JP3277423B2 - Video editing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to, for example, a plurality of VTRs.
The present invention relates to a video editing method suitable for editing a video tape using a (video tape recording / reproducing apparatus).

[0002]

2. Description of the Related Art Conventionally, when video signals reproduced from video tapes of a plurality of VTRs are edited and recorded on a video tape of one VTR, for example, a video editing apparatus having a system configuration shown in FIG. Had been used. In FIG. 4, reference numerals 1 and 2 denote first and second playback-side VTRs. The playback timing from the video tape in the first and second playback-side VTRs 1 and 2 is determined by a controller 7 that controls the entire editing. It is controlled.

[0005] A video signal V 1 output from the first reproducing side VTR 1 is supplied to a video effector 3.
The video effector 3 performs processing (hereinafter referred to as effect processing) for adding a special effect to an image as needed based on the control of the controller 7. Then, the video signal output from the video effector 3 is supplied to the video switcher 4. Further, the video signal V2 output from the second reproduction side VTR 2 is supplied to the video switcher 4.

[0004] The video switcher 4 appropriately switches the two video signals under the control of the controller 7 to provide one edited video signal V3. The video signal V3 is supplied to the recording side VTR 6. Record on videotape. The recording operation on the recording side VTR 6 is also performed based on the control of the controller 7. In addition, depending on the system configuration, as shown by the broken line in FIG. 4, the video signal V2 output from the second playback-side VTR 2 is also supplied to the video effector 3, and the process of combining the two-system video signals V1 and V2 is performed. Do.

[0005] The video signal V1 output from the first reproduction side VTR1 is supplied to the first sub-monitor 11 to be displayed, and the video signal V2 output from the second reproduction side VTR2 is converted to the second video signal. The data is supplied to the second sub monitor 12 and displayed. Also, the video signal V output from the video switcher 4
3 is supplied to the main monitor 13 and displayed.

An audio signal A1 output from the first reproducing VTR 1 and an audio signal A2 output from the second reproducing VTR 2 are supplied to the audio mixer 5, and based on the control of the controller 7, System audio signals A1, A2
Is mixed with the audio signal A3 of one system. Then, the synthesized audio signal A3 is supplied to the recording side VTR 6 and recorded on a video tape.

[0007] Then, the controller 7 transmits the time code data of the video tape mounted on each of the reproducing VTRs 1 and 2 and the recording VTR 6 to the controller 7.
The playback position and the recording position are determined on the basis of the time code supplied in the step (1), and the playback operation and the recording operation of each VTR 1, 2, and 6 are controlled. Therefore, the VTRs 1, 2, 6, and the controller 7 are connected so that bidirectional communication is possible. For this connection, for example, a communication interface of a standard such as RS-232C is used.

The processing by the video effector 3, video switcher 4, and audio mixer 5 is performed by the processing devices 3, 4, 5 when the time code of the VTR corresponding to the controller 7 becomes the code of the edit point. Is transmitted, and the process is started.

The video effector 3, the video switcher 4, the audio mixer 5, and the controller 7 are usually separately formed, and each has a built-in controller individually formed of a microcomputer. A personal computer may be used as the controller 7.

Using the editing system configured as described above, the recording-side VTR 6 based on the video material recorded on the video tape mounted on the two reproducing-side VTRs 1 and 2.
The edited video program can be recorded on a video tape attached to the PC.

Incidentally, as editing performed by the editing system having such a configuration, synchronous editing called sync / roll editing is sometimes performed. In the sync roll editing, the recording-side VTR starts recording simultaneously with the two reproducing-side VTRs simultaneously and continuously reproduced. In this state, two systems of video reproduced from the two reproduction side VTRs are simultaneously monitored, and a preferable one of the two systems of reproduced video is selected and switched, and recorded on the recording side VTR. This is an editing method that completes the video program.

In order to perform the sync / roll editing,
First, a plurality of material tapes taken as described below are obtained. For example, as shown in FIG. 3, a stage S of a concert or the like is continuously and simultaneously photographed by a plurality of (two in this case) video cameras C1 and C2 having different angles and the like, and photographed by the respective video cameras C1 and C2. The recorded video signals are recorded on different VTRs, and two material tapes A and B are recorded.
Get.

When sync / roll editing is performed using these two material tapes A and B, they are simultaneously performed at the same timing as when these two material tapes A and B are recorded (see FIG. 3). Playback is performed at timing t ₀ ), and the images on the two material tapes A and B are displayed on separate monitor receivers, and at the same time, the recording VTR starts recording at this timing t ₀ . In this state, the operator who operates the images displayed on the two monitors sees and appropriately switches to a better image material (at timings t ₁ , t ₂ ,.
Ii) The switched video is recorded on the recording side VTR. Therefore, when the reproduction of the two material tapes A and B is completed, the video program recorded on the recording side VTR is completed.

By performing sync roll editing in this way, the editing work efficiency using a plurality of material tapes obtained by simultaneous shooting is improved.

[0015]

However, when performing such a sync / roll editing, it is difficult to complete a perfect video program by one editing process described above. To check the editing status, and then perform the same editing again. That is,
First, as a rehearsal, do not operate the recording VTR,
Only the plurality of playback-side VTRs are played back at the same time, and the editing state is checked on the monitor screen. Then, if the confirmed editing state is good, a plurality of playback-side VTRs are simultaneously played back again, recording on the recording-side VTR is started, and sync roll editing for performing the same switching as during rehearsal is performed.

However, since the switching operation is performed manually, it is difficult to perform the editing by exactly the same switching operation as at the time of rehearsal. Even if the editing can be performed well at the time of rehearsal, there is a possibility that it will fail at the time of the actual production. And I had to start over and over until I could edit it. For this reason, editing often takes time as a result. Also,
The operator who performs the sync role editing needs to be careful not to make such a failure, so that the psychological burden at the time of the editing operation is large.

An object of the present invention is to provide a video editing method capable of easily performing this kind of sync roll editing.

[0018]

According to the present invention, as shown in FIG. 1, for example, a video signal based on first and second video materials reproduced simultaneously from first and second video signal reproducing means 1 and 2 is provided. Are appropriately switched by the video switching means 27 into one system video signal, and this one system video signal is stored in the video signal recording means 6.
In a video editing method for obtaining an edited video program by recording on a first and second video signal reproducing means 1 and 2,
The video signals of the first and second video materials which are simultaneously reproduced from the video signal are switched by the video switching means 27 based on a real-time input operation into one video signal, and the switching by the video switching means 27 at this time is performed. The information on the timing and the switching state is stored in the storage unit 34 connected to the control unit 31 of the video switching unit 27, and when the video signals of the first and second video materials are reproduced again simultaneously, the information is stored in the storage unit 34. Based on the information, the video switching means 27 reproduces the same switching as the switching by the input operation, and records one system of video signals obtained by the switching in the video signal recording means 6 as an edited video program. It is like that.

In the above case, the storage means 34 stores information of a special effect to be added to the video signal,
When the switching is reproduced based on the information stored in the storage means 34, the special effects added to the video are also reproduced.

[0020]

According to the present invention, the editing state at the time of rehearsal once stored in the storage means can be reproduced by an automatic operation, and when the editing is successfully performed at the time of rehearsal, the video program is completed in the edited state. Can be done.

In addition, by storing information of the special effect to be added to the video signal in the above case in the storage means at the same time,
Editing with special effects can also be reproduced.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. 1 to 3, the same reference numerals are given to portions corresponding to FIG. 4 described in the conventional example, and detailed description thereof will be omitted.

FIG. 1 is a diagram showing the configuration of a video editing apparatus to which the video editing method of the present embodiment is applied and its peripherals.
Indicates the entire video editing device, and the video editing device 20
Is connected with a function as an effector for adding a special effect to a supplied video signal, a function as a switcher for switching a plurality of input images, and a function as an audio mixer for changing a mixed state of a plurality of input sounds. As shown in FIG. 2, a video switcher unit 20a and a video switcher unit 20a are provided on the front of one editing device 20 as shown in FIG.
TR control section 20b and audio mixer section 20c
And a time code display section 35 are arranged.
Then, as shown in FIG. 1, the video editing apparatus 20 of the present example includes two reproduction-side VTRs 1 and 2 and one recording-side VTR 6.
Are connected.

The configuration of the video editing apparatus 20 will be described. The video signals reproduced from the first and second reproduction side VTRs 1 and 2 are supplied to separate video signal input terminals 2 respectively.
Video signals supplied to input terminals 21 and 22 and supplied to input terminals 21 and 22 are supplied to fixed contacts of changeover switches 23 and 24, respectively. By switching the movable contacts of the changeover switches 23 and 24, the video signal supplied from the first VTR 1 and the video signal supplied from the second VTR 2 are switched. This switching is controlled by the system controller 31 of the editing device 20.

Then, the video signal selected by the changeover switch 23 is supplied to the first frame memory 25, and the video signal selected by the changeover switch 24 is supplied to the second frame memory 26. This respective frame memory 2
Reference numerals 5 and 26 are for performing an effect process for adding a special effect to a video signal. For example, a multi-screen which divides a screen into a plurality, a mosaic-like video, a color of a video is changed, and the like. Various processing can be performed. This effect processing is controlled by the system controller 31. However, the video signal may be directly output from the frame memory without effect processing.

The video signals output from the frame memories 25 and 26 are supplied to the switcher unit 27. In the switcher unit 27, a process of selecting and outputting any one of the supplied two video signals (in some cases, combining and outputting the two video signals) is performed. The output video signal is selected based on the control of the controller 31. And this switcher unit 2
The video signal selected at 7 is supplied to a video signal output terminal 28 and supplied to the recording VTR 6 connected to the output terminal 28. The operation of the fader lever 32a in the video switcher unit 20a on the front panel shown in FIG. 2 selects two video signals. That is, when the fader lever 32a is tilted forward, the video of one system is selected and output, and when the fader lever 32a is tilted rearward, the video of the other system is selected.

For connection of the monitor receiver in this editing system, for example, a video signal output from the first reproduction side VTR 1 is supplied to the first sub monitor 11 and output from the second reproduction side VTR 2. The supplied video signal is supplied to the second sub monitor 12, and the video signal output from the video signal output terminal 28 and supplied to the recording side VTR 6 is supplied to the main monitor 13.

Next, the configuration around the system controller 31 of the video editing apparatus 20 will be described. The system controller 31 of the present embodiment is constituted by a microcomputer, and the operation information of the operation keys 32 arranged on the front of the apparatus is stored. Various controls are performed based on the operation of the operation keys 32. Also, this system controller 3
1, a time code counter 33 and a memory 34 are connected. The time code counter 33 is a circuit that internally has a reference synchronization pulse generating means and counts the generated synchronization pulses to generate time code data.
The obtained time code data is transferred to the system controller 3
Feed to 1. The memory 34 stores data necessary for control such as data of the set edit point, and the system controller 31 can read the stored data as needed. In this example, the data of the switching state in the switcher unit 27 at the time of the rehearsal of the sync / roll editing is used as the data of the editing point stored in the memory 34.
At this time, it is stored together with the time code data of the edit point.

Then, the system controller 31 includes:
A time code display 35 is connected to display the time code of each VTR.

Each V connected to the editing device 20
The control terminals of the TRs 1, 2, and 6 are connected to the communication terminal 36 of the editing apparatus 20, and control commands are sent from the system controller 31 via the communication terminal 36 to each of the VTRs 1, 2, and 6.
6 can be supplied. By transmitting the control command, the recording / reproducing operation of each of the VTRs 1, 2, and 6 is performed.
In addition, the time code data of the video tape mounted on each VTR is supplied from the VTRs 1, 2, 6 via the communication terminal 36 to the system controller 31.

Then, in the system controller 31,
The supplied time code of each VTR is displayed on the time code display unit 35, and the time code of each VTR is determined to control recording and reproduction.

Although the configuration of the audio signal mixer section is not shown, the audio signals reproduced from the reproduction side VTRs 1 and 2 are mixed and supplied to the recording side VTR 6.

Next, the operation when editing processing is performed using the editing apparatus of this embodiment will be described. Here, the case of performing sync / roll editing will be described with reference to FIG.
In order to perform the sync / roll editing, first, a stage S such as a concert is continuously and simultaneously photographed by a plurality of (two in this case) video cameras C1 and C2 having different angles and the like. , C2 are recorded by different VTRs to obtain two material tapes A and B.

Then, sync / roll editing is performed using these two material tapes A and B. In the case of this example, rehearsal of sync / roll editing is first performed. Here, the material tape A is mounted on the first reproduction-side VTR 1 and the material tape B is mounted on the second reproduction-side VTR 2.
Then, the first and second reproduction-side VTRs 1 and 2 reproduce the two material tapes A and B at the same timing (time t _{0 in} FIG. 3) at the same timing as when recording the two material tapes.
Images on the book material tapes A and B are displayed on separate sub monitors 11 and 12, respectively. And both monitors 11,
The operator views the image displayed on the video switch 12 and selects the preferred image from the fader lever 32a of the video switch unit 20a.
(See FIG. 2), the main monitor 1 connected to the output terminal 28
3 is displayed. During this rehearsal, the recording VTR 6 is not operated.

Information on the operation of the fader lever 32a in real time during the rehearsal is stored in a memory 34 connected to the system controller 31. The information stored at this time includes the time code of each of the playback-side VTRs 1 and 2 at the time when the fader lever 32a is operated, the state of switching at that time (information on which material was switched to which material, switching Transition time, screen switching method, etc.).

For example, in the example of FIG. 3, when the fader lever 32a is operated at the timings t ₁ , t ₂ ,... At the time of rehearsal, the memory 34 stores information relating to the switching at each timing.

In this embodiment, at the time of this rehearsal, when the video is switched or when it is not related to the switching, the frame memory 2 constituting the video effect unit is used.
When the processing for giving the special effect to the video is performed using the steps 5 and 26, the memory 34 stores the information on the state of giving the special effect and the time code information of the timing of giving the special effect.

At the stage where the reproduction of the images on the two material tapes A and B has been completed, the rehearsal is completed. If the person performing the editing operation determines that the rehearsal has been performed in a good editing state, the memory 3
4. Automatically execute sync / roll editing based on the information stored in step 4. As the automatic sync roll editing, first, the two material tapes A and B are rewound on the first and second reproducing VTRs 1 and 2 and are simultaneously reproduced again, and the recording on the recording VTR 6 is also performed. Let it start. Then, when the time code obtained by the reproduction in each of the VTRs 1 and 2 becomes the time code stored in the memory 34 at the time of rehearsal, based on the control information such as the switching state stored together with this time code, at the time of rehearsal, Reproduce the switching and special effects provided.

In this way, based on the information stored in the memory 34, the switching and the application of the special effects are reproduced to reproduce the recording-side VT.
By recording with R6, the reproduction of the two material tapes A and B at this time is completed, and at the same time, a tape on which the video program edited by the recording side VTR 6 is recorded is obtained.

After the rehearsal, the recording side V
Without recording in TR6, the first and second reproduction-side VTs
The two material tapes A and B are reproduced by R1 and R2, and based on the information stored in the memory 34, the editing state is confirmed again only by the display on the main monitor 13, and after confirming this, Automatic editing processing for obtaining the edited video program described above may be performed.

If the result of the rehearsal described above is not favorable, the user operates the predetermined operation key 32 to
What is necessary is just to erase the information stored in the memory 34 and start again from the rehearsal. Alternatively, only the rejected editing portions are partially rehearsed and the memory 34
May be partially corrected.

As described above, according to the editing method of this embodiment, the operation information at the time of rehearsal of the sync / roll editing is stored in the memory 34, and the sync / roll editing can be reproduced from the information stored in the memory 34. This greatly improves the workability of sync role editing. In other words, if you can make the edits you like once at the time of rehearsal, you can always obtain a video program with the same edit state, so there is no need for the editing operator to memorize or write down the edit state at the time of rehearsal, which greatly burdens the operator To be reduced. If the user does not like the rehearsal state, the rehearsal only needs to be performed again, and the recording on the recording side VTR 6 need not be performed again, leading to a reduction in the time required for editing.

In the above embodiment, two reproduction-side VTRs are used.
Although the description has been made using the editing system using the recording side VTR and one recording side VTR, the number of reproduction side VTRs and recording side VTRs may be increased. For example, three or more playback-side VTRs may be prepared, and sync roll editing may be performed from three or more material tapes. Further, a video recording device or a video reproducing device (for example, a recording / reproducing device using a video disk as a recording medium) other than the VTR may be used.

[0044]

According to the present invention, the editing state at the time of rehearsal once stored in the storage means can be reproduced by an automatic operation, and when the editing is successfully performed at the time of the rehearsal, the video program is reproduced in the edited state. The work can be completed, so-called sync / roll editing can be performed with improved workability, and the burden on the editor can be reduced.

In addition, by storing information of the special effect to be added to the video signal in the above case in the storage means at the same time,
Edits with special effects can also be reproduced, and more advanced sync and roll editing can be easily performed.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an editing apparatus used in an editing method according to an embodiment of the present invention and a configuration around the editing apparatus.

FIG. 2 is a plan view showing the appearance of an editing apparatus used in the editing method according to one embodiment of the present invention.

FIG. 3 is an explanatory diagram illustrating a sync / roll editing state according to an embodiment;

FIG. 4 is a configuration diagram showing a conventional editing system.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 first playback side VTR 2 second playback side VTR 6 recording side VTR 20 video editing device 21, 22 video signal input terminal 25 first frame memory 26 second frame memory 27 switcher unit 28 video signal output terminal 31 System controller 32 Operation keys 33 Time code counter 34 Memory 35 Time code display section 36 Communication terminal

Claims (2)

(57) [Claims] 1. A video signal based on first and second video materials simultaneously reproduced from first and second video signal reproducing means is appropriately switched by a video switching means to form one video signal. A video editing method for obtaining an edited video program by recording the video signal in a video signal recording means, wherein the video by the first and second video materials simultaneously reproduced from the first and second video signal reproduction means The signal is switched by the video switching means based on a real-time input operation into one system video signal, and information on the switching timing and the switching state at the video switching means at this time is sent to the control unit of the video switching means. When the video signals based on the first and second video materials are simultaneously reproduced again, the video data is stored in the storage device connected thereto, and the video data is stored in the storage device. By reproducing the same switching a switching by the input operation by switching means, video editing method recorded as one system video program edited video signals obtained by the switching to the video signal recording means. 2. A special effect added to a video signal is reproduced when the switching is reproduced based on the information stored in the storage means. 2. The video editing method according to claim 1, wherein: