KR20000074925A - Device for video compensation with each years of age - Google Patents

Abstract

PURPOSE: An apparatus for compensating an image according to an age group is proposed to compensate light based on an optical permeability of a crystalline lens of an eye according to each age, thereby providing convenience to a user. CONSTITUTION: The apparatus for compensating an image according to an age group comprises a memory portion for storing a plurality of image adjusting data according to each age; a controlling portion(27) for selecting one of the plurality of image adjusting data according to an input by a user and outputting to an image processing portion; and an image processing portion(24) for controlling an image according to the image adjusting data input by a controlling of the controlling portion and outputting the adjusted image. In the apparatus, the image adjusting data is white balance data. The white balance data has a color temperature set into at least three classes to compensate an optical permeability of a crystalline lens of an eye according to each age. When the user selects the white balance divided according to an age group through a key input portion, the controlling portion displays a releasing mode as an initial setting mode and the white balance mode on an OSD image.

Description

Device for video compensation with each years of age

According to the present invention, in particular, an image adjustment data value suitable for an age is set step by step based on the light transmittance of an eye according to a person's age, and a viewer can select a color temperature that is comfortable for his or her eye. The present invention relates to a video compensation device for each age group.

The white balance (color temperature), which is an image adjustment data for each age group, indicates the ratio of the mixture of visible light such as red, green, and blue to the object, or the color light when the black body emits heat and emits light. If the value is high, it becomes blue due to the nature of light, and when the temperature is low, it becomes red and the value is expressed as .K (Kelvin).

As shown in FIG. 1, an apparatus for controlling image quality and sound quality for each audience layer is shown in FIG. 1.

An image signal processing system including an image IF module 3, an image signal processing unit 4, and an image signal output unit 5 for processing an image signal included in a broadcast signal tuned by the tuner 2; A voice signal processing system including a voice IF module 6, a voice signal processor 7, and a voice signal output unit 8 for processing a voice signal included in a signal is provided for video / audio on a CRT and a speaker SP. In a television for reproducing a broadcast signal,

The video signal processor 4 receives the signal processed and output, and detects the level of the analog control item with respect to the image quality which is currently processed, and also controls the audio quality of the sound processed by the audio signal processor 7. The level of the level detection unit 9 for detecting the level of the item and the level of each analog control item for the image quality and sound quality detected by the level detection unit 9 are compared with the level classification data stored in advance and stored for each floor RGB level. The level comparator 10 for classifying and outputting, the key input unit 11 for adjusting each analog control item, and the level of each analog control item are red (R) and green (G) for each child, adolescent, and the elderly. ), A level classification data storage section 12 storing RGB level classification data classified into three levels of blue (B), and an identification card (ID) for each child, adolescent, and elderly person. A card inserting unit 13 provided on the front side small part, an ID signal reading unit 14 for reading an ID signal on the ID card inserted into the card inserting unit 13, and the ID signal reading unit 14; Control the level of each analog control item to be adjusted for each audience based on the ID data for each audience target floor provided by the R and G, B, and B level signals for each analog control item provided from the level comparison unit 10. It characterized in that it comprises a control unit 15 for performing.

The key input unit 11 further includes respective classification mode keys 11a, 11b, and 11c for classifying audiences of children, young adults, and old people, and the control unit 15 provides the ID signal reading unit 14. Instead of the ID data, the audience layer can be recognized by the key input of the audience layer classification mode keys 11a, 11b, and 11c provided in the key input means.

Referring to FIG. 1, a conventional apparatus for controlling image quality and sound quality for each audience layer configured as described above is as follows.

First, the video signal included in the broadcast signal tuned by the tuner 2 through the antenna 1 is processed by the video signal processor 3 through the video IF module 2, and the processed video signal is a video signal. After amplified by the amplifier 5, the video broadcast signal is reproduced through the CRT.

The voice signal included in the broadcast signal tuned by the tuner 2 is processed by the voice signal processing unit 7 through the voice IF module 6, and the processed voice signal is processed by the voice amplifier 8. Amplified and then reproduced in the speaker SP.

At this time, the level detection unit 9 detects the level of the analog control item with respect to the image quality currently processed by the video signal processing unit 4 and detects the level of the analog control item that has been voice processed by the audio signal processing unit 7. do.

The level of each analog control item for the image quality and sound quality detected by the level detector 9 is input to the level comparator 10 and then classified into GBR levels for each floor by comparing with the level classification data stored and preset. It is output to the control part 15.

Here, the level classification data storage unit 12 classifies the level of each analog control item into three levels of red (R), blue (B), and green (G) for each of children, adolescents, and the elderly. The level classification data is stored and the data is output to the controller 15.

At this time, the key input unit 11 is provided with each of the classification mode keys (11a, 11b, 11c) for classifying the viewing target of children, young people, and old people for adjustment of each analog control item, so that the viewer selects which mode key. If so, the corresponding signal is input to the controller 15.

At this time, if the identification card (ID) card for each of the children, young adults, and the elderly is inserted through the card insertion unit 13 installed in the predetermined portion of the television, the ID signal on the ID card is read by the ID signal reading unit 14, The read ID signal is output to the controller 15.

Then, the control unit 15 based on the ID data for each audience target layer provided by the ID signal reading unit 14 and the R, G, B level signals for each analog control item provided from the level comparison unit 10. Control is performed to adjust the level of each analog control item for each audience.

In addition, the control unit 15 replaces the ID data provided from the ID signal reading unit 14 by key input of the viewing target classifying mode keys 11a, 11b, 11c provided in the key input unit 11. The audience can be recognized.

Therefore, the analog control items for each audience can be more conveniently and accurately adjusted.

However, in the past, the image quality was changed by classifying the R, G, and B levels for each audience, but the cognitive ability of the color felt by the eyes decreases as the age of the person increases, in particular, the cognitive ability of the color rapidly decreases toward the blue system. Since there is a characteristic, the uniform white balance adjustment at the time of TV manufacturing causes the eyes to feel tired because it appears darker than other ages on the TV screen according to each age.

In order to solve the above problems, the present invention provides a method for reinforcing light at a weak part of each age group based on light transmittance according to the lens age of the human eye. Set and save, display on the OSD screen so that the viewer can select any one of the set mode, and changes the video signal of the TV screen by the image adjustment data according to the selected mode, so that the viewer can feel comfortable Its purpose is to provide a video compensation device for each age group that allows people to watch TV in a state.

1 is a block diagram of a conventional image and sound quality control device for each audience.

2 is a block diagram of an image compensating device for each age group as an embodiment of the present invention.

Figure 3 is a graph showing the region of the X-Y chromaticity diagram and white in the present invention.

Figure 4 is a graph showing the color temperature and color temperature trajectory in the present invention.

Figure 5 is a graph showing the chromaticity display by the orange color temperature and equilibrium line in the present invention.

Figure 6 is a graph showing the light transmittance according to the age of the human eye lens of the present invention.

7 is a table showing an example of the color temperature according to the age range displayed on the OSD screen as an embodiment of the present invention.

The age-based image compensation apparatus includes: a storage unit for storing a plurality of age-specific image adjustment data; A control unit which selects one of the plurality of image adjustment data and outputs it to an image processing unit according to a viewer's adjustment input; And a video signal processor for outputting a video signal adjusted by the video adjustment data input by the control of the controller.

The image adjustment data is characterized in that the ratio of the mixture of visible light such as red, green, blue, etc. irradiated to the object or the white balance data indicating the color light when the black body emits heat, that is, the nature of the light.

2 is a temporary example of the present invention.

A tuner 22 for tuning a broadcast signal, an image detector 23 for detecting a video signal included in the tuned broadcast signal, and a signal detected by the image detector 23 for a color signal R, A video signal processor 24 processed by G and B, a key input unit (eg, a remote controller) 25 for adjusting a white balance mode for each age group of the viewer, and a signal applied through the key input unit 25. Recognizing the signal amplified by the preamplifier 26 to amplify and the preamplifier 26 reads the initial setting mode and the viewing age group mode of the white balance previously stored in the OSD and is selected by the viewer. A control unit (MICOM) 27 for outputting white balance data corresponding to a mode to the image signal processing unit 24 and adjusting gains of the color signals R, G, and B in accordance with the white balance data input from the control unit 27. A color signal gain processing unit 28 and the color signal gain The CPT control unit 29 is configured to drive the CRT with the color signal whose gain is adjusted by the processing unit 28.

The control unit 27 includes a memory for setting a white balance mode for each age group and a release mode, which is an initial setting mode of white balance at the time of TV production, and a viewer's viewing age mode. The balance mode will be displayed on the OSD screen.

An example of the white balance for each age group is shown in FIG. 7.

When the Parental Control Mode is set to Off, the TV screen color temperature is 11,000 。K,

When viewing age mode is under 20s, TV screen color temperature is 8,500。K,

When viewing age mode is 30s, TV screen color temperature is 9,500。K,

When watching age mode is 40s, TV screen color temperature is 12,000。K,

If the viewing age mode is 50 or more, the TV screen color temperature is set to 13,000。K.

Here, the color temperature in the release mode is the color temperature set at the time of initial TV production, and the color temperature of the release mode is always maintained unless the viewing age mode is released or selected.

Reference numeral 21 denotes an antenna, and 30 denotes a power supply unit.

Referring to Figures 2 to 7 with respect to the age-based image compensation device of the present invention configured as described above are as follows.

First, the image detector 23 receiving the broadcast signal tuned by the tuner 22 through the antenna 21 detects the image signal included in the broadcast signal and outputs the image signal to the image signal processor 24. The image signal processor 24 processes the detected image signal into color signals R, G, and B, and then outputs the color signal to the color signal gain processor 28.

Then, the color signal gain processing unit 28 processes the signal gain of the color signal and outputs it to the CPT control unit 29 to be reproduced in the CPT.

White balance of each age group to reinforce the light of vulnerable areas of each age group based on the light transmittance according to the age of the lens of the human eye to compensate the white balance of the color signal reproduced in the CRT as described above. The data is set in stages and stored in a storage unit of the control unit (MICOM) 27.

Here, white balance is image adjustment data, and is a ratio of a mixture of visible light such as red, green, blue (R, G, and B) irradiated to an object, or color light when a black body emits heat by emitting light. It is a unit that indicates the property of light. When the value is high, it becomes blue due to the property of light. When the temperature is low, it becomes red, and the value is expressed as .K (Kelvin).

In other words, when white signal is input to color CRT, red, blue, green (R, G, B) phosphors reproduce white light at a certain color temperature at a certain rate. Means to control red, blue, and green DC voltages and gains in order to output a constant color temperature to the CRT.

In addition, when viewing the XY chromaticity diagram (CIE chromaticity diagram) as shown in FIG. 3, the white range of the TV screen is considerably wide, and when the white range is classified in detail, the white color tends to be red or the blue tendency of blue. This exists.

However, the color of the color reproduced on the TV screen is not significantly affected when the color is applied according to the image to be reproduced on the TV screen, that is, the color signal.

In addition, in order to distinguish the degree of white as described above, it is commonly referred to as color temperature, that is, white of 12,000 ° K or white of 15,000 ° K.

As described above, there is a color temperature trajectory indicating how many degrees of white color the color temperature is. This is a color temperature and color temperature trajectory graph of FIG. 4, which shows color light when the black body receives heat and emits light.

In the color temperature trajectory as shown in FIG. 4, the change in the X-axis direction represents the color temperature, and the change in the Y-axis direction is shown in FIG. 5 of JUDO's survey table using a unit called Minimum Perdeptible Chromaticity Difference (MPCD). The lower the value, the stronger the white of the blue trend, and the higher the higher the white, the stronger the white.

6 is a graph showing the light transmittance according to the age of the lens, the Y axis is a graph showing the transmittance of light in the lens of the human eye, the X axis is the wavelength of the visible light as the wavelength of light, the shorter the wavelength, the stronger the blue color, the longer the wavelength The red color becomes stronger.

In addition, the uppermost line in FIG. 6 is the characteristic of the eyes of 2 years old, the middle is 24 years old, and the lowermost line shows the characteristics of the eyes of 47 years old. The transmittance close to 100% is shown in the region.

However, when looking at the characteristics of eyes at 24 years of age, the light transmittance is generally lower than that of 2 years old, and in particular, the light transmittance of the short wavelength band is decreased more.

In addition, the light transmittance of the 47-year-old eye is much lower than that of the 24-year-old, showing almost half the light transmittance compared to the 2 year old, especially in the short wavelength of less than 550nm it can be seen that the rapid decrease.

The low light transmittance at such a short wavelength means that the ability of the blue system to perceive light is low.

For example, as shown in FIG. 6, in the light transmittance according to the age of the lens of the eye, the light transmittance of the lens is 60% to the light of 2 years old in the light having a wavelength of 400 nm, and the transmittance is 30 in the 24 year old. Percentage of light at 400nm wavelength means that only 24-year-olds feel half as much as two-year-olds, and in order to perceive light at the same level, the intensity of light at 400nm wavelength is more than twice that of two-year-olds. That means you have to shine on it.

In addition, 47-year-olds have a significantly lower light transmittance at about 400 nm compared to 24-year-olds.

In addition, when looking at the graph of FIG. 6 as a whole, in the red system light having a long wavelength of 700 nm, there is a slight difference in 2 years, 24 years, and 47 years, but there is no big difference.

However, the shorter the wavelength of the blue system (400nm) and the older the age, the more the light transmittance of the lens can be seen to fall sharply. Means that.

Therefore, in the present invention, by using the characteristics of the eye according to age, the color temperature is applied to the TV several representative color temperature according to the age, so that the viewer can choose to see according to his eyes.

That is, an example made by setting the viewing age selection mode for each age group with reference to FIG. 5 is shown in FIG. 7, which shows the color temperature according to the age of the viewing age selection mode divided into four stages.

When the viewer selects the white balance mode through the key input unit (eg, the remote controller) 25 as described above, the white balance data is input to the controller 27 through the preamplifier 26.

Then, the control unit 27 displays the white balance mode on the OSD screen so that the viewer can select a specific white balance mode.

When the viewer selects one of the white balance data, the selected white balance data is output to the video signal processor 24, and the video signal processor 24 adjusts the color signal to match the white balance data and then the color signal gain processor 28. ) To adjust the gain and DC level of the color signal.

Then, the color signal R.G.B whose gain and DC level are adjusted by the color signal gain processing unit 28 is changed to the white balance selected by the viewer by the color temperature reproduced by the CPT through the CPT control unit 29.

On the other hand, when the white balance mode is the release mode, the color temperature is 11,000 ° K, which is the color temperature set during the initial TV production, and the viewer always maintains the color temperature of the release mode unless the viewer releases or selects the age selection mode.

The color temperature is 8,500 ° K in the 20s or less mode, the color temperature is 9,500 ° K in the 30s mode, the color temperature is 12,000 ° K in the 40s mode, and the color temperature is 13,000 ° K in the 50s mode or more.

Here, the color temperature of 8,500 ° K is a strong white color of red, and the larger the color temperature value, the stronger the blue color of white.

In other words, as the age increases, as the age increases, shorter wavelengths, ie, the cognitive ability of the eye for the blue system, decrease, so that the color temperature is appropriately divided into four stages as shown in FIG. For those in their twenties, the color temperature was set to a strong white color, and the color temperature value was increased so that blue became a strong white color as the age increased.

As described above, the present invention compensates the cognitive ability of the color felt by the eyes as the age of TV viewers, ie, people, increases. The fixed uniform image data of the image is changed by the image adjustment data according to the viewer's choice, so that the light of weak areas of each age group is reinforced by the light transmittance according to the lens age of the human eye. It is to make TV comfortable to watch TV.

Claims (5)

A storage unit for storing a plurality of age-specific image adjustment data; A control unit which selects one of the plurality of image adjustment data and outputs it to an image processing unit according to a user's adjustment input; An image signal processing unit for outputting an image signal adjusted by the image adjustment data input by the control of the controller; Age-based image compensation device, characterized in that comprises a. The image compensating device for each age group according to claim 1, wherein the image adjustment data is white balance data. The image compensation apparatus of claim 2, wherein the white balance data is set to at least three levels of color temperature suitable for age to compensate for lens light transmittance of a human eye according to age. The age group of claim 1, wherein the control unit displays a white balance mode, which is an initial setting mode of white balance and a white balance mode for each age group, on the OSD screen when a viewer selects a white balance made for each age group through a key input unit. Star video compensation device. According to claim 2, The white balance for each age group is the TV screen color temperature is 11,000 ° K when the viewing age mode is the release mode, the TV screen color temperature is 8,500 ° K when the viewing age mode is 20 or less, the viewing age mode is 30 When the TV screen color temperature is 9,500。K, when the viewing age mode is 40, the TV screen color temperature is 12,000。K, and when the viewing age mode is 50 or more, the TV screen color temperature is set to 13,000。K. Device.