JPH10322708A - Behavior measuring ccd camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a CCD camera which is small, whose structure is simple and which can conveniently be used in a narrow space. SOLUTION: The camera is provided with three camera head parts 13a, 13b and 13c which independently incorporate CCD elements for R, G and B 11a, 11b and 11C and one VTR 15 taking in the image pickup signals of respective CCD elements 11a, 11b and 11c through CCU 14 and records them. When an image processor extracts a video recorded in VTR 15 for respective R, G and B and executes an image processing, the behaviors of three places, which are picked up by the camera head parts 13a, 13b and 13c, can individually be measured and only two CCD cameras are required even if a three dimensional behavior is measured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CCD camera used for measuring the behavior of an object such as an assembled part of a vehicle or a machine, a fixed structure, or a moving body.

[0002]

2. Description of the Related Art Conventionally, for example, to measure the three-dimensional behavior of an engine mounted on a vehicle, three targets 2a, 2b, 2c are attached to an engine 1 as shown in FIG. , 2c CCD from two orthogonal directions
The camera 3 captures an image, sends an image signal of each CCD camera 3 to an image processing device (not shown), and measures the behavior of each of the targets 2a, 2b, 2c by the image processing device.
The three-dimensional behavior of the entire engine 1 was measured.

In this case, as shown in FIG. 6, a CCD camera 3 includes a CCD device (charge-coupled device) 4 and an optical system 5.
And a video tape recorder (VTR) 8 which captures an image signal of the CCD element 4 via a camera controller (CCU) 7 and magnetically records the image signal. In the measurement of the three-dimensional behavior, the camera head 6 is fixed around the engine room of the vehicle from which the hood has been removed using a suitable mount, and the CCU 7 and the VTR 8 are arranged in the vehicle interior. Note that the camera head unit 6 is configured as a single-plate type in which the CCD elements 4 are arranged on a single plate.

[0004]

However, according to the above-described behavior measuring method, as shown in FIG. 7, a CCD comprising a camera head unit 6, a CCU 7, and a VTR 8 as a set is used.
Since two cameras 3 must be installed for each of the targets 2a, 2b, 2c, a total of six CCD cameras 3 are required, which makes it extremely difficult to install the camera 3 in a vehicle where there is not enough space. There was a problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has as its object the purpose of the present invention is to provide a small and simple structure and a behavior measuring C which can be conveniently used even in a small space.
It aims to provide a CD camera.

[0006]

In order to achieve the above-mentioned object, the present invention provides three types of CCD devices each having a built-in CCD device capable of distinguishing each color of red (R), green (G) and blue (B) independently. It is characterized by comprising a camera head unit and one magnetic recording unit that captures and records an image signal of a CCD element in each camera head unit via a camera controller (CCU).

In the CCD camera for behavior measurement configured as described above, images (video) captured by the CCD elements in the three camera heads are recorded in a single magnetic recording unit. Since the CCD elements in the unit are independent for R, G, and B, if the images recorded in the magnetic recording unit are extracted for each of R, G, and B, the movement of each imaging point (target) can be independently determined. As a result, it is possible to grasp the behavior of three places by sharing one camera controller and the magnetic recording unit.

In the present invention, a general-purpose video tape recorder (VTR) can be used as the magnetic recording section. When measuring the behavior, the output terminal of the VTR is connected to an image processing apparatus.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a behavior measuring CCD according to the present invention.
It shows a camera. The CCD camera 10 has an R
(Red), G (green), B (blue) CCD
Elements 11a, 11b, 11c and optical systems 12a, 12
b, 12c, three camera heads 1 each independently built-in
3a, 13b, 13c and each camera head 13a, 1
One VTR (video tape recorder) 15 as a magnetic recording unit, which captures and records the image pickup signals of the CCD elements 11a, 11b, 11c in 3b, 13c via a CCU (camera controller) 14. .

The camera heads 13a, 13b, 13
c is the R, G, B CCD element 11 as shown in FIG.
An existing (commercially available) three-panel camera head unit 13 containing a, 11b, and 11c collectively is divided into units of R, G, and B CCD elements and made independent. In addition,
The CCU 14 and the VTR 15 are the same as the existing ones.

To use the CCD camera 10 configured as described above for measuring the three-dimensional behavior of the engine 1 described above,
As shown in FIG. 3, two CCD cameras 10 (shown here as 10-1 and 10-2) are prepared, and an image processing device 16 is prepared. The image processing device 16 is provided with a work station 17.

Each of the targets 2a, 2b, and 2c attached to the engine 1 is provided with two CCD cameras 10-
1, 10-2 camera head sections 13a, 13b, 13
c is directed from two orthogonal directions. In this case, the camera heads 13a, 13b, 13c containing the CCD elements 11a, 11b, 11c of the same color are connected to the targets 2a, 2b.
b, 2c. In this case, a camera head section 13a having a built-in R CCD element 11a for the target 2a, and a camera head section 13b having a G CCD element 11b built for the target 2b.
The camera head 13c having the B CCD element 11c is directed toward the target 2c. In FIG. 3, for convenience of description, R, G, and B symbols indicating color classification and numerical values of 1 and 2 indicating the distinction between the CCD cameras 10-1 and 10-2 are included in each camera head. It is attached.

On the other hand, each of the camera heads 13a, 13b,
Reference numeral 13c denotes CCs in the CCD cameras 10-1 and 10-2 which are collectively corresponding to the CCD cameras 10-1 and 10-2.
Connect to U14 and VTR15. In this case, from the CCU 14 in one CCD camera 10-1 to the other CCD
The VBS signal (video signal) is distributed to the CCU 14 in the camera 10-2 so that both are synchronized.

In measuring the three-dimensional behavior of the engine 1, three targets 2a, 2b,
2c is an R, G, B CCD element 11a, 11b, 11
c, two camera heads 13a, 1
3b and 13c, and their imaging signals are transmitted to the CCU 14 in the corresponding CCD cameras 10-1 and 10-2.
And via the VTR 15 to the image processing device 16.
At this time, the VTR in each CCD camera 10-1 and 10-2
As shown in FIG. 4, the video recorded in No. 15 has a state in which the targets 2a, 2b, and 2c overlap. The image processing device 16 converts R, G,
It has a function of extracting the color B and performing image processing for each color, whereby the behavior of each target 2a, 2b, 2c is measured. Further, the image processing device 16 has a function of measuring the three-dimensional behavior of the entire engine 1 by synthesizing the behavior of each of the targets 2a, 2b, 2c. Is displayed.

The camera heads 13a, 13b, 1
In order to eliminate the influence of the vibration of the target 3a, a reference target which is paired with the target 2a, 2b, 2c is fixed to a mount to which the camera heads 13a, 13b, 13c are fixed. The target is projected, and the behavior of each target 2a, 2b, 2c is measured from the relative movement.

According to the behavior measurement method described above, each CCD
The cameras 10-1 and 10-2 have three camera heads 1
Since one CCU 14 and VTR 15 are shared by 3a, 13b, and 13c,
The number of U14 and VTR15 is reduced to 1/3 of the conventional one (FIG. 7) as a whole, so that the in-vehicle performance is extremely improved.

The CCD camera 10 configured as described above
Can be used for measuring one-dimensional to three-dimensional behavior of various objects other than the measurement of the three-dimensional behavior of the engine 1. For example, by installing the three camera heads 13a, 13b, and 13c of the CCD camera 10 at appropriate intervals along the exhaust pipe of the vehicle, the overall vertical movement of the exhaust pipe can be measured. In addition,
It can also measure the shaking of a structure (building) due to an earthquake or wind, or the behavior of the tip of an arm of a handling device.

[0019]

As described above in detail, according to the behavior measuring CCD camera according to the present invention, the red, green and blue CCDs are used.
Since the elements are provided independently for the three camera heads, one camera controller and magnetic recording unit can be shared to grasp the behavior of three places, making it compact and simple in structure, and convenient to use even in narrow spaces You can do it.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a structure of a behavior measuring CCD camera according to the present invention.

FIG. 2 is a schematic diagram showing a structure of a camera head of an existing color CCD camera which is a basis of the present invention.

FIG. 3 is a schematic diagram showing an overall measurement system when the present CCD camera is used for measuring three-dimensional behavior of an engine.

FIG. 4 is a schematic diagram showing an example of a VTR image in the CCD camera.

FIG. 5 is a perspective view schematically showing an installation state of a CCD camera when measuring three-dimensional behavior of an engine.

FIG. 6 is a schematic diagram showing the structure of a conventional CCD camera.

FIG. 7 is a schematic diagram showing an arrangement state of a conventional CCD camera when measuring three-dimensional behavior of an engine.

[Explanation of symbols]

 Reference Signs List 10 CCD camera 11a CCD element for red (R) 11b CCD element for green (G) 11c CCD element for blue (B) 13a, 13b, 13c Camera head unit 14 Camera controller (CCU) 15 VTR (magnetic recording unit) 16 Image processing device

Claims (2)

[Claims] 1. Three camera heads each independently including a CCD element capable of distinguishing each color of red, green, and blue, and an image pickup signal of a CCD element in each camera head part is fetched via a camera controller. 1. A CCD camera for behavior measurement, comprising: a single magnetic recording unit for recording by a computer. 2. The behavior measuring CC according to claim 1, wherein the magnetic recording unit is a video tape recorder.
D camera.