JPH0514776A - Camera information storage device - Google Patents

Abstract

PURPOSE:To utilize a camera video and camera operation information after the recording a camera photographing. CONSTITUTION:The information of a pan angle, tilt angle, zoom amounts, focus amounts, and camera position, at the time of photographing by a television camera 1, is detected by a camera information detector 2, and encoded by a digital encoder 3. Afterwards, it is superimposed on the vertical blanking of a video signal from the camera 1, and recorded on a tape by a VTR 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera information storage device for storing camera images and information about camera operations.

[0002]

SUMMARY OF THE INVENTION According to the present invention, when a video image taken by a television camera is recorded on a recording medium such as a VTR, camera information such as a pan angle, a tilt angle, a zoom amount, a focus amount, a camera position, etc. of the camera can be displayed, for example. By recording simultaneously with the video in the vertical blanking of the video signal, for example, when the camera data is used for the production of an electronic studio set by computer graphics (CG), the recorded camera video and the camera are used. It allows the data to be used.

[0003]

2. Description of the Related Art Conventionally, camera information corresponding to a camera image has not been recorded.

[0004]

Therefore, the technique of using the camera information cannot be used after the camera photographing is performed. For example, C that follows camera operation
In the generation of the electronic studio set by G, there is a limit to the quality of the image that can be generated in real time, so it is necessary to perform generation in non-real time, but that was not possible.

An object of the present invention is to provide a camera information storage device that solves the above restrictions.

[0006]

In order to achieve the above object, the present invention provides at least one piece of information of a pan angle, a tilt angle, a zoom amount, a focus amount and a camera position when a picture is taken with a television camera from the television camera. It is characterized by comprising a detecting means for detecting and a recording means for recording the information obtained by the detecting means simultaneously with the video signal from the television camera.

[0007]

According to the present invention, when recording an image taken by a television camera on a recording medium such as a VTR, camera information such as a pan angle, a tilt angle, a zoom amount, a focus amount, a camera position, etc. of the camera is displayed, for example. , It records at the same time as the video in vertical blanking of the video signal.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIG.

The television camera 1 includes a camera information detector 2
Is attached, and this detector 2 is a TV camera 1
The pan angle, tilt angle, zoom amount, focus amount, and camera position are detected for each field in the video signal. The detected camera information is converted into digital data by the digital encoder 3, encoded into an appropriate format, and sent to the vertical blanking convolution device 4 for each field.

On the other hand, the video output of the television camera 1 is input to the vertical blanking superimposing unit 4, and the coded camera information from the digital encoder 4 is superposed on the unused portion of the vertical blanking. It The video signal including the camera information obtained in this way is output from the vertical blanking superposing unit 4 and recorded on the tape in the VTR 5.

Next, an embodiment of an apparatus for utilizing the camera information recorded on the VTR tape will be described with reference to FIG. Here, a system in which an electronic studio set is generated by CG based on camera information and is combined with a camera image will be described as an example. The video signal reproduced by the VTR 5 is applied to the camera information separator 6 to separate the camera information superimposed on the vertical blanking, and this is decoded by the digital decoder 7 into the original pan angle, tilt angle, zoom amount and focus. The camera information of the quantity and the camera position is returned and transferred to the memory 8 in the computer. On the other hand, the video signal from the camera information separator 6 is input to the image memory 9, and the CG computer 10 generates a CG image according to the camera information from the memory 8 and synthesizes the CG image with the image data in the image memory 9. Then, the composite image is output. Since the time code is usually recorded on the VTR tape, the CG computer 10 may use the time code reproduced by the VTR 5 to capture the camera information and the camera image one field at a time, or may perform the work. If a device capable of recording a plurality of fields is used in 9, it is possible to work by capturing camera information and camera images of a plurality of consecutive fields.

Although the camera information is superimposed on the vertical blanking of the camera video signal in the above, the camera information may be recorded on a track different from the video, such as a VTR audio track.

[0013]

According to the present invention, after the camera photographing is recorded, the camera operation information can be used together with the camera image.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of an apparatus for recording camera information together with a video signal in the present invention.

FIG. 2 is a diagram showing an example of reproducing recorded camera information and applying it to CG in the present invention.

[Explanation of symbols]

 1 TV camera 2 Camera information detector 3 Digital encoder 4 Vertical blanking superimposing device 5 VTR

Front Page Continuation (72) Inventor Kazuo Fukui 1-10-11 Kinuta, Setagaya-ku, Tokyo Inside the Japan Broadcasting Corporation Broadcasting Technology Laboratory

Claims (1)

[Claims] [Claim 1] The pan angle at the time of photographing with a television camera,
Detecting means for detecting at least one of the tilt angle, zoom amount, focus amount, and camera position from the television camera, and recording means for recording the information obtained by the detecting means at the same time as the video signal from the television camera. A camera information storage device comprising: