KR100700693B1 - Method for zooming image of television by sound recognition - Google Patents

Abstract

The present invention relates to a method for adjusting a screen size of a television through voice recognition, and when a speaker's voice is input in advance in a broadcast screen and the speaker's voice is input, the speaker is displayed on the video screen through an enlarged screen of the speaker stored with the voice. There is an advantage that can easily identify who is talking by automatically expanding the screen size around the speaker.

Voice recognition, speaker, screen magnification, screen size, zoom function

Description

How to adjust screen size of TV through voice recognition {METHOD FOR ZOOMING IMAGE OF TELEVISION BY SOUND RECOGNITION}             

1 is a block diagram showing the configuration of a general digital television receiver currently used.

2 is a block diagram showing a device to which the method for adjusting the screen size of a television according to the present invention is applied.

3 is a flowchart illustrating a method for adjusting the screen size of a television according to the present invention.

   -Explanation of symbols for the main parts of the drawings-

1: antenna 2: tuner

3: IF amplification unit 4: P / S separation unit

5: voice detector 6: image detector

7: remote control unit 8: receiving unit

9, 100: microprocessor 10: voice processing unit

11: voice amplifier 12: speaker

13: analog / digital converter (A / D converter)

14: image information management unit 15: image information storage unit

16: digital image adjusting unit 17: image processing unit

18: Digital / Analog Converter (D / A Converter)

19: CRT drive unit 20: CRT

21: comparison voice storage unit 22: enlarged screen storage unit

23: zoom function control

The present invention relates to a method for adjusting the screen size of a television through voice recognition, and more particularly, a screen size centering on the speaker when the speaker's voice is input after storing the speaker's voice in advance on a broadcast screen. The present invention relates to a method for adjusting the screen size of a television through voice recognition, which facilitates identification of who is talking to the speaker.

The digitalization of information spread from the computer industry to the information and communication industry has recently been extended to television broadcast signals. Digitization of television broadcast signals will realize a two-way multimedia era in which a new paradigm that is fused with technology in the computer and communication fields is realized.

Digital broadcasting is centered around the European Digital Video Broadcasting (DVB) standard and the ATV (Advanced TV) standard of the US FCC. It complies with the ATSC standard that the United States decided as the next generation TV method, replacing the NTSC standard that symbolizes the existing analog TV.

The difference between digital television and traditional analog television is divided into picture quality, sound quality, aspect ratio and others as follows.

First, in terms of image quality, an analog TV using 525 horizontal scanning lines has a horizontal resolution of about 330 lines that determines viewing quality, whereas a high definition (HD) digital TV has a horizontal resolution of about 700 lines. It is more than twice as clear as the TV.

In terms of sound quality, conventional analog TVs provide only two channels of stereo sound, while digital TVs using AC3 technology provide 5.1 channels of stereo sound that can be enjoyed in theaters.

In terms of the aspect ratio, the conventional analog TV has an aspect ratio of 4 to 3, whereas digital TVs have a wide aspect ratio of 16 to 9, similar to a theater screen.

What distinguishes digital TV from analog TV is not only a dramatic change in picture quality and sound quality. Digital TVs are data compatible with serial interfaces implemented via IEEE 1394 interface technology, such as digital versatile disc (DVD) players, digital camcorders, and digital VCRs that process digital signals as well as PCs.

Therefore, digitalization of broadcast signal will accelerate the convergence of communication, computer, and broadcasting due to the spread of media using the compressor method, and will be internationalized and multi-channel as a single media with complex functions. Above all, introducing a digital system to a broadcast signal can provide various data services that could not be realized in analog. In addition, the digitization of the broadcast signal may be performed by multiplexing and transmitting information in the vertical retrace period of the TV video signal or by using a separate channel, such as character information, image information, product information, and broadcast program information for a television or computer owner (aka electronic). Data broadcasting, which is a new media service providing multimedia information such as an electronic program guide (EPG), may be implemented.

On the other hand, since digital television processes a video screen in a digital manner, a still picture and a zoom function of the video screen may be applied.

1 is a block diagram showing the configuration of a general digital television receiver currently used.

As shown here, the tuner 2 generates and outputs a predetermined intermediate frequency signal from the broadcast signal received through the antenna 1, and the IF amplifier unit amplifies the intermediate frequency signal output through the tuner 2 ( 3) and a P / S separation unit 4 which separates the video intermediate frequency signal PIF and the audio intermediate frequency signal SIF from the broadcasting intermediate frequency signal output from the IF amplifier 3, for example, a surface acoustic wave filter. Is made of.

Then, the microprocessor 9 for the voice detector 5 for detecting the voice signal from the voice intermediate frequency signal output from the P / S separation unit 4, and the voice signal output from the voice detector 5 According to the control signal from the voice processing unit 10 for performing voice processing such as bass, treble, volume, etc., and the amplified voice signal processed by the voice processing unit 10, the speaker 12 It consists of a voice amplifier 11 for outputting.

Also, the video detector 6 detects a video signal from the video intermediate frequency signal output from the P / S separation unit 4, and converts the analog video signal output from the video detector 6 into a digital video signal. The control signal of the microprocessor 9 for the analog-to-digital converter 13 to output, the video information storage 15 for storing the digital video signal, and the digital video signal output from the analog-to-digital converter 13. The digital image output through the image information management unit 14 and the image information management unit 14 for sequentially storing the image information storage unit 15 in a predetermined unit based on the control signal of the microprocessor 9 A digital image adjusting unit 16 for processing a still image function or a zooming function with respect to a video signal stored in the signal or the image information storing unit 15, and a digital output from the digital image adjusting unit 16. Color, Tint, Brightness, etc. are processed according to the control signal from the microprocessor 9 with respect to the full image signal and corresponding R (Red), G (Green), B (Blue) ) And an image processor 17 for generating and outputting a luminance (-Y) signal, a digital / analog converter 18 for converting a digital image signal output from the image processor 17 into an analog image signal, and outputting the analog image signal. The CRT driver 19 drives the CRT 20 based on the color tone signals R, G, and B and the luminance (-Y) signal output from the analog converter 18.

On the other hand, the remote control device 7 for remotely instructing the overall operation of the television receiver, the receiving unit 8 for converting and outputting an infrared signal output from the remote control device 7 into an electric code signal, and the entire television receiver. It consists of a microprocessor (9) for controlling.

In the digital television configured as described above, a video signal of the broadcast signal received through the antenna 1 is converted into a digital signal, image processed, and then converted into an analog signal and output to the CRT 20. At this time, when the zoom function is selected by the user, the microprocessor 9 controls the digital image adjusting unit 16 to execute the zoom function on the received image signal.

As another method, the horizontal / vertical deflection adjustment data for adjusting the horizontal / vertical deflection of the horizontal / vertical deflection coil to change the deflection state of the image screen to adjust the screen size is stored in the memory and the memory for a predetermined image section. The method of adjusting the size of the screen by varying the horizontal / vertical deflection state by the horizontal / vertical deflection adjustment data stored in the is also used.

In this way, if the user wants to watch a video screen of his / her own desire while watching television, selecting a zoom function allows the user to watch the video in detail by adjusting the size of the video screen.

However, since the zoom function for adjusting the size of the video screen operates only when the user selects the zoom function on the desired video screen while watching television, the zoom function cannot be efficiently used.

In addition, in the case of a program where several people gather and talk, in order to find out who is the speaker, the current video screen can be observed in detail to determine the shape of the speaker's mouth, but this requires a lot of attention. If you want to use the problem, you need to find the speaker while moving the zoom area to find the speaker after the image screen is enlarged.

The present invention was created to solve the above problems, and an object of the present invention is to store the speaker's voice in advance on a broadcast screen and then expand the screen size around the speaker when the speaker's voice is input. The present invention provides a method for adjusting the screen size of a television through voice recognition for easy identification of who the speaker is.

The present invention for realizing the above object comprises the steps of extracting and storing the comparison voice for operating the automatic zoom function, selecting and storing the enlarged screen to be enlarged with respect to the extracted comparison voice, and the automatic zoom function Comparing the input voice signal and the stored comparison voice during operation; and if the comparison voice and the voice signal are determined to be the same, comparing the stored enlarged screen with the input video screen and setting an enlarged area; And operating the zoom function in the enlarged area at a predetermined ratio.

The enlarged screen to be enlarged in the present invention is characterized in that the speaker of the comparison voice.

In the present invention, the zoom function is characterized in that when the voice signal is changed to another person is released to return.

According to the present invention made as described above, the user operates the zoom function when the user compares the input voice signal with the compared voice after storing the comparison voice of the speaker and the enlarged screen of the speaker to enlarge the auto zoom function. By setting the enlarged area by comparing the enlarged screen of the stored speaker with the input video screen, the enlarged area of the input video screen is enlarged and displayed at a predetermined ratio.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the present embodiment is not intended to limit the scope of the present invention, but is presented by way of example only and the same parts as in the conventional configuration using the same reference numerals and names.

2 is a block diagram showing an apparatus to which the method for adjusting the screen size of a television through voice recognition according to the present invention is applied.

As shown here, a comparative voice storage unit 21 for storing the comparative voice extracted from the voice signal output from the voice detector 5 for detecting the voice signal in a television having a zoom function, and the extracted comparative voice. The enlarged screen storage unit 22 for selecting and storing the speaker's enlarged screen for finding the speaker, which is the main character of the speaker, and the comparison voice of the speaker is selected from the audio signal according to the user's selection. It controls not only to store in the voice storage unit 21, but also to control to select the enlarged screen of the speaker to be stored in the enlarged screen storage unit 22, as well as between the input voice signal and the comparison voice stored in the comparison voice storage unit 21 The zoom function control to determine whether the comparison is the same and to operate the zoom function by setting the magnification area by comparing the magnified screen stored in the magnified screen storage unit 22 with the input video screen. Achieved by further comprising: a 23.

Therefore, the user stores the comparison voice and the enlarged screen of the speaker in the comparison voice storage 21 and the enlarged screen storage 22 as an event for operating the zoom function. When the speaker's voice is input, the user can compare the stored magnification screen from the input video screen, set the magnification area, and then output a control signal for operating the zoom function with the microprocessor 9. In the same manner as when setting the function, the zoom function is operated on the microprocessor 9 according to the magnification size and the magnification area of the screen, so that the speaker of the preset voice can be enlarged and viewed.

In addition, when the user selects the comparison voice and the enlarged image, the storing operation for the corresponding image is performed by the control function 23 from the zoom function control unit 23 by the control signal transmitted from the microprocessor 9 and the enlarged screen storage unit. Control to store in (22).

This will be described in detail with reference to a flowchart for explaining a method for adjusting a screen size of a television through voice recognition according to the present invention shown in FIG. 3.

First, a user selects a comparison voice of a speaker for operating the auto zoom function and stores it in the comparison voice storage 21 (S10).

Then, the user selects the reference enlarged screen for setting the enlarged area to find the speaker and stores it in the enlarged screen storage 22 (S12).

That is, the enlarged screen is a screen indicating the speaker and is a comparative image for finding the speaker's position on the entire video screen.

Thereafter, when the user sets to automatically operate the zoom function (S14), the voice signal input from the zoom function control unit 23 is compared with the comparison voice stored in the comparison voice storage unit 21 (S16).

At this time, the comparison voices stored in the comparison voice storage unit 21 are compared with each other.

The comparison voice is compared with the input voice signal to determine whether the current speaker is the same as the comparison voice (S18).

At this time, if the same person is not enlarged, if the magnification is enlarged in the past, the screen is restored and then the automatic zoom function is judged to be operated while comparing the input voice signal with the comparison voice (S26).

However, if the input voice signal is the same as the comparison voice, the enlarged screen of the comparison voice and the same speaker is read from the enlarged screen storage unit 22, and the currently input video screen and the enlarged screen are compared with each other, and the enlarged screen on the video screen. This position is found (S20).

At this time, the presence and position of the enlarged screen in the video screen are compared probabilistically.

The enlarged area is set according to the position of the enlarged screen thus found (S22), and the control signal for setting the zoom function is output to the microprocessor 9 so as to enlarge the set enlarged area to a predetermined enlarged size. To enlarge (S24).

After the voice is changed and the speaker is changed to another person, the zoom state is released, the screen is returned to its original state, and the voices of the other speakers are compared (S26).

In this way, the screen zoom function can not only enlarge the digital image screen by digital method but also change the horizontal / vertical deflection state by the horizontal / vertical deflection adjustment data for adjusting the horizontal / vertical deflection of the horizontal / vertical deflection coil. You can also resize the screen.

As described above, according to the present invention, if the speaker's voice is pre-stored on the broadcast screen and the speaker's voice is input, the present invention automatically finds the speaker on the video screen through the enlarged screen of the speaker stored with the voice and automatically adjusts the screen size. By enlarging it, it is possible to easily identify who is talking.

Claims (3)

Extracting and storing the comparison voice for operating the auto zoom function; Selecting and storing an enlarged screen to be enlarged with respect to the extracted comparative voice; Comparing the input voice signal with the stored comparison voice during the auto zoom function; Setting a magnified area by comparing the stored magnified screen with the input video screen when it is determined that the comparison voice and the audio signal are the same; Operating a zoom function at a predetermined ratio with respect to the enlarged area Method of adjusting the screen size of the television through the voice recognition, characterized in that consisting of. The method of claim 1, wherein the enlarged screen to be enlarged is a speaker of a comparative voice. The method of claim 1, wherein the zoom function is released when the voice signal is changed to another person and returned.

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