JPH09205607A - Video recording device and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reproduce the environment at image pickup in the case of reproducing a video signal by recording environment information at image pickup. SOLUTION: At image pickup, a video and a sound are recorded by a CCD 1 and a microphone 4 and they are subject to prescribed signal processing and recorded on a magnetic tape by a VTR section 15. Furthermore, at this image pickup, simultaneously environment detectors 7, 9-14 detect the environment of a site at image pickup and environment information is acquired. The environment information is subject to prescribed signal processing by a circuit 8 and recorded in a prescribed area on the magnetic tape by the VTR section 15. In the case of reproduction, a monitor and a speaker are used to reproduce video/sound, for example, temperature and humidity are reproduced by an air- conditioner, wind direction and velocity are reproduced by a blower tilt and acceleration or the like are reproduced by a support controller, and illuminance is reproduced by a lighting lamp. Since the environment at site at image pickup is reproduced with the video/sound, the customer has an experience of a higher sense of reality.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video recording apparatus for recording environmental information at the time of video recording on a recording medium together with a video signal, and a video display for reproducing the video signal and the environmental information recorded on the recording medium. In addition, the present invention relates to a video playback device that reproduces the environment at the time of shooting.

[0002]

2. Description of the Related Art Originally, it can be said that the recording / reproduction of video / audio obtained by, for example, a video camera is intended to preserve / reproduce the situation at the photographing site. Therefore, the situation at the shooting site should be recorded as faithfully as possible. This makes it possible to more faithfully reproduce the situation at the shooting site.

On the other hand, in recent years, an expression method called virtual reality, for example, in which elements other than the images are added to the images in association with the combination of the images, is being put to practical use. Along with this, it is desired to obtain a further sense of reality in the reproduction of images. In order to realize such a realistic expression in the video reproduction, it is necessary to record various information other than the video / audio at the time of recording the video.

[0004]

However, in response to such a demand, the conventional analog video tape recorder can only record video and audio. In addition, in a digital signal recording type video tape recorder that has recently appeared, data other than video / audio signals can be flexibly recorded. However, even in this case, there is a problem in that it is not possible to mechanically capture the environment or situation of the site by detection by a sensor and add it to the video / audio data for recording.

Therefore, it is an object of the present invention to provide a video recording apparatus for recording environment information at the time of video recording together with a video signal, and a video reproducing apparatus for reproducing the environment at the time of video recording. .

[0006]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a video camera, a digital video recorder for digitally recording a video signal output from the video camera on a recording medium, and an image pickup by the video camera. And an acquisition unit for acquiring the environmental information associated with the above, and the acquired environmental information is recorded on a recording medium together with a video signal by a digital video recorder.

In order to solve the above-mentioned problems, the present invention reproduces a recording medium on which a video signal and environmental information associated with the video signal are reproduced, and reproduces the reproduced video signal for display. It is a video reproducing apparatus having a display means and an environment reproducing means for reproducing an environment based on reproduced environment information.

As described above, in the present invention, the environmental information at the time of video recording is recorded together with the video signal. Also,
At the time of reproduction, the reproduced video signal is reproduced and displayed, and the environment at the time of shooting is reproduced, so that video reproduction with a more realistic feeling is possible.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an example of the structure of a video recording apparatus according to the present invention. A subject image is incident on the CCD 1 via an optical system (not shown) including a zoom lens, a focus lens, a diaphragm, and the like. This incident subject image is converted into an electric signal by the CCD 1 into a video signal, which is supplied to the A / D converter 2 and converted into a digital signal by a predetermined method. This video signal converted into a digital signal is supplied to the encoder 3 and compression-coded by a predetermined method such as the MPEG2 system. This compression-encoded video signal is supplied to the digital signal processing circuit 6.

On the other hand, the voice is converted into an electric signal by the microphone 4 to be a voice signal. This audio signal
It is supplied to the A / D converter 5, and is sampled at a predetermined sampling frequency and converted into a digital signal, for example. The audio signal converted into the digital signal is supplied to the digital signal processing circuit 6.

These CCD 1, microphone 4,
The processing system for these signals is integrated with, for example, a video camera.

The thermometer 7, the hygrometer 9, the wind direction anemometer 10, the inclinometer 11, the color temperature illuminance meter 12, the accelerometer 13, and the directional meter 14 detect the surrounding environment at the time of photographing with the above video camera. This is a device for acquiring environmental information. The ambient temperature, humidity, and wind conditions are detected by the thermometer 7, hygrometer 9, and wind direction anemometer 10. Inclinometer 11
The tilt of the shooting site is detected by. Ambient brightness is detected by the color temperature illuminance meter 12. The acceleration is detected by the accelerometer 13, and the motion state is acquired. The direction meter 14 detects the azimuth using the geomagnetism.

For example, when taking a picture from the viewpoint of a passenger on a roller coaster, the ambient temperature, humidity and brightness are detected by the thermometer 7, the hygrometer 9 and the color temperature illuminance meter 12, and the weather of the day, etc. Environment information is acquired. Further, the wind direction anemometer 10, the inclinometer 11, and the accelerometer 13
This gives the roller coaster a sense of speed.
Further, the accelerometer 13 and the direction meter 14 acquire the state of the direction change of the roller coaster.

These thermometer 7, hygrometer 9, wind anemometer 1
Each of the detection devices such as 0, the inclinometer 11, the color temperature illuminance meter 12, the accelerometer 13, and the directional meter 14 can output the detection result as an analog signal or a digital signal to the outside. Each of the output signals of each of these detection devices is an A /
It is supplied to the D, MPU unit 8. In addition, this A / D, MP
The U unit 8 has an A / D conversion function, and the A / D, MPU
Of the output signals of the above-described detection devices supplied to the unit 8,
An analog signal is converted into a digital signal by this A / D conversion function.

The output signal of each detector is A / D, MPU.
Each of the output signals of these detection devices is continuously supplied to the unit 8 as A / D,
Under the control of the MPU unit 8, the digital signal processing circuit 6 is supplied at predetermined intervals, for example, once every minute and once every 30 frames of the video signal.

As described above, the video signal, the audio signal, and the environmental data are digitized into the digital signal processing circuit 6, and the video signal is subjected to predetermined processing such as compression coding and supplied. These supplied signals are multiplexed in the digital signal processing circuit 6, subjected to predetermined signal processing such as addition of error correction code, and supplied to the VTR unit 15.

The signal supplied to the VTR section 15 is subjected to recording signal processing such as recording coding and modulation with respect to the supplied signal, and recorded on a recording medium such as a magnetic tape. FIG. 2 shows an example of a recording pattern on the magnetic tape at this time. In this example, recording is performed with a helical track on the magnetic tape. In this embodiment, as shown in the figure, a data recording area is provided in a part of this helical track, and the above-mentioned environmental data is recorded in this data recording area. As the data recording area, for example, a subcode area in the recording format of the digital VTR can be used.

FIG. 3 shows an example of the structure of a video reproducing apparatus according to the present invention. The signal reproduced by the VTR unit 20 is supplied to the digital signal processing circuit 21. In the digital signal processing circuit 21, the supplied reproduction signal is subjected to processing such as error correction, and the digital video signal, digital audio signal and environment data multiplexed at the time of recording are separated.

Of the divided signals, the digital video signal is supplied to the decoder 22 and decompressed. this,
The decompressed digital video signal is sent to the D / A converter 2
3 is converted into an analog signal by a method and supplied as an analog video signal to the video monitor 24 for display.

Of the signals divided by the digital signal processing circuit 21, the digital audio signal is supplied to the D / A converter 25 and converted into an analog signal by a predetermined method to be an analog audio signal. . This analog audio signal is supplied to the speaker 26 and reproduced as audio.

Further, among the signals divided by the digital signal processing circuit 21, the environmental data is supplied to the MPU, D / A section 27. The MPU, D / A unit 27 is composed of a microprocessor and has a D / A conversion function. As described above, the environmental data includes output data of each detection device such as the thermometer 7, the hygrometer 9, the anemometer 10, the inclinometer 11, the color temperature illuminance meter 12, the accelerometer 13, and the direction meter 14. This environmental data is this MPU, D / A
It is converted into an analog signal in the section 27.

The environmental data converted into the analog signals are, for example, the air conditioner 28, the blower 29,
It is supplied as a control signal to the respective environment reproducing devices such as the column control device 30 and the lamp 31.

For example, among the environmental data, the thermometer 7
The temperature information and the humidity information detected by the hygrometer 9 are supplied to the air conditioner 28. The wind direction information and wind speed information detected by the wind direction anemometer 10 are supplied to the blower 29. Further, the tilt information, the acceleration information, and the azimuth information detected by the inclinometer 11, the accelerometer 13, and the directional meter 14 are supplied to the strut controller 30 that controls the stretchable strut. Furthermore, the illuminance information and the color temperature information detected by the color temperature illuminance meter 12 are the illumination lamp 31 with a color filter.
Is supplied to.

FIG. 4 shows, as an application example of the present invention, an example of a small room 40 in which a video monitor 24 and a speaker 26 are arranged, and further, the above environment reproducing devices are arranged.
The small chamber 40 is supported by four stretchable columns 42, each of which is controlled by the column controller 30. In addition, a plurality of chairs 41 are arranged forward in the small room 40 so that an audience can sit.

On the front wall of the small room 40, the video monitor 2
4 are arranged. The air conditioner 28 and the blower 29 are installed on the four walls of the small room 40. Speakers 26 are arranged at four corners near the ceiling of the small room 40. Further, a lighting lamp 31 is installed on the ceiling of the small room 40.

For the spectator sitting on the chair 41 in the small room 40, not only the image and the sound but also the temperature, humidity, wind direction, wind speed, inclination, acceleration at the photographed site by the system as described above. , Illuminance and color temperature are reproduced.
Therefore, the audience can have a high sense of reality that has never existed before.

An example will be described using the example of the roller coaster described above. A video image is reproduced on the video monitor 24 and a sound is reproduced by the speaker 26, and the air conditioner 28 is controlled by the temperature and humidity information. The temperature and humidity in the small room 40 are set so as to correspond to the shooting time, and the illuminating lamp 31 is controlled by the illuminance information and the color information, so that the audience feels the sense of the season and the weather. be able to.
Further, the blower 29 is controlled by the wind direction information and the wind speed information, and the spectators can feel a sense of speed because the spectators are sent the wind accompanying the running of the roller coaster along with the reproduction of the video / audio.

Further, in a situation where the roller coaster descends the slope at full speed, the four columns 42 are controlled by the column control device 30 controlled by the tilt information and the acceleration information in addition to the air flow, and the four columns 42 are controlled respectively. With the reproduction, for example, the two fronts contract at a predetermined speed, so that the spectator can experience the feeling of speed and acceleration when going down the slope.

In the scene where the roller coaster curves, the acceleration of the outside of the rotation is sensed when the direction is changed by the control of the strut controller 30 based on the azimuth information, which is performed along with the reproduction of the video / audio. The expansion and contraction of each of the four struts 42 allows the spectator to experience the roller coaster curving vigorously.

In the above description, the environmental information at the time of photographing is the thermometer 7, the hygrometer 9, the wind direction anemometer 10, the inclinometer 11, the color temperature illuminance meter 12, the accelerometer 13, and the direction meter 14. It is assumed that the information obtained by being detected by each detection device is supplied to the digital signal processing circuit 6 from each detection device through the A / D and MPU unit 8 and recorded. It is not limited to this example.

For example, the video recording apparatus according to the present invention is provided with an input section through which data can be input by a user, and environmental information detected by each detection apparatus is manually input from this input section to obtain environmental information. You may do it. At this time, the input environment information does not have to be actually detected.

In the above description, the magnetic tape is used as the recording medium, but the recording medium is not limited to this example. For example, a magnetic disk or a magneto-optical disk may be used as this recording medium.

[0033]

As described above, according to the present invention, environmental information such as temperature, humidity, wind direction, wind speed, inclination, illuminance, color temperature, acceleration, and azimuth at the time of shooting a video is recorded according to the present invention. Since it is recorded by the video recording device together with the signal, it is possible to more faithfully preserve the situation of the shooting site.

Further, according to the present invention, it is possible to control a device for reproducing the environment such as an air conditioner, a blower, a lighting lamp, and a retractable support column based on the recorded environment information during the video reproduction. Therefore, as compared with the case where only the video / audio is reproduced, there is an effect that the viewer can be more realistic.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of the configuration of a video recording device according to the present invention.

FIG. 2 is a schematic diagram showing an example of a recording pattern on a magnetic tape.

FIG. 3 is a block diagram showing an example of a configuration of a video reproducing apparatus according to the present invention.

FIG. 4 is a schematic diagram showing a small room which is an application example of the present invention.

[Explanation of symbols]

7 ... Thermometer, 8 ... A / D, MPU section, 9 ...
Hygrometer, 10 ... Wind direction anemometer, 11 ... Inclinometer, 1
2 ... Color temperature illuminance meter, 13 ... Accelerometer, 14 ...
-Direction indicator, 24 ... video monitor, 26 ... speaker, 27 ... D / A, MPU section, 28 ... air conditioner, 29 ... blower, 30 ... prop control device, 31 ... Lights

Claims (2)

[Claims] 1. A video camera, a digital video recorder for digitally recording a video signal output from the video camera on a recording medium, and an acquisition unit for acquiring environmental information associated with shooting by the video camera. A video recording apparatus, wherein the acquired environment information is recorded on the recording medium together with the video signal by the digital video recorder. 2. A reproducing means for reproducing a recording medium on which a video signal and environmental information associated with the video signal are recorded, a displaying means for reproducing and displaying the reproduced video signal, and the reproduced environmental information. An environment reproducing means for reproducing an environment based on the video reproducing apparatus.