KR100244519B1 - Motion adaptive luminance and chroma separating circuit - Google Patents

Abstract

A motion adaptive luminance and color signal separation circuit for separating luminance and color signals from a composite image signal according to the motion of an image is disclosed. The low frequency video signal separated from the composite video signal by the image separation unit and the high frequency video signal interleaved with the luminance and color signals are adaptively filtered by the frame comb filter and the line comb filter, and are separated from the frame comb filter and the line comb filter. The first and second luminance signals and the first and second color signals are selectively output to the selection output unit in accordance with the horizontal and vertical motion of the composite image signal sensed by the motion detection unit. It is possible to improve the separation of the color and luminance signals from the composite video signal.

Description

Motion adaptive luminance and color signal separation circuit

The present invention relates to a luminance and color signal separation circuit of a television receiver. More specifically, the present invention relates to a motion adaptive luminance and color signal separation circuit for separating luminance and color signals from a composite video signal according to the motion of an image displayed on a television screen.

In general, the human eye is known that color information such as hue and saturation does not need to be as detailed as the information necessary for luminance in the image quality and image of the same sharpness. Therefore, the largest frequency band is allocated to the luminance signal in the frequency band of the television. On the other hand, for hue and saturation that do not correspond to the amount of change in luminance, the human eye should have 1/10 to 1/3 of the resolution required for brightness.

The color signals modulated as the color carrier by the above properties are put in a band much narrower than the luminance signal band. For example, in the NTSC system, an I signal component of a color signal modulated as a color carrier is used for a 1.3 MHz band, and a Q signal component for a 0.5 MHz band. Providing a wider band for the I signal component compared to the Q signal component of the color signal is because the I signal is better for color resolution.

Since the frequency of the color carrier is 3.58 MHz, the modulated color signal is interleaved on the high frequency sideband of the luminance signal to generate a composite image signal. The comb filter method is used to minimize the attenuation of the luminance signal and the interference by the luminance signal of the color signal when the luminance signal and the color signal interleaved with the luminance signal are separated from the composite image signal.

FIG. 1 is a circuit diagram showing the configuration of a conventional comb filter 10. An input terminal 11, a line delay unit 12, a first subtractor 13, a 1/2 amplifier 14, and a band pass filter (Band Pass Filter; BPF, 15), and a second subtractor (14). Referring to the operation of the comb filter 10, when a composite video signal is input to the line delay unit 12 through an input terminal 11, the line delay unit 12 outputs the input composite image signal to a television screen. Delays during the scan time of one horizontal line are output to the subtractor 13. The first subtractor 13 subtracts the line delay signal from the line delay unit 12 from the current composite video signal input through the input terminal 11, namely, a difference signal in which luminance signal components are mutually attenuated. , The color signal is output to the 1/2 amplifier 14. Then, the half amplifier 14 amplifies the color signal output from the subtractor 13 by half and outputs the result to the BPF 15. The BPF 15 filters the 1/2 amplified color signal from the 1/2 amplifier 14 and provides it to the second subtractor 16 and outputs it to the outside. The second subtractor 16 generates a luminance signal Y by subtracting the filtered 1/2 amplified color signal from the BPF 15 from a current composite image signal input through the input terminal 11. The luminance signal Y is output to the outside.

That is, in the comb filter 10, the color signal components of two consecutive horizontal scanning lines have a phase difference of 180 °. Accordingly, the comb filter 10 removes the luminance signal component from the composite image signal by calculating a signal difference between the composite image signal inputted over a horizontal line time and the currently input composite image signal, thereby removing only the color signal component. Get However, in the comb filter 10, as the image moves horizontally and vertically, the correlation between lines is weakened, and a hanging dot phenomenon occurs on the screen, and the correlated adaptive color signal is a band pass filter. When passing through 15, a color signal is mixed with the luminance signal, thereby causing a dot crawl phenomenon.

Accordingly, the present invention was created in view of the above problems, and an object of the present invention is to detect motion of an image from an image signal, and separate luminance and color signals according to the direction of motion of the image, thereby further improving luminance and color signal separation. It is to provide a kinetic adaptive luminance and color signal separation circuit capable of.

1 is a circuit diagram showing the configuration of a conventional comb filter.

2 is a circuit diagram illustrating a motion adaptive luminance and color signal separation circuit according to an exemplary embodiment of the present invention.

3A to 3H are diagrams showing spectra of respective parts of the circuit shown in FIG.

* Description of the symbols for the main parts of the drawings *

11, 201: Input terminals 12, 410, 503: Line delay

13, 16, 220, 320, 420: subtractor

14, 340, 350, 440, 450: 1/2 amplifier

15: Band Pass Filter (BPF)

210; Low Pass Filter (LPF)

200: image separation unit 300: frame comb filter

310: frame delays 330, 430, 510, 520: adder

400: line comb filter 500: adder

600: motion detection unit 610: horizontal motion detection unit

620: vertical motion detection unit 700: selection output unit

710: first switch 720: second switch

A motion adaptive luminance and color signal separation circuit according to the present invention for realizing the above object is an image for separating the input composite video signal into a low frequency low frequency video signal and a high frequency high frequency video signal in which the luminance and color signals are interleaved with each other. Separator; A frame comb filter for adaptively filtering the high frequency image signal separated by the image separator in a time axis direction to generate a first high frequency luminance signal and a first color signal; A line comb filter for adaptively filtering the high frequency image signal separated by the image separator in a vertical direction to generate a second high frequency luminance signal and a second color signal; A first high frequency luminance signal generated by the frame comb filter and a second high frequency luminance signal generated by the line comb filter are respectively added to the low frequency image signal from the image separator to generate first and second luminance signals. Adder for making; A motion detector configured to generate first and second detection signals based on horizontal and vertical motions of the composite image signal input to the image separator; And a selection output unit for selectively outputting the first and second luminance signals and the first and second color signals in response to the first and second detection signals from the motion detection unit.

According to the configuration according to the present invention, it is possible to improve the separation of the color and luminance signals from the composite video signal by selectively outputting the luminance and color signals output from the line and frame comb filter in accordance with the degree of vertical and horizontal correlation of the screen do.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

2 is a circuit diagram illustrating a motion adaptive luminance and color signal separation circuit according to an exemplary embodiment of the present invention.

Referring to FIG. 2, a motion adaptive luminance and color signal separation circuit according to the present invention includes an image separation unit 200, a frame comb filter 300, a line comb filter 400, an adder 500, and a motion detection unit ( 600), and a selective output unit.

The image separator 200 includes a low pass filter 210 and a first subtractor 220. The frame comb filter 300 includes a frame delayer 310, a second subtractor 320, a first adder 330, a first 1/2 amplifier 340, and a second 1/2 amplifier 350. It is composed. The line comb filter 400 is a line delay 410, a third subtractor 420, a second adder 430, a third 1/2 amplifier 440, and a fourth 1/2 amplifier 450. It is composed.

In addition, the adder 500 includes a third adder 510 and a fourth adder 520, and the motion detector 600 includes a horizontal motion detector 610 and a vertical motion detector 620. It is composed. The selection output unit 700 includes a first switch 710 and a second switch 720.

The composite image signal V input through the input terminal 201 is input to the low pass filter 210 and the first subtractor 220 of the image separator 200, respectively. The low pass filter 210 of the image separation unit 200 filters the low frequency image signal LY including only the luminance signal by filtering a frequency signal of 3 MHz or less from the input image signal. The third adder 510 and the fourth adder 520 of the adder 500, the third input terminal S5 of the second switch 720 of the selection output unit 700, and the motion detector The horizontal motion detector 610 and the vertical motion detector 620 of 600 are respectively provided. The first subtractor 220 subtracts the 3MHz or less low-frequency image signal LY generated by the low pass filter 210 from the composite image signal V input through the input terminal 201 to color. A high frequency video signal HV interleaved with a signal and a luminance signal is generated, and the generated high frequency video signal HV is provided to the frame comb filter 300 and the line comb filter 400, respectively.

In addition, the high frequency image signal HV input from the first subtractor 220 to the frame comb filter 300 may include a frame delay unit 310, a second subtractor 320, And a first adder 330, respectively. The high frequency image signal HV input from the first subtractor 220 to the line comb filter 400 may include a line delay 410, a third subtractor 420, and a third subtractor of the line comb filter 400. It is input to the two adders 430, respectively.

The frame delay unit 310 of the frame comb filter 300 delays the high frequency image signal HV from the first subtracter 220 of the image separation unit 200 by one frame to delay the frame delay signal 3101. ) And output the generated frame delay signal 3101 to the second subtractor 320 and the first adder 330, respectively. The second subtractor 320 generates the frame delay signal 3101 generated by the frame delay unit 310 in the high frequency image signal HV from the first subtractor 220 of the image separator 200. And subtracts the first color signal 21QC1 having a double size and outputs the generated first color signal 21QC1 having a double size to the first 1/2 amplifier 340. Then, the first 1/2 amplifier 340 amplifies the first color signal 21QC1 of the double magnitude from the second subtractor 320 to generate a first color signal C1. The generated first color signal C1 is output to the first input terminal S1 of the first switch 710 of the selection output unit 700.

The first adder 330 adds the frame delay signal 3101 from the frame delayer 310 to the high frequency image signal HV from the first subtractor 220 of the image separator 200. A first high frequency luminance signal 21QY1 having a double magnitude is generated, and the first high frequency luminance signal 21QY1 having a double magnitude is output to the second 1/2 amplifier 350. Then, the second 1/2 amplifier 350 amplifies the double-frequency first high frequency luminance signal 21QY1 from the first adder 330 by 1/2 to generate a first luminance signal Y1. The generated first high frequency luminance signal Y1 is output to the third adder 510 of the adder 500.

In addition, the high frequency image signal HV input from the first subtractor 220 to the line comb filter 400 may include a line delay unit 410, a third subtractor 420 of the line comb filter 400. And second adders 430, respectively.

The line delay unit 410 of the line comb filter 310 delays the high frequency image signal HV from the first subtractor 220 of the image separation unit 200 by one horizontal scanning time 1H, thereby delaying the line delay signal. 4101 and provide the generated line delay signal 4101 to the third subtractor 420 and the second adder 430, respectively. The third subtractor 420 subtracts the line delay signal 4101 from the line delay unit 410 from the high frequency image signal HV from the first subtractor 220 of the image separator 200. A second color signal 21QC2 having a double magnitude is generated and the generated second color signal 21QC2 having a double magnitude is output to the third 1/2 amplifier 440. Then, the third 1/2 amplifier 440 amplifies the second color signal 21QC2 of the double magnitude from the third subtractor 420 to generate a second color signal C2. The generated second color signal C2 is output to the second input terminal S2 of the first switch 710 of the selection output unit 700.

The second adder 430 adds the line delay signal 4101 from the line delayer 410 to the high frequency image signal HV from the first subtractor 220 of the image separator 200. A second high frequency luminance signal 21QY2 having a double magnitude is generated, and the generated second high frequency luminance signal 21QY2 having a double magnitude is output to the fourth 1/2 amplifier 450. Then, the fourth 1/2 amplifier 450 amplifies the second high frequency luminance signal 21QY2 of the double magnitude from the second adder 430 by half to amplify the second high frequency luminance signal Y2. The second high frequency luminance signal Y2 is output to the fourth adder 520 of the adder 500.

The third adder 520 of the adder 500 is connected to the first high frequency luminance signal Y1 from the second 1/2 amplifier 350 of the frame comb filter 300. The low frequency image signal LY from the low pass filter 210 is added to generate a first luminance signal Y3, and the generated first luminance signal Y3 is second to the second output of the selection output unit 700. It outputs to the first input terminal S3 of the switch 720. The fourth adder 520 of the adder 500 is connected to the second high frequency luminance signal Y2 from the second 1/2 amplifier 450 of the line comb filter 400. The low-frequency image signal LY from the low pass filter 210 is added to generate a second luminance signal Y4, and the generated second luminance signal Y4 is generated by the second output signal of the selection output unit 700. It outputs to the second input terminal S4 of the switch 720.

The horizontal motion detector 610 of the motion detector 600 detects horizontal motion of a television image based on the low frequency image signal LY from the low pass filter 210 of the image separator 200. The first detection signal 6101 is generated, and the generated first detection signal 6101 is provided to the first and second switches 710 and 720 of the selection output unit 700, respectively. The vertical motion detector 620 of the motion detector 600 detects a vertical motion of a television image based on the low frequency image signal LY from the low pass filter 210 of the image separator 200. The second detection signal 6201 is generated, and the generated second detection signal 6201 is provided to the first and second switches 710 and 720 of the selection output unit 700, respectively.

The horizontal motion detector 610 of the motion detector 600 detects a horizontal motion from the low frequency image signal LY from the low pass filter 210 of the image separator 200, and detects the horizontal motion. When the horizontal motion is greater than or equal to a predetermined reference magnitude, a first detection signal 6101 of logic high is generated, and the horizontal motion is generated in the low frequency image signal LY from the low pass filter 210 of the image separator 200. When the detected horizontal motion is detected to be less than a predetermined reference size, and generates the first detection signal 6101 of the logic row.

In addition, the vertical motion detector 620 may generate a logic high when the vertical motion is detected to be greater than or equal to a predetermined reference level in the low frequency image signal LY from the low pass filter 210 of the image separator 200. The second detection signal 6201 is generated, and when the vertical motion is detected to be less than a predetermined reference size in the low frequency image signal LY, a second detection signal 6201 of a logic row is generated.

The first switch 710 of the selection output unit 700 is a first detection signal 6101 of the horizontal motion detection unit 610 of the motion detection unit 600, and the motion detection unit 600 The first and second color signals C1 and C2 input through the first and second input terminals S1 and S2 in response to the second detection signal 6201 from the vertical motion detector 620. Selective output. The second switch 720 is provided from the first detection signal 6101 of the horizontal motion detection unit 610 of the motion detection unit 600 and the vertical motion detection unit 620 of the motion detection unit 600. The first and second luminance signals Y3 and Y4 input through the first, second, and third input terminals S1, S2, and S3 in response to a second detection signal 6201 of the second signal, and The low frequency image signal LY from the low pass filter 210 of the image separator 200 selectively outputs any one signal.

Hereinafter, the operation of the motion adaptive luminance and color signal separation circuit configured as described above will be described in more detail with reference to the accompanying drawings.

3 is a diagram illustrating a spectrum of each part of the circuit shown in FIG. 2.

In FIG. 2, the composite image signal V input through the input terminal 201 is input to the low pass filter 210 and the first subtractor 220 of the image separator 200, respectively. The low pass filter 210 filters a signal of 3 MHz or less from the composite image signal V to generate a low frequency image signal LV, which is a luminance signal, as shown in FIG. 3A, and generates the generated low frequency image signal ( LV is added to the first subtracter 220, the third and fourth adders 510 and 520 of the adder 500, and the third input terminal S5 of the second switch 720 of the selective output unit 700. Are printed respectively).

The first subtractor 220 subtracts the low frequency image signal LV from the low pass filter 210 from the composite image signal V input through the input terminal 201, as shown in FIG. 3B. An image signal HV is generated and the generated high frequency image signal HV is provided to the frame comb filter 300 and the line comb filter 400, respectively.

The high frequency image signal HV input to the frame comb filter 300 is input to the frame delay unit 310, the second subtractor 320, and the first adder 330 of the frame comb filter 300, respectively. The frame delay unit 310 delays the high frequency image signal HV from the first subtracter 220 by one frame scanning time to generate a frame delay signal 3101, and generates the frame delay signal 3101. Output to the second subtractor 320 and the first adder 330, respectively.

The second subtractor 320 generates the frame delay signal 3101 generated by the frame delay unit 310 in the high frequency image signal HV from the first subtractor 220 of the image separator 200. And subtracts the first color signal 21QC1 having a double size and outputs the generated first color signal 21QC1 having a double size to the first 1/2 amplifier 340. Then, the first half amplifier 340 amplifies the first color signal 21QC1 of the double magnitude from the second subtracter 320 by half to a first as shown in FIG. 3C. The color signal C1 is generated, and the generated first color signal C1 is output to the first input terminal S1 of the first switch 710 of the selection output unit 700.

The first adder 330 adds the frame delay signal 3101 from the frame delayer 310 to the high frequency image signal HV from the first subtractor 220 of the image separator 200. A first high frequency luminance signal 21QY1 having a double magnitude is generated, and the first high frequency luminance signal 21QY1 having a double magnitude is output to the second 1/2 amplifier 350. Then, the second 1/2 amplifier 350 amplifies the double-frequency first high-frequency luminance signal 21QY1 halved from the first adder 330 by a half as shown in FIG. 3D. The luminance signal Y1 is generated, and the generated first high frequency luminance signal Y1 is output to the third adder 510 of the adder 500.

The high frequency image signal HV input from the first subtractor 220 to the line comb filter 400 may be a line delay unit 410, a third subtractor 420 of the line comb filter 400. And second adders 430, respectively.

The line delay unit 410 of the line comb filter 310 delays the high frequency image signal HV from the first subtractor 220 of the image separation unit 200 by one horizontal scanning time 1H, thereby delaying the line delay signal. 4101 and provide the generated line delay signal 4101 to the third subtractor 420 and the second adder 430, respectively. The third subtractor 420 subtracts the line delay signal 4101 from the line delay unit 410 from the high frequency image signal HV from the first subtractor 220 of the image separator 200. A second color signal 21QC2 having a double magnitude is generated and the generated second color signal 21QC2 having a double magnitude is output to the third 1/2 amplifier 440. Then, the third 1/2 amplifier 440 amplifies the second color signal 21QC2 of the double magnitude from the third subtractor 420 by half to a second as shown in FIG. 3E. The color signal C2 is generated, and the generated second color signal C2 is output to the second input terminal S2 of the first switch 710 of the selection output unit 700.

The second adder 430 adds the line delay signal 4101 from the line delayer 410 to the high frequency image signal HV from the first subtractor 220 of the image separator 200. A second high frequency luminance signal 21QY2 having a double magnitude is generated, and the generated second high frequency luminance signal 21QY2 having a double magnitude is output to the fourth 1/2 amplifier 450. Then, the fourth 1/2 amplifier 450 amplifies the double-frequency first high-frequency luminance signal 21QY2 from the second adder 430 by a half to a second as shown in FIG. 3F. A high frequency luminance signal Y2 is generated, and the generated second high frequency luminance signal Y2 is output to the fourth adder 520 of the adder 500.

The third adder 520 of the adder 500 is connected to the first high frequency luminance signal Y1 from the second 1/2 amplifier 350 of the frame comb filter 300. The low frequency image signal LY from the low pass filter 210 is added to generate a first luminance signal Y3 as shown in FIG. 3G, and the selected first luminance signal Y3 is output to the selection output. The first output terminal S3 of the second switch 720 of the unit 700 is output. The fourth adder 520 of the adder 500 is connected to the second high frequency luminance signal Y2 from the second 1/2 amplifier 450 of the line comb filter 400. The low frequency image signal LY from the low pass filter 210 is added to generate a second luminance signal Y4 as shown in FIG. 3G, and the generated second luminance signal Y4 is output to the selection output. Outputs to the second input terminal S4 of the second switch 720 of the unit 700.

The horizontal motion detector 610 of the motion detector 600 detects horizontal motion of a television image based on the low frequency image signal LY from the low pass filter 210 of the image separator 200. The first detection signal 6101 is generated, and the generated first detection signal 6101 is provided to the first and second switches 710 and 720 of the selection output unit 700, respectively. The vertical motion detector 620 of the motion detector 600 detects a vertical motion of a television image based on the low frequency image signal LY from the low pass filter 210 of the image separator 200. The second detection signal 6201 is generated, and the generated second detection signal 6201 is provided to the first and second switches 710 and 720 of the selection output unit 700, respectively.

The horizontal motion detector 610 of the motion detector 600 detects a horizontal motion from the low frequency image signal LY from the low pass filter 210 of the image separator 200, and detects the horizontal motion. When the horizontal motion is greater than or equal to a predetermined reference magnitude, a first detection signal 6101 of logic high is generated, and the horizontal motion is generated in the low frequency image signal LY from the low pass filter 210 of the image separator 200. When the detected horizontal motion is detected to be less than a predetermined reference size, and generates the first detection signal 6101 of the logic row.

In addition, the vertical motion detector 620 may generate a logic high when the vertical motion is detected to be greater than or equal to a predetermined reference level in the low frequency image signal LY from the low pass filter 210 of the image separator 200. The second detection signal 6201 is generated, and when the vertical motion is detected to be less than a predetermined reference size in the low frequency image signal LY, a second detection signal 6201 of a logic row is generated.

The first switch 710 of the selection output unit 700 is a signal of a logic low when both the first sensing signal 6101 and the second sensing signal 6201 from the motion sensing unit 600 are the signals of a logic low. It is connected to the first input terminal S1 to output the first color signal C1 input through the first input terminal S1. On the contrary, when the first sensing signal 6101 and the second sensing signal 6201 are a logic low or high signal from the motion sensing unit 600, the first switch 710 is connected to the second input terminal. The second color signal C2, which is connected to S2 and is input through the second input terminal S2, is output.

Also, the second switch 720 of the selection output unit 700 may be configured to have a logic low level when all of the first sensing signal 6101 and the second sensing signal 6201 from the motion sensing unit 600 are logic low. The first luminance signal Y3, which is connected to the first input terminal S3 and is input through the first input terminal S3, is output as a luminance signal. In addition, when the first detection signal 6101 from the motion detection unit 600 is logic low and the second detection signal 6201 is logic high, it is connected to the second input terminal S4 and is connected to the second input terminal. The second luminance signal Y3 input through S4 is output as a luminance signal. Unlike the above case, when the first sensing signal 6101 is logic high, the second switch is connected to the third input terminal S5 and is input through the third input terminal S5. The low frequency image signal LY from the filter 210 is output as a luminance signal.

Therefore, according to the above configuration, the degree of separation of the color and luminance signals from the composite video signal can be improved by selectively outputting the luminance and the color signals output from the line and frame comb filters according to the degree of vertical and horizontal correlation of the screen.

As described above, the present invention senses the motion of the image from the image signal, and the motion adaptive luminance and color signal separation circuit that can separate the luminance and color signals according to the direction of movement of the image for improved luminance and color signal separation Can be realized.

Although this invention was demonstrated concretely by the said Example, this invention is not restrict | limited by this, A deformation | transformation and improvement are possible within the normal knowledge of a person skilled in the art.

Claims (10)

An image separation unit 200 for separating the input composite image signal into a low frequency low frequency image signal and a high frequency high frequency image signal in which luminance and color signals are interleaved; A frame comb filter 300 for adaptively filtering the high frequency image signal separated by the image separator 200 to generate a first high frequency luminance signal and a first color signal; A line comb filter 400 for adaptively filtering the high frequency image signal separated by the image separating unit to generate a second high frequency luminance signal and a second color signal; The first high frequency luminance signal generated by the frame comb filter and the low frequency image signal from the image separation unit are added, and the second high frequency luminance signal generated by the line comb filter and the low frequency image signal from the image separation unit. An adder 500 for generating first and second luminance signals, respectively; A motion detector 600 for generating first and second detection signals based on horizontal and vertical motions of the composite image signal input to the image separator; And And a selection output unit 700 for selectively outputting the first and second luminance signals and the first and second color signals in response to the first and second detection signals from the motion detection unit. Motion adaptive luminance and color signal separation circuit. The apparatus of claim 1, wherein the image separation unit 200 comprises: a low pass filter 210 for filtering low frequency signals from an input composite image signal; And And a first subtractor (220) for generating the high frequency video signal by subtracting the low frequency video signal filtered by the low pass filter from the input composite video signal. 3. The adaptive adaptive luminance and color signal separation circuit according to claim 2, wherein the low pass filter (220) is a 3 MHz low pass filter. The frame comb filter (300) of claim 1, further comprising: a frame delay (310) for generating a frame delay signal by delaying a high frequency video signal from the image separator by one frame time; A second subtractor (310) for generating the first color signal having a double size by subtracting a frame delay signal generated by the frame delay unit from the high frequency image signal from the image separator; A first adder (330) for generating the first high frequency luminance signal of twice the size by adding a frame delay signal generated by the frame delay unit from the high frequency image signal from the image separator; A first half amplifier (340) for generating a first color signal by amplifying the first two times the first color signal from the second subtractor by half; And And a second 1/2 amplifier 350 for amplifying the double frequency first high frequency luminance signal from the first adder 1/2 to generate a first luminance signal. Color signal separation circuit. The line comb filter (400) of claim 1, wherein the line comb filter (400) comprises: a line delay (410) for generating a line delay signal by delaying the high frequency video signal from the image separator (200) by one horizontal time; A third subtractor (420) for generating the second color signal having twice the size by subtracting the line delay signal from the line delay unit from the high frequency image signal from the image separator (200); A second adder (430) for generating the second high frequency luminance signal of twice the size by adding the line delay signal from the line delay unit to the high frequency image signal from the image separator; A third half amplifier 440 for generating a second color signal by amplifying the second-sized second color signal from the third subtractor by half; And Motion adaptive luminance, characterized in that it comprises a fourth half amplifier 450 for generating a second high frequency luminance signal by amplifying the second high frequency luminance signal one half of the size from the second adder. And color signal separation circuit. The method of claim 1, wherein the adder 500 generates the first luminance signal by adding the low frequency image signal from the image separator 200 to the first high frequency luminance signal from the frame comb filter 300. A third adder 510 to make a difference; And And a fourth adder 520 for generating the second luminance signal by adding the low frequency image signal from the image separation unit 200 to the second high frequency luminance signal from the line comb filter 400. Motion adaptive luminance and color signal separation circuit. The horizontal motion detection apparatus of claim 1, wherein the motion detection unit 600 detects a horizontal motion of a television image based on the low frequency image signal from the image separation unit 200, and generates the first detection signal. Unit 610; And And a vertical motion detector 620 for detecting the vertical motion of the television image based on the low frequency image signal from the image separator and generating the second detection signal. Disconnect circuit. The method of claim 7, wherein the horizontal motion detector 610 detects the first detection signal of logic high when the horizontal motion is detected from the low frequency image signal from the image separator 200 by a predetermined reference size or more. And a first detection signal of a logic low when a horizontal motion is detected below a predetermined reference level in the low frequency image signal from the image separation unit 200. Disconnect circuit. The method of claim 7, wherein the vertical motion detector 620 detects a second detection signal of logic high when the vertical motion is detected from the low frequency image signal from the image separator 200 by a predetermined reference size or more. And generating a second detection signal of a logic row when a vertical motion is detected to be less than a predetermined reference size in the low frequency image signal from the image separation unit. The display device of claim 1, wherein the selection output unit 700 comprises a first switch for selectively outputting the first and second color signals in response to the first and second detection signals from the motion detection unit 600. 710); And A second switch 720 for selectively outputting any one of the first and second luminance signals and the low frequency image signal from the image separator in response to the first and second sensing signals from the motion detector; A motion adaptive luminance and color signal separation circuit, characterized in that consisting of).