KR101634768B1 - Display apparatus and 3D image providing method - Google Patents

Abstract

A display device and a 3D image providing method are disclosed. The display apparatus includes a user command receiving unit and a control unit for outputting a screen in which the output order of the left eye image and the right eye image is changed and a screen in which the output order of the left eye image and the right eye image are not changed. Thereby, it is possible to compare the images synchronized with the non-synchronized images on a single screen, so that the user can more easily know whether or not the synchronization is correct, and the user can directly select the synchronized image.

3D image, shutter glass

Description

[0001] The present invention relates to a display apparatus and a 3D image providing method,

The present invention relates to a display device and a 3D image providing method, and more particularly, to a display device using a shutter glass method and a 3D image providing method.

3D stereoscopic image technology has various applications such as information communication, broadcast, medical, education and training, military, game, animation, virtual reality, CAD, industrial technology, and the next generation 3D stereoscopic multimedia It can be said that it is core technology of information communication.

Generally, the three-dimensional sensation perceived by a person depends on the degree of thickness change of the lens depending on the position of the object to be observed, the angular difference between both eyes and the object, the difference in position and shape of the object on the left and right eyes, Time difference, and various psychological and memory effects.

Among them, the binocular disparity which appears when the human eyes are located about 6 ~ 7 cm apart in the horizontal direction is the most important factor of the stereoscopic effect. In other words, the binocular parallax is used to look at the angular difference of the subject. Due to this difference, the images coming into each eye have different phases. When these two images are transmitted to the brain through the retina, It is possible to feel the original three-dimensional stereoscopic image by precisely fusing each other.

The stereoscopic image display device is classified into a spectacle type using special glasses and a non-aniseed type using no special glasses. The spectrophotometer is a color filter system that separates images using a color filter having a complementary color relationship, a polarizing filter system that separates images of the left eye and the right eye using a light blocking effect by a combination of orthogonal polarizing elements, There is a shutter glass system which can sense a stereoscopic effect by alternately blocking the left and right eyes in response to a synchronizing signal for projecting a video signal on a screen.

Among them, the shutter glass method is a display method using the parallax of both eyes, and it synchronizes the on-off operation of the display device and the on / off of the left and right glasses so that images observed at different angles can recognize the spatial sensation due to the brain action Method.

On the other hand, according to such a shutter glass method, the timings at which the left eye image and the right eye image are outputted are changed from each other or the opening and closing timings of the left eye glass and the right eye glass are mutually changed. However, due to the nature of the 3D image, there is a problem that it is difficult for the user to easily know the fact that the timing is changed only by the image being watched.

Accordingly, it is required to search for a method for allowing the user to easily know whether or not the user is viewing an image that is synchronized with the left eye image, the left eye glass, or the right eye image and the right eyeglass.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for enabling a user to easily know whether or not the synchronization between the output timing of a 3D image and the opening / A display device, and a 3D image providing method.

According to an aspect of the present invention, there is provided a display apparatus including a user command receiving unit for receiving a user operation; Eye image and the right-eye image alternately, and when a predetermined command is inputted through the user command receiving unit, a first screen in which the output order of the left-eye image and the right-eye image is changed, And a second screen in which the output order is not changed are output together; And a GUI generating unit for generating a first GUI (Graphic User Interface) for selecting the first screen and a second GUI for selecting the second screen, wherein the control unit , The first GUI is output on the first screen, the second GUI is output on the second screen, and when the first GUI is selected, the output order of the left eye image and the right eye image is changed, And when the second GUI is selected, the output order of the left eye image and the right eye image is output to the entire screen without being changed.

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The first screen and the second screen may be divided into right and left or up and down, and output together.

When the first screen and the second screen are divided into right and left, the first screen is a screen in which the output order is changed with respect to the left part of the left eye image and the left part of the right eye image, The display order may not be changed for the right part of the left eye image and the right part of the right eye image.

When the first screen and the second screen are divided into upper and lower portions, the first screen is a screen in which the output order is changed with respect to the upper portion of the left eye image and the upper portion of the right eye image, The display order of the lower part of the left eye image and the lower part of the right eye image may not be changed.

The display apparatus according to an embodiment of the present invention further includes an image processing unit for receiving one image frame composed of a plurality of fields and extracting the left eye image and the right eye image in each field, The control unit may alternately output the left eye image and the right eye image extracted from each image frame from the plurality of image frames.

When the predetermined command is input, the controller outputs a first still image in which the output order of the left eye image and the right eye image is changed with respect to the current image frame, and a second still image in which the output order of the left eye image and the right eye image So that the second still images whose order is not changed can be outputted together.

When the preset command is input, the controller receives a first real-time image in which the output order of the left eye image and the right eye image is changed with respect to the continuously received image frame, and a second real- The second real-time image in which the output order of the right-eye image is changed can be output together.

The first screen and the second screen may be a screen in which one of the left eye image and the right eye image is displayed at the same time.

The preset command may be a key separately provided to the remote controller to change the order of the left eye image and the right eye image, or a command input to the user command receiver through a key provided on the display device.

According to another aspect of the present invention, there is provided a 3D image providing method comprising: a first output step of alternately outputting a left eye image and a right eye image; And a second output step of outputting a first screen in which the output order of the left eye image and the right eye image is changed and a second screen in which the output order of the left eye image and the right eye image are not changed, And a second output step of outputting a first GUI (Graphic User Interface) for selecting the first screen to the first screen and a second GUI And outputs the GUI to the second screen. When the first GUI is selected, the output order of the left eye image and the right eye image is changed and output to the entire screen. When the second GUI is selected, And outputting the same to the entire screen without changing the output order of the right eye image.

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The first screen and the second screen may be divided horizontally or vertically and output together.

If the first screen and the second screen are divided into left and right portions, the first screen is a screen in which the output order is changed with respect to the left portion of the left eye image and the left portion of the right eye image, The display order may not be changed for the right part of the left eye image and the right part of the right eye image.

If the first screen and the second screen are divided into upper and lower portions, the first screen is a screen in which the output order is changed with respect to the upper portion of the left eye image and the upper portion of the right eye image, The display order of the lower part of the left eye image and the lower part of the right eye image may not be changed.

According to another aspect of the present invention, there is provided a method of providing a 3D image, the method including receiving an image frame composed of a plurality of fields, and extracting the left eye image and the right eye image in each field, The first output step may receive a plurality of image frames and alternately output the left eye image and the right eye image extracted from each image frame.

In the second output step, when the preset command is input, a first still image in which the output order of the left eye image and the right eye image is changed with respect to the current image frame and a second still image in which the output order of the left eye image and the right eye image are changed, It is possible to output the second still image without changing the output order of the image.

Also, the second outputting step may include a first real-time image in which the output order of the left eye image and the right eye image is changed with respect to the continuously received image frame, and a second real- The second real-time image in which the output order of the left eye image and the right eye image is changed can be output together.

The first screen and the second screen may be a screen in which one of the left eye image and the right eye image is displayed at the same time.

In addition, the preset command may be input through a key provided on the remote controller or a key provided on the 3D image providing device to change the order of the left eye image and the right eye image.

As a result, it is possible to compare the images synchronized with the out-of-sync images on a single screen, so that the user can more easily know whether or not the output timing of the 3D image is synchronized with the opening and closing timings of the shutter glasses. Can be directly selected by the user and output.

Hereinafter, the present invention will be described in detail with reference to the drawings. In particular, the operation principle and configuration of a 3D (3-Dimension) image providing system will be described with reference to FIGS. 1 to 4, and a processing procedure for a 3D image will be described with reference to FIGS. 5A to 6 do. 7 to 9, a description will be made of a method of displaying a screen together with a change in order, and an operation flow of processing a 3D image will be described with reference to FIG.

≪ Operation principle and constitution of 3D image providing system >

1 is a diagram illustrating a 3D image providing system according to an embodiment of the present invention. 3, the 3D image providing system includes a camera 100 for generating a 3D image, a TV 200 for displaying a 3D image on a screen, and a shutter glass 300 for viewing a 3D image.

The camera 100 is a type of photographing device for generating a 3D image and generates a left eye image photographed for the purpose of providing the user's left eye and a right eye image photographed for the purpose of providing the user's right eye. That is, the 3D image is composed of the left eye image and the right eye image, and the left eye image and the right eye image are provided alternately to the left and right eyes of the user, respectively.

For this purpose, the camera 100 is composed of a left eye camera for generating a left eye image and a right eye camera for generating a right eye image, and an interval between the left eye camera and the right eye camera is considered from a separation distance between two eyes of a person.

The camera 100 transmits the photographed left eye image and the right eye image to the TV 200. In particular, the left eye image and the right eye image transmitted from the camera 100 to the TV 200 are transmitted in a format composed of only one of the left eye image and the right eye image in one frame, or the left eye image and the right eye image May be transmitted in a format configured to include all of them.

Hereinafter, the format of a 3D image transmitted to the TV 200 will be specifically described with reference to FIGS. 2A to 2F.

2A to 2F are views for explaining the format of a 3D image. In FIGS. 2A to 2F, the left eye image portion is displayed in white and the right eye image portion is displayed in black for convenience of explanation.

2A is a diagram illustrating a format of a 3D image according to a general frame sequence scheme. In the case of the frame sequence method, the format of the 3D image is a format in which one left eye image or one right eye image is inserted in one frame.

In this format, a 3D image having a resolution of 1920 * 1080 is converted into a frame including a left eye image L1 captured by a left eye camera, a right eye image R1 captured by a right eye camera, Frame containing the left eye image L2 taken by the camera -> frame containing the right eye image R2 taken by the right eye camera-> '.

FIG. 2B is a diagram illustrating a format of a 3D image according to a top-bottom method. The top-bottom method is also called a top-bottom division method. In this case, the format of the 3D image is a format including both the left-eye image and the right-eye image in one frame. Particularly, in the 3D video format according to the top-bottom system, the left eye image and the right eye image are divided into upper and lower parts, and the left eye image is provided on the upper side and the right eye image is provided on the lower side.

For this, the left eye image and the right eye image photographed by the camera 100 are scaled down in the vertical direction and converted into resolutions of 1920 * 540, respectively. Then, the reduced left eye image and the right eye image are converted into a 1920 * So that one frame is formed and transmitted to the TV 200.

In this format, a 3D image having a resolution of 1920 * 1080 is referred to as a frame including a left eye image L1 (image) photographed by a left eye camera and a right eye image R1 (image) photographed by a right eye camera. A frame containing the left eye image L2 (upper) photographed by the left eye camera and the right eye image R2 (lower) photographed by the right eye camera -> ... '.

2C is a diagram illustrating a format of a 3D image according to a side by side scheme. In the case of the side-by-side method, the format of the 3D image is a format including both the left eye image and the right eye image in one frame. Particularly, in the 3D image format according to the side-by-side method, the left eye image and the right eye image are divided into right and left, the left eye image is provided on the left side, and the right eye image is provided on the right side.

For this, the left eye image and the right eye image photographed by the camera 100 are reduced scaled in the left and right direction, respectively, and converted to a resolution of 960 * 1080, and then the left and right eye images are reduced So that one frame is formed and transmitted to the TV 200.

In this format, a 3D image having a resolution of 1920 * 1080 is divided into a left eye image L1 (left) photographed by the left eye camera and a right eye image R1 (right eye) photographed by the right eye camera. A frame including a left eye image L2 (left) photographed by the left eye camera and a right eye image R2 (right eye) photographed by the right eye camera-> '.

2D is a diagram illustrating a format of a 3D image according to a horizontal interleaving method. In the case of the horizontal interleave method, the format of the 3D image is a format including both the left eye image and the right eye image in one frame. In particular, the format of the 3D image according to the horizontal interleave method is a format in which the left eye image and the right eye image are alternately arranged in a row unit.

For this, the left eye image and the right eye image photographed by the camera 100 are scaled down in the vertical direction and converted into resolutions of 1920 * 540, respectively. Thereafter, the converted left eye image and the converted right eye image are converted into odd Alternatively, only one of the odd rows of the left eye image is extracted and only the image of the even-numbered row of the right eye image is extracted, and the image of odd rows and the image of the even rows May be combined to form a single frame.

For example, in the case of the format according to the above (1), the 3D image is the first row of the left eye image L1 captured by the left eye camera, the first row of the right eye image R1 captured by the right eye camera A second row of the left eye image L1 photographed by the left eye camera, a second row of the right eye image R1 photographed by the right eye image camera, 'Constitute one frame.

In the next frame, the first row of the left eye image L2 photographed by the left eye camera, the first row of the right eye image R2 photographed by the right eye camera, the left eye image L2 The second row of the right eye image R2 taken by the right eye image camera, '.

2E is a diagram illustrating a format of a 3D image according to a vertical interleave method. In the case of the vertical interleave method, the format of the 3D image is a format including both the left eye image and the right eye image in one frame. In particular, the format of the 3D image according to the vertical interleave method is a format in which the left eye image and the right eye image are alternately arranged in units of columns.

To this end, the left eye image and the right eye image photographed by the camera 100 are scaled down in the left and right directions, respectively, to be converted into a resolution of 960 * 1080, and then the converted left eye image and the converted right eye image are converted into odd Alternatively, only one of the odd rows of the left eye image is extracted and only the image of the even-numbered row of the right eye image is extracted, and the image of odd rows and the image of the even rows May be combined to form a single frame.

For example, in the case of the format according to the above (1), the 3D image is a first column of the left eye image L1 captured by the left eye camera, a first column of the right eye image R1 captured by the right eye camera The second row of the left eye image L1 photographed by the left eye camera, and the second row of the right eye image R1 photographed by the right eye image camera. 'Constitute one frame.

In the next frame, the first column of the left eye image L2 captured by the left eye camera, the first column of the right eye image R2 captured by the right eye camera, the left eye image L2 ), The second row of the right eye image (R2) taken by the right eye image camera, '.

FIG. 2F is a view showing a format of a 3D image according to a checkerboard method. In the case of the checkerboard method, the format of the 3D image is a format including both the left eye image and the right eye image in one frame. Particularly, the format of the 3D image according to the checkerboard method is a format in which the left eye image and the right eye image are alternately arranged in pixel units or pixel group units.

For this purpose, the left eye image and the right eye image captured by the camera 100 are extracted on a pixel-by-pixel or pixel-by-pixel basis, and are alternately arranged in the pixels or pixel groups constituting each frame.

For example, in the case of the 3D image format according to the checkerboard method, the 3D image is composed of a first row first column of the left eye image L1 photographed by the left eye camera, a first row first column of the right eye image A first row and a third column of a left eye image L1 taken by a left eye camera, a first row and a fourth column of a right eye image R1 taken by a right eye camera, 'Constitute one frame.

In the next frame, the first row first column of the left eye image L2 captured by the left eye camera, the first row second column of the right eye image R2 captured by the right eye camera, The first row and the third column of the captured left eye image L2, the first row and the fourth column of the right eye image R2 captured by the right eye camera, '.

1, the camera 100 determines a format of one of the above-described formats in advance, generates 3D images according to the determined format, and transmits the generated 3D images to the TV 200. FIG.

The TV 200 is a type of display device that receives a 3D image received from a photographing device such as the camera 100 or a 3D image transmitted from a broadcasting station after being edited / processed in the broadcasting station, Processes the received 3D image and displays it on the screen. In particular, the TV 200 refers to the format of the 3D image, and the left eye image and the right eye image are processed, and the processed left eye image and right eye image are time-divisionally displayed alternately.

In addition, the TV 200 generates a synchronization signal synchronized with a timing at which the left eye image and the right eye image are displayed in a time-division manner, and transmits the generated synchronization signal to the shutter glass 300.

For the description of the specific configuration of the TV 200, FIG. 3 will be referred to. 3 is a block diagram of a TV 200 according to an embodiment of the present invention.

The TV 200 according to the present embodiment includes an image receiving unit 210, an image processing unit 220, an image output unit 230, a control unit 240, a GUI (Graphic User Interface) A storage unit 260, a user command receiving unit 270, and an IR transmitting unit 280.

The image receiving unit 210 receives and demodulates a broadcast received from a broadcasting station or satellite via a wired or wireless network. The image receiving unit 210 is connected to an external device such as the camera 100 and receives 3D images from an external device. External devices can be connected wirelessly or wired via interfaces such as S-Video, Component, Composite, D-Sub, DVI, and HDMI.

As described above, the 3D image is an image composed of at least one frame, and includes a left eye image and a right eye image in one image frame, or each frame is composed of a left eye image or a right eye image. That is, the 3D image is an image generated according to one of the formats shown in FIG.

Accordingly, the 3D image received by the image receiving unit 210 may be in various formats. In particular, the 3D image received by the image receiving unit 210 may be in various formats, such as a general frame sequence method, a top-bottom method, a side by side method, a horizontal interleaving method, a vertical interleaving method, Lt; / RTI > format.

The image receiving unit 210 transmits the received 3D image to the image processing unit 220.

The image processing unit 220 performs processing such as video decoding, format analysis, video scaling, and the like on the 3D image received by the image receiving unit 210, and GUI addition.

In particular, the image processing unit 220 generates a left eye image and a right eye image corresponding to a size of a screen (1920 * 1080) using the format of the 3D image input to the image receiving unit 210, respectively.

That is, when the 3D image format is a format according to the top-bottom, side-by-side, horizontal interleave, vertical interleave, or checkerboard, the image processing unit 220 generates a left- And extracts the left and right eye images, respectively, and enlarges or scales or interpolates the extracted left and right eye images to generate a left eye image and a right eye image for providing to the user, respectively.

If the 3D image format is a general frame sequence scheme, the image processing unit 220 prepares to extract the left eye image or the right eye image from each frame and provide it to the user.

On the other hand, information on the format of the input 3D image may or may not be included in the 3D image signal.

For example, when information on the format of the input 3D image is included in the 3D image signal, the image processing unit 220 extracts information on the format by analyzing the 3D image, And processes the image. On the other hand, when the information on the format of the input 3D image is not included in the 3D image signal, the image processing unit 220 processes the received 3D image according to the format input from the user, And processes the image.

In addition, the image processing unit 220 allows the GUI received from the GUI generating unit 250 to be described later to be added to the left eye image, the right eye image, or both.

The image processing unit 220 time-divides the extracted left eye image and right eye image and transmits them to the image output unit 230 in an alternate manner. That is, the image processing unit 220 generates the left eye image L1, the right eye image R1, the left eye image L2, the right eye image R2, And transmits the left eye image and the right eye image to the image output unit 230 in a temporal order.

The image output unit 230 alternately outputs the left eye image and the right eye image, which are output from the image processing unit 220, to the user.

The GUI generation unit 250 generates a GUI to be displayed on the display. The GUI generated by the GUI generating unit 250 is applied to the image processing unit 220 and added to both the left eye image, the right eye image, or both to be displayed on the display.

The storage unit 260 is a storage medium storing various programs necessary for operating the TV 200, and may be implemented as a memory, a hard disk drive (HDD), or the like.

The user command receiving unit 270 transmits a user command received from an input means such as a remote controller to the control unit 240.

The IR transmitting unit 280 generates a synchronizing signal synchronized with the alternately output left and right eye images, and transmits the generated synchronizing signal to the shutter glass 300 in an infrared form. This is because the shutter glass 300 is alternately opened and closed through synchronization between the TV 200 and the shutter glass 300 so that the left eye image is displayed on the image output unit 230 at the left eye open timing of the shutter glass 300 And the right eye image is displayed on the image output 230 at the right eye opening timing of the shutter glass 300. [

The control unit 240 controls the overall operation of the TV 200 according to a user command received from the user command receiving unit 270.

In particular, the control unit 240 controls the image receiving unit 210 and the image processing unit 220 to receive a 3D image, separate the received 3D image into a left eye image and a right eye image, To be scaled or interpolated to a size that can be displayed on one screen.

The control unit 240 controls the GUI generating unit 250 to generate a GUI corresponding to the user command received from the user command receiving unit 270 and controls the IR transmitting unit 280 to generate a left eye image and a left eye image, So that a synchronization signal synchronized with the output timing of the right eye image is generated and transmitted.

On the other hand, the shutter glass 300 alternately opens and closes the left eye glass and the right eye glass in accordance with the synchronization signal received from the TV 200, so that the user can view the left eye image and the right eye image through the left and right eyes, respectively. Hereinafter, a specific configuration of the shutter glass 300 will be described with reference to FIG.

4 is a block diagram of a shutter glass 300 according to an embodiment of the present invention. The shutter glass 300 includes an IR receiving unit 310, a control unit 320, a glass driving unit 330, and a glass unit 340.

The IR receiving unit 310 receives the synchronization signal for the 3D image from the IR transmitting unit 280 of the TV 200 connected by wire or wirelessly. In particular, the IR transmitting unit 280 emits a synchronizing signal using infrared rays having a directivity, and the IR receiving unit 310 receives a synchronizing signal from the emitted infrared rays.

For example, the synchronization signal transmitted from the IR transmitter 280 to the IR receiver 310 may be a signal that is alternated between a high level and a low level at a predetermined time interval, The left eye image is transmitted in the time, and the right eye image is transmitted in the low level time.

The IR receiving unit 310 transmits the synchronizing signal received from the IR transmitting unit 280 to the control unit 320.

The control unit 320 controls operations of the shutter glass 300. In particular, the control unit 320 generates a control signal based on the synchronization signal received by the IR receiving unit 310, and transmits the generated control signal to the glass driving unit 330 to control the glass driving unit 330. In particular, the control unit 320 controls the glass driving unit 330 so that a driving signal for driving the glass unit 340 is generated in the glass driving unit 330, based on the synchronization signal.

The glass driving unit 330 generates a driving signal based on the control signal received from the control unit 320. [ In particular, since the glass portion 340 to be described later is constituted by the left eye glass 350 and the right eye glass 360, the glass driver 330 drives the left eye driving signal for driving the left eye glass 350 and the left eye driving signal for driving the right eye glass 360 And transmits the generated left-eye driving signal to the left-eye glass 350 and transmits the right-eye driving signal to the right-eye glass 360.

The glass part 340 is constituted by a left eye glass 350 and a right eye glass 360 as described above and opens and closes each glass in accordance with a driving signal received from the glass driving part 330.

≪ Processing process for 3D image >

Hereinafter, a processing procedure for the 3D image will be described with reference to FIGS. 5A to 6. 5A to 5C, a process of generating a left eye image and a right eye image by processing a 3D image according to a 3D image format will be described. Referring to FIG. 6, when the order of time division output is changed Will be described.

5A to 5C are views for explaining a processing method according to the format of a 3D image. 5A shows a method of displaying a 3D image on a screen when a 3D image is received according to a general frame sequence method.

As shown, the format of the 3D image according to the frame sequence scheme is a format in which one left eye image or one right eye image is inserted in one frame. Accordingly, the 3D image includes a frame including the left eye image L1 captured by the left eye camera, a frame including the right eye image R1 captured by the right eye camera, and a left eye image L2 captured by the left eye camera Frame -> frame containing right eye image R2 taken by right eye camera -> ... ', And they are displayed on the screen in the inputted order.

5B shows a method of displaying a 3D image on a screen when the 3D image is received according to the side by side method.

As shown, the format of the 3D image according to the side-by-side scheme is a format including both the left eye image and the right eye image in one frame. Particularly, in the 3D image format according to the side-by-side method, the left eye image and the right eye image are divided into right and left, the left eye image is provided on the left side, and the right eye image is provided on the right side.

In this format, the TV 200 separates each frame of the received 3D image into left eye image parts and right eye image parts by bisecting the left and right frames, and separates the left eye image part and the right eye image part by two Scaled to generate a left eye image and a right eye image to be displayed on the screen, and the generated left eye image and right eye image are alternately displayed on the screen.

Accordingly, the 3D image is divided into two parts: a left eye image in which the left part L1 of the image included in the first frame is doubled, a right eye image in which the right part R1 is doubled in the first frame, > Left eye image which is enlarged twice the left part (L2) of the image included in the second frame -> Right eye image which is twice enlarged the right part (R2) of the image included in the second frame -> ... 'Will be displayed on the screen.

Although the process of processing the 3D image format according to the side-by-side method has been described above, it is needless to say that the process of formatting the 3D image according to the top-bottom method can also be deduced therefrom. That is, in the case of the 3D image format according to the top-bottom system, the TV 200 divides each frame of the received 3D image into upper and lower halves to divide them into a left eye image part and a right eye image part, And the left eye image and the right eye image to be displayed on the screen, and displays the generated left and right eye images alternately on the screen.

FIG. 5C shows a method of displaying a 3D image on a screen when the 3D image is received by the horizontal interleaving method.

As shown, the format of the 3D image according to the horizontal interleave method is a format including both the left eye image and the right eye image in one frame. In particular, the format of the 3D image according to the horizontal interleave method is a format in which the left eye image and the right eye image are alternately arranged in a row unit.

In this format, the TV 200 separates each frame of the received 3D image into a left eye image part and a right eye image part by dividing each frame by an odd row and an even row, and separates the left eye image part and the right eye image part from each other To generate a left eye image and a right eye image, and displays the generated left eye image and right eye image alternately on the screen.

Accordingly, the 3D image is divided into the right-side part (R1-R1) of the images included in the first frame, the left-eye image obtained by enlarging the odd row parts (L1-1, L1-2) of the images included in the first frame, (Left) -> second frame obtained by enlarging the left portions L2-1 and L2-2 of the images included in the second frame by two times, respectively, Right-eye images with twice the right part of the included images (R2-1, R2-2) -> ... 'Will be displayed on the screen.

Of course, with respect to the format of the 3D image according to the horizontal interleave method, the left-eye image is generated by interpolating the even-numbered row portion using the odd-numbered row portion of the image included in one frame without using the enlargement scaling method described above, The right eye image may be generated by interpolating the odd row portion using the row portion.

In addition, it is also possible to implement a method of generating a left eye image by outputting an image for only odd rows and outputting an image for only even rows without using an enlargement scaling method or an interpolation method to generate a right eye image.

Although the process of processing the format of the 3D image according to the horizontal interleaving method has been described above as an example, the process of processing the format of the 3D image according to the vertical interleave method or the checkerboard method can also be deduced from the above .

That is, with respect to the format of the 3D image according to the vertical interleave method, the 3D image can be provided to the user by generating the left eye image and the right eye image by applying scaling or interpolation according to the column, not by line scaling or interpolation.

In addition, for the 3D image format according to the checkerboard method, pixel-by-pixel scaling or interpolation or pixel-by-pixel scaling or interpolation may be used.

6 is a view showing a state in which the left eye image and the right eye image are alternately output by time division. In FIG. 6, it is assumed that a 3D image of a format according to the side-by-side scheme is received for convenience of explanation.

As described above, the TV 200 processes a 3D image transmitted in a format according to the side-by-side scheme to generate a left eye image and a right eye image, and the generated left eye image and right eye image are time- Output.

On the other hand, the output 3D image may be in the order of the left eye image -> right eye image, or may be in the order of the right eye image -> the left eye image. Reasons for changing the order include problems in 3D image production, image processing problems in 3D images, and problems caused by user settings.

For reasons other than the above problems, the 3D image may be displayed in the order of the left eye image -> right eye image, or may be displayed in the order of the right eye image -> the left eye image. According to an embodiment of the present invention, , The 3D image displayed in the order of the left eye image -> the right eye image, and the 3D image displayed in the order of the right eye image -> the left eye image can be simultaneously viewed and compared.

That is, when a command for changing the output order of the 3D image is input from the user, as shown in the figure, the TV 200 separates the left eye image and the right eye image from the received 3D image and scales them, -> right eye images, and the other set is arranged in the order of right eye image -> left eye image.

Thereafter, the TV 200 synchronizes with the left eye glass 350 and the right eye glass 360, generates two sets of images, and simultaneously outputs half of each set to the screen. That is, one screen is displayed in the order of the left eye image - > the right eye image, and the other screen is displayed in the order of the right eye image -> the left eye image.

<Screen composition>

Hereinafter, a method of displaying screens together when the order is changed will be described with reference to FIGS. 7 to 9. FIG.

7 is a diagram illustrating a screen configuration according to an embodiment of the present invention. As shown, the TV 200 constitutes one 3D image set for outputting in order of the left eye image and the right eye image. In this configuration, L1 -> R1 -> L2 -> R2 -> ... The 3D image is displayed in this order. In addition, the TV 200 constitutes another 3D image set for outputting in the order of the right eye image -> the left eye image. In this configuration, R1 -> L1 -> R2 -> L2 -> ... The 3D image is displayed in this order.

L1 -> R1 -> L2 -> R2 -> ... The image of the left part of the 3D image in the order of A is called A and the image of the right part is B, the TV 200 extracts the A image. Also, R1 -> L1 -> R2 -> L2 -> ... The image of the left part of the 3D image in the order of C is denoted by C, and the image of the right part is denoted by D, the TV 200 extracts the D image.

Thereafter, the TV 200 integrates the A image and the D image into one, and simultaneously outputs the A image and the D image on one screen. Of course, in order to synchronize with the shutter glass 300, at the timing when the left eye glass 350 is turned on, both the left eye image and the right eye glass should be outputted, and when the right eye glass 360 is turned on In the timing, the right eye image should be output in both the A image and the D image. For this purpose, the image A is L1 -> R1 -> L2 -> ... , And the D image is output in the order of L1 -> R2 -> L2 -> ... In this order.

Thus, the 3D image output in the order of the left eye image -> the right eye image and the 3D image output in the order of the right eye image -> the left eye image are provided to the user in one screen, so that the user can easily and easily .

On the other hand, a GUI may be added to each image to compare the two 3D images on one screen and select an image in the correct sequence from the two 3D images. For reference, FIG. 8 will be referred to.

8 is a diagram illustrating a screen configuration according to another embodiment of the present invention.

As described above, when the A image output in the order of the left eye image and the right eye image in one screen and the D image output in the order of the right eye image and the left eye image are simultaneously output, Is added to the GUI.

That is, as shown in the figure, a 'select' GUI for selecting an A image is outputted together with a part of the area corresponding to the A image, and a 'select' GUI for selecting a D image in a part of the area corresponding to the D image Are output together.

The user can select one of the two &quot; selection &quot; GUIs and watch 3D images output from the area where the selected GUI is located. That is, when the user selects the A image, the TV 200 outputs the A image on the left side of the screen and the B image on the right side of the screen in order to provide the user with a 3D image output in the order of the left eye image and the right eye image, And displays the outputted full image.

When the user selects the D image, the TV 200 outputs the D image on the right side of the screen and the C image on the left side of the screen in order to provide the user with the 3D image output in the order of the right eye image-> And displays the outputted full image.

On the other hand, when the user inputs a command for changing the output order of the 3D image, L1 -> R1 -> L2 -> ... And L1 -> R2 -> L2 -> ... May be displayed at the same time. However, it is needless to say that a paused screen may be displayed according to the setting of the user. For reference, FIG. 9 will be referred to.

9 is a diagram illustrating a screen configuration according to another embodiment of the present invention. As shown in the figure, when the user inputs a command to change the output order of the 3D image, the A image may be output to the left region of the screen and the D image may be output to the right region of the screen. However, When the stop command is input, a temporarily stopped image is output in the left area and the right area of the screen.

Particularly, the temporarily stopped image displayed in the left region of the screen is an image in which the left eye image and the right eye image at the time of inputting the pause command are displayed in the order of the left eye image and the right eye image. That is, as shown in the drawing, when a pause command is input, L1 -> R1 -> L1 -> R1 -> ... L1 and R1 are repeated in this order and a still image (E image) is output.

Also, the paused image displayed in the right area of the screen is an image in which the left eye image and the right eye image at the time of inputting the pause command are displayed in order of the right eye image -> the left eye image. That is, as shown in the drawing, when a pause command is input, L1 -> R2 -> L1 -> R2 -> ... L1 and R2 are repeated in this order and a still image (F image) is output.

Also in this case, a 'select' GUI is added to the E image and the F image, respectively, so that the user can select the image. That is, when the user selects the E image, the TV 200 outputs the A image on the left side of the screen and the B image on the right side of the screen in order to provide the user with a 3D image output in the order of the left eye image and the right eye image, And displays the outputted full image.

When the user selects the F image, the TV 200 outputs a D image on the right side of the screen and a C image on the left side of the screen in order to provide the user with a 3D image output in the order of the right eye image-> And displays the outputted full image.

&Lt; Operation flow of processing 3D image >

10 is a view for explaining a method of providing a 3D image according to an embodiment of the present invention.

As shown in the figure, the TV 200 alternately outputs the left eye image and the right eye image (S1010). When a change order is input from the user (S1020-Y), the order of the left eye image and the right eye image is changed (S1030), and generates a second screen in which the order of the left eye image and the right eye image is changed (S1040).

The TV 200 allows the left half of the first screen and the right half of the second screen to be displayed on one screen (S1050), and selects the first GUI for selecting the first screen and the second GUI for selecting the second screen 2 GUI are created and displayed on the first and second screens, respectively (S1060).

Then, when the first GUI is selected (S1070-Y), the TV 200 displays the entire first screen which is not divided into halves (S1090). When the second GUI is selected (S1080-Y) (S1100).

Thereby, it is possible to compare the images synchronized with the non-synchronized images on a single screen, so that the user can more easily know whether or not the synchronization is correct, and the user can directly select the synchronized image.

For convenience of description, a case has been described in which an image is received in a format according to a side by side method. However, this is merely an example for convenience of explanation, and even when an image is received in a format according to another scheme It is needless to say that the technical idea of the present invention can be applied as it is. For example, when the image is received in the format according to the top-bottom scheme, the left and right images can be extracted from the enlarged and scaled image by separating the images vertically and horizontally, and scaling the separated images vertically and horizontally.

For convenience of explanation, the 3D image in the order of the left eye image and the right eye image is outputted on the first screen and the 3D image in the order of the right eye image and the left eye image is outputted on the second screen However, the opposite case is also applicable, and the first screen and the second screen may be divided into upper and lower parts, not to the left and right.

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 exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.

FIG. 1 illustrates a 3D image providing system according to an embodiment of the present invention.

FIGS. 2A to 2F are views for explaining the format of a 3D image,

3 is a block diagram of a TV according to an embodiment of the present invention,

4 is a block diagram of a shutter glass according to an embodiment of the present invention,

5A to 5C are views for explaining a processing method according to the format of a 3D image,

6 is a diagram showing a state in which a left eye image and a right eye image are output in time division and alternately,

7 is a diagram illustrating a screen configuration according to an embodiment of the present invention.

8 is a diagram illustrating a screen configuration according to another embodiment of the present invention.

9 is a diagram illustrating a screen configuration according to another embodiment of the present invention,

10 is a view for explaining a method of providing a 3D image according to an embodiment of the present invention.

Claims (22)

1. A display device for displaying a 3D (3-Dimension) image, A user command receiving unit for receiving a user operation; Eye image and the right-eye image alternately, and when a predetermined command is inputted through the user command receiving unit, a first screen in which the output order of the left-eye image and the right-eye image is changed, And a second screen in which the output order is not changed are output together; And And a GUI generating unit for generating a first GUI for allowing the user to select the first screen and a second GUI for selecting the second screen, Wherein, The first GUI is output on the first screen, the second GUI is output on the second screen, and when the first GUI is selected, the output order of the left eye image and the right eye image is changed, And outputs the left eye image and the right eye image to the entire screen without changing the output order of the left eye image and the right eye image when the second GUI is selected. delete delete The method according to claim 1, Wherein the first screen and the second screen are divided into right and left or up and down, and are output together. 5. The method of claim 4, When the first screen and the second screen are divided into right and left, Wherein the first screen is a screen in which the output order is changed with respect to the left part of the left eye image and the left part of the right eye image and the second screen is a screen in which the output order is set to the right part of the left eye image and the right part of the right eye image And the display device is an unchanged screen. 5. The method of claim 4, When the first screen and the second screen are divided into upper and lower portions, Wherein the first screen is a screen in which an output order is changed with respect to an upper portion of the left eye image and an upper portion of the right eye image and the second screen is a screen in which an output order is set for a lower portion of the left eye image and a lower portion of the right eye image And the display device is an unchanged screen. The method according to claim 1, And an image processing unit for receiving one image frame composed of a plurality of fields and extracting the left eye image and the right eye image in each field, Wherein, And the left eye image and the right eye image extracted from each image frame are alternately outputted from the plurality of image frames. 8. The method of claim 7, Wherein, A first still image in which the output order of the left eye image and the right eye image is changed with respect to the current image frame and a second still image in which the output order of the left eye image and the right eye image with respect to the current image frame are not changed And two still images are output together. 8. The method of claim 7, Wherein, When the preset command is input, the output order of the first real-time image in which the output order of the left eye image and the right eye image is changed and the left eye image and the right eye image for the continuously received image frame, And outputs the changed second real-time image together. The method according to claim 1, Wherein the first screen and the second screen are screens in which one of the left eye image and the right eye image is displayed together at the same time point. The method according to claim 1, Wherein the predetermined command is a command input to the user command receiving unit via a key provided on the remote controller or a key provided on the display unit to change the order of the left eye image and the right eye image. A first output step of alternately outputting a left eye image and a right eye image; And And a second output step of outputting a first screen in which the output order of the left eye image and the right eye image is changed and a second screen in which the output order of the left eye image and the right eye image are not changed, Including, The second outputting step comprises: Outputting a first GUI (Graphic User Interface) for selecting the first screen to the first screen and outputting a second GUI for selecting the second screen to the second screen, Eye image and the right-eye image in a case where the first GUI is selected, and outputs the changed output order to the entire screen without changing the output order of the left-eye image and the right- (3-Dimension) image providing method according to the present invention. delete delete 13. The method of claim 12, Wherein the first screen and the second screen are divided into left and right or up and down, and are output together. 16. The method of claim 15, Wherein the first screen is a screen in which an output order is changed with respect to a left portion of the left eye image and a left portion of the right eye image when the first screen and the second screen are divided into right and left eyes, Wherein the output order is not changed for the right part of the image and the right part of the right eye image. 16. The method of claim 15, Wherein the first screen is a screen in which an output order is changed with respect to an upper portion of the left eye image and an upper portion of the right eye image when the first screen and the second screen are divided into upper and lower portions, And the output order of the lower part of the image and the lower part of the right eye image is not changed. 13. The method of claim 12, Receiving one image frame composed of a plurality of fields and extracting the left eye image and the right eye image in each field, Wherein the first output step receives the plurality of image frames and alternately outputs the left eye image and the right eye image extracted from each image frame. 19. The method of claim 18, The second outputting step comprises: A first still image in which the output order of the left eye image and the right eye image is changed with respect to the current image frame and a second still image in which the output order of the left eye image and the right eye image with respect to the current image frame are not changed And the two still images are output together. 19. The method of claim 18, The second outputting step comprises: When the preset command is input, the output order of the first real-time image in which the output order of the left eye image and the right eye image is changed and the left eye image and the right eye image for the continuously received image frame, And outputting the changed second real-time image together. 13. The method of claim 12, Wherein the first screen and the second screen are screens in which one of the left eye image and the right eye image is displayed together at the same time point. 13. The method of claim 12, Wherein the preset command is input through a key provided on a remote controller or a key provided in a 3D image providing device to change the order of the left eye image and the right eye image.

Images