JPH1152968A - Video-karaoke device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to select whether or not a background video displaying a singer is displayed according to a taste of the singer, etc., and the feeling at the moment by arranging a display control means for displaying the photographed singer. SOLUTION: A video camera 4 is installed on a wall 2 of a room 1 as a photographing means to photograph a singer 3. On the other hand, a KARAOKE device 10 is provided with a commander 20 for video-controlling storing and reproducing of the singer's video photographed by the video camera, changeover, and synthesis of the video to be displayed on monitors 12, 14. The commander 20 has a CPU, and operates various controls required for performing KARAOKE music and reproducing background video. Moreover, the CPU detects a total quantity of movements in the video data outputted from the video camera 4, judges whether or not the singer exists, and then controls whether or not the video of the singer is displayed on the monitors 12, 14. Namely, this CPU functions as a part of the detection means and the display control means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video karaoke apparatus for displaying a background video while playing a karaoke song, and more particularly to a video karaoke apparatus capable of displaying a singer's video as a background video.

[0002]

2. Description of the Related Art Conventionally, a karaoke apparatus not only executes a karaoke performance but also displays a lyric telop and a background image matching the atmosphere of the tune on a monitor together with the karaoke performance. Devices are well known.

[0003] In such a video karaoke apparatus, the background video displayed on the monitor is the same karaoke music in the case of a karaoke apparatus in which the karaoke music and the video are integrally recorded on a recording medium. When playing, the same background video was always displayed.

[0004] Therefore, there is a problem that if the same karaoke song is sung many times, the same background image gradually gets tired.

Further, in the case of a communication karaoke apparatus which separates karaoke music data from background video data, particularly, in the case of a communication karaoke apparatus which distributes music data through a communication line, when the same karaoke music is played a plurality of times, a plurality of music pieces are reproduced each time. Background images with different patterns can be displayed.

Further, there has been proposed a karaoke apparatus in which a singer's image is captured in a background image separated from such karaoke song data and displayed on a monitor. In that case, it is considered effective to display a 3D image as the background image when the singer is captured in the background image in order to give a real feeling that the singer is in the background image. I have.

[0007]

However, such a singer is actually involved in the background image.
Even if a configuration is adopted in which a D image is displayed as a background video, if no singer is displayed in the background video, only a 3D image is displayed.

[0008] Such a 3D image may not be liked by some people. Even with such a configuration that the singer can be displayed on the background video, the singer sometimes feels inconvenient.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and it is intended to determine whether or not to display a background image displaying a singer according to the taste of the singer or the like and the mood at that time. It is an object of the present invention to provide a video karaoke apparatus capable of selecting a video karaoke device.

[0010]

In order to achieve this object, a video karaoke apparatus according to a first aspect of the present invention comprises a performance means for playing a karaoke song, and a background video displayed together with the performance by the performance means. For a video karaoke apparatus having a display means to perform, in particular, a photographing means for photographing a singer, a detecting means for detecting the presence of the singer, and when detecting the presence of the singer by the detecting means, Display control means for displaying the singer photographed by the photographing means on the display means.

[0011] In the video karaoke apparatus thus constructed, the performance means plays a karaoke song, and the display means displays a background image together with the performance by the performance means.

The photographing means photographs the singer, and the detecting means detects the presence of the singer.

When the display control means detects the presence of the singer by the detection means, the display means displays the singer photographed by the photographing means on the display means.

Therefore, when a singer wants to display his own image as a background image or in a background image,
When the presence of the self is detected by the detection means, the display control means causes the display means to display the image of the self photographed by the photographing means.

Therefore, unless the detecting means detects the presence of the singer, the image of the singer is not displayed by the display means. For example, if the singer himself does not want to display his own image on the display means, Since it is only necessary to sing in a place not detected by the detecting means, it is possible to select whether or not to display the figure of the player as a background image on the display means according to the singer's preference and mood at that time.

A video karaoke apparatus according to a second aspect is directed to the video karaoke apparatus according to the first aspect, and in particular, the display control means displays the singer by synthesizing the singer with a stereoscopic video. It is characterized by displaying on means.

Therefore, since the singer is synthesized with the stereoscopic image displayed on the display means, it is possible to give a sense of being in the display image of the display means.

As described above, the singer determines whether or not to display the singer's own image on the display means according to his or her own preference or the mood at that time. The choice can be made by deciding whether or not to sing in a place where it can be detected, but the following configuration may be adopted.
That is, the video karaoke apparatus according to claim 3 is directed to the video karaoke apparatus according to claim 1 or 2, and in particular, a state in which the display control means displays the singer on the display means; It is characterized by comprising a selection means capable of selecting a state in which the singer is not displayed.

[0019] In the video karaoke apparatus configured as described above, the selection means may select a state in which the display control means displays the singer on the display means and a state in which the singer is not displayed. It becomes possible.

Therefore, the singer operates the selection means without performing the operation of singing or not singing at the position detected by the detection means, and displays the figure of the singer on the display means. And a state not to be displayed.

A video karaoke apparatus according to a fourth aspect is directed to the video karaoke apparatus according to any one of the first to third aspects. In particular, the detection area of the detection means is used by a singer. It is characterized by being at least a part of an area of a stage to be played.

In the video karaoke apparatus thus configured, when the singer wants to display his / her own image on the display means, at least a part of the stage used by the singer, which is the detection area of the detection means. Sing in the area.
On the other hand, if you do not want to display your own image on the display means,
Singing may be performed in a place other than at least a part of the stage, which is a detection area of the detection means.

It should be noted that this partial area does not need to be in a state that can be clearly recognized by the singer in advance. For example, when the user stands in this area where the singer somehow sings, his or her own image is displayed. Even if the singer is configured to search for an area in which his or her own image is displayed, it is possible to make the singer more interesting.

Further, a video karaoke apparatus according to a fifth aspect is directed to the video karaoke apparatus according to any one of the first to fourth aspects, and in particular, the detecting means is based on a total motion amount of the video data. It is characterized by detecting the presence of a singer.

In the video karaoke apparatus configured as described above, since the detecting means detects the presence of the singer based on the total motion of the video data shot by the shooting means,
The photographing means for photographing the singer can be effectively used in the means for detecting the singer.

A video karaoke apparatus according to a sixth aspect is directed to the video karaoke apparatus according to any one of the first to fourth aspects, wherein the detecting means detects a change in pressure based on the weight of the singer. , Detecting the presence of a singer.

In the video karaoke apparatus configured as described above, for example, when a singer stands on the stage, the detecting means attached to the stage detects the pressure changed by the weight of the singer. , To detect the presence of a singer.

A video karaoke apparatus according to a seventh aspect is directed to the video karaoke apparatus according to any one of the first to fourth aspects, wherein the detecting means determines whether or not there is a reflected wave by infrared rays. It is characterized by detecting the presence of a singer.

The video karaoke apparatus configured as described above can be realized with a relatively simple configuration for detecting a singer, and can be reduced in cost.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a video karaoke apparatus according to the present invention will be described below with reference to the drawings.

First, FIG. 1 shows a main configuration of a karaoke apparatus which embodies the video karaoke apparatus of the present invention.
This will be described with reference to FIG.

FIG. 1 is an explanatory diagram showing a state in which a karaoke apparatus is installed in a room in a karaoke box.

As shown in FIG. 1, the karaoke apparatus 10
The karaoke box is installed in a room 1, and a video camera 4 as a photographing means of the present invention for photographing a singer 3 is mounted on a wall 2 of the room 1. When the singer 3 holds the microphone 17 and stands at the position shown in FIG.
It is mounted at a position where the whole body or upper body can be photographed.

As will be described later, the digital processing circuit 31 connected to the video camera 4 has a function as compression encoding means in the present invention for compressing image data captured therein. Further, as will be described later, a device for detecting the total amount of motion of the object being imaged is also provided in the function as the compression encoding means, and the presence of a singer is determined based on the total motion amount detection device. It is also possible to detect. In that sense, this video camera 4
Constitutes a part of the detection means in the present invention. Also,
The detection area by the video camera 4 is at least a part of the stage used by the singer, and specifically, as described above, specifically, the singer monitor 14 shown in FIG.
It is near where is installed.

The karaoke apparatus 10 includes a lyrics telop showing lyrics, a background image displayed on the background of the lyrics telop, a singer image showing the singer 3 sung by the video camera 4 and an image showing the song selection number. 12, a singer's monitor 14, and a CD-ROM, DVD (Digi
tal Video Disc) or a video player 6 as display means of the present invention for reproducing a laser disc.

The video player 6 can display a conventional two-dimensional video, and can display a three-dimensional video such as a 3D video.

In the present embodiment, the two-dimensional video and the 3D image can be reproduced from one housing. However, the two-dimensional video and the 3D image can be output from separate reproduction players. You may.

The karaoke apparatus 10 includes a karaoke tune (hereinafter, referred to as a karaoke tune), which is a tune composed of musical sounds, and a tune selection for making a reservation for the reproduction of the tune.
A control for receiving a request signal indicating a reservation request and a reproduction request of a selected song input by a user, and reading out karaoke song data corresponding to the karaoke song indicated by the request signal. And playback of the singer's video, monitor 12, 1
4 is provided with a commander 20 for performing video control such as switching of video displayed and synthesis.

Further, the karaoke apparatus 10 mixes the voice input from the microphones 17 and 18 with the karaoke tune, balances the volume of the voice and the karaoke tune, adjusts the echo, adjusts the delay, amplifies the mixing signal, and performs the performance. An amplifier 16 for controlling the pitch of a karaoke song (key control) and controlling high and low tones (tone control)
And a set of speakers 13 for reproducing the amplified signal output from the amplifier 16 as sound, and a remote controller 70 for remotely controlling the commander 20.

A plurality of speakers 13 are provided, one of which is mounted above the wall 2 with a space therebetween, and the other speaker 13 is not shown.

Next, the configuration of the commander 20 will be described with reference to FIG.
This will be described with reference to FIG.

FIG. 2A is an explanatory diagram of the front panel of the commander 20, and FIG. 2B is an explanatory diagram of the rear panel of the commander 20.

As shown in FIG. 2A, on the front panel of the commander 20, a numeric keypad 21 composed of buttons from 0 to 9 for inputting a song selection number or the like of a karaoke song to be selected.
And a music selection button 22 for confirming the music selection. A music selection number display 23 is provided on the numeric keypad 21 for displaying the music selection number of the selected karaoke tune by a six-digit number with an LED. ing.

On the left side of the music selection number display 23, there is provided a reserved music number display 24 for displaying the number of karaoke songs reserved for performance by LED.
Below the button 25, a cancel button 25 for canceling the reservation
A performance stop button 26 for stopping the performance, and a re-song button 27 for re-sung from the beginning while singing
And an interrupt button 28 for interrupting and making a reservation between the reserved songs.

Further, a remote control 7 is provided at the upper left of the front panel.
A light receiving unit 38 for receiving an optical signal transmitted from 0 is provided, and a power button 39 for turning on the power of the commander 20 is provided at the lower left of the front panel.

On the right side of the numeric keypad 21, a flat key 29 for lowering the key of the karaoke song, a standard key 30 for standardizing the key, and a sharp key 31 for highering the key are provided. Below the key, a vocal button 32 for setting the volume of the vocal melody line
And a 2 chorus cut button 33 for playing up to the second chorus of the karaoke song, and a replay cut button 34 for cutting the trailing portion of the karaoke song.

Further, below these buttons, a karaoke switching button 35 for switching between performance of karaoke music and performance of BGM, and one of the conventional two-dimensional video and 3D image is monitored from the video player 6. An image switching button 36 for selecting display on the monitors 12 and 14 and a service button 37 for switching the display on the monitors 12 and 14 to display service information such as commercials are provided.

The video switching button 3 corresponds to a selecting means in the present invention. When the button is pressed once, the mode becomes a mode for displaying a normal two-dimensional image. When the button is pressed continuously, when the detecting means detects the presence of the singer, the 3D image is displayed.
It is configured to be in a mode in which an image can be displayed. Therefore, if the singer wants to keep his or her figure from being displayed on the monitors 12 and 14 depending on the mood at that time, the image switching button 3 may be pressed.

As shown in FIG. 2B, a communication terminal 40 for connecting the communication line 15 is provided on the rear panel of the commander 20, and a video player is provided to the right of the communication terminal 40. 6, a connector 61 connected to the interface of the video player 6, a video input terminal 58 connected to the video output terminal of the video player 6, and a video input terminal 62 connected to the video output terminal of the video camera 4. Further, to the right of the video input terminal 62, a video output terminal 42 connected to the video input terminal of the monitor 12, a video output terminal 43 connected to the video input terminal of the monitor 14,
Audio output terminal 4 connected to audio input terminal of amplifier 16
1 is provided.

Next, the configuration of the control system of the commander 20 will be described.

FIG. 3 is a block diagram showing the main configuration of the control system of the commander 20.

The commander 20 is provided with a CPU 45, which executes various controls necessary for playing a karaoke song and reproducing a background image. Also, CPU
45 detects the total amount of motion in the video data output from the video camera 4 and judges whether or not a singer is present based on the detected amount.
It controls whether or not to display the image of the singer on 2, 14. In that sense, the CPU 45 functions as a part of the detection unit and the display control unit in the present invention.

The CPU 45 has a ROM 4 for storing various programs executed by the CPU 45 and the like.
6, a communication modem 49 for receiving karaoke music data transmitted from the host computer 8, karaoke music data received by the communication modem 49, command data transmitted from the remote controller 70, and selected karaoke music. A RAM 47 for temporarily storing song selection number data indicating a song selection number of a song, song selection number data of a reserved karaoke song, and the like are connected.

The CPU 45 stores a message indicating that the singer can be photographed and displayed on the monitor, characters constituting the lyrics telop, a karaoke song name, a song selection number,
Characters indicating the operation state of the karaoke apparatus are displayed on the monitors 12 and 14.
And a video RAM 48 for temporarily storing data read from the font ROM 44 and developed into bitmap data.

Further, the CPU 45 has a MIDI (Musical In) which constitutes the performance data included in the karaoke music data.
A MIDI sound source 52 for controlling instrument digital interface (Strument Digital Interface) data by sequencer software stored in a ROM 46 is connected. And MID
An amplifier 16 for inputting and amplifying a tone signal output from the MIDI tone source 52 is connected to the I tone source 52, and the amplified tone signal output from the amplifier 16 is connected to the amplifier 16. A speaker 13 for inputting and outputting to the outside is connected. Therefore, this CPU
45, MIDI sound source 52, amplifier 16, and speaker 1
Numeral 3 constitutes a playing means in the present invention.

The CPU 45 is connected to a digital processing circuit 31 for converting singer video data output from the video camera 4 for inputting singer video data into digital data and executing various processes. . The digital processing circuit 31 converts the video data input from the video camera 4 into, for example, an MPEG (Moving Picture Expert).
Group) 2 data may be subjected to compression processing.

The details of the video camera 4 and the digital processing circuit 31 will be described later.

Further, an image synthesis processing circuit 32 is connected to the CPU 45, and the image synthesis processing circuit 32
The singer video signal output from the digital processing circuit 31 is converted into a display signal to be displayed on the monitors 12 and 14, and the bitmap data output from the video RAM 48 is converted into a character video.

The image synthesizing circuit 32 superimposes a video signal from the video player 6, a singer video signal from the digital processing circuit 31, and a lyric telop signal from the video RAM 48.

In this embodiment, the video player 6 connected to the image synthesizing circuit 32 can reproduce both normal two-dimensional video and 3D video. It is also possible to prepare a separate playback device for each of the normal two-dimensional video and the 3D image, and connect them to the image synthesis processing circuit 32.

The CPU 45 includes a video player 6
Is connected to a background image selection circuit 33 for selecting and controlling one of a normal two-dimensional image and a 3D image as a background image output from.

The CPU 45 has H as a storage means for storing karaoke music data, game programs and the like.
A DD (hard disk drive) 64 is connected.

The CPU 45 includes a remote controller 70
Receiving section 38 for receiving an optical signal from
Is connected to a conversion circuit 55 that converts the optical signal received into the digital signal into a digital signal.

Further, the CPU 45 is illuminated when various buttons provided on the front panel of the commander 20 are pressed, and the music selection number display 23 and the reserved music number display 24 are provided.
A display circuit 56 for outputting a display signal to the input terminal and an input circuit 57 for inputting a switching signal generated when the various buttons are pressed are connected.

Next, the configuration of the remote controller 70 will be described with reference to FIG. Above the upper surface of the remote control 70, a music selection number display section 71 for displaying the music selection number by a liquid crystal with a backlight is provided, and below the remote controller 70, a karaoke switching button having the same function as the karaoke switching button 35 of the commander 20 is provided. 72, and an external video button 73 having the same function as the video switching button 36 of the commander 20.
And a game button 7 for activating a game program stored in the HDD 63 and switching to a state of playing a game.
4 are provided.

Incidentally, the external video button 73 also corresponds to the selecting means in the present invention.

Below the buttons, a clapping button 75 for setting to reproduce the sound of applause and cheering after the end of the reproduction of the inter-song or karaoke tune, and a commander 20.
And a sharp key 77 having the same function as the flat key 29 provided on the commander 20 and a sharp key 77 having the same function as the sharp key 31 provided on the commander 20. Further, below these buttons, similarly, a numeric keypad 78 having the same function as each key provided on the commander 20, a music selection button 79, and a performance stop button 8
0, a re-song button 81, a cancel button 82, and an interrupt button 83 are provided. On the right side of the interruption button 83, a minus button 84 for decreasing the volume of the vocal melody and a plus button 85 for increasing the volume are provided.

A video shooting button 86 for activating the video camera 4 is provided below the interrupt button 83.
Is provided.

Above the music selection number display section 71, there is provided an infrared transmitting section 93 for transmitting, as infrared rays, a control signal generated by pressing the above-mentioned various buttons.

Next, the video camera 4 and the digital processing circuit 3 related to the function of the CPU 45 as display control means
1. Details of the configuration of the video player 6 and the like will be described with reference to FIG.

First, the configuration of the video player 6 will be described.

As shown in FIG. 5, the video player 6
2D video player 6a for outputting 2D video data
Image player 6b that outputs 3D image data
It is composed of

Next, the configuration of the digital processing circuit 31 connected to the video camera 4 will be described.

It should be noted that the video is realized by arranging a plurality of still picture data temporally. In the case of this embodiment, for example, one still picture data is displayed every 1/30 second. It has become. In the present embodiment, one piece of still image data is represented by, for example, 704 pixels in the horizontal direction and 480 pixels in the vertical direction. In the present embodiment, this is divided into 16 × 16 pixels.
This is a macro block. Therefore, one still image is a set of 30 vertical macroblocks and 44 horizontal macroblocks.

As shown in FIG. 5, the digital processing circuit 31 connected to the video camera 4 comprises the following elements.

That is, data conversion means 81 for converting the analog video data input from the video camera 4 so that it can be used internally, and time conversion for the macroblock pixel data input from the data conversion means 81. It is detected whether there is any motion between the preceding and succeeding pixel data, and is converted into data as motion compensation data.
The motion detection means 8 checks which part is similar by comparing the data with the data from the data 8 and generates pixel difference data with that part.
And 2.

Further, an orthogonal transform is performed on the pixel data and the motion compensation data output from the motion detecting means 82, and the orthogonal transform means 83 for outputting the orthogonal transform data as a result thereof. And the quantizing means 84 which divides the orthogonal transform data by a predetermined quantization step value and outputs the quotient as quantized data.

Further, a variable length encoding means 85 for converting the quantized data from the quantizing means 84 into a variable length code and outputting the result is multiplied by a quantization step value based on the output of the quantizing means 84, Inverse quantization means 86 for creating orthogonal transform data considering an error, and inverse orthogonal transform means 87 for creating pixel data based on the orthogonal transform data output from the inverse quantization means 86.

Further, a prediction memory 88 for generating and holding an image to be used in the next screen from the pixel data output from the inverse orthogonal transform means 87, and a code output from the variable length coding means 85 And expansion means 89 for expanding the converted data.

Then, the CP functioning as the display control means
U45 calculates the total motion amount of the entire video based on the motion compensation data output from the motion detecting means 82, determines the motion distribution state of the video, and determines the calculated total motion amount and the motion distribution state. On the basis of the above, only when the predetermined condition is satisfied, the variable-length encoding means 85 outputs the compressed encoded data. When the predetermined condition is not satisfied, the variable-length encoding means 85 outputs the compressed encoded data. Control not to output.

When the above-mentioned predetermined condition is satisfied, the CPU 45 controls the background image selecting circuit 33 to
The D image player 6b is driven. On the other hand, when the above-mentioned predetermined condition is not satisfied, the two-dimensional video player 6
The background image selection circuit 33 is controlled so as to drive a.

As the transform method in the orthogonal transform means 83, for example, DCT (discrete cosine transform), discrete Fourier transform (DFT) or the like is adopted. In the case of DCT, DCT coefficients as orthogonal transform data are rearranged and output to the quantization means 84 in the order of frequency components. The variable-length coding unit 85 may be based on run-length / variable-length coding conversion. If the above-described DCT is used, the DCT coefficient quantized by the quantization unit 84 may be used. Is converted into a run-length code which is a set of the number of runs of the zero coefficient and the level of the non-zero coefficient, and this code is replaced with a variable length code associated in advance and output.

Next, a series of operations of the karaoke apparatus 10 will be described with reference to the flowcharts of FIGS.

FIG. 6 shows C from the selection of a tune to the performance of the tune.
It is a flowchart which shows the processing content of PU45.

First, when the user of the karaoke apparatus 10 points the transmission window 93 of the remote controller 70 to the commander 20 and presses the numeric keypad 78 corresponding to the song selection number to sing, the number corresponding to the numeric keypad 78 is changed each time the keypad is pressed. Song selection number display 2
3 and monitors 12 and 14 are sequentially displayed.

Subsequently, if the user presses the numeric keypad 78 of the last number of the music selection number and then presses the music selection button 79, it is determined that the music selection has been completed (step 1: YES; the steps are simply referred to as S hereinafter), and the music selection is performed. The CPU 45 detects a request signal for requesting the reading of the karaoke song data of the selected song. Then, the CPU 45 sets the HDD 64
Then, the karaoke music data corresponding to the music selection number indicated by the request signal is searched and read (S3), and the read karaoke music data is temporarily stored in the RAM 47 (S3). The song data is read (S5), and the playback method instruction command included in the read karaoke song data is transmitted to the background image selection circuit 33 via the bus.

The playback method instruction command specifies the genre and file name of the background video to be played back together with the karaoke performance. Then, the background image selection circuit 33 is controlled based on these genre names and file names, and sequentially displayed on the monitors 12 and 14 as a background image (S
9).

Here, the process of reproducing the background video will be described with reference to the flowchart of FIG.

First, the CPU 45 presses the image switching key 36 on the commander 20 or
By pressing the external video key 73 on the remote control 70,
It is determined whether or not the mode is such that the 3D image can be reproduced (S50). As a result, when the display mode is not the 3D image reproducible mode but the conventional two-dimensional video only display mode (S50: NO), S6 described later is used.
9. The process proceeds to S71. On the other hand, if the mode is the 3D image reproducible mode (S50: YES), the process proceeds to S51.

That is, in S51, the CPU 45
Determines whether or not motion compensation data has been input from the motion detection means 82 (S51). If motion compensation data has been input (S51: YES), the process proceeds to S53.

That is, the CPU 45 adds the motion amount of the video obtained from the motion compensation data input from the motion detection means 22 to "total motion amount Σ" (S53). And
It is determined whether or not the motion compensation data for one frame has been input (S55). If the input for one frame has not been input yet (S55: NO), the process returns to S51.

On the other hand, when the motion compensation data for one frame is input and the total motion amount Σ for one frame is obtained (S55: YES), the flow shifts to S57.

That is, the CPU 45 determines whether or not the obtained total motion amount Σ is equal to or more than a predetermined value (S5).
7).

As a result, when the total motion amount で is equal to or larger than the predetermined value (S57: YES), the CPU 45 next determines the motion distribution state (S59).

If the motion distribution state satisfies a predetermined condition (S61: YES), the CPU 45
An output permission instruction is issued to the variable-length encoding unit 85 (S63). Therefore, the CPU 63 controls the video camera 4,
Together with the digital processing circuit 31, it constitutes the detecting means in the present invention.

Even if the total amount of movement is equal to or greater than a predetermined value,
The reason why the output permission instruction is not issued to the variable-length coding means 85 by itself is as follows. That is, based on only the total amount of movement Σ, for example, it is difficult to distinguish between a case where the target video is moving small overall and a case where only a part of the target video is largely moving.

In the present embodiment, even if the total amount of movement is the same, if the target video moves as a whole, it is not considered that a singer exists, but a part of the target video is not considered. If only the singer is moving significantly, the singer is considered to be present. Therefore, even if the total motion amount で あ is equal to or greater than the predetermined value (S57: YES), the instruction to permit the output of the singer video data from the variable-length encoding unit 85 is not issued alone, and the motion distribution state is also used By judging a state in which a part of the target video is moving more than other parts (S59, S61), it is determined whether or not a predetermined condition is satisfied. .

Therefore, in other cases, that is, the total motion amount Σ
Is smaller than the predetermined value (S57: NO), or when the motion distribution state determined in S59 does not satisfy the predetermined condition (S57: NO), the process proceeds to S69.

That is, the CPU 45 instructs the variable length encoding means 85 to stop outputting the singer video data (S69).

After the CPU 45 instructs the variable length encoding means 85 to output singer video data in S63, the CPU 45 further executes
3 to drive the 3D image player 6b,
The image is reproduced (S65). Then, the reproduced 3D image is combined with the singer image whose output has been permitted in S63 (S67). In this sense, the CPU 45 and the image composition processing circuit 32 constitute a display control unit in the present invention.

Thereafter, the process returns to the main routine.

On the other hand, in step S69, after the CPU 45 instructs the output from the variable length
5 further controls the background image selection circuit 32, drives the two-dimensional player 6a, and reproduces the two-dimensional video (S7).
1).

Thereafter, the process returns to the main routine.

The CPU 45 determines in S7 that the RAM 47
MIDI data constituting the performance data included in the karaoke song data read out from the
Write to.

The tone signal output from the MIDI tone generator 52 is output to the amplifier 16. The output tone signal is output to the speaker 13 after being amplified to the volume set by the amplifier 16 and is output to the speaker 1.
3 is output and reproduced as a performance sound to the outside (S11).

The CPU 45 reads font data corresponding to the lyrics telop data included in the karaoke song data from the font ROM 44, develops the read font data into bitmap data, and stores the bitmap data in the video RAM 48. Subsequently, the bitmap data is output to the image synthesizing processing circuit 32, and is converted by the image synthesizing processing circuit 32 into a display signal that can be displayed on the monitors 12, 14, and as shown in FIG. The lyrics telop is displayed together with the background video on 12 and 14 (S13).

That is, when a normal two-dimensional video is reproduced by driving the two-dimensional video player 6a in S71, as shown in FIG.
An image in which the lyrics telop and the background image are combined is displayed.
On the other hand, when the 3D image is reproduced by driving the 3D image player 6b in S65,
As shown in FIG. 8B, in addition to the lyrics telop and the 3D image, a video of the singer photographed by the video camera 4 is synthesized and displayed.

The audio signal input from the microphone 17 is mixed with the tone signal in the amplifier 16, and the mixed signal is amplified to the volume set by the amplifier 16 and then amplified by the speaker 1.
2 and 14 and are reproduced from the speakers 12 and 14 as a mixing sound.

[0109] Therefore, the user can sing through the microphone 17 while watching the background image and the lyrics telop displayed on the screens of the monitors 12 and 14 for the music selected by the user.

When the reproduction of one karaoke song is completed (S15: YES), the CPU 45 determines whether or not there is a next reserved karaoke song. YES), and repeat the operation from S3 again. On the other hand, if there is no reserved karaoke song (S1
7: NO), the operation ends.

According to the karaoke apparatus 10 described above,
If the singer 3 does not want to display his / her own image on the monitors 12 and 14, for example, the singer 3 may always be in a mode in which the two-dimensional image is reproduced and displayed by pressing the external image key 73 on the remote controller 70. . In addition, even when the mode is such that the presence of a singer is detected by pressing the external video key 73 and the video is displayed on the monitors 12 and 14, the singer can perform his or her own singing in an area where the presence is not detected. Video can be prevented from being displayed on the monitors 12 and 14.

In this sense, it is possible to select whether or not to display a background image displaying the singer according to the singer's preference and mood at that time.

In the present embodiment, the CPU 45
The data output from the variable-length encoding unit 85 is controlled, but is not limited thereto.
Alternatively, the output of data from the quantization means 84 or the decompression means 89 may be controlled.

In the present embodiment, the detection of the presence of a singer is based on the detection of the movement of the singer photographed by the video camera 4. However, the present invention is not limited to this. May be adopted.

That is, as shown in FIG. 9, a pressure sensor 101 is mounted on a stage 100 used by a singer.
When the singer gets on the stage 100, the image of the singer may be displayed as the background image based on the detection of the pressure sensor 101 with respect to the pressure change due to the weight of the singer. In this case, the threshold value for detection by the pressure sensor 101 is determined by the microphone stand 99 or the monitor 1
It may be set so that the presence of the singer is not detected in the normal state where the singer 4 is riding.

Further, in stage 100, pressure sensor 1
01 are arranged in a matrix, and the degree of setting of the threshold value of the detection of the pressure sensor 101 in each predetermined portion is made different. Video of monitor 1
If the singer's image is displayed at 2, 14 and stands at another place, the image of the singer is not displayed, the fun can be further increased.

As a method for detecting the presence of a singer, it may be based on the presence or absence of reflected waves due to infrared rays.

That is, as shown in FIG. 10, infrared rays emitted from the infrared sensor 105 attached to the wall 2 may strike the microphone stand 99 and receive reflected waves. Then, when the singer 3 is positioned so as to block the space therebetween, the infrared sensor 105 does not receive the reflected wave from the microphone stand 99, and the singer image is displayed on the monitors 12 and 14 based on that. Can be controlled as follows.

In this way, it is possible to detect the presence of a singer with a relatively simple configuration and at a reduced cost.

[0120]

As is apparent from the above description,
According to the video karaoke apparatus according to claim 1 of the present invention,
When the detection means detects the presence of the singer, the display control means causes the display means to display an image of the singer photographed by the photographing means.

Therefore, if the presence of the singer is not detected by the detecting means, the image of the singer is not displayed by the display means. For example, if the singer himself does not want to display his own image on the display means, Since it is only necessary to sing in a place not detected by the detecting means, it is possible to select whether or not to display the figure of the player as a background image on the display means according to the singer's preference and mood at that time.

According to the video karaoke apparatus of the second aspect, the display control means displays the singer on the display means by synthesizing the singer with a stereoscopic image. Since the image is synthesized with the stereoscopic image to be displayed, it is possible to give the user a feeling of being in the display image of the display means.

Further, according to the video karaoke apparatus according to the third aspect, the singer does not need to perform the operation of singing or not singing at the position detected by the detecting means.
By operating the selection means, it is possible to select a state in which the user's figure is displayed on the display means and a state in which the image is not displayed.

According to the video karaoke apparatus of the fourth aspect, when the singer wants to display his / her own image on the display means, the singer uses the stage of the stage used by the singer as the detection area of the detection means. It is sufficient to sing in at least a part of the area. On the other hand, if the user does not want to display his / her own image on the display means, he may sing in a place other than at least a part of the stage, which is the detection area of the detection means. Therefore, depending on the area where the singer is present, it is possible to display or not display the own image.

Further, according to the video karaoke apparatus according to the fifth aspect, the detecting means detects the presence of the singer based on the total amount of motion of the video data input by the photographing means, so that the singer is photographed. It is possible to effectively utilize the photographing means to perform the detection as to the singer.

According to the video karaoke apparatus of the sixth aspect, for example, when the singer stands on the stage, the detecting means attached to the stage detects the pressure changed by the weight of the singer. By detecting, the presence of the singer can be detected.

Further, according to the video karaoke apparatus according to the seventh aspect, the presence of a singer can be detected based on the presence or absence of a reflected wave due to infrared rays. Therefore, the detection of the singer can be realized with a relatively simple configuration, and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a diagram showing a specific state in which a karaoke apparatus according to the present embodiment is installed in a room.

FIG. 2 is a diagram showing the appearance of the front and back of a karaoke commander in the karaoke apparatus according to the embodiment.

FIG. 3 is a block diagram showing a configuration of a control system of the karaoke commander.

FIG. 4 is a diagram showing an appearance of a remote control device.

FIG. 5 is a block diagram showing a configuration of a digital processing circuit and the like for detecting the presence of a singer.

FIG. 6 is a flowchart showing the operation of the karaoke apparatus.

FIG. 7 is a flowchart showing the operation of the karaoke apparatus.

FIG. 8 is a diagram showing a screen displayed on a monitor.

FIG. 9 is a diagram showing a specific state in which the karaoke apparatus according to the present embodiment is installed in a room.

FIG. 10 is a diagram showing a specific state in which the karaoke apparatus according to the present embodiment is installed in a room.

[Explanation of symbols]

 Reference Signs List 4 video camera 6 video player 12 monitor 14 monitor 31 digital processing circuit 36 video switching button 45 CPU 70 remote controller 73 external video key 82 motion detection means 85 variable length coding means 101 pressure sensor 105 infrared sensor

Claims (7)

[Claims] 1. A video karaoke apparatus comprising: performance means for playing a karaoke song; and display means for displaying a background image together with the performance of the performance means. A video karaoke comprising: a detecting means for detecting; and a display control means for displaying, on the display means, a singer photographed by the photographing means when the presence of the singer is detected by the detecting means. apparatus. 2. The video karaoke apparatus according to claim 1, wherein the display control means displays the singer on the display means by synthesizing the singer with a stereoscopic video. 3. The apparatus according to claim 1, further comprising a selection unit configured to select a state in which the display control unit displays the singer on the display unit and a state in which the singer is not displayed. The video karaoke apparatus according to claim 1 or 2. 4. The video karaoke apparatus according to claim 1, wherein the detection area by the detection means is at least a part of a stage used by a singer. 5. The video karaoke apparatus according to claim 1, wherein said detection means detects the presence of a singer based on the total amount of motion of the video data. 6. The video karaoke apparatus according to claim 1, wherein said detecting means detects the presence of a singer based on a pressure change due to the weight of the singer. 7. The video karaoke apparatus according to claim 1, wherein said detection means detects the presence of a singer based on the presence or absence of a reflected wave due to infrared rays.