configuration, first, after the wide-angle camera has photographed a predetermined part of the subject, the photographing range changing means includes the optical axes of the wide-angle camera and the telephoto camera based on the position information by the position detecting means. The wide-angle camera and the telephoto camera are linked to each other in a moving direction different from the direction along the same plane such that a predetermined portion of the subject is located at the center in the moving direction in the image of the wide-angle camera. Next, when the distance detecting means is not provided, the wide-angle camera and the telephoto camera are linked along the same plane to a position where a predetermined part of the subject is photographed substantially at the center of the image of the telephoto camera. Therefore, even when only the position information by the position detecting means is used, by controlling the wide-angle camera and the telephoto camera in this way, the control when the wide-angle camera captures a predetermined part of the subject photographed by the telephoto camera is performed. It will be easier.

When a distance detecting means is provided, a predetermined portion of the subject is photographed at the center in the moving direction in the image of the wide-angle camera, and then, based on the distance information from the distance detecting means, the photographing range changing means. Moves the wide-angle camera and the telephoto camera along the same plane to a position where an image of a predetermined portion of the subject is photographed substantially at the center of the image of the telephoto camera. Therefore, the distance detecting means detects the distance information in a state where the predetermined portion of the subject is photographed at the center in the moving direction in the image of the wide-angle camera. For this reason, the telephoto camera more accurately tracks a predetermined part of the subject and shoots it more clearly.

According to a sixth aspect of the present invention, there is provided the subject tracking apparatus according to any one of the third to fifth aspects.
The optical axes of the wide-angle camera and the telephoto camera move on the same plane in at least one of the two directions interlocked by the photographing range changing unit.

In this configuration, the photographing change means includes:
When the optical axes of the wide-angle camera and the telephoto camera are shifted, they are shifted on the same plane in at least one of the two shifting directions. For this reason, calculation at the time of control when photographing a predetermined part of the subject at a predetermined position of the wide-angle camera becomes easier.

According to a seventh aspect of the present invention, in the object tracking apparatus according to any one of the first to third aspects,
The photographing range changing means changes the photographing direction by rotating the wide-angle camera and the telephoto camera in conjunction with each other.

In this configuration, the photographing range changing means rotates the wide-angle camera and the telephoto camera in conjunction with each other.
For this reason, the moving amount when changing the shooting range of the wide-angle camera and the telephoto camera is reduced as compared with the case where the shooting range changing unit shifts, not rotates, and changes the shooting range of each of the wide-angle camera and the telephoto camera. In addition, the size of the apparatus can be reduced, and the tracking speed can be improved.

According to an eighth aspect of the present invention, in the object tracking apparatus according to the seventh aspect, the wide-angle camera and the telephoto camera have the same first rotation with respect to one of two directions rotated by the imaging range changing means. A second rotating shaft which is rotatably supported by a shaft and which is separately provided in parallel with the other of the two directions rotated by the photographing range changing means. 1st axis of rotation and 2nd
Are arranged at positions where their respective axial directions are orthogonal to the optical axis directions of the wide-angle camera and the telephoto camera, respectively.

In this configuration, the wide-angle camera and the telephoto camera are rotatably supported in two directions orthogonal to the respective optical axis directions, and have the same first rotation in one rotation direction. The shaft is supported by a shaft, and is supported by a second rotating shaft which is provided separately in parallel with the other rotating direction.
Therefore, by rotating the wide-angle camera in the rotation direction supported by the first rotation axis, the telephoto camera is mechanically rotated in conjunction with the rotation. For this reason, the operation when tracking and photographing a predetermined portion of the subject with the telephoto camera is simplified, and the tracking operation with the telephoto camera at this time is also simplified.

According to a ninth aspect of the present invention, in the object tracking apparatus of the eighth aspect, the optical axes of the wide-angle camera and the telephoto camera are in a plane including a first rotation axis. It is arranged so as to face one side divided by the rotation shaft.

In this configuration, the optical axes of the wide-angle camera and the telephoto camera are arranged in a plane including the first rotation axis while being directed to one side divided by the first rotation axis. Thereby, the calculation at the time of control for tracking and photographing a predetermined portion of the subject becomes easier, and the tracking speed is further improved.

According to a tenth aspect of the present invention, in the subject tracking apparatus of the eighth or ninth aspect, after the photographing range changing means photographs a predetermined portion of the subject with a wide-angle camera, the predetermined portion of the subject is wide-angled. The camera is controlled so that it is located at the center in the moving direction when rotated by the first coaxial rotation axis in the image of the camera. The camera and the telephoto camera are rotated in association with each other about a second rotation axis.

In this configuration, first, after the wide-angle camera has photographed a predetermined portion of the subject, the predetermined portion of the subject is positioned on the first rotation axis in the image of the wide-angle camera based on the position information by the position detecting means. The photographing range changing means controls the rotation of the wide-angle camera and the telephoto camera by the first rotation axis so as to be at the center of the screen in the moving direction when the camera is rotated. Next, when the distance detecting means is not provided, the photographing range changing means moves the wide-angle camera and the telephoto camera to the position where the predetermined part of the subject is photographed substantially at the center of the image of the telephoto camera with the second rotation axis. Rotate in conjunction. For this reason, even if only the position information by the position detecting means is controlled, the tracking speed at the time of tracking and photographing a predetermined part of the subject photographed by the wide-angle camera at the approximate center of the image of the telephoto camera by controlling in this manner. Is improved.

When a distance detecting means is provided, a predetermined portion of the subject is photographed at the center of the screen in the moving direction when the image is taken by the first rotation axis in the image of the wide-angle camera, and then the distance is detected. The detecting means detects the distance information. For this reason, the telephoto camera more accurately tracks a predetermined part of the subject and shoots it more clearly.

According to an eleventh aspect of the present invention, in the object tracking device according to any one of the seventh to tenth aspects, the wide-angle camera is provided in two directions orthogonal to the optical axis direction of the wide-angle camera and orthogonal to each other. The telephoto camera is disposed along one of two directions in which the optical axis direction of the telephoto camera is the rotation axis direction of the wide-angle camera. A reflector that rotates in the two directions in conjunction with the rotation of the wide-angle camera, the reflector is located on the optical axis of the telephoto camera, and the reflecting surface of the reflector faces the telephoto camera. A predetermined portion of the subject photographed by the wide-angle camera is photographed by the telephoto camera by reflection of the reflector.

In this configuration, when the photographing range changing means rotates the reflector, a predetermined portion of the subject photographed by the wide-angle camera is photographed substantially at the center of the image of the telephoto camera due to the reflection by the reflection surface of the reflector. Be photographed. Therefore, by rotating the reflector without rotating the telephoto camera itself, the telephoto camera captures a predetermined portion of the subject,
In this case, the tracking speed is further improved, and the size of the apparatus can be reduced as compared with the case where the telephoto camera itself is rotated.

According to a twelfth aspect of the present invention, in the subject tracking apparatus according to any one of the second to eleventh aspects, the telephoto camera has a focus adjusting lens, and the telephoto camera is provided based on distance information obtained by distance detecting means. The camera further includes a focus adjusting unit that sets a position of a focus adjusting lens and focuses an image captured by the telephoto camera.

In this configuration, when the telephoto camera photographs a predetermined part of the subject, the focus adjustment means sets the position of the focus adjustment lens based on the distance information from the distance detection means, and To focus.
Therefore, when the wide-angle camera captures a predetermined portion of the subject, the telephoto camera captures a clear image focused by the focus adjustment unit. It will be easier.

According to a thirteenth aspect of the present invention, in the subject tracking device according to any one of the first to eleventh aspects, the telephoto camera includes a focus adjusting lens, and a predetermined portion of the subject photographed by the telephoto camera. Automatic focusing means for setting the position of the focus adjustment lens and focusing the image of the telephoto camera.

In this configuration, the automatic focusing means automatically sets the position of the focus adjusting lens and focuses the image of the telephoto camera. For this reason, the image of the telephoto camera becomes clearer, and the matching of the predetermined portion of the subject using the image of the telephoto camera becomes more accurate and easier.

According to a fourteenth aspect of the present invention, in the subject tracking apparatus according to any one of the second to eleventh aspects, the telephoto camera includes a focus adjusting lens, and a predetermined portion of the subject photographed by the telephoto camera. Automatic focusing means for setting the position of the focus adjustment lens with respect to and focusing on the image of the telephoto camera, and the distance detection means for the focus adjustment lens after focusing by the automatic focusing means. The distance from the telephoto camera to the subject is detected based on the position information.

In this configuration, the automatic focusing means automatically sets the position of the focus adjusting lens and focuses the image of the telephoto camera. For this reason, the image of the telephoto camera becomes clearer, and the matching of the predetermined portion of the subject using the image of the telephoto camera becomes more accurate and easier. Further, the distance detecting means detects the distance from the telephoto camera to the subject based on the position information of the focus adjustment lens when the image of the telephoto camera is focused. For this reason, since the distance detection by the distance detecting means becomes more accurate, the tracking accuracy when tracking and photographing a predetermined portion of the subject is further improved.

According to a fifteenth aspect of the present invention, in the subject tracking apparatus according to the thirteenth aspect or the fourteenth aspect, the automatic focusing means converts the image signal obtained when the subject is photographed by the telephoto camera into the image signal. The focus adjusting lens of the telephoto camera is moved to a position where the high-frequency component of the telephoto camera becomes maximum to focus the telephoto image of the telephoto camera.

In this configuration, the telephoto camera takes a picture of a predetermined part of the subject, so that the image signal of the image taken by the telephoto camera is automatically focused to a position where the high-frequency component in the image signal is maximized. The means moves the focus adjusting lens to focus the image of the telephoto camera. Therefore, the image of the telephoto camera becomes clearer, and individual confirmation of the subject using the image of the telephoto camera becomes easier.

According to a sixteenth aspect of the present invention, in the subject tracking apparatus according to any one of the first to fifteenth aspects, the telephoto camera includes a zoom magnification adjusting mechanism for enlarging and reducing an image captured by the telephoto camera. A size detecting means for detecting the size of a predetermined portion of the subject in an image taken by the telephoto camera; and the telephoto camera based on the size information detected by the size detecting means. And a zoom adjustment means for adjusting the size of the predetermined portion of the subject in the image of the telephoto camera to a predetermined size.

In this configuration, the size detection means detects the size of the predetermined portion of the subject in the image of the telephoto camera by photographing the predetermined portion of the subject with the telephoto camera. Then, based on the size information by the size adjusting means, the zoom adjusting means adjusts the zoom magnification adjusting mechanism of the telephoto camera, and the size of the predetermined portion of the subject in the image of the telephoto camera to a predetermined size. Adjust. For this reason, since the telephoto camera captures an image in which the predetermined portion of the subject is adjusted to the predetermined size by the zoom adjustment means, individual confirmation using the image of the telephoto camera becomes easier.

A subject tracking device according to a seventeenth aspect of the present invention is the subject tracking device according to any one of the first to sixteenth aspects, wherein a sub-position detecting device detects a position of a predetermined portion of the subject in an image captured by a telephoto camera. Means for changing the shooting range of the wide-angle camera and the telephoto camera based on the position information of the predetermined portion of the subject detected by the sub-position detecting means.

In this configuration, after the photographing range of the wide-angle camera and the telephoto camera is changed by the photographing range changing means in conjunction with each other, the position of the predetermined portion of the subject in the image of the telephoto camera is detected by the sub-position detecting means. . Next, based on the position information obtained by the sub-position detecting means, the shooting range of the wide-angle camera and the telephoto camera is changed again by the shooting range changing means. For this reason, the tracking accuracy at the time of tracking and photographing a predetermined portion of the subject at substantially the center of the image of the telephoto camera is further improved.

The subject tracking device according to the eighteenth aspect is the subject tracking device according to the seventeenth aspect, wherein a predetermined portion of the subject is located at a predetermined position in the image of the wide-angle camera based on the position information detected by the position detecting means. Telephoto-side imaging range change when a predetermined part of the subject is photographed at the approximate center of the image of the telephoto camera based on the wide-angle imaging range change information when the image is captured and the position information detected by the sub-position detection unit There is provided a correction means for changing the photographing range of the wide-angle camera and the telephoto camera based on the deviation information.

In this configuration, the wide-angle-side photographing range change information when a predetermined portion of the subject is photographed at a predetermined position in the image of the wide-angle camera based on the position information by the position detecting means, and the sub-position detecting means Correction means changes the photographing range of the wide-angle camera and the telephoto camera based on the deviation information from the telephoto-side photographing range change information when a predetermined portion of the subject is photographed at the approximate center of the image of the telephoto camera based on the position information. I do. For this reason, the shift caused by the change of the shooting range of the wide-angle camera and the telephoto camera by the shooting range changing means caused when the predetermined portion of the plurality of subjects is continuously tracked many times is corrected every time the predetermined portion of the subject is tracked. Since the correction is made by the means, a predetermined portion of the subject photographed by the wide-angle camera is accurately tracked and photographed by the telephoto camera at any time.
Therefore, it can be used accurately for a long time, and the durability is improved.

According to a nineteenth aspect of the present invention, in the subject tracking apparatus according to any one of the second to eighteenth aspects, the distance detecting means includes information of a photographable angle of the wide-angle camera and information of each of the wide-angle camera and the telephoto camera. Attachment position information, inclination information of the telephoto camera and the wide-angle camera when a predetermined part of the subject is photographed by the telephoto camera, and position information of the predetermined part of the subject in the image of the wide-angle camera. , To detect the distance from the telephoto camera to a predetermined part of the subject.

In this configuration, the photographable angle information of the wide-angle camera, the mounting position information of each of the wide-angle camera and the telephoto camera, and the inclination of the wide-angle camera and the telephoto camera in a state where the telephoto camera has photographed a predetermined part of the subject. The distance detecting means detects the distance from the telephoto camera to the predetermined part of the subject based on the information and the position information of the predetermined part of the subject in the image of the wide-angle camera. For this reason, the distance detection from the telephoto camera to the predetermined portion of the subject by the distance detection means becomes more accurate, and the telephoto camera more accurately and clearly captures the predetermined portion of the subject captured by the wide-angle camera. Further, for example, the distance can be detected without providing a distance detecting means such as a special distance sensor, so that the productivity is improved.

According to a twentieth aspect of the present invention, in the object tracking apparatus according to any one of the first to third and seventh to nineteenth aspects, the optical axes of the wide-angle camera and the telephoto camera are different from those of the wide-angle camera and the telephoto camera. At a position where it is assumed that a predetermined portion of the subject is to be imaged.

In this configuration, the optical axes of the wide-angle camera and the telephoto camera intersect at a position where it is assumed that a predetermined portion of the subject can be photographed by the wide-angle camera and the telephoto camera. A telephoto camera captures a predetermined portion of a subject with high probability. In addition, when a predetermined part of a subject is photographed at the center with a telephoto camera, the probability that the wide-angle camera also photographs the predetermined part at the approximate center of the image increases, and the wide-angle camera photographs the predetermined part at a predetermined position. In this case, the tracking range can be made uniform, and even if the subject moves, tracking is easy.

[0051]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of a first embodiment of the subject tracking device according to the present invention will be described below with reference to FIGS.

1 to 4, reference numeral 1 denotes a subject tracking device. The subject tracking device 1 includes a wide-angle camera 5 such as a CCD camera for capturing a wide-angle image. , For photographing, in particular, a person 6 as a specific subject. Further, as shown in FIG. 3, the wide-angle camera 5 is disposed so as to photograph the upper body of the person 6 at the lower central portion in the image.

At a position parallel to the wide-angle camera 5, as shown in FIG. 4, the right eye 7 as a predetermined part of the person 3 is photographed in a central portion of the image in a predetermined size.
Telephoto camera such as a CCD camera for taking telephoto images
Ten are arranged. The optical axis 10a of this telephoto camera 10 is
It is arranged in parallel with the optical axis 5a of the wide-angle camera 5 in the same direction. By rotating the wide-angle camera 5 and the telephoto camera 10 in association with each other, the right eye 7 of the person 6 photographed by the wide-angle camera 5 is telephoto. The camera 10 shoots. The telephoto camera 10 further includes a zoom magnification adjustment mechanism 11 for enlarging and reducing an image captured by the telephoto camera 10, and the zoom magnification adjustment mechanism 11 includes a telephoto camera.
A focus adjustment lens 12 is provided for focusing on the right eye 7 of the person 6 in the image taken by the subject 10.

Here, the object tracking device 1 is connected to a collation device (not shown) or the like.
When the telephoto camera 10 enlarges and shoots an iris pattern (hereinafter, referred to as an iris 13) of the right eye 7 of the person 6, the iris 13 of the person 6 is collated by a collation device. This is a device for confirming who the person 6 is.

The wide-angle camera 5 is connected so that the position information detected by the position detection means 15 for detecting the position of the right eye 7 of the person 6 in the image taken by the wide-angle camera 5 can be received. ing. The position detecting means 15 is followed by a photographing range changing means 20 for changing the photographing ranges of the wide-angle camera 5 and the telephoto camera 10 in association with each other so that the position information detected by the position detecting means 15 can be received. ing. The position detecting means 15 receives a video signal of an image captured by the wide-angle camera 5 and derives the video signal from the video signal.
Detects the position information of the right eye 7 of the person 6 in the photographed image, and sends the position information to the photographing range changing means 20.

The photographing range changing means 20 can receive the distance information detected by the distance detecting means 25 for detecting the distance from the telephoto camera 10 to the person 6 being photographed by the telephoto camera 10. It is connected. This distance detecting means
Reference numeral 25 denotes, for example, a distance sensor that generates infrared rays and detects the distance from the telephoto camera 10 to the person 6. Further, the distance detecting means 25 sends the distance information detected by the distance detecting means 25 to the photographing range changing means 20.
As shown in (a), the camera is mounted below the telephoto camera 10 in a state of being juxtaposed with the telephoto camera 10.

Further, the photographing range changing means 20 is based on the position information of the right eye 7 of the person 6 detected by the position detecting means 15 and the distance information of the person 6 detected by the distance detecting means 25. The control is performed such that the right eye 7 of the person 6 is photographed at a predetermined position in the image photographed by the wide-angle camera 5, that is, as shown in FIG. The photographing range of the wide-angle camera 5 and the telephoto camera 10 is changed to a position where the right eye 7 of the person 6 is photographed substantially at the center of the image of the camera 10. Here, the predetermined position in the image photographed by the wide-angle camera 5 is a position determined by calculating from the position information by the position detecting means 15 and the distance information by the distance detecting means 25.

The photographing range changing means 20 includes the wide-angle camera 5 and the telephoto camera 5 in which the respective optical axes 5a and 10a are included in the same plane and are disposed on the same side with respect to a plane orthogonal to the same plane. The camera 10 is interlocked in parallel with a plane orthogonal to the same plane, and a plane orthogonal to the optical axis 5a of the wide-angle camera 5 and the optical axis 10a of the telephoto camera 10 is assumed. The wide-angle camera 5 and the telephoto camera 10 are interlocked in directions parallel to each other and perpendicular to each other.

Further, after photographing the right eye 7 of the person 6 with the wide-angle camera 5, the photographing range changing means 20 sets the direction along the same plane including the optical axes 5a and 10a of the wide-angle camera 5 and the telephoto camera 10, respectively. The wide-angle camera 5 and the telephoto camera 10 are controlled in conjunction with each other so that the right eye 7 of the person 6 is positioned at the center in the direction of movement in the image of the wide-angle camera 5 in the direction of movement. The wide-angle camera 5 and the telephoto camera 10 are linked to each other along the plane including the optical axes 5a and 10a of the wide-angle camera 5 and the telephoto camera 10 at a position where the right eye 7 of the person 6 is photographed substantially in the center. Further, the photographing range changing means 20 shifts the optical axes 5a and 10a of the wide-angle camera 5 and the telephoto camera 10 on the same plane with respect to at least one of the two directions interlocked by the photographing range changing means 20. .

That is, the photographing range changing means 20 moves the wide-angle camera 5 and the telephoto camera 10 arranged side by side in the same direction in the vertical direction as the vertical direction, that is, the A direction shown in FIG. 2B, and in the horizontal direction as the horizontal direction, that is, in the C and D directions shown in FIG. 2B.

Here, FIG. 2B shows the positions of the optical axis 5a of the wide-angle camera 5, the optical axis 10a of the telephoto camera 10, the optical axis of the distance detecting means 25, and the person 6 shown in FIG. FIG. 4 is an explanatory diagram showing a relationship, in which a side view of the object tracking device 1 is compared with a front view of the person 6.

Further, as shown in FIG. 1, the photographing range changing means 20 includes a vertical drive unit 31 and a horizontal drive unit 32 which move the wide-angle camera 5 and the telephoto camera 10 in conjunction with each other in the vertical and horizontal directions. The vertical drive unit 31 and the horizontal drive unit 32 are connected to a control unit 33 that controls a change in the shooting range of the wide-angle camera 5 and the telephoto camera 10 by the vertical drive unit 31 and the horizontal drive unit 32, respectively. ing.

As shown in FIG. 2, the vertical drive unit 31 has a first base 35 slidably mounted vertically on a mounting surface 34 of an ATM of a bank, for example. Further, the horizontal drive unit 32 includes a second pedestal 37 slidably mounted on the surface 36 of the first pedestal 35 in the horizontal direction. The wide-angle camera 5 is fixed above the surface portion 38 of the second pedestal 37 with the optical axis 5a directed horizontally. The telephoto camera 10 is fixed below the surface 38 of the second pedestal 37 so that the optical axis 10a is parallel to the optical axis 5a of the wide-angle camera 5 and horizontal.

The control unit 33 is connected to the position detecting means 15 and the distance detecting means 25 so that the position information by the position detecting means 15 and the distance information by the distance detecting means 25 can be received. And this control unit
33 calculates the position information and the distance information sent from the position detection means 15 and the distance detection means 25, and, based on the calculation results, appropriately controls the wide-angle camera 5 and the telephoto camera 10 by the vertical drive unit 31 and the horizontal drive unit 23. Change the shooting range in conjunction with it.

Further, the telephoto camera 10 is a telephoto camera.
Reference numeral 10 is connected to focus adjustment means 40 for focusing an image to be shot. The focus adjustment means 40 is connected to the telephoto camera 10 and the distance detection means 25, respectively.
The distance information is received by the distance detecting means 25, the distance information is calculated, the position of the focus adjustment lens 12 of the telephoto camera 10 is set from the calculation result, and the right eye of the person 6 in the image photographed by the telephoto camera 10 is set. 7, the image of the telephoto camera 10 is focused.

The telephoto camera 10 is similar to the telephoto camera 10.
The zoom magnification adjusting mechanism 11 is connected to a zoom adjusting means 45 for adjusting the size of the right eye 7 of the person 6 in the image captured by the telephoto camera 10 to a predetermined size. The zoom adjusting means 45 adjusts the magnification of the zoom magnification adjusting mechanism 11 of the telephoto camera 10 to a small value in a state where the telephoto camera 10 does not photograph the right eye 7 of the person 6, and the telephoto camera 10 adjusts the right eye of the person 6 In the state where 7 was shot almost in the center,
Based on the distance information from the distance detecting means 25, the enlargement ratio of the zoom magnification adjusting mechanism 11 is adjusted so that the right eye 7 of the person 6 is enlarged and photographed to a predetermined size in the image of the telephoto camera 10. .

Next, the operation of the first embodiment will be described.

The person 6 is located at a position where the wide-angle camera 5 can shoot.
Is invaded by the wide-angle camera 5.

At this time, the position detecting means 15 detects the position coordinates of the right eye 7 of the person 6 in the image taken by the wide-angle camera 5. Then, the position information is sent to the control unit 33, and the control unit 33 calculates the position information.

Further, based on the calculation result of the control unit 33, the horizontal drive unit 32 appropriately shifts the second pedestal 37 in the horizontal direction, and the right eye 7 of the person 6 in the image captured by the wide-angle camera 5.
As shown in FIG. 3, when the horizontal coordinate of the image is the X coordinate, the left end is 0, and the right end is g, the control unit 33 performs feedback control at a position where the X coordinate becomes g / 2. Then, the shooting direction of the wide-angle camera 5 is shifted.

Further, with the shift of the wide-angle camera 5, the telephoto camera 10 is also interlocked to a position where the right eye 7 of the person 6 can be photographed on the horizontal center line of the image of the telephoto camera 10.

Next, the distance detecting means 25 obtains the distance L from the telephoto camera 10 to the person 6. At this time, since the vertical photographable angle θ of the image photographed by the wide-angle camera 5 is always constant, the perpendicular photographable range E of the wide-angle camera 5 with respect to the distance L is E = 2Ltan (θ / 2). As shown in FIG. 3, the vertical image width of the image captured by the wide-angle camera 5 is e.

Then, the direction of the optical axis 10a of the telephoto camera 10 mounted at a position separated by a distance H downward from the mounting position of the wide-angle camera 5, ie, the telephoto camera 1
In order to photograph the right eye 7 of the person 6 in the center of the image photographed by the camera 0, the similarity between the photographable range of the wide-angle camera 5 and the image photographed by the wide-angle camera 5 indicates that FIG. As shown in FIG. 3, E: H = e: h, that is, h =
(eH) / E = (eH) / {2Ltan (θ / 2)}.

Therefore, feedback control is performed by the control unit 33 so that the right eye 7 of the person 6 is photographed downward from the center of the image photographed by the wide-angle camera 5 by h calculated by the above calculation. The photographing range of the telephoto camera 10 is changed by the vertical drive unit 31 shifting the first pedestal 35, and the right eye 7 of the person 6 is photographed substantially at the center of the image of the telephoto camera 10.

Then, the size of the right eye 7 of the person 6 in the image taken by the telephoto camera 11 is set to a predetermined size.
The zoom adjusting means 45 adjusts the zoom magnification of the zoom magnification adjusting mechanism 11 based on the distance information from the distance detecting means 25.

Next, the distance information from the telephoto camera 10 to the person 6 detected by the distance detecting means 25, that is, the right eye 7
Based on the distance information up to, the focus adjustment means 40 sets the position of the focus adjustment lens 12 of the telephoto camera 10,
This image is focused on the right eye 7 of the person 6 photographed by the telephoto camera 10.

At this time, as shown in FIG. 4, the telephoto camera 10 captures an enlarged image of the right eye 7 of the person 6. Then, the video signal of the image of the right eye 7 of the person 6 captured by the telephoto camera 10 is sent to a collation device (not shown) or the like, and the iris 13 of the right eye 7 of the person 6 is collated using the collation device. Perform personal confirmation, etc.

The person 6 photographed by the wide-angle camera 5
Moves, the position detection means 15 detects the position information of the right eye 7 of the person 6 in the image taken by the wide-angle camera 5, the control unit 33 calculates the position information, and the The distance information to the person 6 is detected by the distance detecting means 25.

The position detecting means calculated by the control unit 33
The vertical drive unit 31 and the horizontal drive unit 32 are driven based on the calculation result of the position information by 15, and the shooting ranges of the wide-angle camera 5 and the telephoto camera 10 are appropriately changed.

At this time, the control unit 33 calculates the distance information from the distance detecting means 25, and from this calculation result, the telephoto camera 10
The zoom adjustment means 45 adjusts the zoom magnification of the zoom magnification adjustment mechanism 11 of the telephoto camera 10 so that the size of the right eye 7 of the person 6 in the image of FIG. The focus adjustment lens 12 is focused on the right eye 7 of the person 6 in the image captured by the telephoto camera 10. In this state, the moved person 6
The right eye 7 is tracked and magnified by the telephoto camera 10 and photographed.

As described above, in the first embodiment, the right eye 7 of the person 6 photographed by the wide-angle camera 5 is changed to the right eye 7 of the person 6 in the image of the wide-angle camera 5 by the position detecting means 15.
Based on the position information of the telephoto camera 10 and the distance information from the telephoto camera 10 to the person 6 by the distance detecting means 25,
Changes the shooting ranges of the wide-angle camera 5 and the telephoto camera 10 in an interlocking manner, and an image is shot substantially at the center of the image of the telephoto camera 10. Therefore, the right eye 7 of the person 6 photographed by the wide-angle camera 5
Can be tracked and photographed by the telephoto camera 10. It is connected to a collation device (not shown), and a telephoto camera 10 is connected to the collation device.
By capturing the iris 13 of the right eye 7 of the person 6 in the image captured by the user, the individual confirmation of the person 6 can be easily performed from the iris 13 information of the right eye 7 of the person 6.

Further, by changing the photographing ranges of the wide-angle camera 5 and the telephoto camera 10 in an interlocked manner,
The position information of the right eye 7 of the person 6 photographed by the wide-angle camera 5 is controlled to be a predetermined position based on the position information by the distance information 15 and the distance information by the distance detection means 25, and the telephoto camera 10 tracks the right eye 7 of the person 6. Since the wide-angle camera 5 shoots the right eye 7 of the person 6 based on the position information and the distance information of the right eye 7 of the person 6, the control can be easily performed when the telephoto camera 10 tracks the right eye 7 of the person 6. That is, based on the position information and the distance information of the right eye 7 of the person 6 photographed by the wide-angle camera 5, it is possible to create a conversion table and the like for controlling the telephoto camera 10 so that the telephoto camera 10 is photographed substantially at the center of the image. Since it becomes unnecessary, the configuration of the object tracking device 1 can be simplified, and the manufacturability can be improved.

Then, the wide-angle camera 5 and the telephoto camera 10
Are horizontally arranged on the second pedestal 37 in the same direction,
When the first pedestal 35 and the second pedestal 37 are moved in the vertical or horizontal direction by the vertical drive unit 31 and the horizontal drive unit 32, the photographing range is changed in an interlocked manner.

Further, by constantly tracking the person 6, even when the person 6 captured by the wide-angle camera 5 moves, the telephoto camera 10 easily tracks the right eye 7 of the person 6 and captures the image. I do. Therefore, the telephoto camera 10 can track the right eye 7 of the person 6 photographed by the wide-angle camera 5 over a wide range. Further, when a collation device or the like is connected, the personal confirmation of the person 6 can be further easily performed by using the image of the telephoto camera 10 photographing the iris 13 of the right eye 7 of the person 6. The trouble of confirming an individual can be simplified.

The wide-angle camera 5 and the telephoto camera 10
The vertical movement and the horizontal movement of the vertical drive unit 31 and the horizontal drive unit 32 are controlled by the control unit 33 by the first pedestal 35 and the second pedestal 36. To change the shooting range. As a result, the wide-angle camera 5
When the telephoto camera 10 enlarges and photographs the right eye 7 of the person 6 photographed by the user, the photographing range of the wide-angle camera 5 and the telephoto camera 10 can be easily changed. For this reason, when changing the photographing range of the wide-angle camera 5 and the telephoto camera 10, calculations can be made easier, and control can be made easier. Therefore, by using the image of the telephoto camera 10 photographing the right eye 7 of the person 6, the individual confirmation work of the person 6 can be easily performed.

The focus adjusting means 40 is provided with a focus adjusting lens of the telephoto camera 10 based on the distance information from the telephoto camera 10 to the person 6 by the distance detecting means 25.
The position of 12 is set, and the image of the telephoto camera 10 is focused on the right eye 7 of the person 6. For this reason, since the image captured by the telephoto camera 10 can be made clearer, the individual confirmation work of the person using the image of the telephoto camera 10 can be more easily performed.

Further, the zoom adjusting means 45 for adjusting the zoom magnification of the zoom magnification adjusting mechanism 11 to adjust the size of the right eye 7 of the person 6 in the image taken by the telephoto camera 10 to a predetermined size is provided. Connected to camera 10. For this reason, an image of the right eye 7 of the person 6 enlarged to a predetermined size by the zoom adjustment means 45 can be photographed by the telephoto camera 10. Therefore, the image of the telephoto camera 10 photographing the iris 13 of the right eye 7 of the person 6 can be used. The workability of the person 6 in the individual confirmation work can be further improved.

In the first embodiment, the configuration in which the shooting range of the wide-angle camera 5 and the telephoto camera 10 is changed in conjunction with the first pedestal 35 and the second pedestal 37 has been described. The present invention is not limited to such a configuration. For example, the shooting range of the wide-angle camera 5 and the telephoto camera 10 can be changed in conjunction with each other by rotating or moving a mirror or the like instead of the telephoto camera 10 itself. . Then, since the configuration for changing the photographing range of the wide-angle camera 5 and the telephoto camera 10 can be simplified, manufacturability of the body of the object tracking device 1 can be improved.

In the object tracking device 1, the telephoto camera 10 enlarges and photographs the right eye 7 of the person 6 photographed by the wide-angle camera 5, and the iris 13 of the right eye 7 of the person 6 is photographed by the telephoto camera 10. The configuration for confirming the individual of the person 6 has been described. In addition to the right eye 7 of the person 6, the left eye,
By tracking and enlarging a predetermined portion of the human body, such as the nose and ears, with the telephoto camera 10, the individual 6 can be identified.

Further, the wide-angle camera 5 and the telephoto camera 10
Has been described in the same direction and horizontally arranged on the surface portion 38 of the second pedestal 37. However, the present invention is not limited to such a configuration, and each of the wide-angle camera 5 and the telephoto camera 10 The wide-angle camera 5 and the telephoto camera 10 are connected to the second pedestal so that the optical axes 5a and 10a intersect at a position where the right eye 7 of the person 6 is assumed to be photographed by the wide-angle camera 5 and the telephoto camera 10. It can be attached to 37. Then, since the right eye 7 of the person 6 can be photographed by the wide-angle camera 5 and the telephoto camera 10 with high probability,
Telephoto camera 10 for right eye 7 of person 6 captured by wide-angle camera 5
The amount of movement when shooting with the camera is reduced, the tracking speed when tracking the right eye 7 of the person 6 can be accelerated, and the performance of the body of the object tracking device 1 can be improved.

Then, based on the position information by the position detecting means 15 and the distance information by the distance detecting means 25, the photographing range changing means 20 changes the photographing ranges of the wide-angle camera 5 and the telephoto camera 10 in conjunction with each other. Although described, it is not limited to such a configuration, for example,
It is also possible to adopt a configuration in which the photographing range changing means 20 changes the photographing ranges of the wide-angle camera 5 and the telephoto camera 10 in conjunction with each other based only on the position information from the position detecting means 15.

Then, when the wide-angle camera 5 photographs the right eye 7 of the person 6, the photographing range changing means 20 operates so that the right eye 7 of the person 6 becomes the center in the horizontal direction in the image of the wide-angle camera 5. The wide-angle camera 5 and the telephoto camera 10 are linked and controlled in the horizontal direction, and then the shooting range is changed in the vertical direction to the position where the right eye 7 of the person 6 is shot substantially in the center of the image of the telephoto camera 10. The means 20 changes the photographing ranges of the wide-angle camera 5 and the telephoto camera 10 as appropriate in conjunction with each other, so that the right eye 7 of the person 6 can track and photograph. For this reason, the body of the subject tracking device 1 can be made more compact.

Next, a second embodiment of the present invention will be described with reference to FIGS.

The subject tracking device 1 shown in FIGS. 5 to 11 is basically the same as the subject tracking device 1 shown in FIGS. 1 to 4, but differs from the subject tracking device 1 shown in FIGS. Size detection means 55 for detecting the size of the right eye 7
The automatic focusing means 60 extracts high-frequency components from the video signal of the image captured by the telephoto camera 10, changes the position of the focus adjustment lens 12 so that the level thereof is maximized, and focuses the image of the telephoto camera 10. Initialization means 65 for initializing the shooting directions of the wide-angle camera 5 and the telephoto camera 10; sub-position detection means 70 for detecting the position of the right eye 7 of the person 6 in an image taken by the telephoto camera 10; 5 and telephoto camera
And correcting means 73 for correcting the 10 photographing directions.

The telephoto camera 10 has a focus motor 75 for moving and setting the focus adjustment lens 12 of the telephoto camera 10 and a zoom for moving and setting the zoom magnification adjustment mechanism 11 of the telephoto camera 10. Motor 76
And a focus position sensor 77 for detecting the position of the focus adjustment lens 12.

Further, the focus motor 75 is connected to the automatic focusing means 60, and moves the position of the focus adjusting lens 12 based on an instruction from the automatic focusing means 60.

The zoom motor 76 is a zoom adjusting means.
The zoom magnification adjusting mechanism 11 is adjusted based on an instruction from the zoom adjusting means 45 to change the zoom magnification of the telephoto camera 10.

The focus position sensor 77 is connected to the distance detecting means 25.
It is connected to the distance detecting means 25 so that the position information detected by 77 can be received. The distance detecting unit 25 receives the position information of the focus adjustment lens 12 at the time of focusing by the automatic focusing unit 60 detected by the focus position sensor 77, and based on the position information, The distance to the right eye 7 is detected.

Then, based on the distance information by the distance detecting means 25 and the position information by the position detecting means 15 for detecting the position of the right eye 7 of the person 6 in the image of the wide-angle camera 5, the image of the wide-angle camera 5 The photographing range changing means 20 controls the direction of the optical axis 5a of the wide-angle camera 5 and the telephoto camera 10 so that the right eye 7 of the person 6 is photographed at a predetermined position calculated in.
And changes the direction of the optical axis 10a.

Further, the photographing range changing means 20 determines the position of the person 6 in the image of the telephoto camera 10 based on the position information of the right eye 7 of the person 6 in the image of the telephoto camera 10 detected by the sub position detection means 70. So that the position of the right eye 7 is in the center,
The wide-angle camera 5 and the telephoto camera 10 are rotated in the vertical and horizontal directions in conjunction with each other to change the shooting direction.

Further, the photographing range changing means 20 includes a vertical drive section 31, a horizontal drive section 32, and a control section 33. The vertical drive section 31 directs the wide-angle camera 5 and the telephoto camera 10 in the vertical direction. Vertical rotation motor 81 that rotates in conjunction with
Is provided. The horizontal drive unit 32 is provided with a horizontal rotation motor 82 that rotates the wide-angle camera 5 and the telephoto camera 10 in a horizontal direction in conjunction with each other.

Further, as shown in FIG.
Has a movable case 83 which rotates the wide-angle camera 5 and the telephoto camera 10 in a vertical direction in conjunction with each other, and furthermore, the horizontal drive unit 32 directs the wide-angle camera 5 and the telephoto camera 10 in the horizontal direction. It has a fixed case 84 that rotates in conjunction with it. This movable case 83 is a fixed case 84
The upper and lower surfaces of the movable case 83 are rotatably supported by a coaxial first rotary shaft 86 with respect to the inner upper and lower surfaces of the fixed case 84. Have been.

Further, in the movable case 83, the wide-angle camera 5 and the telephoto camera 10 are arranged with the optical axis 5a of the wide-angle camera 5 and the optical axis 10a of the telephoto camera 10 oriented in the same parallel direction. ing. In addition, the wide-angle camera 5 and the telephoto camera 10 are rotatably supported by separate second rotation shafts 87 on both inner side surfaces of the movable case 83.

Here, the wide-angle camera 5 and the telephoto camera 10
Each of the optical axes 5a and 10a is in a plane including the first rotation axis 86, and is disposed in the movable case 83 so as to face one side divided by the first rotation axis 86. .

Further, the wide-angle camera 5 and the telephoto camera 10
Both ends of a lever 88 as the vertical drive unit 31 are rotatably attached to the respective rear portions. By moving the lever 88 in the vertical direction, the wide-angle camera 5 and the telephoto camera 10 are moved to the second rotation axis.
At 87, the shooting direction is changed in conjunction with the vertical direction.

A moving screw 89 as the vertical drive unit 31 is attached to the lever 88. This moving screw
By moving 89 in the vertical direction, the lever 88 similarly moves in the vertical direction with this movement.
Further, a screw shaft 91 as a vertical drive unit 31 disposed along the vertical direction is attached to the moving screw 89.

Further, on the lower surface inside the movable case 83, a vertical rotation motor 81 is mounted. The vertical rotation motor 81 is gear-connected to the screw shaft 91, and the screw shaft 91 is rotated by activating the vertical rotation motor 81. Here, this screw shaft 91
Is changed by changing the motor rotation direction of the vertical rotation motor 81. And this screw shaft 91
With the rotation of, the moving screw 89 moves in the vertical direction, which is the vertical direction, and the shooting directions of the wide-angle camera 5 and the telephoto camera 10 are changed in the vertical direction in conjunction with each other.

A horizontal rotating motor 82 is mounted on the lower surface inside the fixed case 84. The horizontal rotating motor 82 is gear-connected to a first rotating shaft 86, and by activating the horizontal rotating motor 82,
83 rotates on the first rotation shaft 86 in the horizontal direction corresponding to the rotation direction of the horizontal rotation motor 82. Then, with the rotation of the movable case 83, the wide-angle camera 5 and the telephoto camera
The 10 shooting directions are changed to the left and right in conjunction with the horizontal direction.

Here, the photographing range changing means 20 captures the right eye 7 of the person 6 in the image of the wide-angle camera 5, and the right eye 7 of the person 6 moves the first rotation axis in the image of the wide-angle camera 5.
After controlling to be at the center in the rotation direction, that is, the movement direction when rotating at 86, the telephoto camera 10
The wide-angle camera 5 and the telephoto camera 10 are interlockedly rotated on the second rotation axis 87 to the position where the right eye 7 of the person 6 is photographed at the center of the image of FIG.

The size detection means 55 is connected to the control section 33 so that the size information from the size detection means 55 can be received by the control section 33. The position information of the right eye 7 of the person 6 in the image taken by the camera 5 and the focus position sensor 77 when the image of the telephoto camera 10 is focused by the automatic focusing means 60
In the state where the right eye 7 of the person 6 is photographed in the center of the image of the telephoto camera 10 based on the distance information to the person 6 by the distance detecting means 25 detected from the position information of the focus adjustment lens 12 by The size of the right eye 7 of the person 6 in the image of the telephoto camera 10 is detected.

The size information detected by the size detecting means 55 is sent to the control unit 33. Then, the size information is calculated by the control unit 33, and based on the calculation result,
The control unit 33 activates the zoom motor 76 by the zoom adjustment means 45 to adjust the zoom magnification adjustment mechanism 11 of the telephoto camera 10 to adjust the zoom magnification of the telephoto camera 10, and
Adjusts the size of the right eye 7 of the person 6 in the image to be photographed to a predetermined size.

Then, the automatic focusing means 60 is
Adjusts the position of the focus adjustment lens 12 of the telephoto camera 10 with respect to the right eye 7 of the person 6 photographed by the user, and focuses the image of the telephoto camera 10. That is, this automatic focusing means
Reference numeral 60 denotes a state in which the telephoto camera 10 captures the right eye 7 of the person 6 and activates the focus motor 75 from the image signal of the telephoto camera 10 to a position where the level of the high-frequency component in the image signal is maximized. The position of the focus adjustment lens 12 is set, and the image of the telephoto camera 10 is focused.

Further, the initialization means 65 outputs the right eye 7 of the person 6
The initial shooting directions of the wide-angle camera 5 and the telephoto camera 10 when the camera is not shot are stored, and when the tracking or collation of the person 6 is completed, the shooting directions of the wide-angle camera 5 and the telephoto camera 10 are returned to the initial state. That is, it is provided for initialization. The initialization means 65 includes a vertical sensor 93 for detecting the vertical rotation positions of the wide-angle camera 5 and the telephoto camera 10, and a horizontal sensor for detecting the horizontal rotation positions of the wide-angle camera 5 and the telephoto camera 10.
94.

The sub-position detecting means 70 is connected to the control section 33 so that the position information from the sub-position detecting means 70 can be received by the control section 33. If the right eye 7 of the person 6 is shifted from the center of the image of the telephoto camera 10 when the right eye 7 of the person 6 is controlled by the photographing range changing means 20 so that the right eye 7 of the person 6 is photographed at a predetermined position, The position of the right eye 7 of the person 6 in the image of the camera 10 is detected.

The position information detected by the sub position detecting means 70 is sent to the control unit 33. Then, the control unit 33 calculates the position information, and based on the calculation result, the control unit 33 controls the vertical drive unit 31 and the vertical drive unit 31 so that the position of the right eye 7 of the person 6 in the image of the telephoto camera 10 is located at the center. The horizontal driving unit 32 is activated to change the shooting directions of the wide-angle camera 5 and the telephoto camera 10 in conjunction with each other.

Further, the correcting means 73 changes the wide-angle shooting range when the right eye 7 of the person 6 is shot at a predetermined position in the image of the wide-angle camera 5 based on the position information detected by the position detecting means 15. Based on the information and the positional information detected by the sub-position detecting means 70 based on the deviation information between the telephoto-side photographing range change information when the right eye 7 of the person is photographed in the approximate center of the image of the telephoto camera 10. Next, the next time the right eye 7 of the person 6 is tracked, the amount of change in the shooting range of the wide-angle camera 5 and the telephoto camera 10 is corrected.

Further, the correcting means 73 is
Is connected to the photographing range changing means 20 so that the detected deviation information can be received, the deviation information detected by the correction means 73 is received and calculated by the control unit 33, and the control unit 33 Controls the shooting range of the wide-angle camera 5 and the telephoto camera 10 using the vertical drive unit 31 and the horizontal drive unit 32, and the wide-angle camera 5 shoots when the telephoto camera 10 tracks and shoots the right eye 7 of the person 6. The position where the right eye 7 of the person 6 is converged is corrected, and the shift of the right eye 7 of the person 6 from the center of the image when the telephoto camera 10 captures the image is corrected.

Next, the operation of the second embodiment will be described.

When the person 6 enters the photographable area of the wide-angle camera 5, the wide-angle camera 5 photographs the person 6, and the position detection means 15 determines the position coordinates of the right eye 7 of the person 6 in the image of the wide-angle camera 5. To detect.

Then, based on the position information detected by the position detecting means 15, the control unit 33 activates the horizontal rotation motor 82, and the right eye 7 of the person 6 is photographed on the horizontal center line in the image of the wide-angle camera 5. In such a manner, the shooting direction of the wide-angle camera 5 is feedback-controlled. Thereby, the telephoto camera 10 is also linked, and the right eye 7 of the person 6 can be photographed on the horizontal center line even in the image of the telephoto camera 10.

Further, when the person 6 enters the photographable area of the wide-angle camera 5, the head of the person 6 is photographed above the image of the wide-angle camera 5 so that the head of the person 6 is photographed. Are arranged side by side below the horizontal. Then, the chest of the person 6 is photographed by the telephoto camera 10 in a state where the wide-angle camera 5 photographs the person 6.

At this time, the automatic focusing means 60 uses a telephoto camera.
From the image signal of 10, the focus motor 75 is activated to set the position of the focus adjustment lens 12 to a position where the high-frequency component in the image signal is maximized.
Focus the image.

[0123] Further, the distance detecting means 25 the position information of the focus adjusting lens 12 at this time is detected by the focus position sensor 77 detects the distance L ₃ from the telephoto camera 10 shown in FIG. 9 to the person 6 .

In order for the telephoto camera 10 to photograph the right eye 7 of the person 6 photographed by the wide-angle camera 5, the telephoto camera
10 perpendicular to the optical axis 10a upward right 7 of this person 6, i.e. a photographable range of the vertical angle camera 5 on S plane shown in FIG. 6 and E _2, the wide-angle camera 5 and the telephoto camera 10 , The rotation angle of the wide-angle camera 5 and the telephoto camera 10 in the vertical direction with respect to the horizontal direction is φ, the distance from the telephoto camera 10 to the right eye 7 of the person 6 is L, and the wide-angle camera When the photographable angle of vertical 5 and _{θ 2, E 2 = 2 ·} (L + D · sinφ) · tan (θ 2/2) next, · D from the center of the shooting range of the wide-angle camera 5 cos [phi = H This is a case where the right eye 7 of the person 6 is located _two lower positions.

The right of the person 6 photographed by the wide-angle camera 5
In order for the telephoto camera 10 to take an image of the eye 7, as shown in FIG.
Thus, the image width in the vertical direction taken by the wide-angle camera 5
To e ₂And in the image of the wide-angle camera 5
In the vertical direction from the heart to the right eye 7 of person 6 in this image
H₂Then, in the image of this wide-angle camera 5,
Is y = (e)₂/ 2) -h₂ This is a case where control is performed so that Further, E₂: H₂= E₂: H₂ Since the similarity relationship holds, h₂= (E₂・ H₂) / E₂ = (E₂・ D ・ cosφ) / ｛2 (L + D ・ sinφ) ・ tan (θ₂/ 2)｝.

[0126] Here, as shown in FIG. 9, when the photographed person 6, L ₃ is obtained as distance information to the person 6, wide-angle camera 5 and the telephoto camera 10 is directed downward from a horizontal direction Sensor 93 that the angle φ rotates ₃ times
In the image shown in FIG. 10, the position of the right eye 7 of the person 6 is determined from the image center in the vertical direction based on the information from
L = L ₃ and φ = φ ₃ were substituted, that is, h ₂ ′ = (e ₂ · D · cos φ ₃ ) / ｛2 (L ₃ + D · sin
_{φ 3) · tan (θ 2} /2)} h 2 ' , since a positive value, from the center of the image by _{h 2} of the lower _{(x = g 2/2,} y = e 2/2-h 2 Control starts to move to ').

[0127] Currently, coordinates eye 7 of a person 6 is photographed, i.e., a _{(x = g 2/2,} y = e 2/2 + h 3), the picture is taken above the image vertical center only _{h 3} ing.

Therefore, the wide-angle camera 5 and the telephoto camera 10 are controlled such that the wide-angle camera 5 captures the right eye 7 of the person 6 below this.

As a result, as shown in FIG. 9, the distance L ₃ and the rotation angle φ ₃ from the telephoto camera 10 to the person 6 are determined.
Is moved close gradually L and φ shown in FIG. 6, the position of the right eye 7 of a person 6 in an image angle camera 5 is photographed _{(x = g 2/2,} y = e 2/2-h 2) The right eye 7 of the person 6 is photographed at the center of the image photographed by the telephoto camera 10. Therefore, the right eye 7 of the person 6 photographed by the wide-angle camera 5 is photographed by tracking with the telephoto camera 10.

Thereafter, the size detecting means 55 uses a telephoto camera.
The size of the right eye 7 of the person 6 in the image of 10 is detected,
The size information of the right eye 7 of the person 6 by the size detection unit 55 is sent to the control unit 33 for calculation, and the control unit 33 activates the zoom motor 76 of the zoom adjustment unit 45 to adjust the zoom magnification of the telephoto camera 10. The position of the mechanism 11 is moved, and the size of the right eye 7 of the person 6 in the image captured by the telephoto camera 10 is adjusted to a predetermined size.

Then, the position of the focus adjustment lens 12 is set by activating the focus motor 75 from the image signal of the telephoto camera 10 to the position where the level of the high-frequency component in the image signal is maximized by the automatic focusing means 60. Then, the image of the telephoto camera 10 is focused.

Further, the accuracy of the interlocking of the wide-angle camera 5 and the telephoto camera 10 is deteriorated due to, for example, a change with time, and the right eye 7 of the person 6 is not photographed at the center of the image of the telephoto camera 10. There are cases. In this case, the position information of the right eye 7 of the person 6 in the image of the telephoto camera 10 detected by the sub-position detection means 70 is sent to the control unit 33 from the image of the telephoto camera 10 and calculated. Then, based on the calculation result, the control unit 33 controls the horizontal rotation motor 82 and the vertical rotation motor
Activate 81 and set the wide-angle camera 5 and the telephoto camera so that the right eye 7 of the person 6 is photographed in the center of the image of the telephoto camera 10.
Change the shooting direction of 10.

Then, the video output of the image of the telephoto camera 10 captured by tracking the right eye 7 of the person 6 is sent to a matching device or the like, and the iris of the right eye 7 of the person 6 is sent to the matching device.
13 is collated, and personal confirmation of the person 6 is performed.

Further, when the tracking and confirmation of the person 6 are completed, the vertical sensor 93 and the horizontal sensor 94 of the initializing means 65 use the horizontal and vertical rotational positions of the wide-angle camera 5 and the telephoto camera 10. Are detected, and the wide-angle camera 5 and the telephoto camera are
The shooting direction of the camera 10 is changed by the vertical drive unit 31 and the horizontal drive unit 32, and the shooting directions of the wide-angle camera 5 and the telephoto camera 10 are initialized.

When the telephoto camera 10 enlarges and photographs the right eye 7 of the person 6 at the center of the image, the position detecting means 15
Of the telephoto camera 10 based on the wide-angle shooting range change information when the right eye 7 of the person 6 is photographed at a predetermined position in the image of the wide-angle camera 5 based on the position information by The correction unit 73 stores information such as deviation information from the telephoto-side photographing range change information when the right eye 7 of the person is photographed substantially in the center of the image.

Then, the deviation information is sent from the correction means 73 to the control section 33, and the next time the wide-angle camera 5 shoots the person 6
The shooting range of the wide-angle camera 5 and the telephoto camera 10 is changed and controlled based on the position information of the right eye 7 of the
Corrects the position at which the right eye 7 of the person 6 converges in the image of the wide-angle camera 5 when tracking and photographing the right eye 7 of the person 6 so that the person 6 from the center of the image when the telephoto camera 10 captures the image. Of the right eye 7 can be corrected.

Further, based on the position information of the right eye 7 of the person 6 in the image of the wide-angle camera 5, the horizontal position of the right eye 7 of the person 6 is photographed on the horizontal image center line in the image of the wide-angle camera 5. After controlling using the driving unit 32, the vertical driving unit 31 vertically interlocks the wide-angle camera 5 and the telephoto camera 10 to change the shooting direction while focusing the image of the telephoto camera 10 by the automatic focusing unit 60. At this time, when the right eye 7 of the person 6 is photographed in the image of the telephoto camera 10, the right eye 7 of the person 6 is
Can be controlled so that the image is captured in the center of the screen of the telephoto camera 10.

As described above, in the second embodiment, the right eye 7 of the person 6 photographed by the wide-angle camera 5 is photographed by the telephoto camera 10 while tracking and enlarging it.
The same operation and effect as those of the object tracking device 1 shown in FIG.

Furthermore, the wide-angle camera 5 and the telephoto camera 10
Are rotated by a horizontal rotation motor 82 and a vertical rotation motor 81 in a horizontal direction and a vertical direction on a first rotation shaft 86 and a second rotation shaft 87 in conjunction with each other. For this reason, the physical wide-angle camera 5 is compared with the case where the shooting range of the wide-angle camera 5 and the telephoto camera 10 is changed by moving on the same plane.
In addition, since the moving amount of the telephoto camera 10 can be reduced, the tracking speed can be improved, and the body of the object tracking device 1 can be downsized.

The automatic focusing means 60 activates the focus motor 75 from the image signal of the telephoto camera 10 to a position where the high frequency component of the image signal is maximum, and sets the position of the focus adjustment lens 12. The image of the telephoto camera 10 is accurately focused. For this reason, the image of the telephoto camera 10 can be obtained more clearly, and the iris of the right eye 7 of the person 6 can be obtained.
By using the image of the telephoto camera 10 photographed by enlarging 13, the collation work of the person 6 can be performed more accurately and easily. Therefore, the processing speed of the collation work of the person 6 can be further accelerated, and the accuracy and performance of the subject tracking device 1 can be further improved.

Since the image of the telephoto camera 10 is accurately focused by the automatic focusing means 60, a clear image can be obtained. At this time, the focus adjustment lens 12 detected by the focus position sensor 77 can be obtained. The position information is sent to the distance detecting means 25, and the distance detecting means 25 is
Detects the distance from the telephoto camera 10 to the right eye 7 of the person 6. Therefore, telephoto cameras using infrared sensors
Compared to the case where the distance from 10 to the person 6 is detected, the distance from the telephoto camera 10 to the right eye 7 of the person 6 can be detected more accurately. Therefore, the person 6 photographed by the wide-angle camera 5
When the right eye 7 is photographed by the telephoto camera 10, the rotation of the wide-angle camera 5 and the telephoto camera 10 can be performed more accurately, so that the accuracy and performance of the subject tracking device 1 can be improved.

Further, the size detecting means 55 is a telephoto camera.
The size of the right eye 7 of the person 6 in the image captured by the camera 10 is detected, the zoom motor 76 is started by the control unit 33 and the zoom adjustment unit 45 to set the zoom magnification of the zoom magnification adjustment mechanism 11, and the telephoto camera is set. Right eye 7 of this person 6 in 10 images
Is adjusted to a predetermined size. For this reason, the right eye 7 of the person 6 photographed by the telephoto camera 10 can always be enlarged to a predetermined size and photographed, so that the individual confirmation of the person 6 from the image of the telephoto camera 10 can be made easier.

The automatic focusing means 60 activates the focus motor 75 from the image signal of the telephoto camera 10 to a position where the high-frequency component of the image signal is maximum, and sets the focus adjustment lens 12 to the image detection system. Position and focus the image of the telephoto camera 10. For this reason, since the image of the telephoto camera 10 can be more finely focused, by using the image of the telephoto camera 10 obtained by enlarging the iris 13 of the right eye 7 of the person 6, the collation operation of the person 6 can be performed more accurately. And easily. Therefore, the processing speed of the collation work of the person 6 can be further accelerated, and the accuracy and performance of the subject tracking device 1 can be further improved.

The wide-angle camera 5 and the telephoto camera 10
Is initialized in the direction in which it is assumed that the person 6 is imaged by the vertical sensor 93 and the horizontal sensor 94 of the initialization means 65 when the tracking and collation of the person 6 are completed. Therefore,
The person 6 can be more efficiently photographed by the wide-angle camera 5, and the right eye 7 of the person 6 photographed by the wide-angle camera 5 can be photographed without excessively changing the photographing directions of the wide-angle camera 5 and the telephoto camera 10. Can be taken. For this reason,
The work of tracking and photographing the person 6 and collating the person 6 from the iris 13 of the right eye 7 of the person 6 can be facilitated, and the performance of the subject tracking device 1 can be further improved.

In the case where the telephoto camera 10 photographs the right eye 7 of the person 6 at the center of the image of the telephoto camera 10, the arithmetic control is performed based on the image of the wide-angle camera 5. If not, the telephoto camera 10 is moved to the position where the right eye 7 of the person 6 is photographed at the center of the image of the telephoto camera 10 based on the position information by the sub-position detecting means 70.
Change the shooting range of.

Therefore, the right eye 7 of the person 6 is
Since the image can be photographed with higher precision at the center of the image, the collation work from the right eye 7 of the person 6 in the image of the telephoto camera 10 can be more easily performed.

Further, the shift information at this time is detected by the correction means 73, and this shift information is added in advance before the next tracking operation, so that the performance of tracking the right eye 7 of the person 6 can be improved. And the correction means 73 can maintain the performance even when a mechanical change with time or the like occurs.

In the second embodiment, the configuration in which the wide-angle camera 5 and the telephoto camera 10 are rotated in the horizontal direction and the vertical direction by the fixed case 84 and the movable case 83 has been described. The telephoto camera 10 can track the right eye 7 of the person 6 photographed by the wide-angle camera 5 and magnify the photographed image.

Further, by setting the zoom magnification of the telephoto camera 10 to a relatively small value before the wide-angle camera 5 captures the person 6, the telephoto camera 10 when the wide-angle camera 5 captures the person 6 can be obtained. Right eye 7 of this person 6 by
The right-eye 7 of the person 6 can be photographed more quickly in the image of the telephoto camera 10, and the sub-position detecting means 70
, The photographing range of the wide-angle camera 5 and the telephoto camera 10 can be easily changed.

The position of the focus adjusting lens 12 of the telephoto camera 10 can be set by the distance detecting means 25 using infrared rays, and further by the automatic focusing means 60. . With this configuration, the distance information from the telephoto camera 10 to the person 6 can be acquired more quickly, so that the speed at the time of tracking can be accelerated. Can be focused more clearly, so that the matching of the person 6 from the image of the telephoto camera 10 can be performed more accurately and easily.

The sub position detecting means 70 uses the telephoto camera 5
The center of the image as a right eye 7 of a person 6 is photographed, and seek h ₂ in the image of the wide-angle camera 5 shown in FIG. 7 at the time changing in conjunction photographing direction of the wide-angle camera 5 and the telephoto camera 10 . At this time, 2 · (L + Dsinφ) · tan (θ 2/2) = (e 2 · D · cos
Since phi) / _{h 2} and holds, L = _{[(e 2 · Dcosφ) / {} 2 · h 2 · tan (θ 2 /
2)｝]-D sinφ Therefore, the distance L from the telephoto camera 10 to the person 6
When the position of the focus adjustment lens 12 is moved in accordance with this L and set to the value of the position information detected from the focus position sensor 77, a system without a distance sensor or an automatic focusing device is obtained. Telephoto camera 10
Image can be sharply focused.

Further, the wide-angle camera 5 and the telephoto camera 10
As shown in FIG. 11, the respective optical axes 5a and 10a are aligned with the right eye 7 of the person 6 by the wide-angle camera 5 and the telephoto camera 10.
The wide-angle camera 5 and the telephoto camera 10 can also be arranged so that they intersect at a position where it is presumed that images will be taken. With this configuration, when the right eye 7 is located at the intersection, the right eye 7 is photographed in the center of the images of both the wide-angle camera 5 and the telephoto camera 10, and the photograph is taken by the wide-angle camera 5. Control is performed so that the right eye 7 comes to the center.

As a result, the probability that the right eye 7 is photographed by the telephoto camera 10 increases, and control becomes easier. Further, when the right eye 7 is photographed by the wide-angle camera 5, the tracking range is vertically symmetrical and the balance is improved. Therefore, the wide-angle camera 5 and the telephoto camera 10 can photograph the right eye 7 of the person 6 with a high probability, and can easily track the person 6 even when the person 6 moves.

Further, the photographable angle information of the wide-angle camera 5 itself and the mounting position information of the wide-angle camera 5 and the telephoto camera 10 when the wide-angle camera 5 and the telephoto camera 10 are mounted on the mounting surface 34, respectively. Based on the tilt information of the telephoto camera 10 or the wide-angle camera 5 when the telephoto camera 10 photographs the right eye 7 of the person 6 and the position information of the right eye 7 of the person 6 in the image of the wide-angle camera 5, The distance detecting means 25 can be configured so that the distance from the camera 10 to the right eye 7 of the person 6 can be detected.

By configuring the distance detecting means 25 in this way, the distance from the telephoto camera 10 to the right eye 7 of the person 6 can be detected more accurately. For this reason, the right eye 7 of the person 6 photographed by the wide-angle camera 5 can be more accurately and sharply enlarged and photographed by the telephoto camera 10. Therefore, the performance of the subject tracking device 1 can be improved, and further, the individual confirmation work of the person 6 using the image of the telephoto camera 10 photographing the right eye 7 of the person 6 can be more easily performed. Further, for example, since distance detection can be performed without providing a special distance sensor or the like, manufacturability can be improved.

Next, a third embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG.

The subject tracking device 1 shown in FIG. 12 is basically the same as the subject tracking device 1 shown in FIGS. 5 to 11, but does not rotate the telephoto camera 10 itself.
By rotating the reflector 100 in conjunction with the wide-angle camera 5, the telephoto camera 10 enlarges and photographs the right eye 7 of the person 6 photographed by the wide-angle camera 5.

The wide-angle camera 5 is disposed above the first case 101 with the optical axis 5a of the wide-angle camera 5 oriented horizontally. Further, both side surfaces 102 of the wide-angle camera 5 rotate in a direction perpendicular to both side surfaces in the first case 101 on a second rotation axis 87 orthogonal to the optical axis 5a of the wide-angle camera 5. It is supported as much as possible. Further, the first case 101 is disposed in the second case 104, and the upper end surface of the first case 101 projects from an inner surface located on the upper side of the second case 104. The first rotating shaft 86 is rotatably supported in the horizontal direction. A first rotating body such as a pulley, for example, is coaxial with the second rotating shaft 87 and protrudes from the tip of the second rotating shaft 87 protruding from one side surface 102 of the wide-angle camera 5.
103 is fixed.

Further, the telephoto camera 10 is
The optical axis 10a is disposed along one rotation axis direction of the wide-angle camera 10. The telephoto camera 10 is fixed below the wide-angle camera 5 with the optical axis 10a of the telephoto camera 10 facing the wide-angle camera 5.

Further, below the case 101, a reflecting plate 100 as the photographing range changing means 20 is provided, and the reflecting plate 100 is provided on the first rotating shaft 86 with respect to both side surfaces in the case 101. It is supported by. Further, a reflection surface 105 for reflecting the incident light is formed on one side surface of the reflection plate 100, and the telephoto camera 10 captures the right eye 7 of the person 6 by the reflection by the reflection surface 105. It is arranged. Further, a second rotating body 106, such as a pulley, having an outer diameter twice as large as the outer diameter of the first rotating body 103 is fixed to one side of the reflecting plate 100 in the width direction. I have.

A vertical rotation motor 81 such as a tilt motor is mounted in the first case 101 and between the wide-angle camera 5 and the reflection plate 100. A vertical rotating body 10 which is rotated by activating the vertical rotating motor 81 is provided at the tip of the vertical rotating motor 81.
9 is coaxially fixed. And this vertical rotating body 1
A first endless body 107, such as a gear belt, is slidably stretched between 09 and the first rotating body 103,
Similarly, a second endless body 110 such as a gear belt is slidably extended between the vertical rotator 109 and the second rotator 106.

Here, the vertical rotating motor 81 is a vertical rotating body.
By rotating 109, the first endless body 107 and the third
The first rotating body 103 and the second rotating body 106 rotate through the endless body 108, and the wide-angle camera 5 and the reflecting plate 100 rotate in the vertical direction in conjunction with each other.

Further, a horizontal rotation motor 82 such as a pan motor is mounted behind the vertical rotation motor 81. A horizontal rotating body 111 is attached to the tip of the horizontal rotating motor 82. Also, this horizontal rotating body 111
, The third endless body 108 such as a gear belt rotates, and the first case 101 rotates the first case 101 with respect to the second case 104 through the rotation of the third endless body 108. It rotates in the horizontal direction around the axis 86, and rotates in the horizontal direction in conjunction with the wide-angle camera 5 and the reflector 100.

Next, the operation of the third embodiment will be described.

When the wide-angle camera 5 captures an image of the person 6, the horizontal rotation motor 82 and the vertical rotation motor 81 are started, and the right eye 7 of the person 6 is captured at the center of the image of the wide-angle camera 5, and the right eye 7 of the person 6 is captured. The first case 101 rotates in the horizontal direction with respect to the second case 104 to the position where the
00 and the wide-angle camera 5 rotate in the vertical direction, and the shooting directions of the wide-angle camera 5 and the telephoto camera 10 change.

At this time, when the wide-angle camera 5 rotates in the horizontal direction by the horizontal rotation motor 82, the reflection plate 100
The same angle as the wide-angle camera 5 is rotated. Further, when the wide-angle camera is rotated in the vertical direction by the vertical rotation motor 81, the outer diameter of the second rotating body 106 is changed to the first rotating body 1
Because it is twice as large as the outer diameter of 03,
Rotates by half the rotation angle of the wide-angle camera 5. Therefore, the telephoto camera 10 photographs the right eye of the person photographed by the wide-angle camera 5 at the center of the image.

As described above, in the third embodiment, the telephoto camera 10 tracks and enlarges the right eye 7 of the person 6 captured by the wide-angle camera 5 and shoots the same.
The same operation and effect as those of the object tracking device 1 shown in FIG.

Further, the telephoto camera 10 is fixed, and the right eye 7 of the person 6 photographed by the wide-angle camera 5 is photographed at the center of the image of the telephoto camera 10 via reflection by the reflector 100. For this reason, for example, when the structure of the telephoto camera 10 is complicated and heavy, it is difficult to change the shooting direction by rotating the telephoto camera 10 itself. By adopting a configuration in which the right eye 7 of the person 6 is photographed, the configuration of the photographing range changing unit 20 can be simplified.
Therefore, the configuration of the subject tracking device 1 can be simplified, the size can be reduced, the manufacturability can be improved, and the tracking speed can be increased.

Further, when the wide-angle camera 5 is rotated by the vertical rotation motor 81, since the outer diameter of the second rotator 106 is twice as large as the outer diameter of the first rotator 103, the light is reflected. The plate 100 rotates by half the rotation angle of the wide-angle camera 5. Therefore, the person 6 photographed by the wide-angle camera 5
Since the control for photographing the right eye 7 by the telephoto camera 10 is mechanically simplified, the configuration of the object tracking device 1 can be simplified, and the manufacturability can be improved.

In the third embodiment, the configuration in which the wide-angle camera 5 is disposed so as to be rotatable in the vertical direction and the rotation direction has been described. However, the present invention is not limited to such a configuration. Instead, any configuration may be used as long as the wide-angle camera 5 is disposed so as to be rotatable in two directions including a torsional relationship that is orthogonal to the direction of the optical axis 5a of the wide-angle camera 5 and orthogonal to each other.

[0171]

According to the subject tracking apparatus of the present invention, a telephoto camera can be used to track and photograph a predetermined portion of a subject photographed by a wide-angle camera, using only the position information from the position detecting means. Further, since there is no need to create a conversion table for controlling the telephoto camera, the control of the telephoto camera can be facilitated, the configuration can be simplified, and the production can be facilitated.

According to the subject tracking apparatus of the second aspect,
In addition to the effect of the subject tracking device according to claim 1, a predetermined portion of the subject is photographed at a predetermined position in a wide-angle camera using only two pieces of information, that is, position information by a position detection unit and distance information by a distance detection unit. By performing such control, a predetermined portion of the subject can be photographed substantially at the center of the image of the telephoto camera, so that the control of the wide-angle camera and the telephoto camera can be made easier.

According to the subject tracking apparatus of the third aspect,
In addition to the effects of the subject tracking device according to claim 1 or 2,
By directing the optical axis of the wide-angle camera and the optical axis of the telephoto camera on the same side, it is possible to easily change the shooting range of the wide-angle camera when tracking and photographing a predetermined part of the subject with the telephoto camera, thereby improving control. Easy.

According to the subject tracking apparatus of the fourth aspect,
In addition to the effects of the object tracking device according to claim 3, in order to change the shooting range of each of the wide-angle camera and the telephoto camera in a direction parallel to a plane orthogonal to the optical axis direction and orthogonal to each other. When the photographing range of the wide-angle camera and the telephoto camera is changed, the calculation can be made easier, and the control can be made easier.

According to the subject tracking apparatus of the fifth aspect,
In addition to the effects of the subject tracking device according to claim 3 or 4,
In the case where the distance detecting means is not provided, the photographing range changing means is directed to a moving direction different from the direction along the same plane including the optical axes of the wide-angle camera and the telephoto camera based on the position information by the position detecting means. Then, after the wide-angle camera and the telephoto camera are linked so that the predetermined portion of the subject photographed by the wide-angle camera is the center in the moving direction in the image of the wide-angle camera, the predetermined By linking the wide-angle camera and the telephoto camera along the same plane to the position where the part is imaged, even when only the position information by the position detecting means is used, control when tracking and photographing a predetermined part of the subject can be performed. Can be easier.

When the distance detecting means is provided, the distance detecting means detects distance information in a state where a predetermined portion of the subject is photographed at the center in the moving direction in the image of the wide-angle camera. A predetermined part can be tracked more accurately with a telephoto camera, and a clearer image can be taken.

According to the subject tracking apparatus of the sixth aspect,
In addition to the effects of the subject tracking device according to any one of claims 3 to 5, when changing the optical axis of each of the wide-angle camera and the telephoto camera, the photographing change unit is on the same plane as at least one of the two transition directions. Since the upward movement is performed, the calculation at the time of control when photographing a predetermined portion of the subject at a predetermined position of the wide-angle camera can be more easily performed.

According to the subject tracking apparatus of the seventh aspect,
In addition to the effects of the object tracking device according to any one of claims 1 to 3, the shooting range changing means rotates the wide-angle camera and the telephoto camera in conjunction with each other. Compared with the case where the shooting range of each telephoto camera is changed, the amount of movement when changing the shooting range of the wide-angle camera and the telephoto camera can be reduced, so that the apparatus can be downsized and the tracking speed can be improved.

According to the subject tracking apparatus of the eighth aspect,
In addition to the effect of the subject tracking device according to claim 7, the wide-angle camera and the telephoto camera rotate the wide-angle camera with respect to the rotation direction supported by the first rotation axis, so that the telephoto camera is mechanically turned. Since the rotation is performed in conjunction, the operation when tracking and photographing a predetermined part of the subject can be simplified, and the tracking operation in this case can be simplified.

According to the subject tracking apparatus of the ninth aspect,
In addition to the effects of the subject tracking device according to claim 8, the first object is directed to one side divided by the first rotation axis.
By arranging the optical axis of each of the wide-angle camera and the telephoto camera in the plane including the rotation axis of, it is possible to more easily perform calculations when controlling to track and shoot a predetermined part of the subject and improve the tracking speed it can.

According to the subject tracking device of the tenth aspect, in addition to the effect of the subject tracking device of the eighth or ninth aspect, when the distance detecting means is not provided, it is based on the position information by the position detecting means. The photographing range changing means of the wide-angle camera and the telephoto camera may be arranged such that a predetermined portion of the subject being photographed by the wide-angle camera is located at the center of the screen in the moving direction when rotated about the first rotation axis in the image of the wide-angle camera. After controlling the rotation by the first rotation axis, the telephoto camera is moved to a position where a predetermined part of the subject is photographed substantially at the center of the image.
The shooting range changing means uses the wide-angle camera and the telephoto camera as the second
By interlocking the rotation with the rotation axis, the tracking speed when tracking and photographing a predetermined part of the subject can be improved even with only the position information by the position detection means.

When the distance detecting means is provided, a predetermined portion of the subject is photographed at the center of the screen in the moving direction when rotated about the first rotation axis in the image of the wide-angle camera. Since the distance detecting means detects the distance information, a predetermined portion of the subject can be tracked more accurately, and a clearer image can be taken.

According to the subject tracking apparatus of the eleventh aspect, in addition to the effects of the subject tracking apparatus of the seventh aspect, by rotating the reflector, a predetermined portion of the subject can be imaged by the telephoto camera. Since the photographing can be performed substantially at the center, the tracking speed at this time can be further improved, and the device can be made smaller as compared with the case where the telephoto camera itself is rotated.

According to the subject tracking apparatus of the twelfth aspect, in addition to the effect of the subject tracking apparatus of any of the second to eleventh aspects, the focus adjustment means may be provided while the telephoto camera has photographed a predetermined portion of the subject. Since the position of the focus adjustment lens is set based on the distance information from the distance detecting means to focus the image of the telephoto camera, a clear image focused by the focus adjustment means can be taken by the telephoto camera, and the image of the telephoto camera can be taken. Can be used to more easily collate a predetermined portion of a subject.

According to the subject tracking apparatus of the thirteenth aspect, in addition to the effect of the subject tracking apparatus of the first aspect, the automatic focusing means automatically sets the position of the focus adjusting lens. Since the image of the telephoto camera is focused on, the image of the telephoto camera can be sharpened, and the collation of a predetermined portion of the subject using the image of the telephoto camera can be performed more accurately and easily.

According to the fourteenth aspect of the present invention, in addition to the effects of the second aspect, the automatic focusing means automatically sets the position of the focus adjusting lens. Focuses the image of the telephoto camera, making it possible to sharpen the image of the telephoto camera, making it possible to more accurately and easily match a predetermined part of the subject using the image of the telephoto camera, and to focus the image of the telephoto camera. The distance detecting means detects the distance from the telephoto camera to the subject based on the position information of the focus adjustment lens at the time when the distance is detected, so that the distance detection by the distance detecting means can be more accurate, and the predetermined part of the subject can be tracked. Tracking accuracy at the time of shooting can be further improved.

According to the subject tracking device of the fifteenth aspect, in addition to the effect of the subject tracking device of the thirteenth or fourteenth aspect, an automatic focusing means is provided to a position where the high-frequency component in the image signal of the telephoto camera becomes maximum. Moves the focus adjusting lens to focus the image of the telephoto camera, so that the image of the telephoto camera can be made clearer, and the individual confirmation of the subject using the image of the telephoto camera can be made easier.

According to the subject tracking device of the sixteenth aspect, in addition to the effect of the subject tracking device of any one of the first to fifteenth aspects, the size of the predetermined portion of the subject in the image of the telephoto camera by the size detecting means is obtained. Based on the information
Since the zoom adjustment means adjusts the zoom magnification adjustment mechanism of the telephoto camera to adjust the size of the predetermined portion of the subject in the image of the telephoto camera to the predetermined size, the telephoto camera adjusts the predetermined portion of the subject to the predetermined size. In this way, it is possible to constantly photograph the enlarged image, and it is possible to more easily confirm the individual using the image of the telephoto camera.

According to the subject tracking device of the present invention, in addition to the effects of the subject tracking device of any one of the first to sixteenth aspects, after the shooting range of the wide-angle camera and the telephoto camera is changed by the shooting range changing means. Since the position of the predetermined portion of the subject in the image of the telephoto camera is detected by the sub-position detection means, and based on this position information, the shooting range of the wide-angle camera and the telephoto camera is changed in conjunction with the shooting range changing means. The tracking accuracy in tracking and photographing a predetermined part of the subject at the approximate center of the image of the telephoto camera can be improved.

According to the subject tracking apparatus of the eighteenth aspect, in addition to the effect of the subject tracking apparatus of any of the second to eighteenth aspects, a wide angle when the photographing range is changed based on the position information by the position detecting means. Side shooting range change information, based on the shift information between the telephoto side shooting range change information when the shooting range is changed based on the position information by the sub-position detection means,
Since the correction means changes the shooting range of the wide-angle camera and the telephoto camera, it is necessary to change the shooting range of the wide-angle camera and the telephoto camera by the shooting range changing means that occurs when a predetermined portion of a plurality of subjects is continuously tracked many times. The accompanying shift,
Each time a predetermined portion of the subject is tracked, correction can be performed by the correction means, and the predetermined portion of the subject can be accurately tracked and photographed as needed, so that the device can be used accurately over a long period of time and durability can be improved.

According to the object tracking device of the nineteenth aspect, in addition to the effects of the object tracking device of the second aspect, the photographable angle information of the wide-angle camera and the mounting of each of the wide-angle camera and the telephoto camera are provided. Location information,
Based on the tilt information of the wide-angle camera and the telephoto camera in a state where the telephoto camera has photographed a predetermined part of the subject, and the position information of the predetermined part of the subject in the image of the wide-angle camera, the distance detection unit detects the subject from the telephoto camera. In order to detect the distance to the predetermined part of the subject, the distance detection means detects the distance from the telephoto camera to the predetermined part of the subject more accurately, and the predetermined part of the subject photographed by the wide-angle camera is more accurately and clearly detected by the telephoto camera. Since the photographing can be performed and the distance can be detected without providing a distance detecting unit such as a special distance sensor, the manufacturability can be further improved.

According to the subject tracking apparatus of the twentieth aspect, in addition to the effects of the subject tracking apparatus of any one of the first to third and seventh to nineteenth aspects, at the position where it is presumed that a predetermined portion of the subject is photographed, Since the optical axes of the wide-angle camera and the telephoto camera intersect, the wide-angle camera and the telephoto camera can shoot a predetermined portion of the subject with high probability, and when the telephoto camera shoots a predetermined portion of the subject at the center, Even with a wide-angle camera, the probability that this predetermined part is photographed at the approximate center of the image can be increased, the tracking range when photographing the predetermined part at a predetermined position with the wide-angle camera can be made uniform, and further, the subject has moved Even in this case, tracking can be easily performed.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a subject tracking device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a situation where a subject is photographed by the subject tracking device. (A) Explanatory diagram showing a shooting range of a wide-angle camera and a telephoto camera. (B) Explanatory diagram showing an optical axis direction of a wide-angle camera and a telephoto camera.

FIG. 3 is an explanatory diagram showing a shooting state of a subject by the wide-angle camera.

FIG. 4 is an explanatory diagram showing a shooting state of a subject by the telephoto camera;

FIG. 5 is a block diagram showing a subject tracking device according to another embodiment of the present invention.

FIG. 6 is an explanatory diagram showing a situation where the subject is photographed by the subject tracking device. (A) Side view showing a shooting range of a wide-angle camera and a telephoto camera. (B) Explanatory diagram showing an optical axis of a wide-angle camera and an optical axis of a telephoto camera.

FIG. 7 is an explanatory diagram showing a shooting state of a subject by the wide-angle camera.

FIG. 8 is an explanatory diagram showing a shooting state of a subject by the telephoto camera.

FIG. 9 is an explanatory diagram showing a situation where a subject is photographed by the subject tracking device.

FIG. 10 is an explanatory diagram showing a shooting state of a subject by the wide-angle camera.

FIG. 11 is an explanatory diagram showing shooting directions of the wide-angle camera and the telephoto camera.

FIG. 12 is an explanatory diagram showing a situation where a subject is photographed by a subject tracking device according to still another embodiment of the present invention. (A) A partially cutaway side view showing a shooting range of a wide-angle camera and a telephoto camera. (B) Front view showing a wide-angle camera and a telephoto camera.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Subject tracking apparatus 5 Wide-angle camera 6 Person as a subject 7 Right eye as predetermined part 10 Telephoto camera 11 Zoom magnification adjustment mechanism 12 Focus adjustment lens 15 Position detection means 20 Photographing range change means 25 Distance detection means 40 Focus adjustment means 45 Zoom Adjusting means 55 Size detecting means 60 Automatic focusing means 70 Sub-position detecting means 73 Correcting means 86 First rotation axis 87 Second rotation axis 100 Reflector

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Claims (20)

[Claims] 1. A telephoto camera, a wide-angle camera, position detection means for detecting a position of a predetermined portion of a subject in an image taken by the wide-angle camera, and a predetermined position of the subject detected by the position detection means. Based on the position information of the part, control is performed such that a predetermined part of the subject is photographed at a predetermined position in the image photographed by the wide-angle camera, and in a substantially central part of the image photographed by the telephoto camera. An object tracking device, comprising: an imaging range changing unit that changes an imaging range of the wide-angle camera and the telephoto camera to a position where an image of a predetermined part of the object is captured. 2. An apparatus according to claim 1, further comprising a distance detection unit configured to detect a distance from the telephoto camera to the subject, wherein the imaging range changing unit includes: a position information of a predetermined portion of the subject detected by the position detection unit; 2. The subject tracking apparatus according to claim 1, wherein the photographing ranges of the wide-angle camera and the telephoto camera are changed in conjunction with each other based on the distance information of the subject detected by the camera. 3. The photographing range changing means includes: a wide-angle camera and a telephoto camera, each optical axis being included in the same plane and being disposed on the same side with respect to a plane orthogonal to the same plane, 3. The subject tracking device according to claim 1, wherein the subject tracking device is interlocked in parallel with a plane perpendicular to the object. 4. The photographing range changing means assumes a plane orthogonal to each of the optical axis direction of the wide-angle camera and the optical axis direction of the telephoto camera, and sets the wide-angle camera in a direction parallel to the plane and orthogonal to each other. The subject tracking apparatus according to claim 3, wherein the camera and the telephoto camera are linked. 5. A photographing range changing unit, after photographing a predetermined portion of a subject with a wide-angle camera, moving in a moving direction different from a direction along the same plane including the optical axes of the wide-angle camera and the telephoto camera. The wide-angle camera and the telephoto camera are controlled in conjunction with each other such that the predetermined portion of the subject is located on the center line in the moving direction in the image of the wide-angle camera, and the predetermined portion of the subject is approximately at the center of the image of the telephoto camera. The subject tracking apparatus according to claim 3 or 4, wherein the wide-angle camera and the telephoto camera are linked to each other along a plane including the optical axis of each of the wide-angle camera and the telephoto camera at a position where an image is captured. 6. The optical axis of each of the wide-angle camera and the telephoto camera moves on the same plane in at least one of two directions interlocked by the photographing range changing means. 5. The subject tracking device according to any one of 5. 7. The subject tracking apparatus according to claim 1, wherein the photographing range changing unit changes the photographing direction by rotating the wide-angle camera and the telephoto camera in conjunction with each other. 8. The wide-angle camera and the telephoto camera are rotatably supported by the same first rotation axis in one of two directions rotated by the photographing range changing means, and are rotated by the photographing range changing means. The first and second rotating shafts are rotatably supported by separate second rotating shafts provided separately from each other in the two directions. The first rotating shaft and the second rotating shaft have the respective axial directions as described above. The subject tracking apparatus according to claim 7, wherein the subject tracking apparatus is disposed at a position orthogonal to the optical axis direction of each of the wide-angle camera and the telephoto camera. 9. The optical axis of each of the wide-angle camera and the telephoto camera is in a plane including the first rotation axis, and is disposed to face one side divided by the first rotation axis. 9. The subject tracking device according to claim 8, wherein: 10. A photographing range changing means, after photographing a predetermined portion of a subject with a wide-angle camera, a moving direction when the predetermined portion of the subject rotates on a coaxial first rotation axis in an image of the wide-angle camera. Wherein the wide-angle camera and the telephoto camera are interlockedly rotated about a second rotation axis to a position where a predetermined portion of the subject is photographed substantially at the center of the image of the telephoto camera. 10. The subject tracking device according to claim 8, wherein: 11. A wide-angle camera is disposed so as to be rotatable in two directions orthogonal to the optical axis direction of the wide-angle camera and orthogonal to each other. The telephoto camera is configured such that the optical axis direction of the telephoto camera is the wide-angle camera. The photographing range changing means is provided along one of two directions, which is the direction of the rotation axis of the camera, and includes a reflector that rotates in the two directions in conjunction with the rotation of the wide-angle camera. The plate is located on the optical axis of the telephoto camera, the reflection surface of the reflection plate is disposed facing the telephoto camera, and a predetermined portion of a subject photographed by the wide-angle camera is reflected by the reflection plate. 11. The subject tracking device according to claim 7, wherein an image is taken by the telephoto camera. 12. The telephoto camera includes a focus adjustment lens, sets the position of the focus adjustment lens based on distance information from distance detection means, and focuses an image captured by the telephoto camera. The subject tracking apparatus according to claim 2, further comprising a focus adjustment unit. 13. A telephoto camera comprising a focus adjustment lens, wherein the focus adjustment lens is positioned with respect to a predetermined portion of a subject photographed by the telephoto camera, and an automatic focusing for focusing an image of the telephoto camera is performed. 12. The subject tracking apparatus according to claim 1, further comprising a focusing unit. 14. A telephoto camera comprising a focus adjusting lens, wherein the focus adjusting lens is positioned with respect to a predetermined portion of a subject photographed by the telephoto camera, and an automatic focusing for focusing an image of the telephoto camera is performed. A focusing unit, wherein the distance detecting unit detects a distance from the telephoto camera to a subject based on position information of the focus adjusting lens after focusing by the automatic focusing unit. Item 12. The subject tracking device according to any one of Items 2 to 11. 15. The automatic focusing means moves a focus adjusting lens of the telephoto camera from an image signal obtained when an object is photographed by the telephoto camera to a position where the high-frequency component in the image signal is maximized. 15. The subject tracking apparatus according to claim 13, wherein a telephoto image of the telephoto camera is focused by focusing. 16. A telephoto camera having a zoom magnification adjusting mechanism for enlarging and reducing an image taken by the telephoto camera, and detecting a size of a predetermined portion of a subject in the image taken by the telephoto camera. Based on the size information detected by the size detecting means, adjusting the zoom magnification adjusting mechanism of the telephoto camera, and determining the size of a predetermined portion of the subject in the image of the telephoto camera. 16. The subject tracking apparatus according to claim 1, further comprising a zoom adjusting unit that adjusts the zoom lens to a predetermined size. 17. A sub-position detecting unit for detecting a position of a predetermined portion of a subject in an image photographed by a telephoto camera, wherein the photographing range changing unit includes a sub-position detecting unit that detects a position of the subject detected by the sub-position detecting unit. 17. The subject tracking device according to claim 1, wherein an imaging range of the wide-angle camera and the telephoto camera is changed based on position information of a predetermined part. 18. A wide-angle side photographing range change information when photographing a predetermined portion of a subject at a predetermined position in an image of a wide-angle camera based on position information detected by the position detecting means, Based on the detected positional information, the photographing range of the wide-angle camera and the telephoto camera is determined based on the shift information from the telephoto-side photographing range change information when a predetermined portion of the subject is photographed at the approximate center of the image of the telephoto camera. 18. The subject tracking device according to claim 17, further comprising a correction unit that changes the subject. 19. A distance detecting means, comprising: a photographable angle information of a wide-angle camera; mounting position information of each of the wide-angle camera and the telephoto camera; and the telephoto camera when a predetermined portion of a subject is photographed by the telephoto camera. And detecting a distance from the telephoto camera to a predetermined portion of the subject based on tilt information of the wide-angle camera and position information of a predetermined portion of the subject in an image of the wide-angle camera. 19. The subject tracking device according to any one of claims 18 to 18. 20. The optical system according to claim 1, wherein the optical axes of the wide-angle camera and the telephoto camera intersect at a position where the wide-angle camera and the telephoto camera are assumed to photograph a predetermined part of the subject. 20. The subject tracking device according to any one of to 3 to 7 and 19.