JP3199582U - Easy-to-use 3D camera system - Google Patents

Abstract

Provided is an easy-to-use 3D camera system suitable for 3D shooting that can easily focus a subject at a high speed. A left camera 7 and a right camera 6 arranged horizontally by a plane mirror 8 tilted at 45 degrees with three HD cameras attached with piezoelectric elements 21 provided on a lens cylinder 20 from camera image information 16. The central camera 5 captures the moving object, and the arithmetic processing reconstructs the signals of the right camera 6 and the left camera 7 to output a high-quality video, and stores the output order to control the transmission band. The output can be performed by the processor C and the input / output switching relay module, and can be performed by the second field counter and the DAC that perform integration and division so as to be compatible with multi-view broadcasting. [Selection] Figure 2

Description

  The present invention relates to an easy-to-use 3D camera system that can easily focus on a target subject in response to fast movement of the subject with high image quality in 3D shooting.

  A conventional 3D camera has a method in which two cameras are arranged side by side, the directions of the lenses are aligned with the direction of the subject, the subject is focused on one point, and the two camera bodies are tilted.

  For this reason, both cameras of the 3D camera are difficult to shoot a fast-moving subject because they simultaneously tilt the rig that fixes the camera and focus on one point of the subject. Moreover, practical use was impossible because of eye fatigue.

  In general, when shooting with the camera focused on the subject, focusing is basically performed with the subject stationary. When shooting a moving subject, the camera itself is fixed and the subject is focused at the moment the subject is stationary. It is common sense to shoot.

  When photographing a subject moving in the lateral direction, the reasoning is the same as preventing the blurring of the image by photographing while moving the camera itself in the same direction as the moving direction of the subject at the same speed.

  It is known that images taken with a digital camera can be viewed on a display, but when it is displayed on the display, focusing on the display will produce a clear image quality.

  Since the display surface of the display corresponds to the image sensor surface of the camera, focus information can be detected from the video and fed back for focus detection. The focus moves statically when the lens barrel moves back and forth, and comes into focus. It is known that a normal camera determines focus by AF, but attaches a piezoelectric element to a lens tube and applies a focus feedback signal to the piezoelectric element from an image to control and focus.

  In 3D shooting using a plurality of cameras, focus information is detected from an image that is also focused independently, and the lens barrel is controlled to focus.

  An object of the present invention is to provide an easy-to-use 3D camera system suitable for 3D shooting that enables a subject to be easily focused at a high speed.

  The present invention uses three HD cameras to face the subject, the central camera with the lens facing forward, the left camera placed sideways, and the plane mirror placed at an angle of 45 degrees in front of the right camera lens. The light from the light is reflected at 45 degrees and is incident on the lens part.

  A video focus detection processor that detects focus information from the video of each HD camera feeds back to the piezoelectric element provided in the lens tube and always focuses.

  Arithmetic processing to be sent from the three HD cameras in the minimum bandwidth for data processing necessary for transmission is expressed by the following equation.

The central camera is dedicated to 2D cameras that can shoot in HD image quality and can be used if there are subtitles.
In consideration of the transmission of computation 1 and computation 2 with video data after processing by the processor, the central camera video components, computation 1 and computation 2 are all HD image quality, and the computation processing is from the left end to the right end in pixel order of each camera. Arithmetic processing is performed correspondingly.
By performing the RGB color parallel processing, it becomes easy to reconstruct the right camera image and the left camera image in the calculation 3 and the calculation 4 on the receiver side.

In the first field where 2D video with subtitles is broadcast in an interlaced manner, the central camera video can be received using all the HD quality video on the front side. Of course, it becomes 2D video with subtitles.
In the second field, the receiver can improve the image quality by up-conversion, so that it can be broadcast in three divisions. A right camera image can be sent in S1, a low-quality image of the central camera image in S2, and a data identification signal for activating a computation function corresponding to computation 1, computation 2 and 3D in S3.

  The present invention enables high-quality transmission such as broadcasting that can easily shoot a 3D camera corresponding to the movement of a stationary or moving subject, and can eliminate unnecessary camera effort due to the movement and position of the subject.

1 is an overall configuration diagram of the present invention. It is detail drawing of the camera part of this invention. It is a figure of the processor part of this invention. It is a figure which shows the relationship of the calculation of multi view of this invention, and division | segmentation integration. It is a correlation diagram of the position of the subject of the camera unit of the present invention and the reflection angle. It is a figure of the image | video output part of this invention.

Hereinafter, an embodiment of the present invention will be described.
FIG. 1 is a diagram of the overall configuration of a 3D camera. Reference numeral 1 denotes a camera unit, 2 denotes a processor unit, and 3 denotes a video focus feedback detection means circuit unit. Reference numeral 4 denotes a video output unit.

  1 camera unit uses 3 HD cameras, with 20 lens cylinders and 21 piezoelectric elements provided with 21 piezoelectric elements, 9 lens units of 5 central camera (HD camera) are placed facing the subject, 6 right camera (HD camera) 7 left camera (HD camera) on the right side and the left plane on the left side, tilting the 8 plane mirror at an angle of 45 degrees in front of the 9 lens unit, and the 9 lens part of the 6 right camera (HD camera) and 7 left camera ( 8 plane mirrors are arranged on both sides of the 9 lens portion of the HD camera.

  The light of the subject is reflected by an 8-plane mirror disposed at an inclination of 45 degrees and enters 9 lens portions of each of the 6 right camera (HD camera) and 7 left camera (HD camera). Since the plane mirrors are arranged facing each other, it is easy to catch the subject. Since the light from the subject is reflected at 45 degrees no matter where the subject is in front of the 9 lens unit, the distance between the line segment connecting the 9 lens unit and the 8-plane mirror and the position of the subject increases as the distance increases. The closer it is, the smaller the angle. That is, the angle of light entering the 9 lens portion changes with a sense of perspective. Therefore, even if the 8-plane mirror is fixed, a certain range of subjects can be captured. I can do things. The angle of the light incident on the 8-plane mirror is wide, facing each other.

The two processor unit has the following configuration. The subtitle insertion process is performed by the 10 processor P on the video of the 5 central camera (HD camera), and only the video is directly input to the 12 processor B as it is from the 5 central camera (HD camera).
In the 2-processor unit that performs the operation, the operation 1 program is assembled in the 11 processor A, and the operation 2 program is assembled in the 12 processor B.
The number of fields constituting the screen is counted by a 14 field counter from the 13 field number detector, and the 15 processor C is activated to switch the input / output path so that the 6-camera video information can be appropriately processed. 15 processor C switches 22 input output switching modules.

When the camera output is transmitted wirelessly, on the receiver side, the program is incorporated in 17 processor D and the program is incorporated in 18 processor E.
The central camera video signal that does not include subtitles in arithmetic 2 and arithmetic 3 is input in arithmetic 3, so that the right camera video is reconstructed as in equation 3, and the arithmetic 2 signal, arithmetic 1 signal, and the central camera video without subtitles in arithmetic 4 Since it is input, the left camera image is reconstructed as shown in Equation 3.

The subtitle insertion process is performed from 5 central cameras (HD cameras) by 10 processors P, and the outputs of 6 right cameras (HD cameras) are simultaneously input to 12 processors B to perform calculation 2.
The outputs of the 6 right camera (HD camera) and 7 left camera (HD camera) are input to 11 processor A and the calculation 1 is performed.

  The 3 image focus feedback detection means circuit section is composed of a 17 image focus detection processor and 21 piezoelectric elements attached to 20 lens cylinders. When 21 piezoelectric elements slightly vibrate the 20 lens cylinders and focus, the 20 lens cylinders are stopped and focused. When the angle is shifted, the 20 lens tube starts to vibrate again. All cameras work alone.

  The 4-video output unit functions to recombine the form of transmission data by the 23 processor F instructing integration using all bands such as SD broadcast and HD broadcast divided into three as in multi-view broadcast. The number of fields from the 13 field number detector and the 24 second field counter is transmitted to the 23 processor F, and the instruction signal necessary to be within the high image quality or transmission band is transmitted via the 25 DAC via the 26 transmission system switching device in the HD system or multiview. Switch to the method from time to time. The 27 3D identification signal input is connected to the 23 processor F, and the number of fields “1” and “3” (odd number) is integrated, and the number “2” and “4” (even number) are divided. A three-dimensional broadcast using three cameras can be implemented by sending an identification signal by data broadcasting to make the operations 3 and 4 function in the data broadcasting. Since the calculation 3 and the calculation 4 are not performed unless the 27 3D identification signal input is output, the calculation 3 and the calculation 4 function when the 27 3D identification signal is input so that it can be distinguished from the three-division simultaneous broadcasting. It becomes 3 division broadcast by division simultaneous broadcast.

  With the above configuration, the structure and operation method of the 3D camera will be practical.

DESCRIPTION OF SYMBOLS 1 Camera part 2 Processor part 3 Image | video focus feedback detection means circuit part 4 Image | video output part 5 Central camera (HD camera)
6 Right camera (HD camera)
7 Left camera (HD camera)
8 Plane mirror 9 Lens unit 10 Processor P
11 Processor A
12 Processor B
13 Field number detector 14 Field counter 15 Processor C
16 Camera image information 17 Processor D
18 Processor E
19 Image focus detection processor 20 Lens cylinder 21 Piezoelectric element 22 Input / output switching module 23 Processor F
24 Second field counter 25 DAC
26 Transmission system switching device 27 3D identification signal input

Claims (3)

When the piezoelectric element is attached to the lens tube, the lens cylinder is always finely moved back and forth, and when the image focus feedback detecting means circuit unit is focused on by the image focus detection processor from the camera image information, before the lens cylinder is constituted by the HD camera which stops in addition to the piezoelectric element The center camera with the lens facing in the direction, the right camera placed sideways, and the left camera in front of the lens part, plane mirrors are placed on both sides tilted 45 degrees, and the center camera performs the subtitle insertion process A processor P that outputs only the video image of the central camera and a processor B that simultaneously calculates the video output of the central camera and the video output of the right camera, a processor A that simultaneously calculates the video output of the left camera and the right camera, and a video signal of the right camera. The processor D that performs the operation of reconstructing the right camera video signal, the right camera video and the output of the processor B Easy-to-use 3D camera system is characterized in that both the video output unit to obtain the center camera and the right camera and the left camera signal from the output of the processor E to obtain the left camera video signal by using the operation of subtracting the signal of Tsu Sa A. 2. The number of fields is counted by a field counter by pulses from a field number detection circuit, and each processor is started and stopped by a processor C, and the order of outputs of the central camera, the right camera and the left camera is assembled according to the number of fields. Easy to use 3D camera system. In the video output unit, the number of fields is counted by the second field counter with pulses from the field number detector, the processor F is addressed, and the integrated division instruction information is read with or without the 3D identification signal input, and transmitted via the DAC 3. An easy-to-use 3D camera system according to claim 1, wherein the switching device is switched to support a broadcasting format.

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