KR101238698B1

KR101238698B1 - Three-dimension video display apparatus and its method

Info

Publication number: KR101238698B1
Application number: KR1020110037285A
Authority: KR
Inventors: 박현호; 강태형; 장명기
Original assignee: 주식회사 포디존
Priority date: 2011-04-21
Filing date: 2011-04-21
Publication date: 2013-03-04
Also published as: WO2012144702A1; KR20120119394A

Abstract

The present invention relates to a stereoscopic image display apparatus, comprising: an image input unit (110) for inputting a left eye image and a right eye image, a synchronization unit (120) for synchronizing the left eye image and the right eye image, and the angles of the synchronized left eye image and the right eye image A scaling unit 130 for adjusting the image size to correspond to the image size of the display device, and an image synthesis and correction unit 140 for synthesizing the left eye image and the right eye image transmitted from the scaling unit 130 into stereoscopic images, and then improving the sharpness. And a projection setting unit 150 for setting a projection method for projecting a stereoscopic image with improved sharpness, and a projection unit 160 for projecting a stereoscopic image according to the set projection method.

Description

Stereoscopic Display Device {THREE-DIMENSION VIDEO DISPLAY APPARATUS AND ITS METHOD}

The present invention relates to a stereoscopic image display device capable of displaying a 2D image as a stereoscopic image which is a 3D image.

As is well known, the 3D image may be provided by allowing different images to be recognized by the viewer's left and right eyes, and by synthesizing the recognized left and right images.

In particular, in the case of a stereoscopic screen-type stereoscopic image, the left eye image and the right eye image are simultaneously displayed or alternately displayed on the stereoscopic screen. It may be provided in such a way as to be able to see, and the image information of the left eye image and the right eye image so that the image can be recognized in three dimensions in the brain of the viewer.

In addition, when simultaneously displaying a left eye image and a right eye image on a stereoscopic screen, a polarizing plate having respective patterns having different polarization characteristics may be installed on the display device. Each of these patterns may be alternately arranged in a row or arranged in a checkerboard pattern.

Conventionally, in order to display a stereoscopic image, a 3D display device must be manufactured to display a left eye image and a right eye image simultaneously or alternately. In order to view a stereoscopic image, it is inconvenient to purchase a separate 3D display device. There was a ham.

The present invention is to provide a stereoscopic image display apparatus that can display a stereoscopic image by synthesizing a left eye image and a right eye image and displaying the same on a 2D LED display using a polarization filter.

In addition, the present invention provides a stereoscopic image display device that can provide a clear and uniform stereoscopic image by improving and combining the sharpness of the left eye image and the right eye image, and by uniformly adjusting the projection position to display on the 2D LED display device. I would like to.

The objects of the embodiments 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 embodiment of the present invention, the image input unit 110 to which the left eye image and the right eye image are input, the synchronization unit 120 for synchronizing the left eye image and the right eye image, and each image of the synchronized left eye image and the right eye image A scaling unit 130 for adjusting the size corresponding to the display device image size, and an image synthesis and correction unit for synthesizing the left eye image and the right eye image transmitted from the scaling unit 130 into stereoscopic images, 140, a projection setting unit 150 for setting a projection method for projecting the stereoscopic image with improved sharpness, and a stereoscopic image including a projection unit 160 for projecting the stereoscopic image according to the set projection method. A display device may be provided.

In the present invention, the left eye image and the right eye image constituting the 3D image are synchronized and scaled, and then synthesized into a stereoscopic image, the sharpness of the synthesized image is improved, and adjusted to be uniformly projected on the LED to the 2D display device. By projecting, it is possible to provide a stereoscopic image at no additional cost.

1 is a block diagram of a stereoscopic image display device according to an embodiment of the present invention;
2A to 2C are views illustrating a polarizing plate provided in a stereoscopic image display device according to an embodiment of the present invention;
3 is a diagram illustrating a 2D LED array of a stereoscopic image display device according to an embodiment of the present invention;
4 is a view for explaining a polarizing filter provided in the polarizing glasses according to the embodiment of the present invention;
5 is a diagram illustrating a polarizer disposed on a stereoscopic image display device according to an embodiment of the present invention;
6 is a diagram illustrating providing a stereoscopic image using a stereoscopic image display device according to an exemplary embodiment of the present invention.

Advantages and features of the embodiments of the present invention, and methods of achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

Each block of the accompanying block diagrams and combinations of steps of the flowchart may be performed by computer program instructions. These computer program instructions may be loaded into a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus so that the instructions, which may be executed by a processor of a computer or other programmable data processing apparatus, And means for performing the functions described in each step are created. These computer program instructions may be stored in a computer usable or computer readable memory that can be directed to a computer or other programmable data processing equipment to implement functionality in a particular manner, and thus the computer usable or computer readable memory. It is also possible for the instructions stored in to produce an article of manufacture containing instruction means for performing the functions described in each block or flowchart of each step of the block diagram. Computer program instructions may also be mounted on a computer or other programmable data processing equipment, such that a series of operating steps may be performed on the computer or other programmable data processing equipment to create a computer-implemented process to create a computer or other programmable data. Instructions that perform processing equipment may also provide steps for performing the functions described in each block of the block diagram and in each step of the flowchart.

In addition, each block or step may represent a portion of a module, segment or code that includes one or more executable instructions for executing a specified logical function (s). It should also be noted that in some alternative embodiments, the functions noted in the blocks or steps may occur out of order. For example, the two blocks or steps shown in succession may in fact be executed substantially concurrently or the blocks or steps may sometimes be performed in the reverse order, depending on the functionality involved.

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

1 is a block diagram of a stereoscopic image display device according to an exemplary embodiment of the present invention. Hereinafter, the stereoscopic image display device will be described as a 2D LED display device.

Referring to FIG. 1, a stereoscopic image display device according to an exemplary embodiment of the present invention includes an image input unit 110, a synchronization unit 120, a scaling unit 130, an image synthesis and correction unit 140, and a projection setting unit 150. ), The projection unit 160, and the like.

The image input unit 110 receives a left eye image and a right eye image. When the left eye image and the right eye image constituting the stereoscopic image (that is, the 3D image) are input, the left eye image and the right eye image are input to the synchronizer 120. Can provide.

The synchronization unit 120 synchronizes the left eye image and the right eye image. When the left eye image and the right eye image are provided from the image input unit 110, the left eye image according to image information (eg, time, frame, etc.) of each image is provided. After synchronizing the right eye image with the scaling unit 130 may be provided.

The scaling unit 130 adjusts the size of each image of the synchronized left eye image and the right eye image corresponding to the display device image size. When the synchronized left eye image and the right eye image are provided from the synchronization unit 120, the scaling unit 130 adjusts each image size. The image may be adjusted to the same image size corresponding to the image size of the display device and provided to the image synthesis and correction unit 140.

The image synthesis and correction unit 140 synthesizes a left eye image and a right eye image into a stereoscopic image and then improves clarity. The high frequency component of the image, the method of enhancing the contrast of the image, the method of using a look-up table, and the method of enhancing the edge characteristics of the image. The image may be provided to the projection setting unit 150 by improving the sharpness of the image.

For example, a technique for sharpening an image will be described. In the case of a method of enhancing a high frequency component of an image, for example, a low frequency component of an image is removed to enhance a high frequency component or a high frequency component of an image. By passing through the bay, it is possible to further emphasize the detail of the image.

In addition, in the case of the method of enhancing the contrast of the image, for example, by sharply adjusting the contrast ratio of each pixel of the image, the sharpness of the image may be improved.

In the case of using the lookup table, for example, by using a lookup table of an array having color values of pixels, the color contrast value may be largely adjusted, thereby improving image sharpness.

On the other hand, in the case of a method of enhancing the edge characteristics of the image, for example, by detecting the edge in the image, and by sharply adjusting the pixels of the detected edge, it is possible to improve the sharpness of the projection.

The projection setting unit 150 sets a projection method for projecting a stereoscopic image having improved sharpness. When a stereoscopic image having improved sharpness is provided from the image synthesizing and correcting unit 140, the projection setting unit 150 projects the stereoscopic image onto the LED. After setting the projection method, the image and projection method information may be provided to the projection unit 160 to project a stereoscopic image according to the projection method. Such a projection method may be set according to the shape of the polarizing plate provided in the stereoscopic image display apparatus according to the embodiment of the present invention, may be set using an even random number generator, and may be set using a projection matrix and a non-projection matrix. Can be.

For example, the projection method will be described. In the case of the projection method set according to the shape of the polarizing plate included in the stereoscopic image display device, the vertical polarizing plate 200A as shown in FIG. 2A is paired with the odd rows 210a. By dividing and selecting the execution 210b, the projecting LED can be set, and in the horizontal polarizer 200B as shown in FIG. 2B, the odd columns 220a and the even columns 220b are separately selected and projected. The LED may be set, and in the case of the lattice polarizer 200C as shown in FIG. 2, the LED to project may not be set separately.

In addition, in the case of the projection method set using the uniform random number generator, the projected LED can be set by generating a random number having an even LED projection distribution using the uniform random number generator.

On the other hand, in the case of the projection method set using the projection matrix and the non-projection matrix, after storing the row information and the column information of the projected LEDs, the rows and columns of the non-projected LEDs are equally selected to thereby project the LEDs to project. Can be set.

The projection unit 160 projects the stereoscopic image according to the set projection method, and projects the stereoscopic image provided from the projection setting unit 160 to the selected LED of the 2D LED panel according to the set projection method. As shown in FIG. 3, the 2D LED panel 300 may include a single-color or three-color LED 310 of one color (R, G, B: full color) as a single module, and a plurality of LED modules may be n. The 2D LED panel 300 may be configured by being arranged (arranged) on a panel of ㅧ m.

For example, FIG. 4 is a view for explaining a polarizing filter provided in the polarizing plate and the polarizing glasses according to the embodiment of the present invention, and FIG. 5 illustrates the arrangement of the polarizing plate in the stereoscopic image display device according to the embodiment of the present invention. 6 is a diagram illustrating providing a stereoscopic image using a stereoscopic image display device according to an exemplary embodiment of the present invention.

4 to 6, the polarization filter of the polarizing plate provided in the 2D display device and the polarization filter provided in the polarizing glasses to provide a stereoscopic image, as shown in FIG. 4, applies a linear polarization method, a circular polarization method, or the like. The linearly polarized light and the circularly polarized light can transmit only light of a specific direction wavelength.

The polarizing plate 200A having the linearly polarized light or circularly polarized light filter may be attached to the front surface of the 2D LED panel 300 as shown in FIG. 5. Here, the polarizing plate 200A is illustrated using the vertical polarizing plate as an example.

In addition, as illustrated in FIG. 6, the linearly polarized light or circularly polarized light polarizing filter included in the polarizing glasses 400 includes a polarizing filter of a method corresponding to the polarizing filter provided in the polarizing plate 200A. Viewers can watch a stereoscopic image displayed through the 2D LED panel 300 of the stereoscopic image display device according to the embodiment.

Therefore, by synchronizing and scaling the left eye image and the right eye image constituting the 3D image, synthesizing it into a stereoscopic image, improving the sharpness of the synthesized image, and adjusting it to be uniformly projected on the LED to project on the 2D display device. In addition, the stereoscopic image may be provided at no additional cost.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be readily apparent that such substitutions, modifications, and alterations are possible.

110: video input unit 120: synchronization unit
130: scaling unit 140: image synthesis and correction unit
150: projection setting unit 160: projection unit

Claims

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An image input unit 110 to which a left eye image and a right eye image are input;
A synchronization unit 120 for synchronizing the left eye image and the right eye image;
A scaling unit 130 for adjusting each image size of the synchronized left eye image and right eye image corresponding to the display device image size;
An image synthesizing and correcting unit 140 for synthesizing the left eye image and the right eye image transmitted from the scaling unit 130 into a stereoscopic image and then improving sharpness;
A projection setting unit 150 for setting a projection method for projecting the stereoscopic image having improved sharpness;
Projection unit 160 for projecting the stereoscopic image according to the set projection method
Including but not limited to:
The image synthesizing and correcting unit 140 enhances the sharpness in a manner of enhancing the high frequency component of the image.

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An image input unit 110 to which a left eye image and a right eye image are input;
A synchronization unit 120 for synchronizing the left eye image and the right eye image;
A scaling unit 130 for adjusting each image size of the synchronized left eye image and right eye image corresponding to the display device image size;
An image synthesizing and correcting unit 140 for synthesizing the left eye image and the right eye image transmitted from the scaling unit 130 into a stereoscopic image and then improving sharpness;
A projection setting unit 150 for setting a projection method for projecting the stereoscopic image having improved sharpness;
Projection unit 160 for projecting the stereoscopic image according to the set projection method
Including but not limited to:
The image synthesizing and correcting unit 140 enhances the sharpness using a lookup table.

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The method according to claim 2 or 4,
The projection setting unit 150 sets the projection method by selecting an odd row and an even row when the stereoscopic image display apparatus is provided with a vertical polarizer.

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The method according to claim 2 or 4,
The projection setting unit 150 sets the projection method by storing the information of the rows and columns to be projected, and then additionally selecting the non-projected rows and columns evenly.