JP2000333125A - Editing device and recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily put together an image displayed on a screen, etc. and another image into a single image by synthesizing a time information signal with a 1st video signal to generate and output a recording signal or synthesizing the time information signal with a 2nd video signal to generate and output a recording signal when the image of the 1st video signal is changed. SOLUTION: A recognition control part 107 monitors a 1st memory 105 and a 2nd memory 106, compares the 1st video signals stored in both memories 105 and 106 with each other when the 1st video signal is stored in the memory 105 or 106 and reads out a new 1st video signal stored in the memory 105 or 106 to output it to a recording signal generation part 103 if the inputted 1st video signal is changed. The part 103 synthesizes a voice signal, a 2nd video signal and a time information signal together or synthesizes a voice signal, a 1st image signal and a time information signal together to generate and output a recording signal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an editing apparatus for generating a recording signal for recording the contents of a presentation such as a conference or a presentation held using an image displayed on a screen, and an editing apparatus for generating the recording signal. The present invention relates to a recording device for recording.

[0002]

2. Description of the Related Art When making a presentation at a conference or a presentation, a sentence indicating the content of the presentation, a drawing or a photograph used for explanation, and the like are transferred to an overhead projector (OHP).
It is often displayed on a large screen using a Head Projector.

[0003] In recent years, texts showing the contents of presentations, figures or photographs used for explanations, etc. are converted into data, stored on a recording medium or a hard disk, etc., and when a presentation is made, personal information is used.
There is a method in which the stored data is read out using a computer, and a sentence indicating the content of the presentation, a diagram or a photograph used for explanation, and the like are displayed on a screen using a projector.

[0004] As described above, when recording the contents of a presentation made based on a sentence indicating the contents of a presentation displayed on a screen or a diagram or a photograph used for explanation, video and audio such as a video camera are used. An image capturing apparatus that records the image on a recording medium is used.

[0005]

When a conference or a presentation is photographed and recorded by using a photographing apparatus, if the photographer or the whole presentation hall is photographed at the center, the image displayed on the screen becomes smaller, and the figure or the photograph is reduced. Etc. cannot be recognized.
In addition, if the photographer mainly shoots the display image on the screen, the state of the presenter and the entire presentation hall cannot be understood. That is,
It is difficult to photograph a display image displayed on a screen as a clear video with one photographing device, and to photograph and record the presenter or the entire presentation hall.

In order to clearly capture the video of the presenter or the entire presentation hall and the video of the display image on the screen, it is necessary to separately capture the video using a plurality of capturing devices. In the case of combining two shot images into one image, the editing work takes time, and immediately after the meeting or the presentation, a recording medium recording the contents of the presentation is provided to the attendees of the meeting or the presentation. It is difficult.

According to the present invention, it is easy to combine a display image displayed on a screen or the like and an image other than the display image into one image, and a recording that records the contents of a conference or a presentation in a short time. It is an object of the present invention to provide an editing device and a recording device capable of producing a medium.

[0008]

According to a first aspect of the present invention, there is provided an editing apparatus for generating a recording signal using a first video signal, a second video signal, and a time information signal. A video recognition unit that outputs the first video signal when the video of the first video signal changes by monitoring, and generates and outputs a recording signal by synthesizing the time information signal and the second video signal; A recording signal generation unit that generates and outputs a recording signal by combining the signal and the first video signal.

According to a second aspect of the present invention, in the editing apparatus according to the first aspect, a recording signal is generated by synthesizing an audio signal input from the outside.

According to a third aspect of the present invention, in the editing apparatus according to the first aspect, when the first video signal is input, the recording signal generation unit transmits the first video signal for a predetermined time. It is characterized by outputting a recording signal synthesized with the time information signal.

According to a fourth aspect of the present invention, in the editing apparatus according to the first aspect, the recording signal generation section includes a timer for generating a time information signal to be added to the recording signal.

According to a fifth aspect of the present invention, there is provided a recording apparatus for generating a recording signal using a first video signal, a second video signal, and a time information signal and recording the recording signal on a recording medium. A video recognition unit that outputs the first video signal when the video of the first video signal changes by monitoring, and generates and outputs a recording signal by synthesizing the time information signal and the second video signal; A recording signal generation unit that generates and outputs a recording signal by combining the signal and the first video signal; and a recording unit that records a recording signal input from the recording signal generation unit on a recording medium. I have.

According to a sixth aspect of the present invention, in the editing apparatus of the fifth aspect, a recording signal is generated by synthesizing an audio signal inputted from the outside.

According to a seventh aspect of the present invention, in the recording apparatus according to the fifth aspect, when the first video signal is input, the recording signal generation section outputs the first video signal and the first video signal for a predetermined time. It is characterized by outputting a recording signal synthesized with the time information signal.

According to an eighth aspect of the present invention, in the editing apparatus according to the sixth aspect, the recording signal generation section includes a timer for generating a time information signal to be added to the recording signal.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic diagram showing a schematic configuration of an embodiment of the editing apparatus according to the present invention. In FIG. 1, an editing device 101 includes a video recognition unit 102, a recording signal generation unit 1
03. An audio signal, a time information signal, a first video signal, and a second video signal are externally input to the editing device 101.

The audio signal is a signal such as audio or music collected by a microphone or the like. The first video signal is a video signal obtained by photographing a display image such as a figure or a photograph projected on a screen by a photographing device such as a video camera or a personal computer.
It is a video signal such as a figure or a photograph sent from a computer. In the present embodiment, the first video signal will be described as a moving image signal transmitted from the photographing device, but may be a still image signal. The second video signal is a video signal of a moving image (for example, a video of the presenter or the entire presentation hall) captured by a capturing device such as a video camera. The time information signal is sent together with video information from a photographing device or a personal computer.

In FIG. 1, a video recognizing unit 102 monitors a first video signal input from the outside to determine whether or not the video of the first video signal has changed. One video signal is output to the recording signal generation unit 103.

That is, the video recognition section 102 determines whether or not the video of the first video signal is different from the previously input video, and if the video is different from the previously input video, The first video signal is output to the recording signal generator 103. When the first video signal is a moving image signal, the video recognizing unit 102 extracts one still image from the moving image at predetermined time intervals, and the extracted still image differs from the previously input still image. It is determined whether or not. If the first video signal is a still image signal, it is determined whether the still image is different from the previously input still image.

The image recognition unit 102 includes a signal processing unit 104,
First memory 105, second memory 106, recognition control unit 10
7 is provided.

The signal processing unit 104 performs signal processing on a first video signal input from the outside, and outputs the processed signal to a first memory 105 and a second memory 106 alternately. Signal processing unit 104
When the first video signal is an analog signal, the first video signal is converted into a digital signal and the first memory 105 or the second
When the first video signal is a signal that has been subjected to encoding, data compression, or the like, the first video signal is decoded, decompressed, or the like, and output to the first memory 105 or the second memory 106. I do.

When the first video signal is a moving image signal, the signal processing unit 104 converts a still image obtained at a predetermined time interval from a moving image in which a plurality of still images are consecutive, into the first memory 105 or the second memory 105. Output to the memory 106. Also, the first
When the video signal is a still image signal, the signal processing unit 104 performs signal processing when the still image signal is input, and outputs the still image signal to the first memory 105 or the second memory 106.

First memory 105 and second memory 106
Stores the first video signal output from the signal processing unit 104. For example, the first signal output from the signal processing unit 104
When the video signal A is input to the first memory 105, the next first video signal B output from the signal processing unit 104 is
The first video signal C input to the memory 106 and then output from the signal processing unit 104 is input to the first memory 105. Here, the first video signal A, the first video signal B, and the first video signal C are the first video signals sequentially output from the signal processing unit 104.

In the editing apparatus 101 of the present embodiment, the video recognition unit 102 is described as having the first memory 105 and the second memory 106, but may be three or more. In addition, even if it is one memory, the area for recording data may be divided into a plurality.

The recognition control unit 107 monitors the first memory 105 and the second memory 106, and stores the first video signal in the first memory 105 and the second memory 106 when the first video signal is input and stored in one of them. Comparing the first video signal thus obtained,
If it is determined that the input first video signal is a new first video signal, the new first video signal stored in the first memory 105 or the second memory 106 is read out, and the recording signal generation unit 103 Output to

For example, when the first video signal A stored first in the first memory 105 and the first video signal B stored later in the second memory 106 are different, the recognition control unit 107 It determines that a new first video signal has been input to the editing apparatus 101 from outside, reads the first video signal B stored in the second memory 106, and outputs it to the recording signal generation unit 103. The first video signal A stored in the first memory 105 is deleted, and then the first video signal C output from the signal processing unit 104 is stored in the first memory 105.

The recording signal generator 103 outputs the audio signal and the second
The video signal and the time information signal are combined, or the audio signal, the first video signal, and the time information signal are combined to generate and output a recording signal.

Specifically, when there is no input of the first video signal from the video recognition unit 102, a recording signal is generated by synthesizing the audio signal, the second video signal, and the time information signal input from the outside. And output. When the first video signal is input from the video recognition unit 102, the recording signal is synthesized by combining the first video signal input from the video recognition unit 102, the audio signal input from the outside, and the time information signal. Generate and output.

The time information signal is time information indicating the time from the start of recording. In the editing apparatus 101 of the present embodiment, the time information signal is a signal input from the outside, but when no time information signal is input from the outside, a timer (not shown) included in the recording signal generation unit 103 is provided. Generates a time information signal, and the recording signal generation unit 103 outputs the time information signal generated by the timer, the audio signal, and the first video signal or the second video signal.
Combines video signals.

The processing operation of the editing device 101 will be described with reference to FIG. FIG. 2 is a schematic diagram for explaining a processing operation in the editing apparatus of the present embodiment. FIG. 2A shows an audio signal input from a microphone or the like, and FIG. 2B shows a second video signal (moving image signal) input from the second photographing device.
FIG. 2C shows a first video signal (moving image signal and still image signal) input from the first photographing device or the like.
(D) shows a recording signal output by the recording signal generation unit. The recording signal is a signal obtained by combining a video signal, an audio signal, and a time information signal. However, in the recording signal shown in FIG. Show.

In FIG. 2, photographing by the second photographing device and sound collection by the microphone are started from time T1. As shown in FIGS. 2A and 2B, an audio signal, a moving image signal (second video signal), and a time information signal are input from the microphone and the second image capturing device to the editing device 101.

When the audio signal, the moving image signal (second video signal) and the time information signal are input to the editing apparatus 101, the recording signal generating unit 103 outputs the audio signal, the moving image signal (second video signal) and the time information. The signals are synthesized to generate and output a recording signal shown in FIG. Recording of the recording signal is started from time T1.

On the other hand, as shown in FIG. 2C, a moving image signal (first video signal) and a time information signal are input to the editing device 101 from time T1. The video recognition unit 102 of the editing apparatus 101 extracts a still image (first video signal) at predetermined time intervals from a moving image of a moving image signal (first video signal), and extracts a plurality of still images (first video signals). Signal) to detect whether or not the moving image (first video signal) has changed. When detecting that the moving image (first video signal) has changed at time T <b> 2, it outputs a still image signal A (first video signal) of the still image to the recording signal generation unit 103.

The recording signal generation unit 103 includes the video recognition unit 10
2 receives a still image signal A (first video signal)
As shown in FIG. 2D, a still image signal A input from the image recognizing unit 102 instead of the moving image signal (second image signal)
The recording signal is generated by combining the (first video signal), the audio signal, and the time information signal, and is output for a predetermined time t from time T2 to time T3.

The time information signal is input to the editing device 101 from the first photographing device and the second photographing device. When a plurality of time information signals are input from outside, one time information signal selected from the plurality of time information signals is used. Further, a time information signal generated by a timer of the recording signal generation unit 103 can be used. In the editing device 101 of the present embodiment, the recording signal generation unit 103 converts the time information signal output from the second photographing device and sent together with the second video signal,
A recording signal is generated by combining the first video signal and the audio signal or the second video signal and the audio signal.

The recording signal generating section 103 outputs a recording signal obtained by synthesizing a still image signal A (first video signal), an audio signal, and a time information signal in place of the moving image signal (second video signal). For example, the predetermined time is about several seconds. As shown in FIG. 2D, the recording signal generation unit 1
03 generates a recording signal by synthesizing a moving image signal (second video signal), an audio signal, and a time information signal instead of the still image signal A (first video signal) after time t, that is, from time T3. Output.

As shown in FIG. 2C, at time T4, the video recognizing unit 102 newly extracts a still video signal B (first video signal) from the video signal (first video signal) and generates a recording signal. When the still image signal B (first video signal) is input to the unit 103, the recording signal generation unit 103 outputs the moving image signal (second video signal).
The video signal is replaced with the still image signal B (first video signal), and the audio signal, the still image signal B (first video signal) and the time information signal are combined to generate a recording signal, and the recording signal is generated from time T4 to time T5.
It outputs for the time t until.

As shown in FIG. 2 (d), the recording signal generating section 103 replaces the audio signal, the time information signal and the still picture signal B (first video signal) with the moving picture signal from the time T5 when the time t has elapsed. (Second video signal) to generate and output a recording signal.

As described above, the editing device 101
Generates a recording signal by combining an audio signal, a second video signal (moving image signal), and a time information signal, and outputs the recording signal.
Detecting whether or not the image of the video signal (moving image signal) changes, and extracting a still image signal from the first video signal (moving image signal) when the image of the first video signal (moving signal) changes; A recording signal is generated by synthesizing the audio signal, the still image signal, and the time information signal, and is output only for a predetermined time t.

In the editing apparatus 101 of the present embodiment, the recording signal generation unit 103 generates a recording signal by synthesizing the first video signal or the second video signal, the audio signal, and the time information signal. A recording signal obtained by combining the first video signal or the second video signal and the time information signal may be generated and output. In this case, the audio signal is combined with the recording signal when recorded on the recording medium.

FIG. 3 is a schematic diagram for explaining a recording apparatus using an editing unit. In FIG. 3, the recording device 301
Has an editing unit 101 and a recording unit 302. In the recording device 301, the editing unit 101 includes the video recognition unit 10
2. It has a recording signal generation unit 103 and has the same configuration as the editing device 101 shown in FIG.

The recording section 302 starts recording the recording signal on the recording medium when the recording signal is input from the editing section 101, and when the recording signal is not input from the editing section 101,
The recording of the recording signal on the recording medium ends. Recording unit 302
Records a recording signal on a recording medium such as a video tape or an optical disk.

In the recording apparatus 301 of this embodiment, the recording section 302 is described as being provided in the recording apparatus 301, but is not limited to this. Editing unit 101
And the recording unit 302 are connected by a network,
The editing unit 101 may transmit a recording signal to the recording unit 302 via a network, and the recording unit 302 may record the recording signal.

For example, one recording unit 302 is installed, and a plurality of editing units 101 are installed in the recording unit 302 via a network.
May be connected. In such a case, the recording unit 101 records the recording signals transmitted from the plurality of editing units 101 as individual files. This makes it possible to build a database of the contents of presentations such as conferences and presentations, and to manage the presentation contents of multiple meetings and presentations in the database, making it easy to search for presentations. It can be carried out.

In FIG. 3, the figure displayed on the screen 303 is recorded on a recording medium as data and output to the projector 305 by the personal computer 304. Switching of the figure displayed on the screen 303 is performed by the personal computer 304. Projector 305 controls screen 30 based on data input from personal computer 304.
Figure 3 is displayed. The presenter 306 uses the screen 30
A presentation will be made using the diagram shown in FIG. The presenter 306 and the screen 303 correspond to the photographing device 30 such as a video recorder.
7 and the sound of the presenter 306 etc.
08 is collected.

An audio signal is input from the microphone 308 to the recording device 301, and a moving image signal and a time information signal are input from the photographing device 307. The recording device 301 includes a projector 305 from the personal computer 304.
The same video signal as the signal output to is input. It is assumed that the personal computer 304 outputs a still image signal when the video displayed on the screen 303 is switched. The recording device 301 records an audio signal, a time information signal, a moving image signal, and a still image signal on a recording medium.

FIG. 4 is a schematic diagram for explaining a recording signal (video signal) of the recording apparatus of this embodiment. FIG.
FIG. 4A shows a moving image signal input from the photographing apparatus, and FIG.
4B shows a still image signal input from a personal computer, and FIG. 4C shows a recording signal (video signal) recorded on a recording medium. The recording signal is a signal obtained by combining a video signal, an audio signal, and a time information signal. However, in the recording signal shown in FIG. Show.

In FIG. 3, first, the presenter 306 starts a presentation at time T1 without using the screen 303 and the projector 305. The photographing device 307 is the presenter 3
06 and a moving image signal of shooting the screen 303 are output to the recording device 301.

The recording signal generator 103 of the recording device 301
FIG. 4A shows an audio signal input from the microphone 308 and FIG.
The video signal and the time information signal input from the photographing device 307 shown in FIG. 4 are combined to generate a recording signal shown in FIG. The recording unit 302 includes the editing unit 1
When the recording signal is input from the recording signal generation unit 103 of No. 01, recording on the recording medium is started.

At time T 2, when a figure is projected on the screen 303 by the projector 305 under the control of the personal computer 304, the still image signal from the personal computer 304 is sent to the video recognition unit 102 of the recording device 301. Is entered. The video recognition unit 102 detects the input of the still image signal and outputs the still image signal to the recording signal generation unit 103.

The recording signal generation unit 103 combines the audio signal and the time information signal input from the microphone 308 with the still image signal input from the personal computer 304 shown in FIG. The recording signal shown in c) is generated and output to the recording unit 302.

The recording signal obtained by synthesizing the audio signal, the still image signal, and the time information is output to the recording unit 302 only during the time t from time T2 to time T3. From the time T3 when the time t has elapsed, the recording signal generation unit 103 determines the audio signal input from the microphone 308, the moving image signal input from the imaging device 307, and the time information signal, as shown in FIG. Are combined to generate a recording signal and output to the recording unit 302.

As shown in FIG. 4B, when the figure displayed on the screen 303 using the projector 305 until time T4 changes from time T5, the image recognition unit 10
2 judges that the still image signal has changed from time T5, and outputs a new still image signal from time T5 to the recording signal generation unit 103.
Output to The recording signal generation unit 103 combines the time information signal, the audio signal input from the microphone 308, and the still image signal shown in FIG. 4B to generate a recording signal shown in FIG. Output to 302.

The recording signal obtained by synthesizing the audio signal and the still image signal is output to the recording section 302 only during the time t from time T5 to time T6. From time T6 when time t has elapsed,
The recording signal generation unit 103 generates a recording signal by synthesizing the audio signal input from the microphone 308, the moving image signal input from the imaging device 307, and the time information signal.
Output to The recording unit 302 records the recording signal on a recording medium.

As described above, when there is no input of a still image signal from the outside, the recording device 301 combines the audio signal, the moving image signal, and the time information and adds the time information to the recording signal generated on the recording medium. Recording, when a still image signal is input from outside, a recording signal generated by combining the audio signal and the still image signal in place of the moving image signal and adding time information,
Recording is performed on the recording medium only for a predetermined time.

When a recording signal recorded on a recording medium is reproduced, audio is reproduced from an audio signal based on the time information signal, and a video signal is reproduced as a moving image signal based on the time information signal. Only when an image signal is recorded, the video of the still image signal is reproduced for a predetermined time.

Therefore, when the content of a presentation such as a conference or a presentation is recorded on a recording medium, the content of the presentation can be recorded as a moving image, so that the flow of the conference or the presentation can be grasped. Still images such as graphs and figures displayed on a screen or the like can also be recorded as clear still images from which characters and the like can be recognized.

When a signal recorded on a recording medium is reproduced, a reproduction start point can be specified by using a time information signal, so that a reproduction point can be easily specified.

In the recording device 301, the time information signal is obtained from a timer provided in the recording signal generating unit 103 of the editing unit 101, but the video signal (audio signal) output from the photographing device 307 such as a video camera is used. Signal (including a signal).

In the above-described editing device and recording device,
Although the recording signal is generated by synthesizing the audio signal, the video signal, and the time information signal, information (index information) indicating a still image is also recorded in the still image signal portion of the video signal. Good. By recording index information in the video signal, multiple still images can be displayed on the monitor screen using a personal computer, for example, and the user can select the still image and check the presentation from the desired position can do.

More specifically, a recording signal including index information indicating the position of a still picture signal is recorded on a recording medium, and a reproducing apparatus for reproducing the recording medium is connected to a personal computer. The personal computer displays a still image recorded on the recording medium on a monitor screen based on the index information of the recording signal. When the user selects a desired still image from a plurality of still images displayed on the screen of the monitor, the personal computer starts playback of the recorded signal from the time point selected based on the index information of the still image. Start to start.

As a result, it is possible to search for a position for confirming the content of a presentation based on a still image displayed on a screen in a conference, a presentation, or the like, so that the content of the presentation recorded on the recording medium is reproduced from the beginning. Then, the user can easily search for the desired position and confirm the content of the announcement without having to find the desired position to be confirmed.

In the editing device and the recording device described above, the video signal is output from the second photographing device.
Although the video signal and the first video signal output from the first photographing device are used as the first video signal, the present invention is not limited to this, and it is also possible to record three or more video signals output from three or more photographing devices on a recording medium. It can be used.

For example, the second image output from the second photographing device
The audio signal and the time information signal are combined with the video signal (moving image signal), and the first video signal or the third video signal, the audio signal, and the time information signal output from the first imaging device or the third imaging device, respectively. Can also be synthesized.

[0065]

According to the present invention, a display image displayed on a screen or the like and an image other than the display image can be easily combined into one image. Further, it is possible to produce a recording medium in which the contents of a presentation such as a conference or a presentation are recorded in a short time.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a schematic configuration of an embodiment of an editing apparatus according to the present invention.

FIG. 2 is a schematic diagram for explaining a processing operation in the editing apparatus according to the embodiment.

FIG. 3 is a schematic diagram for explaining a specific example when the editing apparatus according to the embodiment is used.

FIG. 4 is a schematic diagram for explaining a video signal of a recording signal recorded on a recording medium in a specific example of the editing apparatus of the embodiment.

[Explanation of symbols]

101 editing device (editing unit), 102 video recognition unit, 103 recording signal generation unit, 104 signal processing unit, 105 first memory, 106 second memory, 1
07 Recognition control unit. 301 recording device, 302
Recording unit, 303 screen, 304 personal computer, 305 projector, 306.
Presenter, 307 .. Photographing device, 308. Microphone.

Claims (8)

[Claims] 1. An editing apparatus for generating a recording signal using a first video signal, a second video signal, and a time information signal,
A video recognition unit that monitors the first video signal and outputs the first video signal when a video of the first video signal changes, and a recording signal that combines the time information signal and the second video signal. And a recording signal generation unit that generates and outputs a recording signal and generates and outputs a recording signal by combining the time information signal and the first video signal. 2. The editing apparatus according to claim 1, wherein said recording signal generating section generates a recording signal by synthesizing an audio signal inputted from the outside. 3. The editing apparatus according to claim 1, wherein the recording signal generation unit combines the first video signal and the time information signal for a predetermined time when the first video signal is input. An editing device for outputting a recorded signal. 4. The editing apparatus according to claim 1, wherein said recording signal generating section includes a timer for generating a time information signal to be added to said recording signal. 5. A recording apparatus for generating a recording signal using a first video signal, a second video signal, and a time information signal and recording the recording signal on a recording medium, wherein the first video signal is monitored to change the video. A video recognizing unit that outputs the first video signal in a case where the time information signal and the second video signal are combined to generate and output a recording signal. A recording apparatus comprising: a recording signal generation unit that generates and outputs a recording signal by synthesizing; and a recording unit that records a recording signal input from the recording signal generation unit on a recording medium. 6. A recording apparatus according to claim 5, wherein said recording signal generating section generates a recording signal by synthesizing an audio signal inputted from the outside. 7. The recording apparatus according to claim 5, wherein the recording signal generating section combines the first video signal and the time information signal for a predetermined time when the first video signal is input. A recording device for outputting a recording signal. 8. The recording apparatus according to claim 5, wherein said recording signal generation section includes a timer for generating a time information signal to be added to said recording signal.