JP2000115635A - Video-editing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily perform fading with a small number of operating elements and with no reconnection of devices by providing a designation means which designates a fading mode, a fade means which fades the images in the fading mode that is designated by the designation means, etc. SOLUTION: Source fading is selected with push of a source fading switch 132, and only a source image is faded out with the push of an execution switch 134. When the switch 134 is pushed again under such conditions, the source image is faded in and a title and the source image are displayed. If a total switch 132 is pushed, while both the title and the source image are displayed, the total fading is selected and then an image where a title image and the source image are mixed together is faded out with push of the switch 134. Thus, it is possible to fade in/out the mixed image or to fade in/out only the source image.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a video editing apparatus used for an AV (audio / video) mixer or the like.

[0002]

2. Description of the Related Art When a video is edited, a method of superimposing a title (character or the like) on the video and ending the video is generally used, for example, when a video is ended, a character of "end" is added to the video. As a main method of this method, two methods, a source fade and a total fade, are known. The source fade is as shown in FIG.
FIG. 6 (B) shows an end method in which only a video fades out from a state in which a video (in this example, the scenery of Mt. Fuji in this example) and a title (in this example, "end") are superimposed and only the title remains, and a total fade is shown in FIG. In this manner, the video and the title are both faded out from the state where the video and the title are overlapped.

Conventionally, two devices, a mixer and a titler, are required to realize the source fade and the total fade. A mixer is a device that mixes two videos, and a titler is a device that inserts a title into a video. In order to realize the above-mentioned source fade using these devices, as shown in FIG.
Connect the mixer in the first stage and the titler in the second stage, and at the end of the video, use the previous stage mixer to make the background image a color screen (for example, white or black) and use the second titler to superimpose the title on the color screen Need to do. On the other hand, in order to realize total fade, as shown in FIG. 23 (B), a titler is connected to the first stage, and a mixer is connected to the second stage. It is necessary to perform an operation to fade out the entire screen of the video with the title to a color screen in a mixer at the subsequent stage.

In order to operate such a source fade and a total fade on one operation panel, for example, it is necessary to use an operation panel as shown in FIG. In FIG. 24, an input selector is a selection switch button for setting input images A, B, and C, and can select any one of “image”, “white background screen”, and “title” as an input image. it can. The fader 1 is an operator for manually switching between the input images A and B. When the operation knob is moved to the A side, the input image A
If the operation knob is moved to the B side, the screen gradually changes to the input image B. At the intermediate point, a screen in which the two images A and B are mixed at a mix ratio corresponding to the position of the operation knob is displayed. It is. When the fader 2 is moved to the AB side, the mixed image of the input screens A and B by the fader 1 is gradually displayed, and when the fader 2 is moved to the C side, the input image C is gradually displayed. A screen in which the two images AB and C are mixed at the appropriate mix ratio is displayed.

In order to perform source fade using this operation panel, input video A is set to "video", input video B is set to "white background screen", and input video C is set to "title". 1 is moved from the A side to the B side, and at the same time, the fader 2 is moved from the AB side to the C side. To perform the total fade, after setting the input images A, B, and C in the same manner as described above, while moving the fader 1 from the A side to the B side, at the same time, moving the fader 2 from the C side to the AB side. Operate to move.

The above is the end of the video.
The same is true when starting a video. That is, when starting the video, there are two ways of the source fade and the total fade. In this case, at the start of the video, at the start of the video, only the title (for example, the character of “mountain”) is projected on the background of the color back screen, and the video (for example, the scenery of Mt. Fuji) is gradually superimposed on the background with the fade-in. The method is a total fade, and is a method of starting to fade in a video and a video in which a title is superimposed.

[0007]

As described above, conventionally, when it is attempted to realize a total fade of a source fade using a mixer and a titler as a single device, it is necessary to change the connection of the device, And the total fade could not be switched instantly. Also, when attempting to operate source fade or total fade on the operation panel, many operators such as the number of faders and switch buttons for selecting input video are required, and two faders must be operated simultaneously. The operation was complicated and required skill.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and in video editing, fades can be easily performed in a mode such as a source fade and a total fade with a small number of operators without requiring reconnection of devices. The purpose is to be.

[0009]

[Means for Solving the Problems]

[0010] In order to solve the above-mentioned problems, a video editing apparatus according to the present invention comprises, as a basic form, input means for inputting video signals of a first video and a second video; Mixing means for mixing and outputting a video signal of the video and the second video, an operator for changing a mixing ratio of the video signal, and a total video obtained by mixing the first video and the second video Or a fader for fading an image in a fade mode designated by the designator. According to this configuration, if the fade mode is specified by the specifying unit, the fade unit performs the fade in the fade mode. Therefore, it is not necessary to change devices and the start and end of the video can be performed by a simple operation. Video fading can be performed at times.

[0011] The video editing apparatus described above can be configured to include a second designating means for designating whether the fade by the fade means is fade-in or fade-out. When fade-out is designated by the second designation means, for example, at the end of the video, etc., according to the fade mode designated by the designation means
A source fade that fades out the first video and leaves the second video, or a total fade that erases both the first video and the second video can be executed. When the fade-in is designated, a source fade for fading in the first image from a state in which only the second image is displayed, for example, at the start of the image, according to the fade mode designated by the designation means. Alternatively, a total fade in which both the first video and the second video are faded in can be executed.

Further, the above-mentioned video editing apparatus has a start instructing means for instructing a start of the execution of the fade by the fading means, and in accordance with an operation of the start instructing means, starts a fade in a designated mode. Can be configured. According to this configuration, after the fade mode of the video is specified by the specifying unit, and the start of the fade is instructed by the start instructing unit, the fade of the video starts in the selected fade mode. Without the need for
With a simple operation, the video can be faded at the start or end of the video.

[0013] The second image is composed of characters, figures,
The title image can be a still image or the like. This makes it easy to insert a title at the start or end of the video.

Further, the video editing apparatus described above can be configured to include setting means for arbitrarily setting the time for fading the first video and the total video, respectively.

The above-mentioned mixing means can be configured to include means for mixing the video output signal with the video signal of the background color screen. According to this configuration, a desired background color can be inserted into the source fade or the total fade. However, in addition to this, for example, when switching from the main video to the color video, the background color screen is inserted at the switching point. This makes it possible to express the lapse of time or the like of the video.

FIG. 1 is a diagram showing an example of realizing the above-mentioned video editing apparatus according to the present invention. FIG. 1 shows a panel surface of a video editing device capable of switching a fade mode by a simple operation. This video editing device includes a first video (source video) and a second video (sub video). And a means for fade-in / out of a total image obtained by mixing these, a means for fade-in / out of only a source image, and a means for fade-in / out of only a second image. Fades.

In FIG. 1, reference numeral 110 denotes a fader which is an operator for manually adjusting the mixing ratio of the first video (source video) and the second video (sub video). Switch 11
A switch 1 automatically starts moving the fader at a set speed (required time). Reference numeral 120 denotes a switch button group for selecting a second video (sub-video), a switch 121 is for selecting a video input that is input separately from the source video, and a switch 122 is for selecting a title image. is there. Reference numeral 130 denotes a switch group related to fade, and a switch 131 is used to select a white or black screen as a background color screen.
32 is for selecting a source fade, switch 133 is for selecting total fade, and switch 134 is for instructing execution of fade.

In the above panel diagram, a title is selected in the source video by selecting a title as the second video and moving the fade to the sub video. next,
By pressing the source fade switch 132, a source fade is selected, and when the execute switch 134 is pressed, only the source video is faded out. Again in this state,
When the execution switch 134 is pressed, the source video fades in, and both the title and the source video are displayed.

When the total switch 132 is pressed in the mixed display state, a total fade is selected, and when the execute switch 134 is pressed next, the mixed video of the source video and the title video is faded out. ing. This allows the title to be faded in / out to the source video, the mixed video to be faded in / out, or the source video only to be faded in / out.
You can easily out.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a diagram schematically showing an overall configuration of an AV mixer equipped with a video editing device as one embodiment of the present invention. In FIG. 2, a CPU 1 is a central processing unit that controls the entire apparatus, a RAM 2 is a random access memory that stores various data and provides a working memory area, and a ROM 3 stores a control program, various tables, and the like. The display 4 is an LCD (Liquid Crystal Display) for displaying various setting data, the display driver 5 is for driving and controlling the display 4, and the video / audio circuit 6 is a plurality of video / audio circuits. A hardware circuit for mixing the video signal and the audio signal, etc., respectively, an operator group 8 is an operator group for various settings / selections arranged on an operation panel of the AV mixer, and an interface 7 is for these images.・ CP with audio circuit 6 or operator group 8
A circuit for interfacing the transmission and reception of signals with U1, etc.
The title / still image file memory 9 is a memory that previously stores video data (compressed data) of various titles and still images, and is represented by, for example, a CD-ROM or a floppy disk.

FIG. 3 is an external view of the operation panel.
Various operation elements 8 and the display 4 are arranged on the operation panel. The operator group 8 is roughly divided into a video / audio switching switch button 20, a fade control switch button 21, a title / still image file selection switch button 22, and a manual video / sub video switching. 2 that is the control for
3, a switch button 24 for selecting a sub-picture, a switch button 25 for other various operations, and the like.

Here, a switch button 20 for video / audio switching is provided with a normal button 201 for selecting a normal mode in which video and audio are separately switched in accordance with the operation of a corresponding operating element, and a scene change. A color insert button 202 for selecting a color insert mode in which a color screen such as a white background screen or a black background screen is inserted at a video switch at the time of switching the video so that the audio also matches the video. Voice link button 20 for selecting voice link mode to switch
Consists of three.

The switch buttons 21 for fade control include a white / black button 211, a source mode button 212, a total mode button 213, and an execute button 2.
Consists of fourteen. These buttons are buttons for selecting / executing a fade-in / out method when a title is superimposed on a video.

That is, the source button 212 is a button for selecting the source fade mode. In the source fade mode, at the start of the video, the video fades in from the title only state to the background, and the video ends. At times, as shown in FIG. 6A, only the video fades out from the state where the video and the title are superimposed, and the title remains. Also, the total button 213 is
This button is used to select a total fade mode. In this total fade mode, at the start of the video, the video in which the video and the title are overlapped fades in together, and at the end of the video, as shown in FIG. To
Both the video and the title fade out from the state where the video and the title are superimposed.

The white / black button is a button for selecting whether the color of the back screen is white or black in the source fade mode and the total fade mode.

The execute button 214 is a button for instructing execution of fade-in and fade-out in the mode selected by the source button 212 or the total button 213. On the back side of the execution button 214, L
An ED is provided so that the lighting state can be confirmed through a button. Normally, the LED is turned off. When the execute button 214 is pressed while the LED is turned off, the fade-out starts and the LED is turned on (video end instruction function). When the execute button 214 is pressed while the LED is on, the fade-in starts and the LED turns off (video start instruction function).

The title / still image file switch button 22 is a button group for selecting a title / still image stored in the title / still image file memory 9.

The fader 23 is an operator for manually switching between the main image and the sub-image. The main image is moved as the operation knob is moved to the main image, and the sub-image is moved as the operation knob is moved to the sub-image. Is set at the position of the operation knob so that the mix ratio of the main video and the sub video is output so as to output more.

The auto take button 26 is an operator for automatically switching between the main image and the sub image. When the auto take button 26 is turned on, the set value manually operated by the fader 23 is ignored.

The sub video switch button 24 is used as a sub video for the video B input to the video / audio circuit 6.
And a title button 242 for selecting a title / still image.

Other buttons 25 include a cursor button 250 for moving a cursor, a value button 251 for setting a value, a setting button 252 for setting a mode to a setting mode, a menu button 253 for setting a mode to a menu mode, and a Yes / Yes / No button 254 for selecting No, capture button 256 for instructing capture of video B, character extraction button 257 for character extraction mode, and color processing mode A color processing button 258, a color removal button 259 for setting a color removal mode, and the like are provided.

FIG. 4 shows a detailed configuration of a video circuit portion related to video processing in the video / audio circuit 6 described above. In FIG. 4, video signals of a video A as a main video and a video B as a sub video are respectively input to this video circuit.
The video data of the title / still image selected by the still image file switch button 22 and transferred from the title / still image file memory 9 is stored as a sub-image. The video output includes these main video and sub video (video B or title /
Still images) can be output.

The pre-processing unit 31 receives the input main image A
From the video signal, and sends the separated synchronization signal to the timing generator 33 and the remaining video signal to the input terminal of the modulator 41.

The pre-processing section 32 has the same function as the pre-processing section 31 and separates a synchronizing signal from a video signal of an input video B as a sub-video. The signal is input to the converter 34, digitized, and then input to the main controller 36.

As described above, the video data of the title / still image (hereinafter simply referred to as a title image for convenience of description) read from the title / still image file memory 9 and decoded is stored in the memory 35 as described above. The video data of the title image is read out by the memory controller 36.

The timing generator 33 controls the timing for reading the memory based on the synchronization signal of the main video A from the pre-processing unit 31 so that the title picture stored in the memory 35 can be read out in synchronization with the main video A. It generates a signal and sends it to the memory controller 36.

When a title picture is selected as a sub picture by the sub picture switch button 24, the memory controller 36 supplies the picture data (digital value) of the title picture from the memory 35 based on the timing signal from the timing generator 33. Is read and the D / A converter 38
And outputs key data to be described later to the key output unit 39. The key output section 39 creates a key signal based on the key data and outputs the key signal to the multiplier 44. on the other hand,
When the input video B is selected as the sub video, the video data (digital value) of the input video B is temporarily stored in the memory, and is read out based on the timing signal, thereby synchronizing the video A with the video A. / A converter 38.

The key data input to the key output unit 39 is for extracting the outline of the title (character), and for example, along the edge of the outline of the title (or the frame surrounding the title), for example, 1 and 0 on the outside. For this, for example, a run-length code for encoding a character by facsimile or the like can be used. The key output unit 39 converts the key data into an analog key signal synchronized with the video signal, and outputs the analog key signal to the multiplier 44. That is,
This key signal can be said to be a video signal obtained by extracting a character portion (or a frame portion surrounding the character) from a video image of the character.

The D / A converter 38 converts the video data into an analog video signal by, for example, converting the color information into an analog color signal based on the input video data, and sends it to the input terminal of the modulator 42. .

The modulators 41, 42, and 43 have the same configuration, and each receives a video signal.
It has two input terminals, and mixes and switches two input video signals according to a control voltage input to the control terminal. In this embodiment, the modulator 4
1, 42 and 43 output the video signal input to the input terminal when the control voltage is 0, output the video signal input to the input terminal when the control voltage is the maximum value, Output a video signal mixed with On this occasion,
If the control voltage is gradually changed between 0 and the maximum value, video switching is performed by cross-fade, and if the control voltage is changed instantaneously, normal video switching is performed.

The back color generator 37 is for generating a back color to be inserted at the switching point when switching the image or the like, and the image signal of the back color is input to the input terminals of the modulators 41 and 42. . An output signal of the modulator 41 is input to an input terminal of the modulator 43, and an output signal of the modulator 42 is input to an input terminal of the modulator 43. Modulator 41,
The control voltage is input to the modulator 42 from the multi-channel D / A converter 40, and the control voltage is input to the modulator 43 from the multi-channel D / A converter via the multiplier 44. A key signal is input from the key output unit 39 to the other input terminal of the multiplier 44. Instruction data (digital values) for these control voltages are supplied from the CPU 1 to the multi-channel D / A converter 40 through the interface 7.

The output signal of the modulator 43 is output as a video output via a video encoder 45 and a video buffer amplifier 46. Here, the video encoder 45 adds the synchronization signal separated by the preprocessing unit 31 to the output video signal again.

FIG. 5 shows a detailed configuration of an audio circuit portion for performing audio processing in the video / audio circuit 6. This audio circuit comprises two circuits for the right channel and the left channel. The audio circuit receives an audio signal a for video A, an audio signal b for video B, and an external audio signal AUX such as BGM that is externally input regardless of the video A and B. A signal obtained by selecting or mixing an audio signal is output as an audio output.

In FIG. 5, a VCA (Voltage Controlled Amplifier)
Reference numerals 51 to 53 denote audio signals a, b, and A input to each of them.
UX is a circuit that adjusts the volume in accordance with the control voltage from the multi-channel D / A converter 56 and outputs the adjusted signal. The output signals are input to the adder 54. The adder 54 is a circuit for mixing the input signals, and the output signal is further output as an audio output via the VCA 55. This V
The CA 55 adjusts the volume level of the audio output according to the control voltage from the multi-channel D / A converter 56. In addition, instruction data (digital value) of a control voltage for each of the VCAs 51 to 53 and 55 is input from the CPU 1 to the multi-channel D / A converter 56 via the interface 7.

Hereinafter, the operation of the apparatus of this embodiment will be described with reference to an example at the end of an image. First, an outline of the operation of the video circuit shown in FIG. 2 will be described. The main image A is input to the modulator 41 via the preprocessing unit 31, mixed with the back color image by the modulator 41, and the mixed image is further input to the modulator 43.

On the other hand, when the video B is selected as the sub video, the sub video is input to the modulator 42 via the pre-processing unit 32, the memory controller 36, and the D / A converter 38, and is output as the sub video. When a title is selected, it is input to the modulator 42 via the memory 33, the memory controller 36, and the D / A converter 38. In the modulator 42, the sub video and the back color video are mixed, and the mixed video is further input to the modulator 43. Modulator 43
Mixes the output signals of the modulators 41 and 42 according to the control voltage to produce a video output signal.

The control voltage of the modulator 43 is
When the video B is selected as the sub video, the key output unit 39 outputs a key signal of all “1” to the multiplier 44 for the entire screen, and the title is selected. If it is, a key signal of all "1" is output to the inside of the outline of the character of the title, and a key signal of all "0" is output to the outside. When a title is selected, the multiplier 44 always outputs the maximum voltage in a portion outside the outline of the title.

In the video circuit of this embodiment, when performing the source fade, the modulator 42 selects the title, the modulator 43 selects the output side (inside the title outline) of the modulator 42, and the modulator 41 performs color conversion from the main video A. Switch to back screen video sequentially. When performing total fade, the modulator 41 sequentially switches from the main image A to the white background screen image, and the modulator 42 sequentially switches from the color background screen image to the title, while the modulator 43 is sequentially switched to the output side of the modulator 42. Switch to.

Hereinafter, various video switching operations by this embodiment will be described. In the following description, the control voltage of the modulator 41 is represented by C1, the control voltage of the modulator 42 is represented by C2, and the control voltage of the modulator 43 is represented by C3. When the sub-picture is a title, the control voltage C3 is a value by which the key signal is multiplied by the multiplier 44.

[Auto Take Operation] First, an auto take operation which is a basic operation in the AV mixer will be described with reference to FIGS. 7, 8 and 9. FIG. Now, fader 2
3 is tilted to the main video A side, while the input video B is selected by the video B button 241 as a sub video. As shown in FIG. 7, the main video A is a video of Mt. Fuji, and the sub video B is a video of a yacht. It is also assumed that the voice cooperation button 203 has been turned ON. When the auto take button 26 is turned on in this state, the screen is switched from the main video A to the sub video B by cross-fading, and in conjunction with this, the audio output is also cross-faded from audio a to audio b.

FIG. 9 shows how the control voltages C1, C2 and C3 change during the auto take. As shown in FIG. 9, both the control voltages C1 and C2 continuously output the maximum value, so that the modulator 41 outputs the main image A
, And the modulator 42 outputs the sub-image B. Then, the control voltage C3 gradually decreases from the maximum value to zero over a predetermined auto-take setting time, whereby the output video of the modulator 43 is switched from the main video A of the modulator 41 to the sub video B of the modulator 42. .

On the other hand, the title button 22
If the title ("end" in this example) is selected by turning on the auto take button 26,
The control voltage C3 is input to the modulator 43 after being multiplied by the key signal from the key output unit 39. Therefore, from the modulator 43, the title video from the modulator 42 is displayed in the title (character) portion on the screen, and the main video A from the modulator 41 is displayed in a portion other than the title.
Is output as an image. As a result, as shown in FIG. 8, a video is obtained in which the title is superimposed on the main video.

At this time, if the external audio insertion button 204 is OFF, as shown in FIG. 8, the audio output remains the audio a of the main video A, while the external audio insertion button 204 is ON. For example, as shown in FIG. 8, the audio output cross-fades from the audio a to the external audio B with the auto take.

[Total Fade Mode] Next, the total fade operation will be described. FIG. 10 and FIG. 11 are diagrams for explaining the total fade mode.
FIG. 10 shows the control voltages C1 and C in the total fade.
FIG. 11 illustrates a change state of video and audio during total fade, and FIG. 11 illustrates a change state of C3.

As described above, the title is selected by the title button 242 as the sub-picture, the main picture A and the title are superimposed by the auto take, and the total fade mode is set by the total button 213. Shall be. In this state, as shown in FIG. 10, the control voltages C1 and C2 have the maximum values, and the control voltage C3 has a value of zero.
As shown in the figure, the main video A (video of Mt. Fuji) and the title (the character of “end”) are superimposed and projected.

When the execution button 214 is turned on in this state, as shown in FIG. 10, the control voltage C1 gradually decreases to zero over a predetermined fade setting time, and the modulator 4
1, the white back screen is output, the control voltage C2 is gradually reduced to zero, and the white back screen is output from the modulator 42. The control voltage C3 is gradually increased to the maximum value, and the white back screen of the modulator 41 is output from the modulator 43. Is done. . As a result, as shown in FIG. 11, the mixed video of the main video A (Mt. Fuji) and the title (final) fades out together to form a white background screen.

In this case, the voice cooperation button 203
If the voice cooperation mode has been set in FIG.
As shown in the figure, the sound level of the audio a of the main video A gradually decreases (fade out) to zero with the fade out of the mixed video.

On the other hand, when the above-mentioned total fade is performed in a state where the audio cooperative mode is not set, as shown in FIG. 11, the sound a of the main video A still remains at the end of the total fade. Then, when the voice cooperation button 203 is turned on, the volume level of the voice a fades out toward zero from that point.

When the audio cooperative mode is set and the external audio AUX is selected as the audio input, as shown in FIG. 11, the external audio AUX is output as the audio accompanying the mixed video before the total fade. When the output is performed and the execution of the total fade is instructed, the volume level of the external audio AUX fades to zero with the fade-out of the mixed video.

In this case, if the voice cooperation mode before the total fade is OFF and is set to ON after the total fade, the voice cooperation button 203 is turned on as shown in FIG. External audio AUX against white background screen after total fade
Is output as an audio, and the external audio A
The volume level of UX fades out to zero.

[Source Fade Mode] Next, the source fade operation will be described. 12 and 13 are diagrams for explaining the source fade mode.
Are the control voltages C1, C2, C3 in the source fade.
FIG. 13 illustrates the switching state between video and audio during source fade.

When the title is selected by the title button 242 as the sub-picture and the source fade mode is set by the source button 212, as shown in FIG. 12, the control voltages C1 and C2 are the maximum values and the control voltage C3 is zero. As a result, as shown in FIG. 13, the main video A (Mt. Fuji) and the title (end) are superimposed and projected.

When the execution button 214 is turned on in this state, the control voltage C1 gradually decreases to zero after a predetermined fade set time as shown in FIG. The title is output from the modulator 42 by maintaining the voltage C2 at the maximum value, and the modulator 43 outputs the title from the modulator 42 by maintaining the control voltage C3 at zero. As a result, as shown in FIG.
In the mixed video of (Mt. Fuji) and the title (final), the main image gradually fades out and becomes a white background screen,
Only the title remains.

In this state, to further fade out the title, the auto take button 26 is turned on. As a result, as shown in FIG. 12, the control voltage C3 gradually increases from zero to the maximum voltage over a predetermined auto-take setting time, so that the modulator 43 outputs the white background screen of the modulator 41. FIG.
As shown in the figure, the title fades out and changes to a white background screen.

In the processing of the source fade, if the audio cooperation mode has already been set by the audio cooperation button 203, as shown in FIG. a is output as voice and the auto take button 26
Is turned on, the sound a is gradually reduced and muted.

On the other hand, as shown in FIG. 13, when the above-described total fade is performed in a state where the voice cooperation mode is not set, even if the title is switched to the white background screen by the auto take button 26, Voice a is still output as voice. Then, the voice cooperation button 20
The sound a is gradually reduced and then muted from the time when the voice cooperation is turned ON by the step S3.

When the audio cooperative mode is set and the external audio AUX is selected as the audio input, the external audio AUX is output as the audio accompanying the mixed video before the source fade, as shown in FIG. The external audio AUX continues to be output as audio even if execution of the source fade is instructed.
Is turned on and the title is gradually switched to the white background screen, the external audio AUX is also gradually muted accordingly.

As shown in FIG. 13, when the audio cooperation mode is OFF and the external audio AUX is ON before the total fade, the audio is changed to the main video A in accordance with the instruction to execute the source fade. Switching from audio to external audio AUX is performed by crossfading. This state does not change even if the title is switched to the white background screen by the auto take button 26. Then, the voice cooperation button 20
When 3 is turned on, the external audio AUX is gradually muted.

[Color Insert] Next, a color insert operation in the embodiment apparatus will be described. In this color insert operation, a back color screen (for example, a white back screen or a black back screen) is inserted at a screen change at the time of a scene change, so that, for example, the lapse of time between a video before switching and a video after switching is performed. Used for purposes such as expressing. Here, the description will be made assuming that the input video B is selected as the sub video.

FIGS. 14 and 15 show a color insert (I).
FIG. 14 shows a change state of each control voltage C1, C2, C3 at the time of color insertion, and FIG. 15 shows a state of switching between video and audio at the time of color insertion. Things.

The input image B (the image of the yacht) is selected by the image B button 241 as the sub image.
Currently, as shown in Fig. 5, the main image A (Mt. Fuji image)
Is output as a video. When the color insert button 202 is turned on in this state, the color insert mode is set.

In this state, the auto take button 26 is turned on.
As shown in FIG. 14, when the control voltage C1 gradually decreases, a video in which a white background screen is sequentially mixed with the video A is output from the modulator 41, and then the white is output for a predetermined color scene setting time. Only the back screen is output. After this color scene setting time, the control voltage C2 is gradually increased to the maximum value, so that the modulator 42 outputs an image in which the sub-image B (yacht) is sequentially mixed on the white background screen. .

On the other hand, the control voltage C3, which was initially the maximum value, gradually decreases to zero over the above-described color scene setting time, so that the image of the modulator 42 is output from the modulator 43 at the end of the color scene setting time. B is output. In other words, the video output from the modulator 43 is such that what was initially the main video A (Mt. Fuji) gradually fades out to the white background screen, temporarily becomes the white background screen, and then the sub video B (yacht) is displayed on the white background screen.
Gradually fades in.

As shown in FIG. 15, when the video is switched by the color insert, the audio output of the main video A gradually decreases to zero and the sub video B Can be made to gradually increase from zero (1/2 switching), or can be made silent (blank insert) for a color scene setting time at a switching point between the sound a and the sound b.

FIGS. 16 and 17 are views for explaining another embodiment of the color insert operation described above. This embodiment eliminates the color scene setting time in the color insert operation described above. FIG. 16 illustrates a change state of each of the control voltages C1, C2, and C3 in the other embodiment, and FIG. 15 illustrates a video switching state in the other embodiment.

As in the above-described embodiment, it is assumed that the main image A is output from the modulator 43 because the control voltages C1 and C3 are initially at the maximum value. Also,
It is assumed that the color insert button 202 has been turned ON.

In this state, the auto take button 26 is turned on.
Then, as shown in FIG. 16, as the control voltage C1 gradually decreases, a video in which a white background screen is mixed with the video A sequentially is output from the modulator 41, and only the white background screen is output soon. At the same time, the control voltage C2 is gradually increased to the maximum value, so that the modulator 42 outputs an image in which the sub-image B is sequentially mixed with the white background screen.

On the other hand, the control voltage C3 is different from the control voltages C1 and C2.
At the same time (half the time of the auto-take setting time), it instantaneously switches from the maximum value to zero. As a result, as shown in FIG. 17, the final video output from the modulator 43 is initially the main video A (Mt. Fuji).
Is gradually faded out to a white background screen and becomes a white background screen. As soon as the white background screen is reached, the sub-picture B (yacht) gradually fades in on the white background screen.

FIGS. 18 and 19 are views for explaining still another embodiment of the color insert operation described above. In this embodiment, the main image A and the sub-image b cross-fade when the image is switched in the color insert operation described above. FIG. 18 illustrates a change state of each of the control voltages C1, C2, and C3 in the other embodiment, and FIG. 19 illustrates a video switching state in the other embodiment.

As in the above-described embodiment, it is assumed that the main image A is output from the modulator 43 because the control voltages C1 and C3 are initially at the maximum value. Also,
It is assumed that the color insert button 202 has been turned ON.

In this state, the auto take button 26 is turned on.
Then, as shown in FIG. 16, as the control voltage C1 gradually decreases, a video in which a white background screen is mixed with the video A sequentially is output from the modulator 41, and only the white background screen is output eventually. Before the control voltage C1 becomes completely zero, the control voltage C2 is gradually increased to the maximum value, so that the modulator 42 outputs an image in which the sub-image B is sequentially mixed with the white background screen. Is done.

On the other hand, the control voltage C3 is different from the control voltages C1 and C2.
Are gradually switched from the maximum value to zero when the colors overlap (color overlap setting time). As a result, as shown in FIG. 19, the final video output from the modulator 43 is such that the main video A initially fades out to the white background screen while the sub video B
Then, the sub-picture B gradually fades in thereafter.

Next, an embodiment in which an auto take operation is performed while performing color insert will be described with reference to FIGS.
This will be described with reference to FIG. FIG. 20 shows how the control voltages C1, C2, and C3 change in this embodiment.
Reference numeral 2 describes a video switching state in this embodiment.

In this case, the control voltage C1 has the maximum value, and the modulator 41 always outputs the main image A. The control voltage C2 is zero, and the modulator 42 initially outputs a white background screen. However, the modulator 42 gradually increases toward the maximum value from half the time of the auto-take setting time, so that the modulator 4
2 outputs a title. The control voltage C3 gradually decreases from the maximum value when the auto-take is turned on, and becomes zero at half the time of the auto-take setting time. As a result, as shown in FIG. 22, the main image A (Mt. Fuji) is initially displayed on the screen, and then the cut-out portion of the title (“end”) is displayed on the image of Mt. Fuji by about half of the auto-take setting time. (White background) occurs, and then the title fades into the cutout.

The embodiment shown in FIG. 20 is a method in which the transition at which the title is inserted is clear. If the transition is to be made lighter, the control voltage C3 is automatically set as shown in FIG. What is necessary is just to make it change over the whole take setting time.

In the above description, the operation of the AV mixer when the video is ended is mainly described. However, the present invention is not limited to this. Even when the video is started, the source fade and the total fade are performed. It can be realized by a simple operation of the operation element. That is, in the above-described embodiment, when the execute button 214 is pressed, the fade-out starts, and when the fade-out is completed, the execute button 2
Fourteen LEDs light up. At this time, when the execute button 214 is pressed again, the fade-in is performed, and when the fade-in is completed, the LED is turned off.

Thus, at the start of the video, if the execute button 214 is pressed with the source fade selected,
The video A can be faded in from the display of only the title, and the superimposed video of the title and the video A can be faded in by pressing the execute button 214 with the total fade selected.

For example, in the case of a source fade, when a video is disclosed, only the title is displayed first, then the video is faded in, and then the title is faded out.
The source fade is selected, and the fader 23 is moved to the sub video side. Thus, first, it is confirmed that the title and the image A are displayed. Next, the execute button 214 is pressed. Then, the video A fades out, and only the title is displayed. From here, recording of the video for recording is started.
Next, when the execute button 214 is pressed, the video A fades in. When the auto take button 26 is pressed next, the fader 23 moves to the main video A side, and the title fades out.

For example, in the case of total fade, in order to fade in the title and the video at the same time when the video is disclosed, the total fade is selected and the fader 23 is selected.
To the sub-video side. Thus, first, it is confirmed that the title and the image A are displayed. Then execute button 2
Press 14. Then, the video A and the title fade out. From here, recording of the video for recording is started.
Next, when the execute button 214 is pressed, the video A and the title fade in at the same time. Next, the auto take button 26
When is pressed, the fader 23 moves to the main video A side, and the title fades out.

[0090]

As described above, according to the present invention, when editing a video, the source video is faded in / out while the title is left or the source video including the title is faded in / out. It is possible to perform an effective effect such as a flick with a simple operation using a small number of operators.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of realizing a video editing device according to the present invention.

FIG. 2 is a diagram schematically showing an overall configuration of an AV mixer equipped with a video editing device as one embodiment of the present invention.

FIG. 3 is an external view of an operation panel in the embodiment device.

FIG. 4 is a diagram showing a detailed configuration of a video circuit portion related to video processing in a video / audio circuit of the embodiment device.

FIG. 5 is a diagram illustrating a detailed configuration of an audio circuit portion related to audio processing in a video / audio circuit of the embodiment device.

FIG. 6 is a diagram illustrating a source fade and a total fade in the embodiment device.

FIG. 7 is a diagram for explaining an auto-take operation (when input video B is selected) in the embodiment device.

FIG. 8 is a diagram for explaining an auto-take operation (when a title is selected) in the embodiment device.

FIG. 9 is a diagram illustrating a change in a modulator control voltage during an auto-take operation in the embodiment device.

FIG. 10 is a diagram showing a change in modulator control voltage during a total fade operation in the device of the embodiment.

FIG. 11 is a diagram showing a control state of audio / video during a total fade operation in the apparatus of the embodiment.

FIG. 12 is a diagram showing a change in a modulator control voltage during a source fade operation in the device of the embodiment.

FIG. 13 is a diagram showing a control state of audio / video during a source fade operation in the embodiment device.

FIG. 14 is a color insert (I) in the embodiment device.
FIG. 7 is a diagram illustrating a change in a modulator control voltage during operation.

FIG. 15 shows a color insert (I) in the embodiment device.
It is a figure which shows the audio / video control state at the time of operation.

FIG. 16 shows a color insert (II) in the embodiment device.
FIG. 7 is a diagram illustrating a change in a modulator control voltage during operation.

FIG. 17 shows a color insert (II) in the embodiment device.
It is a figure which shows the audio / video control state at the time of operation.

FIG. 18 shows a color insert (III
FIG. 5 is a diagram showing a change in modulator control voltage during operation.

FIG. 19 is a view showing a color insert (III) in the apparatus according to the embodiment.
FIG. 4 is a diagram showing a control state of audio / video during operation.

FIG. 20 is a diagram showing a change in modulator control voltage during an auto take + color insert operation in the apparatus of the embodiment.

FIG. 21 is a diagram showing a change in a modulator control voltage during an auto take + color insert operation in the apparatus of the embodiment.

FIG. 22 is a diagram illustrating a video control state during an auto take + color insert operation in the embodiment device.

FIG. 23 is a diagram showing a connection relationship between a titler and a mixer when performing a source fade and a total fade in the related art.

FIG. 24 is a diagram showing an operation panel of a conventional device for performing source fade and total fade.

[Explanation of symbols]

 Reference Signs List 1 CPU (central processing unit) 2 RAM (random access memory) 3 ROM (read only memory) 4 display 5 display driver 6 video / audio circuit 7 interface 8 operator group 9 title / still image file memory Reference Signs List 20 switch button for video / audio switching 21 switch button for fade control 22 switch button for title / still image file 23 fader 24 switch button for sub-video 25 other switch buttons 31, 32 preprocessing unit 33 timing generator 34 A / D converter 35 Memory 36 Memory controller 37 Back color generator 38 D / A converter 39 Key output unit 40, 56 Multi-channel D / A converter 41-43 Modulator 44 Multiplier 45 Video encoder 46 Video buffer Width unit 51~53,55 VCA (voltage controlled amplifier) 54 adder

Claims (5)

[Claims] An input unit for inputting video signals of a first video and a second video; a mixing unit for mixing and outputting video signals of the first video and the second video; An operator for changing a mixing ratio of a video signal; and a designation for designating a fading mode of fading a total video obtained by mixing the first video and the second video or fading only the first video. And a fader for fading the video in a fade mode designated by the designation means. 2. The video editing apparatus according to claim 1, further comprising a second designation unit for designating whether the fade by the fade unit is a fade-in or a fade-out. 3. A fading device according to claim 1, further comprising a start instructing means for instructing a start of execution of a fade by said fading means, wherein a fade in a designated mode is started in response to an operation of said start instructing means. Video editing equipment. 4. The video editing apparatus according to claim 1, wherein a title picture is used as said second video. 5. The video editing apparatus according to claim 1, further comprising setting means for arbitrarily setting a time for fading the first video and the total video.