JP4639278B2 - Photography method with digital camera using gimbal - Google Patents

Description

  The present invention relates to a photographing method using a digital camera using a gimbal, and in particular, when a photographing device is mounted on a flying object and a ground target is photographed from the flying flying object, the digital camera is digitally synchronized with the photographing timing of the digital camera. The present invention relates to a novel improvement for obtaining a still image of a target without blurring by rotating the camera to make the relative speed zero.

  As a method for mounting a conventional still camera of this type on a flying object and photographing a target on the ground, as disclosed in Non-Patent Document 1, the film of the film type camera itself is shuttered. The camera is moved only while the camera is open, and a still image is taken at a relative speed of zero.

http: //www.keystoneaerial surveys.com/camera.htm

Since the conventional method of shooting from a flying object using a camera is configured as described above, the following problems exist.
That is, when shooting with a still camera using a space stabilization device, for example, when shooting from a sky of 180 km and an altitude of 300 m, if the shutter speed is 1/300, about 17 cm during the time when this shutter is open. The camera moves.
In this case, in the case of a still camera, a still image can be taken by moving the film by that amount. However, in the case of a digital camera, it is impossible to move the image sensor. It was impossible to do.

An image capturing method using a digital camera using a gimbal according to the present invention includes a frame supported by an attachment member via an elastic body, a roll frame provided on a roll gimbal shaft provided inside the frame, rotating the pitch frame located inside the Re et al provided the pitch gimbal shaft provided in the roll frame the roll frame, a digital camera provided on one surface of a pitch table of the pitch frame, the roll gimbal axis and the roll motor for, the projectile and the pitch motor for rotating the pitch gimbal axis, an imaging apparatus comprising the inertial measurement unit on the opposite side of the digital camera in the pitch table of the other surface mounted, when said projectile shooting ground targets in the digital camera during flight, the vertical downward the lens of the digital camera relative to the ground state And to flight, by rotating the digital camera is rotated the pitch gimbal axis at a controlled angular range based on the speed and the shutter timing of the previous SL projectile, ground target relative velocity is a method to shoot blur-free still images of the previous Symbol target you become zero.

Since the photographing method using the digital camera using the gimbal according to the present invention is configured as described above, the following effects can be obtained.
In other words, since the digital camera is rotated by rotating the pitch gimbal axis in accordance with the shooting timing of the digital camera, the relative speed becomes zero and a still image of the ground target can be taken. Aerial shooting is possible.

  In the present invention, when an imaging device is mounted on a flying object and a ground target is imaged from a flying object, the digital camera is rotated in accordance with the imaging timing of the digital camera so that the relative speed is zero, It is an object of the present invention to provide a photographing method using a digital camera using a gimbal that can obtain a still image of a target that is not present.

Hereinafter, preferred embodiments of a photographing method using a digital camera using a gimbal according to the present invention will be described with reference to the drawings.
In FIG. 1 and FIG. 2, what is denoted by reference numeral 1 is a frame, and this frame 1 is supported by an attachment member 3 through an elastic body 2.

A roll frame 6 is rotatably provided inside the frame body 1 via a roll gimbal shaft 5 that is rotated by a roll motor 4, and is rotated by a pitch motor 7 inside the roll frame 6. A pitch frame 9 is rotatably provided through a pitch gimbal shaft 8.

A pitch table 10 is provided on the pitch frame 9, and a digital camera 11 having a lens 11 a is provided on one surface of the pitch table 10, and a gyro device is provided on the other side of the pitch camera 10 on the opposite side of the digital camera 11. The inertial measurement device 12 is provided, and the imaging device 13 is configured by the above-described configuration together with the battery 12A for driving them.

  In the above-described configuration, the imaging device 13 is mounted on a flying object (not shown) such as an airplane, and the lens 11a of the digital camera 11 flies vertically downward with respect to the ground, and the target is captured in this state. Release the shutter.

  If this shutter timing is 1/300 and the speed of the flying object is 180 km / h, when the digital camera 11 is rotated by rotating the pitch gimbal shaft 8, the state is as shown in FIG. The camera strobe by the RTKGPS signal 20 as the timing is 3.3 mS, and the motion of the pitch gimbal shaft 8 at that time is ± 2.375 degrees. The shutter timing and the timing control of the pitch gimbal shaft 8 are performed via a control unit (not shown).

Accordingly, by rotating the pitch gimbal shaft 8 in this angular range and rotating the digital camera 11, even if the flying object is flying at 180 km / h, the ground target has a relative speed of zero. In this way, a still image can be taken and a blur-free image can be obtained.

  The present invention is applicable not only to shooting from a high-speed flying object, but also to shooting from a high position using a crane or the like.

It is a block diagram which shows the imaging device applied to the imaging | photography method by the digital camera using the gimbal by this invention. It is a top view of FIG. 2 is a time chart showing operation control of the digital camera of FIG. 1 and a pitch gimbal axis.

1 Frame 4 Roll Motor 5 Roll Gimbal Shaft 6 Roll Frame 7 Pitch Motor 8 Pitch Gimbal Shaft 9 Pitch Frame
10 pitch table 11 digital camera
11a lens 12 inertial measuring device 12A battery 13 imaging device

Claims (1)

A frame (1) supported by an attachment member (3) via an elastic body (2), and a roll frame (6) provided on a roll gimbal shaft (5) provided inside the frame (1 ). and), the roll frames (the pitch frame located inside the pitch gimbal shaft provided in 6) (et provided 8) Re said roll frame (6) (9), the pitch frame (9) A digital camera (11) provided on one surface of the pitch table (10), a roll motor (4) for rotating the roll gimbal shaft (5), and for rotating the pitch gimbal shaft (8) the pitch motor (7), the other face inertial measurement unit (12) and consisting of an imaging device provided on the opposite side of the digital camera (11) and (13) the projectile of the pitch table (10) mounted, as the state of the case, the vertical downward the lens (11a) of said digital camera (11) relative to the ground that the projectile shooting ground targets with the digital camera (11) during flight And Xiang,
By rotating the digital camera (11) at a controlled angular range based on the speed and the shutter timing of the previous SL projectile rotates the pitch gimbal axis (8), ground target relative speed There a digital camera by imaging method using a gimbal, characterized in that to shoot without still images blur before Symbol target becomes zero.

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