KR101247501B1

KR101247501B1 - Stereopic 3 Dimension Display Device

Info

Publication number: KR101247501B1
Application number: KR1020110087166A
Authority: KR
Inventors: 김재도
Original assignee: 김재도
Priority date: 2011-08-30
Filing date: 2011-08-30
Publication date: 2013-03-25
Also published as: KR20130024013A

Abstract

According to the present invention, when the 3D cognitive ability of the left eye and the right eye is different, the 3D image of the left eye and the right eye is equally recognized by adjusting the image recognized by the right eye and the image perceived by the left eye according to each eye. An image display device comprising: an image display unit for displaying a 3D image; an image storage unit for dividing and storing an image for adjusting left eye and right eye screen; an adjustment for adjusting a screen while displaying an image of the image adjustment unit for displaying the screen And a screen adjustment signal input unit for receiving a signal; a screen adjustment unit for dividing a left eye image and a right eye image according to an adjustment signal input through the screen adjustment signal input unit.

Description

Three-dimensional image display device {Stereopic 3 Dimension Display Device}

The present invention relates to a 3D image display. Specifically, when the 3D cognitive ability of the left eye and the right eye is different, the left eye and the right eye are equally adjusted by adjusting the image recognized by the right eye and the image perceived by the left eye according to each eye. A three-dimensional image display device for recognizing a 3D image.

TV broadcasting technology has made two major technological advances. The first is the transition from black and white TV to color TV, and the second is the conversion from analog TV to digital HDTV. In 2012, most of the industrialized countries such as the US and Europe will end analog TV broadcasting and switch to digital TV broadcasting completely. In order to explore the development direction of TV broadcasting afterwards, Efforts are accelerating.

Many experts have no opinion that future TV broadcasting will be developed to provide more realistic contents, and 3DTV and UHDTV are the representative technologies. While UHDTV is intended to increase the realism by improving the screen resolution more than HDTV, 3DTV is a direction to get a more realistic feeling by providing a three-dimensional stereoscopic feeling beyond the limits of the two-dimensional image of the conventional TV.

3DTV uses a binocular vision principle in which a human perceives a three-dimensional world through two eyes, as shown in FIGS. 1A and 1B.

In other words, humans acquire two slightly different images through two eyes located about 6.5cm away from the horizontal direction, and our brain analyzes the difference between these two images to reconstruct a single 3-dimensional image with depth. Recognize.

Therefore, in 3DTV, the key technology is to acquire two images that are identical to those of our eyes in real life and show them in the left and right eyes without mixing each other.

3D can be referred to as an image that can feel a three-dimensional object, and physiological factors that can sense a three-dimensional feeling can be classified into parallax, control, and congestion of both eyes.

If you choose a point and close one eye, the image on your left and right eyes will be different. The more visible the image is, the closer the eye is to the difference, the farther away the difference becomes, which is called binocular disparity.

And our eyes, like the camera, have a lens called the lens, and they adjust the focus by varying the thickness of the lens by tensioning / relaxing the muscle called the cadaver. This ciliary muscle tension or relaxation to change the thickness of the lens is called control.

When looking at the object with both eyes, the closer the object is to the eye, the more it is necessary to rotate both eyes inward, where the muscles attached to the nose (inner muscle) of the muscles attached to the eye (the extraocular muscles) contract. It is called runaway and this runaway acts as a means of feeling the distance.

2A and 2B illustrate a 3D TV implementation method, FIG. 2A illustrates the use of a spatial division polarized glasses, and FIG. 2B illustrates the use of a time division shutter glasses.

3D means stereoscopic 3D and 3D image.

Our eyes recognize stereoscopic images by looking at the same object from different angles of the right and left eyes and combining the two images into one. After making these two images by using these two images, the right eye and the left eye recognize each 3D image simultaneously.

In order to recognize the 3D image in 3D or improve the cognitive effect, the left and right eyes should have good visual acuity or corrected vision, and both eyes should be able to see simultaneously with good binocular vision.

However, if there are strabismus that both eyes cannot see at the same time, 3D image recognition is impossible. Even if there is no strabismus, 3D visual acuity (stereoscopy) is low, even if one eye's visual acuity or naked eye or corrected visual acuity is significantly lower, even if the 3D image cannot be recognized.

At present, 3D TVs have developed technologies related to implementation methods as shown in FIGS. 2A and 2B. However, as described above, due to deterioration of 3D cognitive ability due to different eyesight or a difference in naked eyes and corrected vision in right and left eyes, as described above. Techniques and methods for solving the problem have not been presented.

According to the present invention, when the 3D cognitive ability of the left and right eyes is different, the right eye and the left eye are adjusted to each eye so that the left and right eyes can recognize the 3D image in the same way. It is an object of the present invention to provide a three-dimensional image display device for maximizing 3D perception even to people with abnormalities.

The present invention provides a three-dimensional image display device having a right eye screen adjustment image and a left eye screen adjustment image, and dividing the left eye image and the right eye image to adjust the screen value according to the viewer's eye condition to maximize 3D image recognition ability. The purpose is to provide.

The present invention is to maximize the 3D recognition function by adjusting the screen value to suit each person's eyes, brightness, sharpness, color, contrast (difference between the background and the picture), left and right eye functions for the image of the left and right eyes It is an object of the present invention to provide a three-dimensional image display device that can be adjusted to fit.

The present invention is equipped with a device that can detect the human eye condition, such as a video camera automatically extracts the screen adjustment value to adjust the screen according to the viewer's eye condition and viewing distance and the distance between the center point of the pupil of the left and right eyes The purpose is to provide a three-dimensional image display device to enhance the convenience of the viewer.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, a three-dimensional image display device includes: an image display unit displaying a 3D image; a screen adjustment image storage unit for dividing and storing an image for adjusting a left eye and a right eye screen; an image storage unit for an image adjustment unit And a screen adjustment signal input unit for receiving an adjustment signal for screen adjustment in the displayed state; a screen adjustment unit for dividing the left eye image and the right eye image according to the adjustment signal input through the screen adjustment signal input unit. It features.

According to an aspect of the present invention, there is provided a three-dimensional image display device comprising: an image display unit for displaying a 3D image; a screen adjustment image storage unit for dividing and storing an image for adjusting a left eye and a right eye screen; Left eye and right eye state detection unit for detecting the change in the eye state of the viewer according to the flow of the screen in the displayed state; Left eye, right eye for calculating the screen adjustment value from the viewer eye state information respectively detected by the left eye, right eye state detection unit And a screen adjustment unit for adjusting the screen by dividing the left eye image and the right eye image according to the adjustment values calculated by the left eye and right eye screen adjustment value calculator.

The screen adjusting unit may include a brightness adjusting unit, a color adjusting unit, a contrast adjusting unit, and a size adjusting unit for adjusting brightness, color, contrast, and size, respectively.

The left and right eye state detection units may be image cameras or detection sensors installed in a main body of the 3D image display device.

The screen adjustment unit may further include a parallax adjustment unit that adjusts the disparity between the left eye image and the right eye image by using information about the viewing distance and the distance between the center point of the pupil of the left and right eyes.

Such a three-dimensional image display device according to the present invention has the following effects.

First, the image perceived by the right eye and the image perceived by the left eye are adjusted appropriately for each eye so that the left and right eyes can recognize 3D images in the same way.

Second, the 3D cognitive ability of the left eye and the right eye is different, thereby enhancing the 3D image recognition ability of the person, thereby solving the inconvenience of the viewer and improving the 3D cognitive ability.

Third, the present invention provides a right eye screen adjustment image and a left eye screen adjustment image, and divides a left eye image and a right eye image to adjust screen values according to an eye state of a viewer.

Fourth, it can be adjusted to match the brightness, sharpness, color, contrast (difference between the background and the picture), and the functions of the left and right eyes for the images of the left and right eyes.

Fifth, the device is provided with a device capable of detecting a human eye condition such as a video camera to automatically extract the screen adjustment value and adjust the screen according to the viewer's eye condition to increase the convenience of the viewer.

1A and 1B are schematic diagrams for explaining the principle of 3D TV.
2A and 2B are diagrams for describing a 3D TV implementation method.
3 is a configuration diagram for explaining a state difference of an image recognized according to a visual acuity difference
4 is a block diagram illustrating a three-dimensional image display device according to a first embodiment of the present invention.
5 is a flowchart illustrating screen adjustment of a 3D image display device according to a first embodiment of the present invention.
6 is a block diagram illustrating a three-dimensional image display device according to a second embodiment of the present invention.
7 is a flowchart illustrating screen adjustment of a 3D image display device according to a second embodiment of the present invention.
8 is a block diagram showing a principle for adjusting the parallax between the left eye image and the right eye image in the 3D image display method according to the present invention

Hereinafter, a preferred embodiment of the 3D image display device according to the present invention will be described in detail.

Features and advantages of the 3D image display device according to the present invention will become apparent from the detailed description of each embodiment below.

3 is a configuration diagram for explaining a state difference of an image recognized according to a visual acuity difference.

4 is a block diagram illustrating a three-dimensional image display device according to a first embodiment of the present invention, and FIG. 5 is a flowchart illustrating screen adjustment of the three-dimensional image display device according to the first embodiment of the present invention.

The present invention is provided with an image for adjusting the right eye screen and an image for adjusting the left eye, and by dividing the left eye image and the right eye image, the screen value is adjusted according to the eye state of the viewer to maximize the 3D image recognition ability.

Some people have low 3D image perception when their eyes do not have the same vision.

The present invention adjusts the image perceived by the right eye and the image perceived by the left eye to suit each eye to overcome the above eye abnormalities so that the left eye and the right eye are recognized the same.

To this end, a three-dimensional image display device according to the present invention includes a right eye screen adjustment image and a left eye screen adjustment image, and the viewer displays each image, and the brightness, clarity, color, and contrast of the corresponding image (the background and the picture) Difference), adjust it to fit the functions of the left and right eyes.

The screen adjustment is performed by the viewer directly adjusting the screen while the video is displayed, and when the video is displayed with a video camera or a sensor, between the eye state of the viewer and the viewing distance and the center point of the pupil of the left and right eyes. The method includes automatically adjusting screens by automatically calculating screen adjustment values by tracking changes in distance.

A feature of the present invention is to adjust the screen by dividing the left and right eyes in order to enhance the 3D image recognition ability. As described above, when screen adjustment is performed without dividing the left eye and the right eye, the viewer perceives the image centered on the eye of the viewer with the higher ability.

As shown in FIG. 4, the 3D image display device according to the first exemplary embodiment of the present invention stores an image display unit 36 for displaying a 3D image and a right eye image adjustment image for storing a standard image for adjusting the right eye screen. The image of the left eye screen adjustment image storage unit 38, which stores a standard image for adjusting the left eye screen, the image storage unit 37 for adjusting the right eye screen, and the image storage unit 38 for adjusting the left eye screen, A screen adjustment signal input unit 31 which receives an adjustment signal for screen adjustment in the displayed state, and a brightness controller which adjusts brightness, color, contrast, and size according to the adjustment signal input through the screen adjustment signal input unit 31, respectively. 32, the color adjustment part 33, the contrast adjustment part 34, and the size adjustment part 35 are comprised.

Here, the screen adjustment signal input unit 31 may be an input button or a remote controller configured in the 3D TV main body, and the present invention is not limited thereto and may be changed and added to other input means capable of inputting a signal at the viewer's choice. Of course.

As a configuration for adjusting the screen, a configuration block for adjusting other factors may be added without being limited to the brightness adjusting unit 32, the color adjusting unit 33, the contrast adjusting unit 34, and the size adjusting unit 35. .

Such a three-dimensional image display device according to the present invention in order to improve the 3D image recognition ability due to the binocular vision difference, as shown in Figure 3 the left eye and right eye to see the sharpness, brightness, color, contrast, etc. There are various and different adjustments to suit.

By dividing the left and right eyes and adjusting the screen as described above, it is possible to recognize 3D more accurately when binocular vision is different.

In FIG. 3, if the right eye is good and the left eye is poor, the screen of the right eye may be adjusted as a DE (Dominant Eye) screen, and the eye of the poor left eye may be adjusted as NDE (NonDominant Eye). At this time, the adjustment of the image includes all of the picture sharpness, color, contrast, and size.

By doing so, it is possible to improve 3D image recognition ability of those with binocular corrected vision due to amblyopia and corneal haze, cataract, retina, scoliosis and brain damage due to correction visual acuity, as well as with binocular vision difference due to refractive error. .

The screen adjustment method using the 3D image display device according to the first embodiment of the present invention is as follows.

As shown in FIG. 5, the left eye image adjustment is performed while the left eye adjustment image stored in the left eye adjustment image storage unit 38 is displayed (S401).

Subsequently, when the viewer inputs the brightness adjustment signal through the screen adjustment signal input unit 31, the brightness adjustment unit 32 adjusts the screen according to the corresponding input signal (S403).

When the viewer inputs the color adjustment signal through the screen adjustment signal input unit 31, the color adjustment unit 33 adjusts the screen according to the corresponding input signal (S404).

When the viewer inputs the contrast adjustment signal through the screen adjustment signal input unit 31, the contrast adjustment unit 34 adjusts the screen according to the corresponding input signal (S405).

When the viewer inputs the scaling signal through the screen adjustment signal input unit 31, the size adjusting unit 35 adjusts the screen according to the corresponding input signal (S406).

When the screen adjustment is performed as described above, it is checked whether all the binocular screen adjustments are completed (S407), and the right eye image screen adjustment is performed while the right eye screen adjustment image of the right eye screen adjustment image storage unit 37 is displayed (S408). (S409)

The right eye image display adjustment is also performed as follows.

When the viewer inputs the brightness adjustment signal through the screen adjustment signal input unit 31, the brightness adjustment unit 32 adjusts the screen according to the corresponding input signal (S403).

As described above, the screen adjustment method using the 3D image display device according to the present invention may be performed in a different screen adjustment order than the left eye and the right eye.

As described above, the present invention is to perform a correction function using various screen adjustment factors, and allows adjustment while comparing a right eye image and a left eye image.

The screen created by integrating each item is designed to maximize 3D image recognition ability. Each screen adjustment value can be set as follows.

For example, function adjustment for brightness 1 to 10, adjustment for contrast 1 to 10, adjustment for color 1 to 10 (white (0), purple (1) red (10)), adjustment for size 1 to 10 You can set it to 10 and set level 5 to the most common average value.

If the viewer with the cataract of the right eye meets the best video adjustment state when watching 3D video, the screen adjustment is performed as follows.

Since the left eye is a normal state, the brightness (5), contrast (5), color (0), and size (5) are all adjusted to average, and the image corresponding to the right eye is brightness (7: slightly lighter) and contrast (7: screen). Darker), color (5: closer to yellow).

Hereinafter, a 3D image display device and a screen adjusting method according to the second embodiment of the present invention will be described.

6 is a block diagram illustrating a three-dimensional image display device according to a second embodiment of the present invention, and FIG. 7 is a flowchart illustrating screen adjustment of the three-dimensional image display device according to the second embodiment of the present invention.

In the three-dimensional image display device according to the second embodiment of the present invention, the viewer does not input a screen adjustment value, but the screen flows while the screen adjustment image is displayed through an image camera or a detection sensor installed in the 3D TV. This is to adjust the screen automatically by tracking the change in the eye condition of the viewer.

As shown in FIG. 6, the 3D image display device according to the second embodiment of the present invention includes an image display unit 59 for displaying a 3D image and an image storage unit for adjusting the right eye screen, which stores a standard image for adjusting the right eye screen. 60), a left eye screen adjustment image storage unit 61 storing a standard image for left eye screen adjustment, and images of the right eye screen adjustment image storage unit 60 and a left eye screen adjustment image storage unit 61 are displayed. The left eye state detection unit 51 and the right eye state detection unit 52 for tracking and detecting the change in the eye state of the viewer according to the flow of the screen in the state, and the left eye from the viewer eye state information detected by the left eye state detection unit 51. A left eye screen adjustment value calculator 53 for calculating a screen adjustment value and a right eye screen adjustment value calculator 5 for calculating a right eye screen adjustment value from viewer eye state information detected by the right eye state detection unit 52. 4) and a brightness adjusting unit 55 and a color adjusting unit for adjusting brightness, color, contrast, and size according to the adjustment values calculated by the left eye screen adjustment value calculator 53 and the right eye screen adjustment value calculator 54, respectively. 56, a contrast adjustment unit 57, a size adjustment unit 58, and a parallax adjustment unit 62 for adjusting the parallax variation of the left eye image and the right eye image.

Here, the left eye state detection unit 51 and the right eye state detection unit 52 may be changed to other means capable of detecting a viewer's eye state in addition to an image camera or a detection sensor installed in the 3D TV.

In addition, the configuration for adjusting the screen is not limited to the brightness adjusting unit 55, the color adjusting unit 56, the contrast adjusting unit 57, the size adjusting unit 58, it is obvious that a configuration block for adjusting other factors may be added. .

The 3D image display device according to the present invention may vary the sharpness, brightness, color, contrast, etc. of the image viewed by the left and right eyes according to the eye state in order to improve the 3D image recognition ability due to the binocular vision difference. To adjust.

The screen adjustment method using the 3D image display device according to the second embodiment of the present invention is as follows.

As shown in FIG. 7, the left eye image screen adjustment is performed while the left eye screen adjustment image stored in the left eye screen adjustment image storage unit 61 is displayed.

Subsequently, the left eye state detection unit 51 tracks and detects a change in the left eye state of the viewer according to the flow of the screen (S602), and the left eye screen adjustment value calculation unit 53 uses the left eye in the detection signal of the left eye state detection unit 51. The screen adjustment value is calculated (S603).

The brightness adjustment unit 55, the color adjustment unit 56, the contrast adjustment unit 57, and the size adjustment unit 58 adjust the screen by using the calculated left eye screen adjustment value (S604).

Subsequently, when the left eye screen adjustment is completed (S605), the right eye image screen adjustment is performed while displaying the right eye screen adjustment image stored in the right eye screen adjustment image storage unit 60 (S606).

Subsequently, the right eye state detection unit 52 tracks and detects the right eye state change of the viewer according to the flow of the screen (S607), and the right eye screen adjustment value calculator 54 detects the right eye in the detection signal of the right eye state detection unit 52. The screen adjustment value is calculated (S608).

The brightness adjustment unit 55, the color adjustment unit 56, the contrast adjustment unit 57, and the size adjustment unit 58 adjust the screen by using the calculated right eye screen adjustment value (S609).

When the right eye screen adjustment is completed as described above (S610), it is determined whether parallax adjustment is necessary (S611).

If the parallax adjustment is necessary due to the pupillary distance change and the viewing distance change, the parallax between the left eye image and the right eye image is changed by changing the information about the center distance between the pupils of the left and right eyes at an angle (S612).

This is because the stereoscopic effect varies depending on the viewing distance and the distance between pupil vertices, which are different for each person, to adjust this to an optimal state.

The parallax adjustment will be described in detail as follows.

FIG. 8 is a block diagram illustrating a principle of adjusting parallax between a left eye image and a right eye image by changing information about a center distance between the pupils of a left eye and a right eye in an angle in a 3D image display method according to the present invention.

When the depth is constant in FIG. 8, when the pupillary distance PD and the viewing distance VD are changed, the left image and right image parallax DV must be changed.

In other words, the time difference (DV) between the left and right images increases as the interpupillary distance (PD) increases, and the left and right image differences (DV) increase, and as the viewing distance increases, the time difference (DV) between the left and right images increases. Decreases.

Building on this principle, PD: DV = (d + VD): d.

In this case, when PD and VD are measured using an eye tracking device, the parallax (DV) of the left image and the right image can be known by the following equation.

DV = PD * D / (d + VD)

At this time, depth (d) can also be changed. This is because the viewer sets the required value according to the desired amount, and the eye tracking device measures the PD and VD values that change frequently and inputs them in the above equation. The parallax (DV) of can also be changed freely.

In this case, 3D recognition is more effective in changing the viewing distance. And parallax adjustment based on the same principle can be applied even when the viewer is on the side rather than the front side.

As described above, the 3D image display device according to the present invention is a screen of left and right eyes, such as a 3D screen of a glasses-free type as well as a 3D TV and a computer by wearing all glasses regardless of an active and passive method. You can apply all of them to the screen that can be adjusted individually.

It will be understood that the present invention is implemented in a modified form without departing from the essential features of the present invention as described above.

It is therefore to be understood that the specified embodiments are to be considered in an illustrative rather than a restrictive sense and that the scope of the invention is indicated by the appended claims rather than by the foregoing description and that all such differences falling within the scope of equivalents thereof are intended to be embraced therein It should be interpreted.

31. Screen adjustment signal input 32. Brightness adjustment unit
33. Color adjuster 34. Contrast adjuster
35. Resize unit 36. Video display unit
37. Video storage unit for right eye screen adjustment 38. Video storage unit for left eye screen adjustment

Claims

An image display unit displaying a 3D image;
An image storage unit configured to divide and store an image for adjusting left and right eye screens;
A screen adjustment signal input unit which receives an adjustment signal for screen adjustment while the image of the screen adjustment image storage unit is displayed;
And a screen adjustment unit for dividing the left eye image and the right eye image according to the adjustment signal input through the screen adjustment signal input unit.

An image display unit displaying a 3D image;
An image storage unit configured to divide and store an image for adjusting left and right eye screens;
A left eye and right eye state detector for tracking and detecting a change in the eye state of the viewer according to the flow of the screen while the image of the screen adjustment image storage unit is displayed;
A left eye and right eye screen adjustment value calculator configured to calculate a screen adjustment value from viewer eye state information respectively detected by the left eye and right eye state detectors;
And a screen adjusting unit for dividing the left eye image and the right eye image according to the adjustment values calculated by the left eye and right eye screen adjustment value calculator.

The screen adjusting unit of claim 1 or 2,
And a brightness adjusting unit, a color adjusting unit, a contrast adjusting unit, and a size adjusting unit for adjusting brightness, color, contrast, and size, respectively.

The 3D image display device of claim 2, wherein the left and right eye state detection units are an image camera or a detection sensor installed in a main body of the 3D image display device.

The apparatus of claim 2, wherein the screen adjustment unit
And a parallax adjustment unit that adjusts the parallax between the left eye image and the right eye image using information of the viewing distance and the distance between the center points of the pupils of the left and right eyes.