JPS601978A - Remote control image pickup device - Google Patents

Abstract

PURPOSE:To change easily the installing location and number of sets of image pickup devices in response to an image pickup object by converting a position of an image pickup means and an object into a coordinate system and calculating the object position information and the image pickup means in this coordinate system to control the image pickup means. CONSTITUTION:A tracking controller 1 is a means to output position information of the moving object 8 by allowing the operator to observe a monitor television receiver or the like (not shown) and to operate a joy stick 1a and the position information of the object 8 outputted from the tracking controller 1 is inputted to a control operating device 3a for universal head system A, a control operating device 3b for universal head system B and a control operation device 3c for universal system C via communication lines 2a, 2b and 2c, respectively. The control operating devices 3a, 3b and 3c operate respectively a universal head system control signal and outputs the result to universal heads 5a, 5b and 5c via control cables 4a, 4b and 4c. Further, the additional universal head system is extended with similar constitution.

Description

[Detailed description of the invention] The present invention relates to a remotely controlled imaging device.

Generally, on a circular or elliptical competition field, racetrack, etc., multiple pan head systems each having an imager mounted on a pan head are placed at different positions to track a subject as it moves over the field, etc. Take pictures. In this case, an operator is assigned to each pan head system, and each operator moves the pan head of the pan head system in the left/right direction (hereinafter referred to as panning) or vertically (hereinafter referred to as tilting). ), and control the zoom, focus, etc. of the imaging device, or designate one of the plurality of pan head systems as the main pan head system and place an operator in this main pan head system to control the zoom, focus, etc. Control is performed by transmitting changes in the movement of the main pan head system to the sub pan head system using cams, etc. Therefore, in the former case, each trip head system requires an operator, and in the latter case, when the trip head system is moved to another location, it is necessary to replace the cam etc. It has the disadvantage of increasing costs.

In view of the drawbacks of the conventional example, the present invention replaces the positions of the imaging means, which is a pan head system, and the subject with a coordinate system, and calculates the positional information of the imaging means and the subject in this coordinate system,
An object of the present invention is to provide a remote-controlled imaging device that controls imaging means.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows one example of the present invention in the case of remotely controlling pan head systems A, B, and C, each consisting of a pan head 5a, an imager 6a, a pan head 5b and an imager 6b, and a pan head 5C and an imager 6C. This is a configuration diagram of the embodiment, and FIG. 2 is a layout diagram when the pan head systems A, r3, and C are arranged near a flat competition track 7.

2, the tracking controller 1 determines the position (described later) of a moving subject 8 (FIG. 2) by an operator observing a monitor television (not shown) or the like, operating a joystick 1a, and moving the subject 8 (described later). The position information of the subject 8 outputted by the tracking controller 1 is sent to the pan head system A's suppressing calculation device 3a and the pan head system A's pan head system A through communication lines 2al2b and 2C, respectively. Control calculation device 3b for system B, control calculation device 3 for pan head system C
It is input to C. Control calculation devices 3a, 3b, 3C7,
The pan head system control signals, which will be described later, are calculated and the results are sent to the control cable 4. Pan head 5 via a, '4b, 4c
Output shifted to a+5b+5C. Note that an additional pan head system can be added using the same configuration as above.

The operation of the above embodiment will be explained with reference to FIG. 2. First, the X-
Set the Y coordinate system. Therefore, the position information in the X-Y coordinates of the pan head systems A, B, and C is A(XA',
YA), B(XB, YB) IC(Xc, Yc,), and this value is constant. Here, the pan head system A. ,B,C are respectively I-1,,
I-IB, I-1c, and if the height of the subject 8 moving on the flat competition track 7 is ignored, the position information of the subject 8 can be expressed as (x, y).

When placing the pan head systems A, B, and C at the positions shown in FIG. 2, the above positions are stored in the control/arithmetic units 3a, 3b, and 3c, respectively. Next, when simultaneously tracking and photographing a moving subject 8 using the imaging devices (1a, 5b, 6C), the operator operates the joy snack 1a while observing a monitor TV, etc., and sends an analog signal to the tracking controller 1. (
(X, Y). The position information (X, Y) of the subject 8 processed by the tracking controller 1 is transmitted through the communication line 2a,
2”+2C to the control calculation devices 3a, 3b, respectively.
3c.

Next, to explain the operation of pan head system A, fltlj
The control arithmetic unit 3a calculates the horizontal movement angle of the pan head 5a from the x-y position a system K position t (XA, YA) of the pan head system A and the subject B (X, Y), i.e. Pan corner PA
NA is calculated by Y-YA PANA-Row 1-+QAX-XA. Here, QA is the direction toward the center of the nozzle angle of the pan head 5a. In addition, the arithmetic unit aat calculates the distance DA between the pan head system 8 and the subject 7 using DA-Yakusei 7, and then calculates the downward movement angle of the pan head 5a, that is, the tip angle TILTA. I-IA TILTA- theory]? Calculated by DA. Thus calculated Jt data Q end,
Transmitted to the pan head 5a via the control cable 4a',%J,it
, eight head systems are controlled. For pan head systems B and C and any additional pan head systems, the pan angle, tilt angle, and distance to the subject can be calculated using similar calculations. -I can.

Next, the zoom and focus control of the image pickup device 6a+6b+60 will be explained. For example, based on the distance to the object IliIDA calculated for the ray pan head ZOSTEM A, the height l of the object 8, and the zoom parameter ZA of the image pickup device 6a,
The size (height) of the object 8 in the screen photographed by the image pickup device 6a can be expressed as LA, LA--●ZA DA, and therefore, the image pickup device 6a6, LA ZA--・DA l If , the zoom control force ζ is calculated. (2) When photographing is performed such that the size of the object in the image screen (2) and A are constant, LA/l& will be constant, and therefore, if DA is calculated, it becomes possible to control the size of the subject.

Furthermore, the focus control of the imaging device 6a, the focusing control of the imaging device 6a,
is infinite and in focus (・force・distance ＋SD
The amount I of the lens of the image pickup device 6a when focusing on A is kf2 ■=? 1) It can be expressed as A-fA, and can be easily realized by calculating DA. Here, ``A is the focal length of the moving lens of the image pickup device 6a, and k is a constant.

In the above embodiment, the controller 1a was used to input the position (x, y) of the subject 8 to the tracking controller 1/roller 1, but it can be replaced with a low-return encoder. Display the track on the TV screen,
It is also possible to input by pressing a light receiving element such as a light pen against the position of the subject on the screen.

Furthermore, in the above embodiment, in order to simplify the explanation, the case where the competition trunk is flat, that is, the subject is on the X-Y coordinate system, was used as an example, but if the competition trunk is inclined, The position of the subject may be set in the x-y-z coordinate system. If the competition track surface has a constant curvature, the position information in the Z direction is a function of X and Y, and therefore,
The distance DAA between the camera platform system A and the subject is: DAA1 (X-XA)2-1-(Y-YA)2→-Giant (
x,y)-4-'h)2.

As explained above, since the positions of the subject and the imaging means are replaced with a coordinate system and the imaging means is remotely controlled, it is only necessary to deploy a single operator, and even if the imaging means is rearranged, the relevant calculations cannot be performed. Since it is only necessary to change the positional information within the apparatus, the installed position and number of imaging apparatuses can be easily changed depending on the object to be imaged, and in addition, an inexpensive remote-controlled J+θ imaging apparatus can be centrally displayed.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of one embodiment of the present invention, and FIG. 2 is a diagram of the first embodiment of the present invention.
It is a layout diagram when the pan head system shown in the figure is arranged in an X-Y coordinate system. 1... Tracking controllers 3a, 31], 3c... Control calculation device 8... Subjects A, B, C... Pan head system (imaging means) -426-

Claims (1)

[Claims] In a remote-controlled imaging device that tracks and photographs a subject using at least one imaging means, the position of the subject and the position of the imaging means are replaced with a coordinate system, and the position information of the subject in this coordinate system and each 1. A remote control imaging device characterized in that each imaging device is operated based on position information of the imaging device.