JP2001257928A - Object tracking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an object tracking device which easily controls the tracking and photographing of an object, is simple in its structure and is easily manufactured. SOLUTION: A half mirror 11 is provided for polarizing incident light. A wide-angle camera 23 is located on one central beam polarized by the half mirror 11 and a telephotographic camera 25 is arranged on the other central beam. When a human figure is photographed by the wide-angle camera 23, the position of the right eye of the human figure in the wide-angle image of the wide-angle camera 23 is detected by a position detecting means 35. On the basis of position information by means of the position detecting means 35, a photographic range change means 41 changes the photographic range of the wide-angle camera 23 and the telephotographic camera 25 to a position for photographing the right eye of the human figure on the center of the wide-angle image of the wide-angle camera 23. The right eye of the human figure to be photographed by the wide-angle camera 23 can be tracked and photographed by the telephotographic camera 25. Control for tracking and photographing the right eye of the human figure is facilitated, configuration is simplified and production is facilitated.

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.

[0003] In the subject tracking device described in Japanese Patent Application Laid-Open No. 10-137223, when a subject enters a position where a wide-angle camera can capture an image, a sensor detects the subject and the main body of the device is started. 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. Based on this search result, the telephoto camera is movable, a predetermined part of the subject is enlarged by the telephoto camera and photographed at an appropriate position, and the telephoto image of the iris of the right eye of the subject photographed by the telephoto camera is collated. , Perform personal confirmation of the subject. In addition, a telephoto camera is attached to the subject tracking device, and the 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.

In the subject tracking apparatus described in Japanese Patent Application Laid-Open No. H10-137225, when a wide-angle camera shoots an object, the position of the right eye of the object in a wide-angle image shot by the wide-angle camera is detected. The sensor detects the distance from the camera to the subject. Based on these detection results, the reflector is rotated, and the reflection of the reflector causes the telephoto camera to enlarge the right eye of the subject and photograph it at an appropriate position. The image of the iris of the right eye of the subject photographed by the telephoto camera Is checked to confirm the individual of the subject.

[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 is photographed by a wide-angle camera in order to photograph an iris of the right eye of the subject photographed by the wide-angle camera at an appropriate position of a telephoto image of the telephoto camera and to confirm an individual of the subject. Using the position information of the iris of the right eye of the subject in the wide-angle image, the distance information from the subject to the telephoto camera by the sensor, and the like, a conversion table for calculating a movable amount for moving the telephoto camera or the reflector is created. . Further, in order to create this conversion table, it is necessary to consider the distortion of the lens of the wide-angle camera, the positional accuracy of the sensor and the camera, and the like, so that an enormous adjustment is required for each product. Therefore, it takes time to create this conversion table.

Further, in order to enlarge the right eye iris of a subject photographed by the wide-angle camera to an appropriate position of the telephoto camera and photograph the iris, the telephoto camera or the reflector is separated from the wide-angle camera using a conversion table. In order to determine the movable angle of the telephoto camera or the reflecting plate, there is a high possibility that accuracy may be insufficient, and the performance may not be maintained due to aging.
There is a problem that a large cost is required for manufacturing.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and provides a subject tracking apparatus which can easily control a subject to track and photograph a predetermined portion thereof, has a simple structure, and is easy to manufacture. With the goal.

[0009]

According to a first aspect of the present invention, there is provided a subject tracking apparatus including a telephoto lens having a variable focal length and a telephoto lens capable of capturing a wide-angle image and a telephoto image. Position detecting means for detecting a position of a predetermined portion of the subject in the wide-angle image, and a position of the wide-angle image photographed by the photographing means based on position information of the predetermined portion of the subject detected by the position detecting means. A photographing range changing means for moving the photographing means to a position for photographing a predetermined part of the subject at substantially the center to change the photographing range of the photographing means.

In this configuration, a wide-angle image is photographed by the photographing means while changing the focal length of the telephoto lens, and a predetermined portion of the subject is photographed in the wide-angle image. The position is detected by the position detecting means. Next, the photographing range changing means moves the photographing means to a position where a predetermined part of the subject is photographed substantially at the center of the wide-angle image based on the position information by the position detecting means, and changes the photographing range of the photographing means. Thereafter, the focal length of the telephoto lens is changed, and a telephoto image is photographed by the photographing means. Therefore, only the three operations of changing the focal length of the telephoto lens, detecting the position of a predetermined part of the subject in the wide-angle image of the photographing unit by the position detecting unit, and changing the photographing range of the photographing unit by the photographing range changing unit are performed. Since the photographing is performed by tracking the predetermined portion of the subject photographed in the wide-angle image of the photographing device with the telephoto image of the photographing device, it is easy to control when the photographing device tracks the predetermined portion of the subject and photographing. ,
Since the structure is simple, the manufacturing is easy and inexpensive, and the individual confirmation of the subject using the telephoto image of the photographing means becomes easy.

According to a second aspect of the present invention, there is provided a subject tracking apparatus for separating light into incident light and reflected light, the light being split on the central light of one of the transmitted light and the reflected light. A wide-angle camera having a wide-angle lens provided with an axis, and a telephoto camera having a tele-lens provided with an optical axis on the other central light of the transmitted light and the reflected light separated by the spectral means. A photographing unit in which the wide-angle camera and the telephoto camera are arranged in a state where the optical axes of the wide-angle lens and the telephoto lens are aligned by the spectral unit; and a wide-angle image photographed by the wide-angle camera of the photographing unit. Position detecting means for detecting the position of the predetermined part of the subject in the camera, and photographing by the wide-angle camera based on the position information of the predetermined part of the subject detected by the position detecting means. To position for capturing a predetermined portion of the subject substantially at the center of the wide-angle image, those that comprise an imaging range changing means for changing the imaging range of the imaging unit by moving the imaging means.

With this configuration, when a subject enters a position where the wide-angle camera can capture an image, the wide-angle camera captures an image of the subject. At this time, the position detecting means detects the position of the predetermined part of the subject in the wide-angle image of the wide-angle camera. Then, based on the position information obtained by the position detecting means, the photographing range changing means moves the photographing means to a position for photographing a predetermined part substantially at the center of the wide-angle image, thereby changing the photographing range of the photographing means. In this state, the telephoto camera photographs a predetermined portion of the subject photographed by the wide-angle camera at the center of the telephoto image.
Therefore, since the optical axis of the wide-angle lens of the wide-angle camera coincides with the optical axis of the telephoto lens of the telephoto camera, a predetermined part of the subject photographed by the wide-angle camera is photographed in the center only by the position information by the position detecting means. Control, the telephoto camera also shoots a predetermined part of the subject at approximately the center,
Control for tracking a predetermined portion of the subject and telephotographing is easy. As a result, the structure is simple and the manufacturing is easy, and the wide-angle image of the wide-angle camera and the telephoto image of the telephoto camera can be obtained at the same time. It becomes easy to confirm the subject individually using the telephoto image of the subject.

According to a third aspect of the present invention, in the object tracking apparatus of the second aspect, the wide-angle lens and the telephoto lens have a common lens group.

In this configuration, the common lens group of the wide-angle lens and the telephoto lens is appropriately set, so that the wide-angle image and the telephoto image obtained by the photographing unit are focused. As a result, the structure of the photographing means becomes simpler, so that the size is reduced and the production becomes easier.

According to a fourth aspect of the present invention, in the subject tracking apparatus of the second or third aspect, the spectroscopic means separates incident light into infrared light and visible light.

In this configuration, since the spectroscopic means separates the incident light into infrared light and visible light, the optical axis of the telephoto lens is arranged on the center light of the infrared light separated by the spectroscopic means. Then, the subject's eyes are illuminated with infrared light that is not perceived by the subject. As a result, when the subject is photographed by the photographing means, no pain is given to the subject, and the telephoto image of the photographing means becomes clearer. Therefore, the tracking accuracy of the photographing means is improved, and individual confirmation of the subject using the telephoto image of the photographing means becomes easier.

According to a fifth aspect of the present invention, there is provided an object tracking apparatus, comprising: spectral means for splitting incident light into transmitted light and reflected light; and wide-angle incident light which is one of the transmitted light and reflected light split by the spectral means. A wide-angle lens having an optical axis disposed on the central light, a telephoto lens having an optical axis disposed on the central light of telescopic incident light, which is the other of the transmitted light and the reflected light separated by the spectral means, The central light is disposed on the central light of the wide-angle incident light after passing through the wide-angle lens and on the central light of the telescopic incident light after passing through the telephoto lens. A wide-angle light-shielding unit that is disposed on the center light of the wide-angle incident light between the light-synthesizing unit and the spectral unit and that transmits or blocks the wide-angle incident light;
A telephoto shielding unit that is disposed on the central light of the telephoto incident light between the light synthesizing unit and the spectral unit and transmits or blocks the telephoto incident light, and a center of light synthesized and output by the light synthesizing unit. An image sensor that is arranged on the light and captures a wide-angle image or a telephoto image; and the wide-angle lens and the telephoto lens are arranged in a state where the optical axes of the wide-angle lens and the telephoto lens are aligned by the spectral unit and the light combining unit. A photographing means provided, a position detecting means for detecting a position of a predetermined portion of the subject in a wide-angle image photographed by an image sensor of the photographing means, and the wide-angle light shielding portion transmitting the wide-angle incident light and The telescopic incident light is shielded by a telephoto shielding unit, and is detected by the position detection unit in a state where a predetermined portion of the subject is imaged in a wide-angle image of the imaging device of the imaging unit. Based on the position information of the predetermined part of the photographing body, the photographing means is moved to a position for photographing the predetermined part of the subject at substantially the center of the wide-angle image photographed by the image sensor, and the photographing range of this photographing means is changed A photographing range changing unit for shielding the wide-angle incident light with the wide-angle light shielding unit and transmitting the telescopic incident light with the telescopic light shielding unit to photograph the telephoto image with the image sensor. Things.

In this configuration, the telephoto light shielding portion blocks the telephoto incident light, and the wide angle light shielding portion transmits the wide angle incident light.
In this state, when a predetermined portion of the subject is photographed in the wide-angle image of the imaging device, the position of the predetermined portion of the subject in the wide-angle image of the imaging device is detected by the position detection unit. Next, based on the position information by the position detecting means, the photographing means is moved by the photographing range changing means to a position where a predetermined part of the subject is photographed substantially at the center of the wide-angle image of the image sensor, thereby changing the photographing range of the image sensor. . After that, since the optical axis of the wide-angle lens and the optical axis of the telephoto lens coincide with each other, the wide-angle light blocking unit blocks the wide-angle incident light, and the telephoto blocking unit transmits the telephoto-incident light.
As a result, the subject photographed in the wide-angle image of the imaging device is photographed while tracking the telephoto image of the imaging device. Therefore, it is possible to track and photograph a predetermined portion of the subject with the telephoto image of the image sensor only by using the position information of the subject by the position detecting means, so that the control at this time is facilitated, and the telephoto image of the image sensor is used. Individual confirmation of the subject becomes easy, and a wide-angle image and a telephoto image can be taken with one image sensor, so that the lens can be integrated and the configuration is simplified, and manufacturing is easy. become.

According to a sixth aspect of the present invention, in the object tracking apparatus of the fifth aspect, the wide-angle lens and the telephoto lens have a common lens group.

In this configuration, the common lens group of the wide-angle lens and the telephoto lens is appropriately set, so that the wide-angle image and the telephoto image of the photographing unit are focused. As a result, the structure of the photographing means becomes simpler, so that the size is reduced and the production becomes easier.

According to a seventh aspect of the present invention, in the subject tracking apparatus of the fifth or sixth aspect, the spectroscopic means separates incident light into infrared light and visible light.

In this configuration, when the optical axis of the telephoto lens is arranged on the center light of the infrared light separated by the spectral means,
The eyes of the subject are illuminated with infrared light that is not perceived by the subject. As a result, when the subject is photographed by the photographing means, no pain is given to the subject, and the telephoto image of the photographing means becomes clearer. Therefore, the tracking accuracy of the photographing means is improved, and individual confirmation of the subject using the telephoto image of the photographing means becomes easier.

According to an eighth aspect of the present invention, in the object tracking apparatus according to any one of the first to fifth aspects, the photographing range changing means includes the step of: When possible, in a state in which a predetermined portion of the subject is photographed again in the wide-angle image of the photographing unit, the photographing unit uses the photographing unit based on the position information of the predetermined portion of the subject detected by the position detecting unit. The photographing means is moved to a position for photographing a predetermined part of the subject at substantially the center of the wide-angle image to be photographed, thereby changing the photographing range of the photographing means.

In this configuration, after a predetermined portion of the subject is photographed in the wide-angle image of the photographing means, a telephoto image is photographed by the photographing means while the photographing range of the photographing means is changed by the photographing range changing means. When the subject moves,
When it becomes impossible to photograph a predetermined portion of the subject in the telephoto image of the photographing means, the photographing means enters a state of photographing a wide-angle image. In this state, the photographing range changing unit again makes it possible to photograph a predetermined portion of the subject in the wide-angle image of the photographing unit. Next, based on the position information obtained by the position detecting means, the photographing range changing means changes the photographing range of the photographing means to a position where a predetermined part of the subject is photographed substantially at the center of the wide-angle image of the photographing means. Thereafter, a telephoto image is shot by the shooting means, and a predetermined portion of the subject is shot substantially at the center of the telephoto image. For this reason, even if the predetermined part of the subject is not photographed once in the telephoto image of the photographing means, the predetermined part of the subject is photographed again in the telephoto image of the photographing means. This is simplified, and the tracking operation by the photographing means is ensured.

According to a ninth aspect of the present invention, in the object tracking apparatus according to any one of the first to fifth to eighth aspects, the photographing means comprises a predetermined interval between the wide-angle image and the telephoto image photographed by the photographing means. Is switched alternately.

In this configuration, since the photographing means switches between the wide-angle image and the telephoto image at predetermined intervals, the photographing means is always in a state equivalent to photographing the wide-angle image and the telephoto image. As a result, even when the subject moves, the tracking operation by the photographing means becomes more reliable.

According to a tenth aspect of the present invention, in the subject tracking apparatus according to any one of the first to ninth aspects, the photographing range changing means includes a movable reflecting portion having a reflecting surface, and the movable reflecting portion includes: The reflecting surface is arranged on the lens optical axis of the photographing unit with the reflecting surface facing the photographing unit, and the photographing range of the photographing unit is changed by the rotation of the movable reflection unit.

In this configuration, the photographing range of the photographing means is changed by rotating the movable reflector by the photographing range changing means. Therefore, compared to a case where the photographing means itself is rotated to change the photographing range of the photographing means, the photographing means can easily rotate when tracking and photographing a predetermined part of the subject, and the tracking speed is improved. In addition, the structure becomes simpler, so that the size is reduced and the manufacturing becomes easier.

According to an eleventh aspect of the present invention, in the subject tracking apparatus of the first aspect, the telephoto lens of the photographing means includes a zoom magnification adjusting mechanism, and the photographing is performed by the photographing means. Size detection means for detecting the size of a predetermined portion of the subject in the telephoto image,
The zoom magnification adjusting mechanism is set based on the size information of the predetermined portion of the subject detected by the size detecting means, and the size of the predetermined portion of the subject in the telephoto image of the photographing means is set to a predetermined size. Zoom adjusting means for adjusting the distance.

In this configuration, a predetermined portion of the subject photographed in the wide-angle image of the photographing means is photographed substantially at the center of the telephoto image of the photographing means, and then the size of the predetermined portion of the subject in the telephoto image is measured. Is detected by the size detecting means. Next, based on the size information from the size detecting means, the zoom adjusting means sets a zoom magnification adjusting mechanism of the telephoto lens, and adjusts a predetermined portion of the subject in the telephoto image of the photographing means to a predetermined size. For this reason, in the telephoto image of the photographing means, a predetermined portion of the subject is photographed in a predetermined size as needed, so that individual confirmation of the subject using the telephoto image of the photographing means becomes easier.

According to a twelfth aspect of the present invention, in the subject tracking apparatus according to any one of the first to eleventh aspects, the subject is photographed in a telephoto image of the photographing means.
Sub-position detection means for detecting the position of a predetermined portion of the subject in the telephoto image, the imaging range changing means, based on the position information of the predetermined portion of the subject detected by the sub-position detection means, The photographing range of the photographing means is changed to a position for photographing a predetermined part of the subject substantially at the center of the telephoto image photographed by the photographing means.

In this configuration, the position of the predetermined part of the subject in the telephoto image is determined by sub-positioning the predetermined part of the subject photographed in the wide-angle image of the imaging means in the telephoto image of the photographing means. The position detecting means detects. Next, the photographing range changing means changes the photographing range of the photographing means based on the position information from the sub position detecting means. As a result, the detection error of the position information by the position detecting means in a state where the predetermined part of the subject is photographed in the wide-angle image of the photographing means,
Since the sub-position detecting means corrects errors due to insufficient mechanical accuracy of each lens of the photographing means and the spectral means, the tracking accuracy by the photographing means is further improved. Therefore, individual confirmation of the subject using the telephoto image of the photographing means becomes easier. Further, when the subject moves, tracking can be performed using the sub-position detection information of the telephoto image.

According to a thirteenth aspect of the present invention, in the subject tracking apparatus according to any one of the first to twelfth aspects, there is provided an automatic focusing means for automatically focusing a telephoto image taken by the imaging means. Is what you are doing.

In this arrangement, the automatic focusing means automatically focuses the telephoto image of the photographing means at any time,
When a predetermined part of the subject is photographed in the wide-angle image of the photographing means, the photographing means photographs a telephoto image focusing on the predetermined part of the subject, so that individual confirmation of the subject using the telephoto image of the photographing means is easier. And be accurate.

According to a fourteenth aspect of the present invention, in the subject tracking device according to any one of the first to thirteenth aspects, a proximity sensor for sensing proximity of the subject to a photographable range of a wide-angle image photographed by the photographing means. Is provided.

In this configuration, the proximity sensor senses the proximity of the subject when the subject approaches the wide-angle image photographable range of the photographing means and moves the photographing means to a position where the subject is photographed in the wide-angle image of the photographing means. Is changed. For this reason, even if the subject cannot be photographed with the wide-angle image, the photographing unit photographs the subject with the wide-angle image, so that the tracking range of the photographing unit is further improved.

[0037]

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 is connected to a collation device (not shown) and the like. Iris pattern of right eye 4 as a predetermined part of person 3 (hereinafter referred to as iris 5)
Are collated by the collation device, and the identity of the person 3 is personally confirmed.

The subject tracking apparatus 1 includes a photographing means 21 capable of photographing a wide-angle image and a telephoto image.
The photographing means 21 is provided with an incident light 7 as an incident light.
Is provided with a half mirror 11 as spectroscopic means for dispersing the light into telephoto incident light 8 as reflected light and wide-angle incident light 9 as transmitted light over the entire band.

The photographing means 21 has a wide-angle lens 22 provided therein, and is arranged such that one of the light beams split by the half mirror 11, that is, the center light of the wide-angle incident light 9 is incident on the optical axis 22a of the wide-angle lens 22. And a wide-angle camera 23 for photographing the wide-angle image. The wide-angle camera 23 is a general video camera such as a CCD camera, for example, as shown in FIG.
The upper body of the person 3 is disposed at the lower center of the wide-angle image.

A telephoto lens 24 is provided at a position parallel to the wide-angle camera 23, and the other light split by the half mirror 11, that is, the center light of the telephoto incident light 8, is transmitted along the optical axis of the telephoto lens 24. A telephoto camera 25 that captures a telephoto image that is disposed so as to be incident on 24a is provided. In the telephoto camera 25, as shown in FIG. 4, when the wide-angle camera 23 photographs the right eye 4 of the person 3 at substantially the center of the screen, the optical axes 22a and 24a of the wide-angle lens 22 and the telephoto lens 24 match. For this reason, the right eye 4 of the person 3 is photographed in an enlarged manner substantially at the center of the telephoto image of the telephoto camera 25. The telephoto lens 24 of the telephoto camera 25 enlarges or reduces the angle of view of the telephoto image captured by the telephoto camera 25, and focuses the telephoto image captured by the telephoto camera 25.

Here, the wide-angle camera 23 and the telephoto camera 25
Are arranged such that the optical axes 22a and 24a of the wide-angle lens 22 and the telephoto lens 24 of the wide-angle camera 23 and the telephoto camera 25 are aligned by the half mirror 11.

The telephoto lens 24 has a zoom magnification adjusting mechanism 27 for adjusting the zoom magnification of a telephoto image captured by the telephoto camera 25.
The position of the telephoto camera 25 is changed by moving the internal lens groups in conjunction with each other to change the zoom magnification of the telephoto image. Further, the telephoto lens 24 is connected to a zoom motor 29 for moving the zoom magnification adjusting mechanism 27.

Further, the telephoto lens 24 has a focusing group 26 as a lens group for focusing a telephoto image captured by a telephoto camera 25.
It is connected to a focus motor 28 for setting the position by moving the position 26.

In the optical path of the telephoto-incident light 8 split by the half mirror 11, a mirror 31 is attached as a reflecting portion for bending the telephoto-incident light 8 by about 90 degrees. Then, in the optical path of the telephoto incident light 8 reflected by the reflecting surface 32 of the mirror 31, in a state where the center light of the telephoto incident light 8 is arranged to enter the optical axis 24 a of the telephoto lens 24,
A telephoto camera 25 is attached. Here, the optical axis 24a of the telephoto lens 24 is first reflected downward by the mirror 31 and bent by about 90 degrees, and further reflected by the half mirror 11 to be reflected by the optical axis 22a of the wide-angle lens 22 and the person 3 side. Matches. The mirror 31 is provided with the reflection surface 32 of the mirror 31 facing the telephoto camera 25 and the half mirror 11. Further, the mirror 31 allows the telephoto camera 25 to capture the entire photographable area photographed by the wide-angle camera 23.

The wide-angle camera 23 has position detecting means.
The position detecting means 35 receives a video signal of a wide-angle image captured by the wide-angle camera 23 and, based on the video signal, outputs the right eye 4 of the person 3 in the wide-angle image captured by the wide-angle camera 23. Is for detecting the position of.

Further, the wide-angle camera 23 and the telephoto camera 25
The half mirror is moved to a position where the right eye 4 of the person 3 is photographed at the center of the wide-angle image photographed by the wide-angle camera 23, based on the position information of the right eye 4 of the person 3 detected by the position detecting means 35. 11, moving the photographing means 21 composed of the wide-angle camera 23 and the telephoto camera 25, changing the photographing range of each of the wide-angle camera 23 and the telephoto camera 25, and photographing the right eye 4 of the person 3 at approximately the center of the telephoto image It is connected to a photographing range changing means 41 for causing the photographing range to be changed.

As shown in FIGS. 1 and 2, this photographing range changing means 41 changes the photographing ranges of the wide-angle camera 23 and the telephoto camera 25 in the vertical direction, that is, in the direction A shown in FIG. And a horizontal drive unit 43 for changing the shooting range of each of the wide-angle camera 23 and the telephoto camera 25 in the horizontal direction, that is, in the direction B shown in FIG. 2B. . Further, the vertical driving unit 42 and the horizontal driving unit 43 are connected to a control unit 44 which is a part of a photographing range changing unit 41 for controlling a change of a photographing angle of each of the wide-angle camera 23 and the telephoto camera 25. .

As shown in FIG. 2, on a mounting surface 45 of an ATM of a bank, for example, a first housing 46 which is a part of the photographing range changing means 41 is provided. It is attached with the opening horizontal, that is, facing the person 3 side. The first housing 46 includes a photographing range changing unit.
A second housing 47, which is a part of 41, is arranged with the opening of the second housing 47 in substantially the same direction as the opening of the first housing 46. The second housing 47 is provided with a first rotating shaft 48 which is a part of the photographing range changing means 41 whose upper and lower surfaces have the same axial direction with respect to the upper and lower surfaces of the first housing 46.
Is rotatably supported in the vertical direction. Further, inside the second housing 47, a third housing 49, which is a part of the photographing range changing means 41, is provided with an opening of the third housing 49. The parts are arranged in substantially the same direction. The third housing 49 is a photographing range changing means in which both sides have the same axial direction with respect to both sides of the second housing 47.
A second rotating shaft 50, which is a part of 41, is rotatably supported in the horizontal direction.

A wide-angle camera 23 is fixed below the inside of the third housing 49, and a telephoto camera 25 is fixed above the wide-angle camera 23 via a stay 51.
Further, a mirror 31 is fixed on the optical axis 24a of the telephoto lens 24, and the wide-angle lens 22 bent by the mirror 31 is provided.
The half mirror 11 is fixed at the intersection of the optical axis 22a of the lens and the optical axis 24a of the telephoto lens 24.

Further, below the inside of the second housing 47, a vertical rotation motor 56 which is a part of the vertical drive unit 42 constituting the photographing range changing means 41 is mounted. A vertical rotation gear 57, which is a part of the vertical drive unit 42, is coaxially fixed to one end of the second rotation shaft 50. The vertical rotation gear 57 rotates the third housing 49 in the vertical direction with respect to the second housing 47 by driving of the vertical rotation motor 56, and shoots the wide-angle camera 23 and the telephoto camera 25. Make the range change vertically.

A horizontal rotation motor 62, which is a part of a horizontal drive unit 43 constituting the photographing range changing means 41, is mounted above the inside of the first housing 46. A first horizontal rotating gear 63, which is a part of the horizontal driving unit 43, is coaxially fixed to an upper end of the first rotating shaft 48. Further, between the first horizontal rotating gear 63 and the horizontal rotating motor 62, a second horizontal rotating gear which is a part of the horizontal driving unit 43 is provided.
64 is rotatably attached to the first housing 46 in the circumferential direction.

Further, the first horizontal rotary gear 63 and the second horizontal rotary gear 64 are driven by the horizontal rotary motor 62 so that the first horizontal rotary gear 63 is rotated. With the rotation of 63, the second horizontal rotating gear 64 is rotated. Further, with the rotation of the second horizontal rotating gear 64, the second housing 47 is moved horizontally with respect to the first housing 46. The camera is rotated in the direction to change the shooting range of the wide-angle camera 23 and the telephoto camera 25 in the horizontal direction.

A size detecting means 71 is connected to the telephoto camera 25 and the control section 44. The size detecting means 71 takes a picture of the right eye 4 of the person 3 with the telephoto camera 25. The size of the right eye 4 of the person 3 in the telephoto image captured by the telephoto camera 25 is detected, and the control unit 44 receives the size information of the right eye 4 in the telephoto image.

Further, the telephoto camera 25 and the control unit 44 include:
A zoom adjusting means 75 is connected, and the zoom adjusting means 75 includes a zoom motor 29 provided in the telephoto camera 25. Then, the zoom adjustment unit 75 starts the zoom motor 29 based on the calculation result by the control unit 44 based on the size information detected by the size detection unit 71, and the telephoto camera 25 The zoom magnification adjusting mechanism 27 is set in position to adjust the zoom magnification, and the size of the right eye 4 of the person 3 in the telephoto image captured by the telephoto camera 25 is adjusted to a predetermined size.

Further, the telephoto camera 25 and the control unit 44 have a sub-position detecting means for detecting the position of the right eye 4 of the person 3 in the telephoto image in a state where the person 3 is photographed in the telephoto image of the telephoto camera 25. 81 is connected. The optical axis 22a of the wide-angle lens 22 and the optical axis 24a of the telephoto lens 24 are not sufficiently coincident with each other. When the photographing of the right eye 4 cannot be performed, the position information of the right eye 4 of the person 3 in the telephoto image of the telephoto camera 25 detected by the sub-position detecting means 81 is sent to the control unit 44, where the information is calculated. Then, the vertical rotation motor 56 and the horizontal rotation motor 62 are activated via the vertical drive unit 42 and the horizontal drive unit 43, and the person 3 is positioned substantially at the center of the telephoto image captured by the telephoto camera 25.
The second casing 47 and the third casing 49 are rotated to the position where the right eye 4 is photographed, and the photographing ranges of the wide-angle camera 23 and the telephoto camera 25 are changed in conjunction with each other.

In the telephoto camera 25, there is provided a focus motor 28 which is a part of the automatic focusing means 85 for setting the position of the focusing group 26 of the telephoto camera 25. Further, the automatic focusing means 85 includes a distance sensor 88 as a distance detecting means 87 which generates infrared light and detects a distance from the telephoto camera 25 to the person 3, and the distance sensor 88 is a wide-angle camera. 23 optical axes 22a and telephoto camera 2
The five optical axes 24a coincide with each other and are arranged below the half mirror 11 toward the optical axis 22a and the optical axis 24a, that is, the person 3.

Further, the automatic focusing means 85 includes a distance sensor 88
The focusing group 28 of the telephoto camera 25 is set by driving the focus motor 28 based on the distance information from the telephoto camera 25 to the person 3 detected at, and the telephoto camera 25 takes an image. The telephoto image is automatically focused on the right eye 4 of the person 3 and the like.

Further, a plurality of proximity sensors 91 for detecting the proximity of the person 3 to the wide-angle image capturing range captured by the wide-angle camera 23 are mounted on the mounting surface 45. The proximity sensor 91 is connected to the control unit 44, and detects the position information of the person 3 in a state where the proximity sensor 91 detects the proximity of the person 3, and transmits the detection information to the control unit 44. Then, the control unit 44 activates the wide-angle camera 23.

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

First, when the person 3 approaches the photographable area of the wide-angle camera 23, the proximity sensor 91 detects the approach of the person 3. Then, the position information of the person 3 is detected by the proximity sensor 91.

Then, the control unit 44 receives and calculates the position information of the person 3 from the proximity sensor 91, and based on the calculation result, the control unit 44 activates the vertical rotation motor 56 to turn on the third housing.
While rotating 49 in the vertical direction, the horizontal rotation motor 62 is started to rotate the second housing 47 in the horizontal direction. At this time, the wide-angle camera 23 and the telephoto camera 25
The right eye 4 of the person 3 is photographed in the wide-angle image of the wide-angle camera 23.

Next, the position detecting means 35 detects the position of the right eye 4 of the person 3 in the wide-angle image captured by the wide-angle camera 23. Then, the control unit 44 receives this position information and calculates it. Further, based on the calculation result by the control unit 44, the control unit 44 activates the vertical rotation motor 56 to rotate the third casing 49 in the vertical direction and activates the horizontal rotation motor 62. The second housing 47 is rotated in the horizontal direction, and the shooting ranges of the wide-angle camera 23 and the telephoto camera 25 are feedback-controlled.

At this time, by performing feedback control such that the right eye 4 of the person 3 is photographed at the center of the wide-angle image of the wide-angle camera 23, the optical axis 22a of the wide-angle lens 22 and the optical axis 24a of the telephoto lens 24 are aligned. Telephoto camera 2
The shooting range of the wide-angle camera 23 and the telephoto camera 25 is changed to a position where the right eye 4 of the person 3 is shot substantially at the center of the telephoto image shot at 5.

Further, as the person 3 moves, the right eye 4 of the person 3 is positioned at the center of the wide-angle image captured by the wide-angle camera 23.
Is not photographed, the position detection means 35 detects the position of the right eye 4 of the person 3 in the wide-angle image of the wide-angle camera 23 again.

Then, based on the position information from the position detecting means 35, the control unit 44 activates the vertical rotation motor 56 to rotate the third housing 49 in the vertical direction,
The horizontal rotation motor 62 is activated to rotate the second housing 47 in the horizontal direction, and the wide-angle camera 23 and the telephoto camera are moved to a position where the right eye 4 of the person 3 is photographed at the center of the wide-angle image of the wide-angle camera 23. Continue control to change the 25 shooting range.

In this state, the right eye 4 of the person 3 is photographed at the center of the wide-angle image of the wide-angle camera 23 and substantially at the center of the telephoto image of the telephoto camera 25. Thus, the telephoto camera 25 tracks and shoots the right eye 4 of the person 3 captured by the wide-angle camera 23.

Next, in a state in which the right eye 4 of the person 3 is photographed substantially at the center of the telephoto image taken by the telephoto camera 25, the size of the right eye 4 of the person 3 in the telephoto image of the telephoto camera 25 is set to the size The detecting means 71 detects.

Then, the control unit 44 receives and calculates the size information of the right eye 4 of the person 3 in the telephoto image of the telephoto camera 25, and the control unit 44 activates the zoom motor 29 to adjust the zoom magnification. The zoom magnification is adjusted by setting the position 27, and the size of the right eye 4 of the person 3 in the telephoto image captured by the telephoto camera 25 is adjusted to a predetermined size.

Also, the detection error of the position information of the right eye 4 of the person 3 by the position detecting means 35 and the displacement of the optical axis 22a of the wide-angle lens 22 and the optical axis 24a of the telephoto lens 24 cause the telephoto image of the telephoto camera 25 to be out of position. When the right eye 4 of the person 3 is not photographed substantially at the center, the position of the right eye 4 of the person 3 in the telephoto image photographed by the telephoto camera 25 is detected by the sub-position detecting means 81.

Then, the control unit 44 receives and calculates the position information from the sub-position detection means 81, and moves the control unit 44 to a position where the right eye 4 of the person 3 is photographed substantially at the center of the telephoto image of the telephoto camera 25. Activates the vertical rotation motor 56 and causes the third housing 49
Is rotated in the vertical direction, the horizontal rotation motor 62 is started to rotate the second housing 47 in the horizontal direction, and the shooting ranges of the wide-angle camera 23 and the telephoto camera 25 are changed in conjunction with each other. I do.

Further, the right eye 4 of the person 3 is
In the state where the image is taken, the distance sensor 88 detects the distance from the telephoto camera 25 to the person 3, and based on the distance information detected by the distance sensor 88, the focus motor 28 is activated and the focusing group 26 Set the position and telephoto camera
25 telephoto images are automatically focused on the right eye 4 of the person 3.

At this time, as shown in FIG. 4, a telephoto image obtained by enlarging the right eye 4 of the person 3 to a predetermined size is taken.
Is shooting. Then, a video signal of a telephoto image obtained by photographing the right eye 4 of the person 3 by the telephoto camera 25 is received by a collation device (not shown) or the like, and the collation device collates the iris 5 of the right eye 4 of the person 3. Confirm personally.

As described above, in the first embodiment, the person 3 approaching the photographable area of the wide-angle camera 23
The wide-angle camera 23 senses the proximity sensor 91 and photographs the person 3. Next, the position detecting means 35 detects the position of the right eye 4 of the person 3 in the wide-angle image of the wide-angle camera 23. Then, based on this position information, the control unit 44 activates the vertical rotation motor 56 and the horizontal rotation motor 62 to
Then, the second housing 47 is rotated in the vertical and horizontal directions, and the shooting range of the wide-angle camera 23 is changed to a position where the right eye 4 of the person 3 is shot at the center of the wide-angle image of the wide-angle camera 23.

As a result, the lens optical axis 22a of the wide-angle camera 23
And the lens optical axis 24a of the telephoto camera 25, the right eye 4 enlarged substantially at the center is photographed also in the telephoto image of the telephoto camera 25.

Therefore, the right eye 4 of the person 3 photographed by the wide-angle camera 23 can be easily tracked and photographed by the telephoto camera 25. Therefore, personal confirmation of the person 3 using the iris 5 of the right eye 4 from the telephoto image of the telephoto camera 25 photographing the right eye 4 of the person 3 can be easily performed.

Then, a wide-angle camera by the position detecting means 35
With only the positional information of the right eye 4 of the person 3 in the 23 wide-angle image, the right eye 4 of the person 3 photographed by the wide-angle camera 23 can be tracked and photographed by the telephoto camera 25, and close to the photographable area of the wide-angle camera 23. Based on the position information of the right eye 4 of the person 3 detected by the position detection means 35, the right eye 4 of the person 3
By rotating the second housing 47 and the third housing 49, the camera 44 is photographed substantially at the center of the wide-angle image of the wide-angle camera 23,
Further, the wide-angle camera 23 and the telephoto camera 25 are provided in a third housing.
49, half mirror 11 and mirror 31
The optical axis 22a of the wide-angle lens 22 and the optical axis 24a of the telephoto lens 24 coincide.

Therefore, when the right eye 4 of the person 3 is photographed at the center of the wide-angle image of the wide-angle camera 23, the right eye 4 of the person 3 can be photographed substantially at the center of the telephoto camera 25. The right eye 4 of the person 3 can be tracked only by rotating the second housing 47 in the horizontal direction while rotating the second housing 47 in the horizontal direction.

Therefore, the person 3 photographed by the wide-angle camera 23
Since the control for photographing the right eye 4 of the person 3 with the telephoto camera 25 can be easily performed, it is necessary to create a conversion table used for tracking and photographing the right eye 4 of the person 3 photographed by the wide-angle camera 23 with the telephoto camera 25. This eliminates the need for control, facilitates control during tracking, improves the manufacturability of the object tracking device 1 main body, and further simplifies the configuration of the object tracking device 1 main body, thereby achieving compactness.

Further, in a state where the right eye 4 of the person 3 photographed by the wide-angle camera 23 is photographed substantially at the center of the telephoto image of the telephoto camera 25, the size detecting means 71 detects the person 3 in the telephoto image of the telephoto camera 25. The size of the right eye 4 is detected, and based on the size information, the control unit 44 activates the zoom motor 29 to set the position of the zoom magnification adjustment mechanism 27, and the telephoto camera 25
The right eye 4 of the person 3 is adjusted to a predetermined size and photographed in the telephoto image. Therefore, the right eye 4 of the person 3 photographed by the wide-angle camera 23 can be photographed by adjusting the telephoto image of the telephoto camera 25 to a predetermined size at any time. For this reason, individual confirmation of the person 3 using the telephoto image of the right eye 4 of the person 3 captured by the telephoto camera 25 can be performed easily and accurately.

Further, based on the position information of the right eye 4 of the person 3 in the telephoto image of the telephoto camera 25 detected by the sub-position detecting means 81, the control unit 44 controls the third housing 49 and the second housing 49. In order to change the shooting range of the wide-angle camera 23 and the telephoto camera 25 by rotating the body 46, when detection control is performed by the position detection unit 35 from the wide-angle image of the wide-angle camera 23, The correction can be made even when the right eye 4 of the person 3 is not photographed. Therefore, after changing the shooting range based on the position information by the position detection unit 35, the telephoto camera 25 changes the shooting range again based on the position information by the sub-position detection unit 81.

For this reason, the detection error of the position of the right eye 4 of the person 3 by the position detecting means 35, the optical axis 22a of the wide-angle lens 22,
Since errors due to insufficient mechanical accuracy of the optical axis 24a of the telephoto lens 24 and the half mirror 11, etc., can be corrected, the tracking operation by the imaging means 21 can be ensured. Therefore, since the control for photographing the right eye 4 of the person 3 photographed by the wide-angle camera 23 at substantially the center of the telephoto image of the telephoto camera 23 can be performed accurately,
The accuracy and performance of the object tracking device 1 can be improved, and further, the accuracy of the telephoto camera 25 such as personal confirmation of the person 3 using a telephoto image of the right eye 4 of the person 3 can be improved.

Further, based on the distance information from the telephoto camera 25 to the person 3 by the distance sensor 88, the automatic focusing means 85 activates the focus motor 28 to set the position of the focusing group 26 in the telephoto image of the telephoto camera 25. The focus is automatically adjusted at any time. Therefore, control for acquiring a telephoto image of the telephoto camera 25 focused on the right eye 4 of the person 3 can be easily performed. For this reason, the collation of the iris 5 of the right eye 4 of the person 3 using the telephoto image and the individual confirmation when the right eye 4 of the person 3 is photographed by the telephoto camera 25 can be further facilitated.

The proximity sensor 91 senses the proximity of the person 3 to the wide-angle image capturing range of the wide-angle camera 23, and
The shooting range is changed to a position where the wide-angle camera 23 shoots the person 3. For this reason, even when the person 3 cannot be photographed by the wide-angle camera 23, the person 3 can be photographed by the wide-angle camera 23, so that the tracking range of the photographing means 21 can be further improved.

In the first embodiment, the person 3
The configuration in which the right eye 4 is photographed by the wide-angle camera 23 and then enlarged and photographed by the telephoto camera 25 and the individual confirmation of the person 3 is performed from the telephoto image has been described. However, the present invention is not limited to such a configuration. Any configuration is possible as long as the person 3 can be individually confirmed from the telephoto image of the telephoto camera 25. For example, a wide-angle camera
The left eye, nose, mouth, ears, etc. of the person 3 photographed at 23 may be enlarged and photographed by the telephoto camera 25, and the telephoto image may be used to confirm the person 3 individually.

Further, by rotating the second housing 47 and the third housing 49, the wide-angle lens 22 and the telephoto lens are rotated.
The direction of the coincident optical axes 22a, 24a of 24 is changed, and the shooting range of each of the wide-angle camera 23 and the telephoto camera 25 is configured to be changed. For example, the wide-angle lens 22 and the Optical axis of each telephoto lens 24
The mirrors are rotatably arranged on 22a and 24a, and by rotating the mirrors, the directions of the optical axes 22a and 24a of the wide-angle camera 23 and the telephoto camera 25 are changed. It is also possible to configure so that 25 shooting ranges are changed.

Further, a mirror 31 is provided on the optical axis 24a of the telephoto lens 24, and the half mirror 11 is provided at the intersection of the optical axis 24a of the telephoto lens 24 bent by the mirror 31 and the optical axis 22a of the wide-angle lens 22. Has been described, but the same operational effects as described above can be obtained even if the positions of the wide-angle camera 23 and the telephoto camera 25 are interchanged.

Then, based on the size information of the right eye 4 of the person 3 in the telephoto image of the telephoto camera 25 by the size detection means 71, the zoom adjustment means 75 activates the zoom motor 29 and activates the zoom magnification adjustment mechanism 27. Although the configuration for setting and adjusting the size of the right eye 4 of the person 3 in the telephoto image of the telephoto camera 25 to a predetermined size has been described, the configuration is not limited to such a configuration, and the distance to the person 3 is not limited to such a configuration. When the change of the right eye 4 is small, the size of the right eye 4 of the person 3 in the telephoto image of the telephoto camera 25 may be enlarged to a predetermined size by using the telephoto lens 24 having a fixed magnification.

Further, a telephoto camera that generates infrared light or the like
Based on the distance information detected by the distance sensor 88 that detects the distance from 25 to the person 3, the automatic focusing unit 85 sets the telephoto camera 25
The configuration for focusing on the telephoto image has been described. However, the present invention is not limited to such a configuration, and a high-frequency component is extracted from the telephoto image obtained when the right eye 4 of the person 3 is photographed by the telephoto camera 25. The configuration may be such that the focus motor 28 is activated so that the value of the component becomes the maximum, and the telephoto image of the telephoto camera 25 is focused. At this time, since the telephoto image of the telephoto camera 25 can be focused more clearly, the individual confirmation operation of the person 3 using the telephoto image of the telephoto camera 25 can be performed more accurately and easily, and the operation accuracy can be improved.

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

The subject tracking device 1 shown in FIGS. 5 and 6 is basically the same as the subject tracking device 1 shown in FIGS. 1 to 4, but has a movable mirror 101 as a movable reflecting portion.
The shooting range of each of the wide-angle camera 23 and the telephoto camera 25 is changed by the rotation of.

Then, the wide-angle camera 23 and the telephoto camera 25
Are fixed in a state of being juxtaposed upward on the same plane. On the optical axis 24a of the telephoto lens 24, a mirror 31 that bends the optical axis 24a by about 90 degrees toward the optical axis 22a of the wide-angle lens 22 is fixed. Further, a half mirror 11 is fixed to an intersection of the optical axis 22a of the wide-angle lens 22 and the optical axis 24a of the telephoto lens 24 bent by the mirror 31. The half mirror 11 moves the optical axis 24a of the telephoto lens 24 bent by the mirror 31 further upward by about 9
The optical axis 24a of the telephoto lens 24 and the optical axis 22a of the wide-angle lens 22 coincide with each other by being bent by 0 degrees. Therefore, the half mirror 11 and the mirror 31 match the shooting directions of the wide-angle camera 23 and the telephoto camera 25.

Further, on the optical axes 22a and 24a of the wide-angle lens 22 and the telephoto lens 24 matched by the half mirror 11, a photographing range changing means for bending these optical axes 22a and 24a sideward by about 90 degrees. Movable mirror 101 as part of 41
Are rotatable in the vertical direction, ie, the direction C shown in FIG. 6, and the horizontal direction, ie, the direction D shown in FIG. The movable mirror 101 has a reflection surface 102, and the reflection surface 102 is a wide-angle camera 23 and a telephoto camera 25.
And the camera is arranged facing the wide-angle camera 23 side. Further, by rotating the movable mirror 101, the shooting range of the wide-angle camera 23 and the telephoto camera 25, that is, the shooting direction is changed in conjunction with the rotation of the movable mirror 101. Further, the movable mirror 101 is
By the activation of the vertical rotation motor 56 and the horizontal rotation motor 62 by 4, the rotation is performed in the horizontal and vertical directions.

Here, the transmitted light split by the half mirror 11, that is, the telephoto incident light 8 is transmitted to the wide-angle lens of the wide-angle camera 23.
The reflected light split by the half mirror 11, that is, the wide-angle incident light 9 is incident on the telephoto lens 24 of the telephoto camera 25.

The control unit 44 and the focus motor
Focus control means 95 for focusing a telephoto image of the telephoto camera 25 is connected to each of the cameras 28, and under the control of the control unit 44, the focus motor 28 is activated, the focusing group 26 is set, and the telephoto camera 25 is controlled. Focus a telephoto image. Further, the distance sensor 88 is connected to the control unit 44,
The control unit 44 activates the focus motor 28 by the focus adjustment unit 95 based on the distance information detected by the distance sensor 88.

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

When the person 3 approaches the photographable area of the wide-angle camera 23, the position information of the person 3 is detected by the proximity sensor 91, and the position information is received and calculated by the control unit 44. Then, based on the calculation result, the control unit 44
The movable mirror 101 is started by activating the 56 and the horizontal rotation motor 62.
Are rotated in the vertical and horizontal directions, and the shooting ranges of the wide-angle camera 23 and the telephoto camera 25 are changed in conjunction with each other. At this time, the wide-angle camera 23 photographs the right eye 4 of the person 3.

Next, the position detecting means 35 detects the position of the right eye 4 of the person 3 in the wide-angle image of the wide-angle camera 23.
The position information is received and calculated by the control unit 44, and the control unit 44 rotates the movable mirror 101 so that the right eye 4 of the person 3 is photographed at the center of the wide-angle image of the wide-angle camera 23, and the wide-angle camera Feedback control of the shooting range of the 23 and the telephoto camera 25 is performed. Thus, the right eye 4 of the person 3 is photographed substantially at the center of the telephoto image of the telephoto camera 25.

Further, when the right eye 4 of the person 3 is not photographed in the center of the wide-angle image of the wide-angle camera 23, the position detecting means 35 detects the position of the right eye 4 of the person 3 in the wide-angle image of the wide-angle camera 23. Then, the control unit 44 rotates the movable mirror 101 to change the shooting range of the wide-angle camera 23 and the telephoto camera 25, and feeds back the right eye 4 of the person 3 at the center of the wide-angle image of the wide-angle camera 23. Continue control. At this time, the telephoto camera 25 captures the right eye 4 of the person 3 at approximately the center of the telephoto image. Therefore, the right eye 4 of the person 3 photographed by the wide-angle camera 23 is tracked and photographed by the telephoto camera 25.

When the right eye 4 of the person 3 is photographed substantially at the center of the telephoto image of the telephoto camera 25, the size of the right eye 4 of the person 3 in the telephoto image of the telephoto camera 25 is determined by the size detection means. The control unit 44 receives and calculates the size information, and further based on the calculation result, the control unit 44 activates the zoom motor 29 to control the zoom magnification adjusting mechanism.
The position of 27 is set, and the size of the right eye 4 of the person 3 in the telephoto image of the telephoto camera 25 is adjusted to a predetermined size.

When the right eye 4 of the person 3 is not photographed substantially at the center of the telephoto image of the telephoto camera 25,
The position of the right eye 4 of the person 3 in the telephoto image of 25 is detected by the sub-position detecting means 81, and the position information is received and calculated by the control unit 44. Based on the calculation result, the telephoto image of the telephoto camera 25 is obtained. The control unit 44 rotates the movable mirror 101 to a position where the right eye 4 of the person 3 is photographed at substantially the center of the camera 3 and interlocks and changes the photographing range of the wide-angle camera 23 and the telephoto camera 25.

Further, when the telephoto camera 25 photographs the right eye 4 of the person 3, the distance sensor 88 detects the distance from the telephoto camera 25 to the person 3, and the control unit 44 receives this distance information. And calculate. Then, based on the calculation result, the control unit 44 activates the focus motor 28 by the focus adjustment unit 95, sets the position of the focusing group 26, and transmits the telephoto image of the telephoto camera 25 to the right eye 4 of the person 3. Is in focus.

In this state, the right eye 4 of the person 3 is photographed at approximately the center of the telephoto image of the telephoto camera 25 while being enlarged to a predetermined size. Therefore, the video signal of the telephoto image of the telephoto camera 25 is transmitted to a collation device (not shown) or the like, and the collation device collates the iris 5 of the right eye 4 of the person 3 to confirm the individual of the person 3.

As described above, in the second embodiment, the right eye 4 of the person 3 photographed by the wide-angle camera 23 is tracked and magnified by the telephoto camera 25.
The same operation and effect as those of the object tracking device 1 shown in FIG.

Further, the rotation of the movable mirror 101 changes the shooting ranges of the wide-angle camera 23 and the telephoto camera 25 in conjunction with each other. Therefore, the wide-angle camera 23 and the telephoto camera 25
Compared to rotating the camera itself and changing the shooting range of the wide-angle camera 23 and the telephoto camera 25, the mass of the movable part can be reduced, and the control can be performed quickly.
The tracking speed can be improved.

As a result, the structure can be simplified, the size can be reduced, and the wiring connected to the wide-angle camera 23 and the telephoto camera 23 can be easily processed. Can be improved.

Further, the optical axis 22a of the wide-angle lens 22 and the optical axis 24a of the telephoto lens 24 are controlled by the half mirror 11 and the mirror 31.
And match. For this reason, since the image taken at the center of the wide-angle image of the wide-angle camera 23 and the image taken at substantially the center of the telephoto image of the telephoto camera 25 have different magnifications,
Images with different magnifications can be obtained. Therefore, the control when tracking the right eye 4 of the person 3 can be easily performed, and the control when rotating the movable mirror 101 can be also easily performed, so that the right eye 4 of the person 3 captured by the wide-angle camera 23 Since there is no need to create a conversion table or the like necessary for photographing substantially at the center of the telephoto image, the processing speed when tracking and photographing the person 3 is accelerated, and the accuracy and performance of the object tracking device 1 can be improved. .

When the right eye 4 of the person 3 is photographed by the telephoto camera 25, the distance sensor 88 detects the distance from the telephoto camera 25 to the person 3, and the control unit 44 focuses on the basis of the distance information. The position of the focusing group 26 is set by the adjusting means 95, and the telephoto image of the telephoto camera 25 is focused. For this reason, the right eye 4 of the person 3 in the telephoto image of the telephoto camera 25 is sharply focused by the focus adjusting means 95, so that the right eye 4 of the person 3 captured by the wide-angle camera 23 is captured by the telephoto camera 25. The work accuracy of the personal confirmation of the person 3 using the telephoto image can be improved. Further, since the focus adjustment unit 95 focuses the telephoto image of the telephoto camera 25 more clearly, the accuracy and performance of the subject tracking device 1 can be improved.

Furthermore, since the wide-angle image by the wide-angle camera 23 and the telephoto image by the telephoto camera 25 can be simultaneously photographed by the photographing means 21, the control operation can be continued when the right eye 4 of the person 3 is photographed by tracking. Operation can be performed more reliably.

In the second embodiment, the distance detecting means 87 detects the distance from the telephoto camera 25 to the person 3, and based on this distance information, the control unit 44 focuses on the focus adjusting means 95. The configuration for setting the position of the group 26 and focusing on the telephoto image of the telephoto camera 25 has been described.
The configuration is not limited to such a configuration. For example, the focus motor 28 is activated by the control unit 44 so that the high-frequency component of the video signal of a telephoto image obtained by photographing the right eye 4 of the person 3 with the telephoto camera 25 is maximized. In this way, the position of the focusing group 26 can be set, and the telephoto image of the telephoto camera 25 can be focused.

Further, the configuration using the half mirror 11 that splits the incident light 7 into reflected light and transmitted light has been described.
The configuration is not limited to such a configuration, and a dichroic mirror that splits the incident light 7 into infrared light and visible light may be used. By arranging the telephoto camera 25 having high infrared sensitivity in the incident direction of the infrared light,
The telephoto image photographed by the eye is the visual sense of the person 3, that is, the right eye 4
Is irradiated with infrared light that is not sensed, so that pain to the eyes of the person 3 at the time of irradiation can be reduced as compared with the case of irradiating visible light. For this reason, the telephoto image by the telephoto camera 25 can be made clearer, the tracking accuracy by the photographing means 21 can be improved, and the individual confirmation of the person 3 using the telephoto image can be more easily performed.

Therefore, by irradiating the right eye 4 of the person 3 with the infrared light, the telephoto image of the telephoto camera 25 can be more clearly photographed. For this reason, the accuracy of individual confirmation of the person 3 using the telephoto image of the telephoto camera 25 can be further improved.

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

The subject tracking device 1 shown in FIG. 7 is basically the same as the subject tracking device 1 shown in FIGS. 1 to 4, except that the wide-angle camera 23 and the telephoto camera 23 have a common focusing group 26. Things.

The wide-angle camera 23 has a wide-angle lens 22 for wide-angle processing of the wide-angle incident light 9 and a wide-angle image sensor 111 for shooting the wide-angle image when the wide-angle incident light 9 processed by the wide-angle lens 22 enters. , The optical axis 22a of the wide-angle lens 22 to about 9
And a mirror 31 as a reflecting portion that is bent by 0 degrees.

The wide-angle lens 22 has a constant focal length, and includes a focusing group 26 for focusing a wide-angle image captured by the wide-angle image sensor 111. The focusing group 26 is provided on the optical axis 22a of the wide-angle lens 22. Further, the wide-angle lens 22 includes a focusing group.
Optical axis 22a of wide-angle lens 22 between 26 and wide-angle image sensor 111
A first lens 112 disposed thereon and a first lens 1
Optical axis 22a of wide-angle lens 22 between 12 and wide-angle image sensor 111
A second lens 113 disposed thereon, and a second lens 1
Optical axis 22a of wide-angle lens 22 between 13 and wide-angle image sensor 111
And a third lens 114 disposed thereon.

Further, the first lens 112 and the second lens 1
A mirror 31 is fixed between the mirror 13 and the mirror 13. This mirror
Reference numeral 31 reflects the wide-angle incident light 9 transmitted through the first lens 112 and makes it incident on the second lens 113. The half mirror 11 is fixed between the focusing group 26 and the first lens 112. The half mirror 11 splits the incident light 7 incident on the focusing group 26 into a telephoto incident light 8 and a wide-angle incident light 9 and splits the wide-angle incident light 9 into a first lens.
It is incident on 112.

The telephoto camera 25 includes a telephoto lens 24 for performing telephoto processing on the telephoto incident light 8, a telephoto imaging device 121 for receiving the telephoto incident light 8 processed by the telephoto lens 24 and capturing a telephoto image. It has. A half mirror 11 is provided on the optical axis 24a of the telephoto lens 24, and the optical axis 24a of the telephoto lens 24 between the half mirror 11 and the telephoto image sensor 121 is zoomed. A zoom magnification adjusting mechanism 27 for adjusting the ratio is provided.

The zoom magnification adjusting mechanism 27 is connected to the optical axis 2 of the telephoto lens 24 between the half mirror 11 and the telephoto image sensor 121.
A variator 122 is provided on the 4a, and a first compensator 123 is provided on the optical axis 24a of the telephoto lens 24 between the variator 122 and the telephoto imaging device 121. Then, the second lens is provided on the optical axis 24a of the telephoto lens 24 between the first compensator 123 and the telephoto image sensor 121.
Is provided, and the variator 122, the first compensator 123, and the second compensator 124 are moved in conjunction with each other to set a zoom magnification. Further, the second compensator 124
A relay lens 125 is provided on the optical axis 24a of the telephoto lens 24 between the telephoto imaging device 121 and the telephoto imaging device 121.

Further, the zoom magnification adjusting mechanism 27 includes an optical axis 24a.
A focusing group 26 is provided above and focuses on a telephoto image captured by the telephoto image sensor 121. further,
The telephoto camera 25 splits the incident light 7 incident on the focusing group 26 into the telephoto incident light 8 and the wide-angle incident light 9 by the half mirror 11, and makes the telephoto incident light 8 incident on the zoom magnification adjusting mechanism 27 before the telephoto. The light is incident on the image sensor 121.

Here, the optical axis 22a of the wide-angle lens 22 and the optical axis 24a of the telephoto lens 24 are matched by the half mirror 11.

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

The person 3 is set in the photographable area of the wide-angle image sensor 111.
Is approaching, the proximity sensor 91 detects the position of the person 3.

The position information is received and calculated by the control unit 44, and the control unit 44 activates the vertical rotation motor 56 and the horizontal rotation motor 62, so that the person 3 is included in the wide-angle image of the wide-angle image sensor 111. Wide-angle image sensor to the right eye 4 shooting position
The photographing ranges of 111 and the telephoto image sensor 121 are changed.

Next, the position detecting means 35 is connected to the wide-angle
The position of the right eye 4 of the person 3 in one wide-angle image is detected. The position information is received and calculated by the control unit 44, and the control unit 44 changes the shooting range of the wide-angle image sensor 111 to a position where the right eye 4 of the person 3 is shot at the center of the wide-angle image of the wide-angle image sensor 111. .

At this time, the wide-angle lens 22 and the telephoto lens
Since the optical axes 22a and 24a of the 24 coincide with each other,
The right eye 4 of the person 3 is photographed by the telephoto image photographed by 1. Therefore, the right eye 4 of the person 3 photographed by the wide-angle image sensor 111 is tracked by the telephoto image sensor 121 and photographed.

When the right eye 4 of the person 3 is photographed by the telephoto image sensor 121, the distance sensor 88 is set to the telephoto image sensor 12
The distance from 1 to person 3 is detected. Based on this distance information, the automatic focusing means 85 activates the focus motor 28 to set the position of the focusing group 26, and the telephoto image sensor 121
Is focused on the right eye 4 of the person 3.

Further, the size detecting means 71 is a telephoto image sensor.
The size of the right eye 4 of the person 3 in the telephoto image of 121 is detected. Then, the control unit 44 receives and calculates the size information, and the control unit 44 activates the zoom motor 29 by the zoom adjustment unit 75 to control the variator 122, the first compensator 123, and the second compensator 124. Set the position,
The person 3 photographed in the telephoto image of the telephoto image sensor 121
The size of the right eye 4 is adjusted to a predetermined size.

When the right eye 4 of the person 3 is not photographed substantially at the center of the telephoto image of the telephoto image sensor 121, the sub-position detecting means 81 outputs the right eye 4 of the person 3 in the telephoto image of the telephoto image sensor 121. Detect the position of. Then, the control unit 44 receives and calculates the position information, and moves the vertical rotation motor 56 and the horizontal rotation motor to a position where the right eye 4 of the person 3 is photographed substantially at the center of the telephoto image of the telephoto image sensor 121. Motor 62
To activate the wide-angle image sensor 111 and the telephoto image sensor 121.
Change the shooting range of.

At this time, the right eye 4 of the person 3 is photographed at a substantially center of the telephoto image of the telephoto image pickup device 121 to a predetermined size. Therefore, by sending the video signal of the telephoto image of the telephoto image sensor 121 to a collation device (not shown) or the like, the iris 5 of the right eye 4 of the person 3 is transmitted by the collation device.
Is checked, and the person 3 is identified.

As described above, in the third embodiment, the right eye 4 of the person 3 photographed by the wide-angle image sensor 111 as the wide-angle camera 23 is moved to the telephoto image sensor as the telephoto camera 25.
1 to 4 for tracking and enlarging at 121 to shoot
The same operation and effect as those of the object tracking device 1 shown in FIG.

The right eye 4 of the person 3 photographed by the wide-angle image sensor 111 is changed by the photographing means changing means 41 in such a manner that the photographing ranges of the wide-angle image sensor 111 and the telephoto image sensor 121 are changed in conjunction with each other. The image is tracked and enlarged by the element 121 to be clearly photographed. For this reason, the person 3 is collated using the telephoto image of the telephoto image sensor 121 that has photographed the iris 5 of the right eye 4 of the person 3, and the work efficiency in confirming the person 3 can be further improved.

A wide-angle image captured by the wide-angle image sensor 111 and a telephoto image captured by the telephoto image sensor 121 are focused by a common focusing group 26. For this reason, since the configuration of the photographing means 21 can be simplified, the configuration of the subject tracking device 1 can be simplified, the manufacturability can be improved, and the size can be further reduced.

Further, the variator 122, the first compensator 123 and the second compensator 124 of the zoom magnification adjusting mechanism 27 are connected to the zoom motor 29 by the zoom adjusting means 75.
Is started, and the zoom magnification of the telephoto image captured by the telephoto image sensor 121 is adjusted. Therefore, when the right eye 4 of the person 3 is photographed by the telephoto image sensor 121, the person 3
Is photographed with the right eye 4 adjusted to a predetermined size.
Therefore, the right eye 4 of the person 3 photographed by the wide-angle imaging device 111 can be tracked and enlarged by the telephoto imaging device 121 and photographed.

In the third embodiment, the focusing is performed by moving the focusing unit 26. However, the telephoto image captured by the telephoto image sensor 121 is moved by moving the relay lens 125 in the axial direction. The focus may be adjusted.

Furthermore, the positions of the telephoto lens 24 and the wide-angle lens 22 can be interchanged. With such a configuration, the same operation and effect as the third embodiment can be obtained.

Further, the configuration in which the photographing ranges of the wide-angle image pickup device 111 and the telephoto image pickup device 121 are changed by moving the half mirror 11 and the photographing means 21 as a whole has been described. However, the present invention is not limited to such a structure. For example, the half mirror 11 and the photographing means 21 are fixed, and a movable mirror 101 rotatable in the vertical and horizontal directions is mounted on the middle light of the incident light 7 entering the focusing group 26, By rotating 101,
The imaging range of the wide-angle imaging device 111 and the telephoto imaging device 121 may be changed.

Next, the configuration of the fourth embodiment of the present invention will be described with reference to FIG.

The subject tracking device 1 shown in FIG. 8 is basically the same as the subject tracking device shown in FIG. 7, except that a wide-angle image sensor 111 for capturing a wide-angle image and a telephoto image sensor 121 for capturing a telephoto image. Are common.

Then, the photographing means 21 moves the optical axis 22 so that the center light of the wide-angle incident light 9 split by the half mirror 11 passes therethrough.
a, a wide-angle lens 22 provided with a, a telephoto lens 24 provided with an optical axis 24a so that the center light of the telephoto-incident light 8 split by the half mirror 11 passes, and a wide-angle lens 22 after passing through the wide-angle lens 22. A position where the optical axis 22a of the wide-angle lens 22 and the optical axis 24a of the telephoto lens 24 after passing through the telephoto lens 24,
That is, a prism 131 is provided at the intersection, and serves as a light combining unit that combines and outputs the optical axes 22a and 24a of the wide-angle lens 22 and the telephoto lens 24, respectively.

The photographing means 21 is a half mirror.
A wide-angle optical shutter 141 is disposed on the optical axis 22a of the wide-angle lens 22 between the first mirror 11 and the prism 131 and blocks or transmits the wide-angle incident light 9 between the half mirror 11 and the prism 131. A telephoto light shutter 151, which is disposed on the optical axis 24a of the telephoto lens 24 and transmits or blocks the telephoto incident light 8, is disposed on the central light of light synthesized and output by the prism 131. And an image pickup device 161 that receives the wide-angle image 9 or the telephoto image 8 and captures a wide-angle image or a telephoto image.

The wide-angle light shutter 141 and the telephoto light shutter 151 are optical shutter devices such as a liquid crystal shutter, for example. 8 while the wide-angle light shutter 141 transmits the wide-angle incident light 9 and the telephoto shutter 151 shields the telephoto-incident light 8 in synchronization with the driving of the photographing means 21. means
It is controlled by a control unit 44 of 41.

The wide-angle lens 22 includes a focusing group 26 for focusing a wide-angle image and a telephoto image captured by the image sensor 161. Further, the first lens 112 and the second lens 112 for wide-angle processing the wide-angle incident light 9 are provided. 2 lenses 113 are provided. The wide-angle lens 22 is provided with a relay lens 125 that receives the wide-angle incident light 9 and the telephoto incident light 8 whose center light is matched by the prism 131, and corrects the wide-angle image and the telephoto image captured by the image sensor 161. ing.

The focusing group 26 is arranged such that the incident light 7 transmitted through the focusing group 26 is incident on the half mirror 11. Further, the center light of the wide-angle incident light 7 reflected by the half mirror 11 after being incident on the focusing group 26 coincides with the optical axis 22a of the wide-angle lens 22, so that the first lens 112 Incident,
Next, after the optical axis 22a of the wide-angle lens 22 is bent by the first mirror 162 as a first reflector, the light enters the second lens 113, and further, the second mirror as a second reflector is formed. Mirror 16
The prism after the optical axis 22a of the wide-angle lens 22 is bent at 3
The light enters and is reflected by 131, and finally enters the image pickup device 161 after being incident on the relay lens 125, and the image pickup device 161 takes a wide-angle image.

The telephoto lens 24 includes a focusing unit.
Since the center light of the telephoto incident light 8 transmitted through the half mirror 11 after passing through 26 coincides with the optical axis 24a of the telephoto lens 24, first, after entering the variator 122,
, And then the second compensator 124, then the prism 131, then the relay lens 125, then the image sensor 161. Be photographed.

Further, the wide-angle optical shutter 141 is provided between the second mirror 163 and the prism 131.
163 is disposed on the central light of the reflected wide-angle incident light 9. Further, the telephoto shutter 151 is disposed between the half mirror 11 and the variator 122 on the center light of the telephoto incident light 8 transmitted through the half mirror 11.

The position detecting means 35 detects the person 3 in the wide-angle image of the image sensor 161 in a state where the telephoto shutter 151 blocks the telephoto incident light 8 and the wide-angle optical shutter 141 transmits the wide-angle incident light 9. When the right eye 4 is photographed, the position of the right eye 4 of the person 3 in the wide-angle image of the image sensor 161 is detected.

The photographing range changing means 41 outputs the person 3 at the center of the wide-angle image based on the position information from the position detecting means 35.
The photographing range of the photographing means 21 is changed to the position where the right eye 4 is photographed, and feedback control is performed.

Further, the photographing range changing means 41 transmits the wide-angle incident light 9 with the wide-angle optical shutter 141 and shields the telephoto incident light 8 with the telephoto light shutter 151, and places the person in the center of the wide-angle image of the image sensor 161. When the right eye 4 of 3 is photographed, the wide-angle light shutter 141 blocks the wide-angle incident light 9 and the telephoto light shutter 151 transmits the telephoto incident light 8.

At this time, the image sensor 161 is connected to the wide-angle lens 22.
And the optical axis 24a of the telephoto lens 25 are aligned so that the right eye 4 of the person 3 is photographed substantially at the center of the telephoto image.

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

When the person 3 is not photographed by the image pickup device 161, the telephoto light shutter 151 blocks the telephoto incident light 8, the wide-angle light shutter 141 transmits the wide-angle incident light 9, and the image pickup device 161 becomes wide-angle. Control unit 44 to take an image
Is controlling.

When the person 3 approaches the wide-angle image photographable area of the image sensor 161, the proximity sensor 91 detects the position of the person 3. The position information is received and calculated by the control unit 44, and the control unit 44 activates the vertical rotation motor 56 and the horizontal rotation motor 62, and captures the right eye 4 of the person 3 in the wide-angle image of the image sensor 161. Then, the photographing means 21 is moved to change the photographing range of the image sensor 161.

Next, the position detecting means 35 detects the position of the right eye 4 of the person 3 in the wide-angle image of the image sensor 161.
The position information is received and calculated by the control unit 44, and the control unit 44 outputs the person 3 at the center of the wide-angle image of the image sensor 161.
The photographing range of the image sensor 161 is changed to the position where the right eye 4 is photographed.

At this time, the control unit 44 controls the wide-angle light shutter 141 to block the wide-angle incident light 9 and the telephoto shutter 151 to transmit the telephoto incident light 8 so that the image sensor 161 captures a telephoto image. I do. In this state, since the optical axis 22a of the wide-angle lens 22 and the optical axis 24a of the telephoto lens 24 match,
The right eye 4 of the person 3 is photographed substantially at the center of the telephoto image photographed by the image sensor 161. Therefore, the image sensor
The right eye 4 of the person 3 photographed with the 161 wide-angle image is imaged by the image sensor 161.
Tracking and photographing with telephoto images.

Further, when the right eye 4 of the person 3 is photographed substantially at the center of the telephoto image of the image sensor 161, the distance sensor 88
Detects the distance from the image sensor 161 to the person 3. Based on this distance information, the automatic focusing means 85
28 is activated to set the position of the focusing group 26, and the telephoto image of the image sensor 161 is focused on the right eye 4 of the person 3.

Next, the size detecting means 71 is connected to the image pickup device 161.
The size of the right eye 4 of the person 3 in the telephoto image is detected. The size information is received by the control unit 44 and calculated, and based on the calculation result, the control unit 44
To activate the variator 122 of the zoom magnification adjustment mechanism 27,
First compensator 123 and second compensator 1
The position of the right eye 4 of the person 3 in the telephoto image of the imaging device 161 is adjusted to a predetermined size by setting the position of the right eye 4 in conjunction with the position of the right.

When the right eye 4 of the person 3 is not photographed substantially at the center of the telephoto image of the image sensor 161, the sub-position detecting means 81 determines the position of the right eye 4 of the person 3 in the telephoto image of the image sensor 161. Is detected. Then, the control unit 44 receives and calculates the position information, and changes the shooting range of the image sensor 161 to a position where the right eye 4 of the person 3 is shot substantially at the center of the telephoto image of the image sensor 161. I do.

Here, when the right eye 4 of the person 3 is not photographed in the telephoto image of the image pickup device 161 such as when the person 3 moves greatly, the photographing range changing means 41 again uses the image pickup device to perform wide-angle shooting. Switching is performed so that an image can be captured, and similar control is performed.

At this time, the right eye 4 of the person 3 is photographed at a substantially center of the telephoto image of the image sensor 161 while being enlarged to a predetermined size. Therefore, by sending the video signal of the telephoto image of the image sensor 161 to a collation device (not shown) or the like, the collation device collates the iris 5 of the right eye 4 of the person 3 and confirms the individual of the person 3.

As described above, in the fourth embodiment, the right eye 4 of the person 3 photographed by the wide-angle image of the image sensor 161 is used.
Is photographed by tracking the telephoto image of the image sensor 161 and enlarging the telephoto image, the same operation and effect as those of the subject tracking device 1 shown in FIG.

Further, by switching between blocking of the wide-angle incident light 9 by the wide-angle optical shutter 141 and blocking of the telescopic incident light 8 by the telephoto shutter 151, the same image pickup device 161 is used.
To switch between wide-angle and telephoto images. For this reason, compared with the case where the wide-angle camera 23 and the telephoto camera 25 are provided and the right-eye 4 of the person 3 is tracked and photographed, only one image sensor 161 for photographing the wide-angle image and the telephoto image is required. Since the integration can be performed and the configuration of the photographing unit 21 can be simplified, the subject tracking device 1
Can be simplified, manufacturability can be improved, and manufacturing cost can be reduced.

In the fourth embodiment, the wide-angle lens 22 includes the focusing group 26, the first lens 112, the second lens 113, and the relay lens 125 in order to capture a wide-angle image with the image sensor 161. Although used, the present invention is not limited to such a configuration, and any configuration may be used as long as a wide-angle image can be captured by the image sensor 161.

In order to shoot a telephoto image with the image sensor 161, the telephoto lens 24 is used as a focusing group 26,
Although the variator 122, the first compensator 123, the second compensator 124, and the relay lens 125 are used, the present invention is not limited to such a configuration, and any configuration may be used as long as the image sensor 161 can capture a telephoto image.

Further, the first lens 112 and the second lens 1
13, a first mirror 162 is disposed between the first mirror 162 and the second lens 113.
Although the configuration in which the second mirror 163 is disposed between the first mirror 131 and the prism 131 has been described, the present invention is not limited to such a configuration, and the wide-angle incident light 9 split by the half mirror 11 is converted into the wide-angle lens 22 and the prism 131. It is only necessary that the light can be sequentially incident on 131.

The configuration in which the wide-angle optical shutter 141 is provided between the second mirror 163 and the prism 131 and the telephoto optical shutter 151 is provided between the half mirror 11 and the variator 122 has been described. The configuration is not limited to such a configuration, and the wide-angle incident light 9 split by the half mirror 11 before entering the prism 131 is used as the wide-angle light shutter 141.
Is a telephoto light shutter that shields the telephoto incident light 8 split by the half mirror 11 before entering the prism 131.
Any configuration may be used as long as 151 blocks light.

Further, a mirror or the like that moves mechanically without using the wide-angle optical shutter 141 and the telephoto optical shutter 151 is disposed at the position of the half mirror 11 and the prism 131. And the path of the telephoto lens 24, the incident light 7 may be switched and passed.

Further, the half mirror 11 and the photographing means 21
The configuration in which the imaging range of the imaging element 161 is changed by moving the entirety has been described. However, the configuration is not limited to such a configuration. For example, the half mirror 11 and the imaging unit 21 are fixed, and the focusing group 26 is fixed. The optical axis of the wide-angle lens 22 and the telephoto lens 24 of the incident light 7
A movable mirror 101 rotatable in the vertical and horizontal directions is mounted on 22a and 24a, and the imaging range of the image sensor 161 can be changed by rotating the movable mirror 101.

Then, at a predetermined interval, the image sensor 161 of the photographing means 21 instantaneously changes, for example, from 1/30 to 1/10.
It is also possible to adopt a configuration in which the switching is alternately performed at about a second, that is, at a time interval of 1 to 3 frames, and a wide-angle image and a telephoto image are alternately captured by the image sensor 161. Therefore, the same control as in the case of having the two wide-angle imaging elements 111 for wide-angle imaging and the telephoto imaging element 121 for telephoto imaging is possible, so that the person 3 moves greatly and this person 3 Even if the right eye 4 of the person 3 is not photographed, the tracking operation can be performed more reliably because the position information of the right eye 4 of the person 3 in the wide-angle image can be controlled.

The photographing means 21 of each of the above embodiments is
The provision of the telephoto lens 24, which can change the focal length of the lens and can switch between a wide-angle image and a telephoto image, can provide the same functions and effects as those of the fourth embodiment.

[0171]

According to the subject tracking apparatus of the first aspect, the focal length of the telephoto lens is changed, the position of the predetermined portion of the subject in the wide-angle image of the photographing means is detected by the position detecting means, and the photographing range changing means is changed. Only the three operations of changing the photographing range of the photographing means by the photographing means can track and photograph the predetermined part of the subject photographed in the wide-angle image of the photographing means with the telephoto image of the photographing means. In addition to facilitating control when capturing an image while tracking a part, the structure can be simplified, so that it can be manufactured easily and inexpensively, and individual confirmation of a subject using a telephoto image of the imaging means can be facilitated.

According to the subject tracking apparatus of the second aspect,
Since the optical axis of the wide-angle lens of the wide-angle camera coincides with the optical axis of the telephoto lens of the telephoto camera, a predetermined portion of the subject photographed by the wide-angle camera is photographed in the center only by the position information by the position detection means. By simply controlling the camera, a predetermined portion of the subject can be photographed substantially at the center of the telephoto camera. Therefore, control for tracking the predetermined portion of the subject and telephotoly photographing can be easily performed, and the structure can be simplified and the manufacturing cost can be reduced. With
Since the wide-angle image of the wide-angle camera and the telephoto image of the telephoto camera can be obtained at the same time, the control operation can be continued, the tracking operation can be ensured, and furthermore, the individual confirmation of the subject using the telephoto image of the telephoto camera can be performed. Can be easily done.

According to the subject tracking apparatus of the third aspect,
In addition to the effect of the object tracking device according to claim 2, when the common lens group of the wide-angle lens and the telephoto lens is appropriately set, the wide-angle image and the telephoto image of the imaging unit are focused, and thus the structure of the imaging unit Can be simplified, made compact, and more easily manufactured.

According to the subject tracking apparatus of the fourth aspect,
In addition to the effects of the subject tracking device according to claim 2 or 3,
By arranging the optical axis of the telephoto lens on the center light of the infrared light separated by the spectroscopic means, the eyes of the subject can be illuminated with infrared light that is not perceived by the sight of the subject. In addition to providing the subject with no pain, the telephoto image of the photographing means can be made clearer, the tracking accuracy of the photographing means can be improved, and individual confirmation of the subject using the telephoto image of the photographing means can be more easily performed.

According to the subject tracking apparatus of the fifth aspect,
Since only the position information of the subject by the position detecting means can be used to track and photograph a predetermined portion of the subject with the telephoto image of the image sensor, control at this time can be easily performed, and individual confirmation of the subject using the telephoto image of the image sensor can be performed. In addition, since a wide-angle image and a telephoto image can be captured by one image sensor, the lens can be integrated, the configuration can be simplified, and the device can be easily manufactured.

According to the subject tracking apparatus of the sixth aspect,
In addition to the effect of the object tracking device according to claim 5, when the common lens group of the wide-angle lens and the telephoto lens is appropriately set, the wide-angle image and the telephoto image of the imaging unit are focused, so that the structure of the imaging unit Can be simplified, made compact, and more easily manufactured.

According to the subject tracking apparatus of the seventh aspect,
In addition to the effects of the subject tracking device according to claim 5 or 6,
By arranging the optical axis of the telephoto lens on the center light of the infrared light separated by the spectroscopic means, the eyes of the subject can be illuminated with infrared light that is not perceived by the sight of the subject. In addition to providing the subject with no pain, the telephoto image of the photographing means can be made clearer, the tracking accuracy of the photographing means can be improved, and individual confirmation of the subject using the telephoto image of the photographing means can be more easily performed.

According to the subject tracking apparatus of the eighth aspect,
In addition to the effects of the subject tracking device according to any one of claims 1 and 5 to 7, even if a predetermined part of the subject is not once photographed in the telephoto image of the photographing means, the telephoto of the photographing means is again performed. Since a predetermined portion of the subject can be photographed in the image, the tracking operation of the photographing means can be reliably performed.

According to the subject tracking apparatus of the ninth aspect,
In addition to the effects of the subject tracking device according to any one of claims 1 and 5 to 8, the image capturing means is configured to alternately switch between a wide-angle image and a telephoto image at predetermined intervals.
Since it is always the same as when a wide-angle image and a telephoto image are taken, the tracking operation by the photographing means can be more reliably performed even when the subject moves.

According to the subject tracking device of the tenth aspect, in addition to the effect of the subject tracking device of the first to ninth aspects, when the movable reflector is rotated, the shooting range of the shooting means changes. As compared with the case where the photographing means itself is rotated to change the photographing range of the photographing means, the photographing means can easily rotate when tracking and photographing a predetermined part of the subject, and the tracking speed can be improved. Since the structure can be simplified, it can be made compact and can be manufactured more easily.

According to the subject tracking device of the eleventh aspect, in addition to the effects of the subject tracking device of the first aspect, a predetermined portion of the subject captured by the wide-angle image is captured substantially at the center of the telephoto image. After that, the size of the predetermined portion is detected by the size detection unit, and based on the size information, the zoom adjustment unit sets the zoom magnification adjustment mechanism,
Since a predetermined part in the telephoto image is adjusted to a predetermined size,
In the telephoto image of the photographing means, a predetermined portion of the subject can be photographed in a predetermined size at any time, and individual confirmation of the subject using the telephoto image of the photographing means can be more easily performed.

According to the subject tracking device of the twelfth aspect, in addition to the effect of the subject tracking device of any one of the first to eleventh aspects, in addition to the effect of the subject tracking device in a state where a predetermined portion of the subject is captured in the wide-angle image of the capturing means. Since the detection error of the position information by the position detecting means and the error due to insufficient mechanical accuracy of each lens and the spectral means of the photographing means can be corrected by the sub position detecting means, the tracking accuracy by the photographing means can be further improved, and It is possible to more easily confirm the individual of the subject using the telephoto image, and even if the subject moves, the tracking can be performed with the sub-position detection information of the telephoto image.

According to the subject tracking device of the thirteenth aspect, in addition to the effect of the subject tracking device of the first aspect, the automatic focusing means automatically focuses the telephoto image of the photographing means as needed. Therefore, individual confirmation of the subject using the telephoto image of the photographing means can be more easily and accurately performed.

According to the object tracking device of the fourteenth aspect, in addition to the effect of the object tracking device of any one of the first to thirteenth aspects, even if it is impossible to capture a wide-angle image, the image capturing means can be used. Since the proximity sensor senses the proximity of the subject to the wide-angle image photographable range, the subject can be photographed with the wide-angle image of the photographing means, so that the tracking range of the photographing means can be further improved.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a subject tracking device according to a first 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 the shooting range of the wide-angle camera and the telephoto camera. (B) Explanatory diagram showing the optical axis of the wide-angle camera and the 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 illustrating a subject tracking device according to a second embodiment of the present invention.

FIG. 6 is an explanatory diagram showing a situation where the subject is photographed by the subject tracking device.

FIG. 7 is an explanatory diagram showing a spectral unit and a photographing unit of a subject tracking device according to a third embodiment of the present invention.

FIG. 8 is an explanatory diagram showing a spectral unit and a photographing unit of a subject tracking device according to a fourth embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 object tracking device 3 person as object 4 right eye as predetermined part 8 telephoto incident light as transmitted light 9 wide-angle incident light as reflected light 11 half mirror as spectral means 21 photographing means 22 wide-angle lens 23 wide-angle camera 24 telephoto lens 25 Telephoto camera 26 Focusing group as lens group 27 Zoom magnification adjusting mechanism 35 Position detecting means 41 Shooting range changing means 71 Size detecting means 75 Zoom adjusting means 81 Sub position detecting means 85 Automatic focusing means 91 Proximity sensor 101 Moving reflector Movable mirror 102 Reflecting surface 131 Prism as light combining section 141 Wide-angle optical shutter as wide-angle light shielding section 151 Telephoto shutter as telephoto shielding section 161 Image sensor

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5B047 AA07 DC06 DC09 5C022 AA15 AB22 AB62 AB63 AB66 AC27 AC52 AC54 AC55 AC69 AC74 5C054 AA01 CA04 CA05 CC03 CF06 CG03 CG06 EA01 FC12 FC13 FF02 HA31

Claims (14)

[Claims] 1. A photographing means having a telephoto lens capable of changing a focal length and photographing a wide-angle image and a telephoto image, and detecting a position of a predetermined portion of a subject in the wide-angle image photographed by the photographing means. A position detection unit, based on the position information of the predetermined portion of the subject detected by the position detection unit, to a position where the predetermined portion of the subject is photographed substantially at the center of the wide-angle image photographed by the photographing unit; A subject tracking apparatus comprising: a photographing range changing unit that moves a photographing unit to change a photographing range of the photographing unit. 2. A spectroscopic means for dispersing incident light into transmitted light and reflected light, and a wide-angle lens having an optical axis disposed on one of central lights of the transmitted light and reflected light separated by the dispersing means. A wide-angle camera having a telephoto lens having an optical axis disposed on the other central light of the transmitted light and the reflected light separated by the spectral means, and the wide-angle lens is provided by the spectral means. A photographing means in which the wide-angle camera and the telephoto camera are arranged in a state where the optical axes of the telephoto lenses are aligned; and a position of a predetermined portion of the subject in a wide-angle image photographed by the wide-angle camera of the photographing means. A position detecting means for detecting, based on position information of a predetermined part of the subject detected by the position detecting means, Of the predetermined portion to a position to be photographed, the subject tracking apparatus that was characterized by that and a shooting range changing means for changing the imaging range of the imaging unit by moving the imaging means. 3. The subject tracking apparatus according to claim 2, wherein the wide-angle lens and the telephoto lens have a common lens group. 4. The subject tracking apparatus according to claim 2, wherein the light splitting unit splits incident light into infrared light and visible light. 5. Spectral means for separating incident light into transmitted light and reflected light, and an optical axis is arranged on central light of wide-angle incident light, which is one of the transmitted light and reflected light separated by the light separating means. A wide-angle lens provided, a telephoto lens having an optical axis disposed on the central light of telescopic incident light, which is the other of the transmitted light and the reflected light separated by the spectral means, after passing through the wide-angle lens. Photosynthesis that is disposed on the central light of the wide-angle incident light and on the central light of the telephoto-incident light after passing through the telephoto lens, and combines and outputs the central lights of the wide-angle incident light and the telescopic incident light respectively. Department,
A wide-angle light-shielding portion that is disposed on the central light of the wide-angle incident light between the light-synthesizing section and the light-splitting means and that transmits or blocks the wide-angle incident light; A telephoto shielding unit disposed on the center light of the incident light for transmitting or blocking the telephoto incident light; and a wide-angle image or a telephoto image disposed on the center light of the light synthesized and output by the light combining unit. A photographing means provided with the wide-angle lens and the telephoto lens in a state where the optical axes of the wide-angle lens and the telephoto lens are aligned by the spectral means and the light combining section; Position detecting means for detecting the position of a predetermined portion of the subject in the wide-angle image captured by the camera, and the wide-angle light-shielding portion transmits the wide-angle incident light, and the In a state in which incident light is shielded and a predetermined portion of the subject is photographed in a wide-angle image of the imaging device of the photographing unit, the imaging is performed based on position information of the predetermined portion of the subject detected by the position detection unit. The photographing means is moved to a position for photographing a predetermined part of the subject at substantially the center of the wide-angle image photographed by the element, and the photographing range of the photographing means is changed, and the wide-angle light shielding portion blocks the wide-angle incident light. And a photographing range changing unit for transmitting the telephoto incident light by the telephoto shielding unit and causing the image pickup device to photograph a telephoto image. 6. The subject tracking apparatus according to claim 5, wherein the wide-angle lens and the telephoto lens have a common lens group. 7. The subject tracking apparatus according to claim 5, wherein the light splitting unit splits incident light into infrared light and visible light. 8. The photographing range changing means, if the predetermined part of the subject cannot be photographed in the telephoto image of the photographing means, again photographing the predetermined part of the subject in the wide-angle image of the photographing means. Moving the photographing means to a position where the predetermined part of the subject is photographed substantially at the center of the wide-angle image photographed by the photographing means, based on the position information of the predetermined part of the subject detected by the position detecting means. 8. The subject tracking apparatus according to claim 1, wherein a photographing range of the lever photographing means is changed. 9. The subject tracking apparatus according to claim 1, wherein the photographing means alternately switches between a wide-angle image and a telephoto image photographed by the photographing means at predetermined intervals. 10. The photographing range changing means includes a movable reflecting portion having a reflecting surface, and the movable reflecting portion is disposed on a lens optical axis of the photographing means with the reflecting surface facing the photographing means. 10. The subject tracking device according to claim 1, wherein an imaging range of the imaging unit is changed by rotating a movable reflection unit. 11. A telephoto lens of a photographing means, comprising: a zoom magnification adjusting mechanism; a size detecting means for detecting a size of a predetermined portion of a subject in a telephoto image photographed by the photographing means; The zoom magnification adjusting mechanism is set based on the size information of the predetermined part of the subject detected by the detection means, and the size of the predetermined part of the subject in the telephoto image of the photographing means is adjusted to the predetermined size. 11. The subject tracking device according to claim 1, further comprising a zoom adjusting unit that performs zooming. 12. A sub-position detecting means for detecting a position of a predetermined part of the subject in the telephoto image in a state where the subject is photographed in the telephoto image of the photographing means, The photographing range of the photographing unit is changed to a position where a predetermined region of the subject is photographed substantially at the center of the telephoto image photographed by the photographing unit, based on the positional information of the predetermined region of the subject detected by the detecting unit. 12. The subject tracking device according to claim 1, wherein 13. The subject tracking apparatus according to claim 1, further comprising an automatic focusing unit that automatically focuses on a telephoto image captured by the imaging unit. 14. A subject tracking apparatus according to claim 1, further comprising a proximity sensor for sensing the proximity of the subject to a photographable range of a wide-angle image photographed by the photographing means. .