JPH05232978A - Video signal processor - Google Patents

Abstract

(57) [Abstract] [Purpose] To synthesize the image of a person taken by a video camera with the appropriate position and size on the playback image of the optical disk playback device. [Arrangement] An image obtained by the video camera 2 is stored in the memory 3. The optical disc 1a is reproduced by the reproducing means 1. At this time, the control means 4 gives an address signal to the memory 3 so as to control the size and insertion position of the image according to the combined information obtained from the optical disc 1a. Then, the synthesizing means 5 inserts the image stored in the memory 3 into the video signal reproduced by the reproducing means. This allows the singer's image to be embedded in the background image according to the progress of the reproduced song in applications such as a karaoke device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video signal processing device for inserting an image of another image signal generating device into an output image of a laser disc player or the like.

[0002]

2. Description of the Related Art In recent years, the demand for a karaoke apparatus using a laser disc player has increased, and it has been desired to enhance the karaoke function. Conventional karaoke devices are often used in a simple system in which a video signal is output in accordance with music, lyrics are inserted into the video signal, and the colors are sequentially changed.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a video signal processing device for karaoke, which has more functions in addition to the conventional functions and is combined with a video camera which has been rapidly popularized in recent years. To aim.

[0004]

According to the invention of claim 1 of the present application, a video in which another image is inserted into an output image from a reproducing apparatus for reproducing music recorded on a recording medium and an image related to the music. A signal processing device, which includes a video camera for outputting a video signal of a subject, a memory for storing the video signal of the video camera, and synthetic information for inserting music and image signals and other images corresponding to the progress of music. Reproducing means for reproducing a recording medium in which is recorded, synthesizing means for synthesizing the video signal of the video camera with the video signal reproduced by the reproducing means, and the insertion stored in the memory according to the synthesizing information reproduced by the reproducing means. And a control means for supplying an address signal for converting the size and position of the image to be provided to the memory.

The invention according to claim 3 of the present application is a video signal processing device for inserting another image into an output image from a reproducing device for reproducing music recorded on a recording medium and an image related to the music. A video camera for outputting a video signal of a subject, a memory for storing the video signal of the video camera, a reproducing means for reproducing a recording medium on which music and image signals are recorded, and a video signal reproduced by the reproducing means. , The composition means for synthesizing the video signal of the video camera and the data of the synthesis information memory in which the synthesis information corresponding to the progress of the music reproduced on the recording medium is recorded are read, and the size and position of the image to be inserted stored in the memory And a control means for giving an address signal to be converted to the memory.

[0006]

According to the invention of claim 1 of the present application having such characteristics, music and video are output when the recording medium is reproduced by the reproducing means. At the same time, synthetic information corresponding to the progress of the reproduced music is output. On the other hand, another image is input using the video camera and the image signal is stored in the memory. Next, the video signal reproduced by the reproducing means and the video signal read from the memory are given to the synthesizing means. The control means is
An address signal for converting the size and position of the image read from the memory is given to the memory according to the composition information of the recording medium. Then, the synthesizing means converts the size and position of the image input from the video camera and inserts it into the output image of the playback device.

According to the invention of claim 3 of the present application, an address is generated from the second address generator in accordance with the progress of reproduction of the recording medium, and the combined information memory in which the combined information is recorded is read. Then, the size and position of the image to be inserted stored in the memory is converted into an address signal and given to the memory by the control means. In this way, the image reproduced from the memory and the reproduced image from the recording medium can be combined.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A video signal processing apparatus according to a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the first of the present invention.
It is a block diagram which shows the structure of the video signal processing apparatus used for the karaoke apparatus in an Example. FIG. 2 is an explanatory diagram showing image processing of a karaoke device including the video signal processing device of this embodiment. In FIG. 1, the reproducing means 1 is, for example, a laser disk player for reproducing music recorded on the optical disk 1a and an image associated with the music. The video camera 2 is a video signal generator that outputs a video signal of a subject, and here is a camera that shoots a singer or the like using a karaoke device. The memory 3 is a memory that stores an image output from the video camera 2 for each frame or field.

As shown in FIG. 2A, the memory 3 sequentially stores pixel data divided into m pixels in the horizontal direction and n pixels in the vertical direction of an image output from the video camera 2, and is, for example, a RAM. It is composed of semiconductor memory such as (random access memory). The control means 4 is for instructing reading and writing of the image data stored in the memory 3, and the synthesizing means 5 is for inserting or synthesizing the image data of the memory 3 into the video signal output from the reproducing means 1. Is.

The synthesizing means 5 comprises an A / D converter 6, a video signal discriminating means 7, and a switch means 8.
The A / D converter 6 is a converter that converts an analog video signal output from the reproducing means 1 into a digital signal. The video signal discriminating means 7 uses the image data stored in the memory 3 among the image data.
This is a circuit for discriminating a target image, that is, an area of a person and outputting an image area signal. The switch means 8 is a circuit for switching between the digital video signal of the A / D converter 6 and the image signal read from the memory 3 based on the image area signal output from the video signal discrimination means 7.

On the other hand, the control means 4 comprises a clock generator 9, a synthetic information separation circuit 10 and an address generator 11. The clock generator 9 is a circuit for generating a clock for reading and writing the memory 3, a clock for the address generator 11 and a clock for the A / D converter 6.
The composite information separating circuit 10 is a circuit for separating the composite information contained in the vertical blanking period from the video signal of the reproducing means 1. The synthesis information includes signals of the address start position and the reading order of the image data to be synthesized, which are identified and given to the address generator 11. The address generator 11 outputs the address signal of the start position designated by the composite information separation circuit 10 in order to control the composite position and the reduction ratio of the image captured by the video camera 2 and is necessary for accessing the pixel data. Address signals are output to the memory 3.

The operation of the video signal processing apparatus thus configured will be described with reference to FIGS. 1 and 2. Consider a case where a person sings while watching the lyrics on the screen in accordance with the music of the orchestra sound reproduced from the optical disk 1a in the karaoke apparatus. For example, when the video of the singer is photographed by the video camera 2, the image is recorded in the memory 3 for each frame.
Stored in. The screen imaged at this time becomes an image centering on the singer as shown in FIG. 2A, and each image data thereof is stored in the memory 3. On the other hand, the reproduction means 1 reproduces a background image associated with reproduced music as shown in FIG. 2C, for example. Next, when the image in the memory 3 is read out, the size of the image is designated by the operation unit (not shown) of the control means 4. Here, for example, when the obtained image is reduced to 1/2 as shown in FIG. 2B, the address generator 11 outputs an address to the memory 3 so as to read the stored image data by one.

Further, when the composite information indicating the insertion position of the image and the insertion time matching the background screen is recorded in advance in the blanking period of the video signal of the optical disc 1a, the optical disc 1a is reproduced by the reproducing means 1. Then, the combined information separating circuit 10 detects these combined information. The address generator 11 generates a read address in accordance with the address sequence of the reduction ratio instructed by the operation unit from the read start address corresponding to the insertion position of the image from the composite information. The reduction rate of the image to be inserted may be included in the composition information of the optical disc 1a.

Next, the image data read from the memory 3 is given to the video signal discrimination means 7 and the switch means 8. Since the video signal discriminating means 7 extracts only the profile of the photographed singer, for example, the back when photographing a person with a camera is made dark, and an image region of a certain level or higher is discriminated as a target region. In this case, the video signal discriminating means 7 is simply a level detector, and a detection signal (key signal) exceeding a predetermined level is given to the switch means 8.
The switch means 8 switches between the background image output from the A / D converter 6 and the signal read from the memory 3, and the memory means 3 outputs the key signal indicating the singer's profile only. The read signal of is output. By doing so, the two types of images are stored in one frame, and a combined image as shown in FIG. 2D is output.

As described above, according to this embodiment, the image from the video camera can be combined with the reproduced image from the optical disc 1a while changing the position and size. When such a video signal processing device is used in a karaoke device, it is possible to obtain a video in which the singer has entered the background image according to the progress of the song.

In the present embodiment, the video signal discriminating means 7 is simply a level detector, but discrimination can also be performed by using a method called chroma key which discriminates between a person and a background image based on the difference with the background color. ..

Next, a video signal processing apparatus according to the second embodiment of the present invention will be described. FIG. 3 is a block diagram showing the configuration of a video signal processing device used for karaoke in the second embodiment of the present invention. In the figure, a reproducing means 1 is a reproducing device for reproducing an optical disc 1b as a first recording medium on which music and image signals are recorded. Since the video camera 2, the memory 3 and the synthesizing means 5 are the same as those in the first embodiment shown in FIG. 1, their description will be omitted. Control means 4a
Includes a clock generator 9 and a first address generator 11 which are the same as those in the first embodiment, and has a second address generator 12 instead of the combined information separation circuit 10 of FIG.

The address generator 12 is a circuit which generates an address signal when reading data from the IC card 13 connected to the control means 4a. Address generator 12
Is for detecting the composite information included in the vertical blanking period from the video signal of the reproducing means 1, and reading the data of the start time and the start position of the address. IC card 13 is ROM
Is a composite information memory having a built-in memory, and outputs the size of the image to be inserted and the data of the insertion position according to the address signal. Here, the control means 4a reads the data of the synthesis information according to the progress of the reproduced music on the recording medium, and gives the memory 3 an address signal for converting the size and position of the image to be inserted stored in the memory 3. is there.

In the video signal processing apparatus thus constructed, the reproducing means 1 reproduces the reproduced music and the background image associated with the music from the optical disc 1b. The reproducing means 1 gives an address generation start signal and a start address signal of the IC card 13 to the address generator 12. Next, the address generator 12 outputs an address signal to the IC card 13 at a constant speed. Therefore, the size and position data of the image associated with the reproduced music or the background image is read from the IC card 13.
Then, this signal is output to the address generator 11 as in the first embodiment described above, and the address generator 11 causes the memory 3
The address signal to be read out is output. Thereafter, as in the first embodiment, the image from the video camera 2 is inserted into the reproduced image from the optical disc 1b while changing its position and size.

By such an operation, in the first embodiment, only one type of image composition can be realized for the background image of the same music, whereas in the second embodiment, the IC card 13 is used. By changing the data of the IC card even for the same song, various image synthesizing methods can be selected.

In this embodiment, the IC card 13 is used to record the combined information such as the position and size of the image to be inserted, but the invention is not limited to this, and it can be realized by a magnetic tape or the like. Further, in the first and second embodiments, the memory 3 is a memory for storing one image, but a memory capable of storing a plurality of images is used, and the address signal of the address generator 11 is switched to advance the song. It is also possible to change the type of image to be combined in accordance with. For example, the video camera 2 can be used to store two types, a front view and a side profile of a singer, and switch the two depending on the scene.

[0022]

As described above, according to the present invention, the image from the video camera is inserted into the image reproduced from the reproducing means such as an optical disk at an appropriate position and size according to the progress of the reproduced music. You can By storing the composition information such as the position, size and insertion timing of the inserted image in the composition information memory, it is possible to combine different images for the same reproduced music according to the singer's preference.

[Brief description of drawings]

FIG. 1 is a block diagram of a video signal processing device according to a first embodiment of the present invention.

FIG. 2 is a schematic diagram showing a method of synthesizing images in the embodiment of the present invention.

FIG. 3 is a block diagram of a video signal processing device according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 reproducing means 1a, 1b optical disk 2 video camera 3 memory 4, 4a control means 5 synthesizing means 6 A / D converter 7 video signal discriminating means 8 switch means 9 clock generator 10 synthetic information separating circuit 11, 12 address generator 13 IC card

Claims (5)

[Claims] 1. An output image from a reproduction device for reproducing music recorded on a recording medium and an image related to the music,
A video signal processing device for inserting another image, the video camera outputting a video signal of a subject, a memory for storing the video signal of the video camera, a signal of music and an image and progress of the music. Reproduction means for reproducing a recording medium on which composition information for inserting another image is recorded, composition means for composition of the video signal of the video camera with the video signal reproduced by the reproduction means, and reproduction by the reproduction means. A video signal processing device, comprising: control means for applying to the memory an address signal for converting the size and position of an image to be inserted, which is stored in the memory, in accordance with the synthesized information. 2. The synthesizing unit performs A / D conversion on the video signal reproduced by the reproducing unit.
/ D converter, switch means for switching between the output of the A / D converter and the video signal output by the memory, and video signal determination means for determining the image area to be inserted in the image read from the memory. And a size of the inserted image, by the composite information separating unit that detects composite information from the signal reproduced by the reproducing unit, and the composite information obtained by the composite information separating unit. The video signal processing device according to claim 1, further comprising: an address generator that supplies an address signal indicating an insertion position to the memory. 3. An output image from a reproducing device for reproducing music recorded on a recording medium and an image related to the music,
A video signal processing device for inserting another image, comprising a video camera for outputting a video signal of a subject, a memory for storing the video signal of the video camera, and the recording medium on which music and image signals are recorded. Reproducing means for reproducing, synthesizing means for synthesizing the video signal of the video camera with the video signal reproduced by the reproducing means, and data of the synthetic information memory in which synthetic information according to the progress of the music reproduced on the recording medium is recorded. And a control means for giving an address signal for converting the size and position of the image to be inserted stored in the memory to the memory, and a video signal processing device. 4. The A means for A / D converting the video signal reproduced by the reproducing means.
/ D converter, switch means for switching between the output of the A / D converter and the video signal output by the memory, and video signal determination means for determining the image area to be inserted in the image read from the memory. And a second address generator for generating a read address of the composite information memory, and a size and an insertion position of the insert image based on the data read from the composite information memory. 4. A video signal processing apparatus according to claim 3, further comprising a first address generator for giving the address signal shown to the memory. 5. The recording medium is a read-only optical disc, and the composite information memory is an IC including a semiconductor memory.
The video signal processing device according to claim 3, wherein the video signal processing device is a card.