KR100830441B1 - Method for displaying an image and apparatus for displaying an image - Google Patents

Abstract

A method and an apparatus for displaying an image are provided to display content images on a first area while displaying frame images on a second area and to activate areas corresponding to three-dimensional images so as to display the images realistically. An apparatus for displaying an image comprises a memory part(30), a display part(40), a barrier panel part(50), and a control part(20). The memory part stores frame and content images in first and second memory parts(30a,30b), respectively. The barrier panel part displays the images three-dimensionally. The control part displays the content images stored in the memory part on a first area of the display part, displays the frame images on a second area of the display part, and activates areas corresponding to three-dimensional images. At least one of the frame image and the content image is a three-dimensional image. An input part(10) outputs selection command to select the frame images.

Description

Method for displaying an image and apparatus for displaying an image}

1 is a view showing an embodiment of an image display apparatus according to the present invention

2 is a conceptual diagram in which a three-dimensional image on the screen is expressed according to an embodiment of the present invention

3 is a plan view of the drawing illustrated in FIG. 2;

4 is a flowchart illustrating an embodiment of an image display method according to the present invention.

5 is a flowchart illustrating another embodiment of an image display method according to the present invention.

6 is a flowchart illustrating still another embodiment of an image display method according to the present invention.

7A to 7D and 8A to 8D illustrate views of a screen according to an embodiment of the image display method according to the present invention.

<Explanation of symbols in the main part of the drawing>

10: input unit 20: control unit

30 memory unit 40 display unit

50: barrier panel

60: signal transmission and reception unit 70: first signal processing unit

80: signal receiver 90: second signal processor

100: image generation unit

The present invention relates to an image display method and an image display device.

Recently, with the appearance of a mobile terminal with a camera function, a mobile terminal imposing a function of decorating a picture taken by the camera of the mobile terminal on the screen of the mobile terminal has been released. This feature can be interesting to users of mobile terminals by placing a frame or background with a concept around the picture. Such a function is called a studio function, and the picture frame or background of the picture may be stored in the memory of the mobile terminal and then called. However, such a function may not only be of great interest to the user because the function is limited, such as it may be used only for still images, and may not make the picture itself stand out. In addition, the above-described function does not increase the realism of the photo itself or the frame or the background does not change, the user can easily lose interest. In addition, since a flat image is provided, there is a problem in that the user's eyes are not focused on an image such as a photo to be displayed.

SUMMARY OF THE INVENTION An object of the present invention is to provide an image display method and an image display device capable of highlighting an image to be displayed and focusing a user's gaze.

Another object of the present invention is to provide an image display method and an image display device capable of more realistically displaying an image.

In order to achieve the above object, the present invention provides a memory unit configured to store a frame image and a content image, a display unit configured to display an image, a barrier panel unit configured to display a three-dimensional image in three dimensions, and the memory unit. And a controller configured to display a stored content image in a first area of the display unit, display the frame image in a second area of the display unit, and activate a portion of the barrier panel unit corresponding to the 3D image. At least one of the frame image and the content image provides an image display device that is a three-dimensional image.

The image display device may further include an input unit configured to output a selection command for selecting the frame image. The 3D image may be an image obtained by synthesizing a pair of 2D images. The image display device may further include an image generator configured to generate at least one of the frame image and the content image. The memory unit may include a first memory unit configured to store the frame image and a first image unit configured to store the content image. It may include two memory units. The apparatus for displaying an image further includes a transceiver for transmitting and receiving at least one image of the frame image and the content image, and the controller is configured to encode and modulate the image to be transmitted or to demodulate and decode the image received by the transceiver. It may include a first signal processor. The image display device further includes a receiver configured to receive at least one image of the frame image and the content image, and the controller demodulates the received image and decodes the demodulated image. It may include.

The receiving unit may be an image received through any one of a data channel of a broadcast and an additional data channel of an audio channel. At least one of the frame image and the content image may be a moving image. The controller may change an activation area of the barrier panel according to a conversion period of an image according to the moving image.

In another aspect, the present invention provides a method for displaying an image by a device having a barrier panel, the method comprising: storing a frame image and a content image, and displaying the frame image in a first area, wherein the content image is in a second area. And displaying at least one of the frame image and the content image, wherein the at least one of the frame image and the content image is a 3D image, and activates the barrier panel in a region corresponding to a region where the 3D image is displayed.

The image display method may further include receiving a selection command for selecting the frame image. At least one of the frame image and the content image may be a moving image.

Hereinafter, with reference to the accompanying drawings, an embodiment of the present invention that can specifically implement the present invention will be described. Hereinafter, in order to easily explain the present invention, a main image to be displayed by the user is a content image, and a frame image that makes the content image stand out around the content image or focuses the gaze of the content image. Call it an image. In the following description, a three-dimensional image is an image expressed as a stereoscopic image using a binocular parallax of human vision by synthesizing a pair of two-dimensional images, or a multi-view by synthesizing one or more two-dimensional images. Means an image that is expressed in three dimensions.

1 is a view showing an embodiment of an image display apparatus according to the present invention. An embodiment of an image display apparatus according to the present invention will be described with reference to FIG. 1. An embodiment of the image display device according to the present invention includes an input unit 10, a control unit 20, a memory unit 30, a display unit 40, and a barrier panel 50.

The input unit 10 receives a selection command for selecting a frame image from the user. The memory unit 30 may store the frame image and the content image. The frame image and the content image may be stored as a 3D image. Three-dimensional images are disclosed in detail in FIGS. 2 and 3. If the frame image is a 2D image, the content image may be a 3D image. On the other hand, when the frame image is a three-dimensional image, the content image may be a two-dimensional image. Accordingly, the three-dimensional image formed by the two-dimensional image and the pair of images can be displayed on one screen, wherein one of the two-dimensional image and the three-dimensional image is a frame image, and the other one is a content image. Can be

The memory unit 30 may include a first memory unit 30a and a second memory unit 30b for separately storing the two-dimensional image and the pair of images, respectively.

The controller 20 outputs a control command to output a 2D image and a 3D image. When the 3D image is displayed, the controller 20 may synthesize a pair of images forming the 3D image into a single image. When the control unit 30 synthesizes the 3D image, the pair of images is interpolated in units of pixels at the positions of the corresponding pixels, or each pair of images among the image values of the pixels included in the pair of images is interpolated. One image pixel value may be alternately selected from one another to form one image.

The display 40 may display the frame image and the content image on one screen according to a control command of the controller 20. That is, the display 40 may output the 2D image and the 3D image together on the screen. Hereinafter, for convenience, an area in which the content image is displayed in the display unit 40 is referred to as a first area, and an area in which the frame image is displayed is referred to as a second area.

The control unit 20 determines an on-screen display area of the composite image to be a three-dimensional image so that the display unit 40 can display the frame image and the content image on one screen, and the display unit 40 displays three out of three areas of the display unit 40. The location information of the screen area where the dimensional image is displayed may be output.

The barrier panel 50 receives the position information output by the controller 20 and activates the barrier corresponding to the screen area of the display unit 40 corresponding to the position fixation. When the barrier is activated, the incident time reaching from the eyes of the user is separated, and the incident time of the separated eyes reaches the synthesized image. In this case, the composite image of the barrier-activated screen region appears as a 3D image. In addition, the two-dimensional image displayed by the display unit 40 in the region where the barrier is not activated is displayed as a two-dimensional image. The user can view the 3D image through the barrier panel activated only in the screen area displaying the synthesized image as described above. This method includes a stereoscopic image display method, and a detailed example of displaying a 3D image will be described with reference to FIGS. 2 to 3.

In the embodiment of the present invention, when the user selects the 2D image as the frame image, the 2D image may be expressed as the frame image, and the 3D image may be expressed as the content image. When the user selects the 3D image as the frame image, the 3D image may be expressed as the frame image and the 2D image may be expressed as the content image.

An embodiment of the image display device according to the present invention may further include a transceiver 60 capable of mobile communication and a first signal processor 70 for communication signal processing. The transceiver 60 receives a communication signal according to a communication protocol and outputs the communication signal to the first signal processor 70 or the first signal processor 70. The first signal processing unit 70 may further include a demodulation unit for modulating a transmission signal or demodulating a reception signal, and a decoding unit for decoding and outputting a signal to be demodulated or transmitted to the modulation and demodulation unit. have. An embodiment of the image display apparatus according to the present invention may receive an image using a communication protocol through a transceiver and a first signal processor, or may transmit and receive an image stored in the memory unit 30. In particular, the frame image selectable by the user may be received in advance from the transceiver 60 and the first signal processor 70 and stored in the memory unit 30.

Meanwhile, an embodiment of the image display device according to the present invention may further include a receiver 80 capable of receiving a broadcast and a second signal processor 90 for processing a broadcast signal.

The receiver 80 may receive a broadcast signal according to a broadcast protocol and output the broadcast signal to the second signal processor 90. The second signal processor 90 may further include a demodulator for demodulating a broadcast signal and a decoder for decoding a signal demodulated by the demodulator. An embodiment of the image display device according to the present invention may receive an image transmitted according to a broadcast protocol through the receiver 80 and the second signal processor 90. Therefore, the frame image may be received through an additional channel among channels through which a data signal of a broadcast protocol is transmitted or channels through which a video signal is transmitted, and may be stored in advance in the memory unit 30. Thus, for example, the frame image may be received through a broadcast signal in a format such as BIFS (Binary Format for Scenes) or a still picture format. The received image replaces the frame image stored in the memory unit 30 so that the frame image stored in the memory unit 30 may be updated.

The frame image stored in the memory unit 30 may be a still image or a moving video form. For example, when the frame image is an image of a 2D video, the boundary between the frame image and the content image displayed in the display 40 may be changed according to the display period of each frame image included in the video. The controller 20 may transmit the position information of the screen area where the 3D image is displayed to the barrier panel 50 according to the conversion period of each frame image included in the video. The barrier panel 50 may receive position information corresponding to an image conversion period displayed on the display unit 40 according to the image conversion period, and may be activated in an area in which a 3D image is displayed at each reception moment.

When the frame image is displayed on the display unit 40, the frame image size displayed may be adjusted by a user. The size of the content image may be adjusted according to the size of the frame image. In this case, the controller 40 transmits the position information of the screen area where the 3D image is displayed to the barrier panel 50 to transmit the 2D image and the 3D. You can make sure the boundaries of the image look clear.

An embodiment of the image display device according to the present invention may further include a camera module as the image generating unit 100 for generating an image. The image photographed by the camera module may be stored in the memory unit 30, and the stored image may be used as a content image. Therefore, when a frame image is used as the 3D image, the 2D image generated from the camera module may be displayed together with the frame image.

The camera module of the embodiment of the image display device according to the present invention may be a stereo camera module. In the case of a stereo camera module, the camera module may include two or more imaging devices that may correspond to both eyes. Two or more imaging elements are arranged spaced apart from each other, and when taking pictures with two or more imaging elements, two or more images generated from each imaging element may be a pair of images capable of forming a three-dimensional image. have.

Hereinafter, an embodiment in which the display unit and the barrier panel display a 3D image among the embodiments of FIG. 1 will be described. In order to easily explain the present invention, the three-dimensional image is first described. Here, the 3D image generically refers to an image that appears three-dimensionally. In addition, in the following description, it means an image that is expressed to the user. For example, if the text is displayed, the image may be displayed to the user, so that the image is included in the image mentioned herein. That is, the image refers to an image that the user can recognize from the screen.

Combining two two-dimensional images can be expressed as a three-dimensional image. If the left and right eyes of a person see one image, each eye sees a slightly different image. In other words, the image seen by the right eye and the image seen by the left eye are different from each other by the distance difference between the two eyes. Here, the three-dimensional image, if one image of the left and right eyes of the human eyes respectively display two images seen in the left and right directions, while giving binocular disparity (兩眼 視差) to visually synthesize the two images It means the image that appears. The binocular parallax represents the difference between the right eye and the left eye's view of objects. Hereinafter, an image viewed by the left eye (hereinafter referred to as a left image) among the images forming the 3D image is represented by an L index, and an image viewed by the right eye (hereinafter referred to as a right image) is represented by an R index.

FIG. 2 is a conceptual diagram illustrating a three-dimensional image displayed on a screen to explain an example of viewing a three-dimensional image as two two-dimensional images displayed through a screen. Referring to Figure 1 describes the principle of presenting the image as follows.

Barrier panels are located on the screen to display three-dimensional images. The barrier panel may separate the incident time point and generate binocular disparity accordingly, so that the image displayed on the screen may be viewed as a three-dimensional image. After synthesizing the image (R) seen by the right eye and the image (L) seen by the left eye, the synthesized image may be viewed as a three-dimensional image.

In one image, the image of the right eye and the image of the left eye are prepared, and the left image L and the right image R are synthesized in units of pixels and displayed on the screen. The barrier panel may separate the incident time so that the time coming from the right eye is a pixel by the right image, and the time coming from the left eye is a pixel by the left image so that binocular disparity may occur. Therefore, when a person perceives an image synthesized in units of pixels through the barrier panel, the image may be viewed as a 3D image. A method of synthesizing two images on a pixel-by-pixel basis may use an interpolation method for pixels, but there may be various methods depending on how the image is formed.

In FIG. 2, b denotes a barrier interval of the barrier panel, g denotes a gap between the barrier panel and the screen, and z denotes a distance from the position seen by a person.

As shown in FIG. 2, when the right image R and the left image L are disposed in pixel units, the barrier panel includes pixels included in the right image R at the right eye's time, and the left eye's time at the left. The pixel R included in the image may be activated to correspond to each other. In particular, the barrier panel may generate binocular disparity by activating only the portion of the screen where the 3D image is located. Since the barrier panel is not activated, the part where the 2D image is displayed on the screen is transmitted to the eyes of the viewer as it is.

When displaying both the 2D image and the 3D image on the screen, the barrier panel may be activated only in the area according to the positional information about the 3D image. Here, the activation means that the barrier panel is in a state in which the incident time can be separated to generate binocular disparity.

That is, when the controller transmits position information of the composite image region for the 3D image to the barrier panel, the barrier panel may activate a barrier corresponding to each 3D image from the position information of the 3D image. In contrast, the portion of the barrier panel corresponding to the two-dimensional image is not activated. Therefore, the 2D image and the 3D image can be simultaneously displayed.

3 is a plan view of the drawing illustrated in FIG. 2. The diagonally-marked portion of the pixels on the screen indicates pixels obtained from the right image, and the portions indicated by dashed lines represent pixels obtained from the left image. The image displayed on the screen is composed of the right image and the left image by pixel unit. In Figure 2 it is described that the incident time is separated to facilitate the understanding of the present invention. Meaning that the barrier panel is driven to separate the incident time means that an image region formed by the pixels belonging to the right image (shown by a diagonal line) and an image region formed by the pixels belonging to the left image (shown by a dotted line) (b) means that the human eyes accept different images. Therefore, by synthesizing two different images received from two eyes by a human brain, the image displayed on the screen can be recognized as a three-dimensional image.

In the above, a method of forming an image recognized as a 3D image using two images for binocular disparity has been described, but a method of expressing a 3D image by synthesizing two or more images according to multiple viewpoints Similar to that described above, this approach is also applicable to embodiments of the present invention.

According to the present invention, the 3D image and the 2D image can be displayed together on the screen, and only a portion of the screen where the 3D image is located can be activated to enable the user to view both images simultaneously by activating a barrier panel for the 3D image. have. On the contrary, when the barrier panel is activated on the entire screen to display the 3D image, the barrier panel is deactivated only in the portion where the 2D image is located so that the 3D image is visible only where the 3D image is located and the plane image is positioned. The place can make the two-dimensional image visible. As illustrated in FIG. 2, the barrier panel may be activated in correspondence to pixels of an image displayed on a display unit such as a thin film transistor (liquid crystal display). Then, only a part of the barrier panel may be activated or deactivated by using position information corresponding to each pixel of the display apparatus displaying the 3D image. Therefore, the barrier panel is activated by synchronizing the pixels where the 3D image is located and the corresponding portions of the barrier panel of the display device with each other in synchronization with each other. It can be seen as a three-dimensional image. Therefore, the line of sight of the portion where the three-dimensional image is located can be focused, and the three-dimensional image can be seen more vividly than the two-dimensional image. In addition, when the frame image is a two-dimensional image, the three-dimensional image based on the two-dimensional image may focus the user's gaze and express the image realistically. And, if the frame image is a three-dimensional image, the two-dimensional image with the three-dimensional image as a background can convey the user's interest to the user, as if viewing the two-dimensional image from the background of the three-dimensional real world. May cause

4 is a view showing an embodiment of an image display method according to the present invention. An embodiment of an image display method according to the present invention will be described with reference to FIG. 4. 4 illustrates a case where a two-dimensional image is used as a frame image and a three-dimensional image is expressed as a content image as an example.

First, the frame image and the content image are stored (S1). At least one of the frame image and the content image may be a 3D image. Alternatively, at least one of the frame image and the content image may be a moving image.

The frame image and the content image may be received from a broadcast channel or generated by the display device.

The frame image is displayed in the first area, the content image is displayed in the second area (S2), and in this case, the barrier panel is activated in the area corresponding to the area where the 3D image is displayed.

5 is a view showing another embodiment of an image display method according to the present invention. An embodiment of an image display method according to the present invention will be described with reference to FIG. 5. 5 illustrates a case where a 2D image is selected as a frame image and a 3D image is expressed as a content image, and a user selects the frame image as an example.

According to an embodiment of the present invention, when an image is displayed on the screen, the user receives a selection command for selecting a two-dimensional image that is a frame image of the image to be displayed (S10). The two-dimensional image may be an image already stored.

In operation S20, two or more images forming a 3D image, which is a content image, are synthesized.

The barrier panel is activated in the first region displaying the 3D image to express the 3D image, and the 2D image is displayed in the second region instead of the first region (S30). That is, a screen area for displaying the synthesized image is determined to activate a barrier panel at a position corresponding to the determined screen area among the barrier panels, the synthesized image is displayed in the determined screen area, and the screen area is displayed in the remaining screen area. Display a two-dimensional image.

Therefore, the two-dimensional frame image selected by the user and the three-dimensional image to be displayed can be displayed on one screen, and the three-dimensional image can enhance the realism and focus the user's gaze.

7 is a flowchart illustrating another embodiment of an image display method according to the present invention. Referring to Figure 7 another embodiment of the image display method according to the present invention will be described. 5 illustrates an example in which the frame image is a 3D image and the content image is a 2D image.

The user receives a selection command for selecting a 3D image to be a frame image of the image to be displayed (S110). Two or more two-dimensional images forming the three-dimensional image may be already stored image.

Then, a pair or two or more images capable of expressing the 3D image are synthesized (S120).

The 3D image is displayed in the first area activated by activating the barrier panel in the screen area displaying the 3D image, and the 2D image is displayed in the second area instead of the first area (S130). That is, the barrier panel at a position corresponding to the determined screen area of the barrier panel is activated, the synthesized image is displayed on the determined screen area, and the two-dimensional image is displayed on the remaining screen area. According to the embodiment of FIG. 5, a two-dimensional image may be viewed together with a frame image which is a three-dimensional image.

7A-7D and 8A-8D illustrate views of a screen according to an embodiment of an image presentation method according to the present invention. 7A to 7D and 8A to 8D, the content image is an image of a car passing in front of a mountain, and the frame image is an image including circles, rhombuses, sun and moon shapes around the screen of the content image. As described above, the frame image may be called from the stored image and placed on the screen to make the content image stand out. The content image is displayed by placing an image received, stored, or generated separately from the frame image on the screen.

According to an exemplary embodiment of the present invention, any one of the images of FIGS. 7A to 7D and 8A to 8D may be expressed as a two-dimensional image, and the other image may be expressed as a three-dimensional image. 7A to 7D and 8A to 8D, the principle of expressing the 3D image is the same as described with reference to FIGS. 2 and 3.

If the content image is a 3D image and the frame image is a 2D image, the example of FIGS. 7A to 7D indicates that the 3D video image may be displayed with a 2D still image image as a background. Therefore, since the 3D video image delivers a sense of image like the real world, a more realistic image can be delivered to the user.

On the other hand, when the content image is a two-dimensional image and the frame image is a three-dimensional image, the example of FIGS. 7A to 7D indicates that the two-dimensional video image may be displayed with a three-dimensional still image image as a background. In this case, since the 3D still image image delivers a realistic image, FIGS. 7A to 7D may convey a feeling of viewing the 2D image to a user through a frame existing in the real world.

8A to 8D illustrate an example in which the content image is a still image and the frame image is a moving image. 8A to 8D, the content image is an image of a car in front of a mountain, and the frame image represents an image in which circles, rhombuses, sun, and moon shapes continuously move around the content image around the screen of the content image.

8A to 8D, when the content image is a 2D image and the frame image is a 3D video image, FIGS. 8A to 8D may display the 2D content image as a background on which a 3D screen is moved. 8A to 8D, when the content image is a 3D image and the frame image is a 2D image, a 3D still image may be displayed with a 2D video image as a background.

As shown in FIGS. 7A to 8D, the boundary between the content image and the frame image may vary depending on the type of the frame image or whether the frame image is a video. Therefore, when the barrier panel is activated to determine the display area of the 3D image, the 3D image display area is determined according to the image display period, so that the barrier is 3D even if any one of the 3D image and the 2D image is a video image. It can only be activated in the image area.

When the content image and the frame image are received, the two images may be received from different channels. For example, when the frame image and the content image are received from the broadcast channel, the frame image may be received from a data channel of the broadcast channel, and the content image may be received from the main channel of the broadcast channel.

According to an embodiment of the present invention, when the frame image is a two-dimensional image and the content image is a three-dimensional image, the three-dimensional image in the frame image can focus the user's gaze and increase the realism of the image. If the frame image is a three-dimensional image and the content image is a two-dimensional image, the two-dimensional image in the three-dimensional background appears to be expressed in a two-dimensional image in the screen region of the real world, and thus may cause user interest.

The effects of the image display method and the image display apparatus according to the present invention described above are as follows.

According to the image display method and the image display device according to the present invention it is possible to highlight the image to be displayed, and to focus the eyes of the user. In addition, according to the image display method and the image display device according to the present invention can display the image more realistically.

Claims (14)

A memory unit configured to store a frame image and a content image; A display unit configured to display an image; A barrier panel unit configured to display three-dimensional images three-dimensionally; And A control unit configured to display a content image stored in the memory unit in a first region of the display unit, display the frame image in a second region of the display unit, and activate a portion of the barrier panel unit corresponding to the 3D image; Including, And at least one of the frame image and the content image is a three-dimensional image. The method of claim 1, The image display device further comprises an input unit for outputting a selection command for selecting the frame image. The method of claim 1, The 3D image is an image display device that is an image obtained by synthesizing two or more two-dimensional images. The method of claim 1, The image display device further comprises an image generator for generating at least one image of the frame image and the content image. The method of claim 1, The memory unit includes a first memory unit for storing the frame image and a second memory unit for storing the content image. The method of claim 1, The apparatus for displaying an image further includes a transceiver for transmitting and receiving at least one image of the frame image and the content image, and the controller is configured to encode and modulate the image to be transmitted or to demodulate and decode the image received by the transceiver. An image display device comprising a first signal processor. The method of claim 1, The image display device further includes a receiver configured to receive at least one of the frame image and the content image, and the controller includes a second signal processor to demodulate the received image and to decode the demodulated image. Image display device. The method of claim 7, wherein And the receiving unit receives the received image from one of a data channel of a broadcast data channel and an additional data channel of an audio channel. The method of claim 7, wherein And the receiving unit receives the content image from a main channel of a broadcast and receives the frame image from a data channel of a broadcast. The method of claim 1, And at least one of the frame image and the content image is a moving image. The method of claim 10, The control unit is an image display device for changing the activation area of the barrier panel according to the change of the image according to the video. In a device having a barrier panel to display an image, A storage step of storing the frame image and the content image; And A display step of displaying the frame image in a first area, and displaying the content image in a second area, And at least one of the frame image and the content image is a 3D image, and activates the barrier panel in a region corresponding to a region where the 3D image is displayed. The method of claim 12, The image display method further comprises the step of receiving a selection command for selecting the frame image between the storage step and the display step. The method of claim 12, And at least one of the frame image and the content image is a moving image.

Images