Cube-type display and method for providing anamorphic content using same

Abstract

Provided is a method for displaying 3D content on a cube-type display including first to third display surfaces coupled perpendicularly to each other. This method comprises: a step of configuring a cube display in a 3D program, the step comprising a step of producing the shape of a cube display to be installed on site in a 3D program and then installing a camera in consideration of the viewpoint position, viewpoint, and angle of the actual site of installation; a step of configuring an output surface of cube content in the 3D program, the cube display comprising a left surface, a right surface, and a lower surface; a step of configuring the final format of the 3D content outputted on the 3D cube display; a step of producing 3D content to be outputted on the 3D cube display; a step of performing texture mapping of a 3D content source by projecting the 3D content onto the cube display in the 3D program; a step of changing the texture-mapped content according to the final output content format; and a step of transmitting the 3D content changed to the final output content format to the cube display.

Description

Cube-shaped display and method for providing anamorphic content using the same

[0001] The present invention relates to a cube-shaped display and a method for producing anamorphic content using the same, and more specifically, to a cube-shaped display that outputs 3D content using an optical illusion effect and a method for producing anamorphic content using the same.

[0002] Traditional content delivery methods typically involved offline distribution of advertisements through flyers or online distribution via the internet, TV, or radio. However, these traditional methods not only provided users with fixed information, but also hindered the rapid editing, modification, and updating of existing content due to the fact that the content's owner and creator were different. Consequently, digital signage has recently emerged as a method of providing content.

[0003]

[0004] However, in recent years, there has been an increasing trend of displaying 3D stereoscopic images on at least one display to provide more engaging content or to deliver content more efficiently. For example, in an outdoor space, a huge, realistic-looking wave is displayed as a 3D stereoscopic image (anamorphic) on an L-shaped display. Anamorphism is an artistic technique that expresses the illusion of three-dimensionality, in which the shape of an object appears different depending on the viewing angle. When viewed from a certain position, shapes and forms appear three-dimensional in space, but when the viewing position or line of sight is changed, the three-dimensional shapes and forms are destroyed or distorted. While this anamorphic technique offers the advantage of generating interest in 3D advertising, conventional methods, while appropriate for outdoor spaces, make it difficult to provide 3D content in indoor or narrow spaces. Furthermore, the structural characteristics of the L-shaped display limit the ability to provide more realistic 3D content by presenting 3D content on two sides.

[0005]

[0006] In addition, since conventional L-shaped displays are installed on existing walls, there is a disadvantage in that once installed indoors or outdoors, it is practically impossible to move the L-shaped display because it is dependent on the space in which it is installed.

[0007]

[0008] (Prior art literature)

[0009] (Patent Document)

[0010] Republic of Korea Patent No. 10-2497324 (Registration date: February 2, 2023)

[0011] The present invention is an invention devised based on the aforementioned problems, and aims to provide a cube-shaped display capable of displaying anamorphic content even in a narrow indoor space and providing more realistic anamorphic 3D content, and a method for producing anamorphic content using the same.

[0012] In order to solve the above-described problem, according to one aspect of the present invention, a method for displaying 3D content on a cube-shaped display including first to third display surfaces that are vertically coupled to each other is provided, the method comprising: a step of setting a cube display on a 3D program, a step of creating a shape of a cube display to be installed on site on a 3D program and then installing a camera in consideration of a viewpoint position, viewpoint, and angle of an actual installation site; a step of setting an output surface of the cube content on the 3D program, wherein the cube display includes a left side, a right side, and a lower side; a step of setting a final format of the 3D content to be output from the 3D cube display; a step of creating 3D content to be output from the 3D cube display; a step of projecting the 3D content onto the cube display on a 3D program to perform texture mapping of a 3D content source; a step of changing the texture-mapped content to match a final output content format; and a step of transmitting the 3D content changed to the final output content format to the cube display.

[0013]

[0014] In the aforementioned aspect, the step of setting the output faces of the cube content on the 3D program includes the step of setting at least three output faces that display the final content among the six total output faces of the cube display through UV mapping that unwraps the cube and changes the two-dimensional model into a three-dimensional model.

[0015]

[0016] Additionally, in any of the aforementioned aspects, the step of setting the output faces of the cube content on the 3D program includes the step of eliminating the remaining output faces except for the three selected output faces.

[0017]

[0018] Additionally, in any one of the aforementioned aspects, the step of setting the final format of the 3D content includes the step of arranging the output surfaces in a row in the order of the left side, the right side, and the lower side.

[0019] Additionally, in any of the aforementioned aspects, the step of setting the final format of the 3D content includes the step of setting the content output on the lower side to be rotated by -90 degrees or +90 degrees.

[0020] According to the present invention, a cube-shaped display capable of displaying anamorphic content even in an indoor space and a method for producing anamorphic content using the same can be provided.

[0021] FIG. 1 is a drawing showing an anamorphic display system according to one embodiment of the present invention;

[0022] FIG. 2 is a drawing showing an example of a cube display used in an anamorphic display system in an embodiment of the present invention;

[0023] FIG. 3 is an explanatory diagram for explaining a cube-shaped display having three display surfaces in an embodiment of the present invention;

[0024] FIG. 4 is a drawing for explaining the configuration of a cube display and installation space on a program in an embodiment of the present invention;

[0025] FIG. 5 is a drawing showing a final output cube display shown in a virtual viewpoint from a camera viewpoint where setting values ​​are input in an embodiment of the present invention;

[0026] FIG. 6 is a drawing for explaining an operation of setting an output surface of cube content in an embodiment of the present invention;

[0027] FIG. 7 is a drawing for explaining the format of the final output content in an embodiment of the present invention;

[0028] FIG. 8 is a drawing showing rotation settings in the final format of the final output content in an embodiment of the present invention;

[0029] FIG. 9 is a drawing showing an example of a UV mapping setting screen in an embodiment of the present invention.

[0030] FIG. 10 is a drawing showing an example of texture mapping source output when producing anamorphic content in an embodiment of the present invention;

[0031] FIG. 11 is a drawing showing the display of content within a cube area in an embodiment of the present invention;

[0032] FIG. 12 is a drawing for explaining a rendering process in an embodiment of the present invention;

[0033] FIG. 13 is a drawing for explaining content source texture mapping to a cube in an embodiment of the present invention;

[0034] FIG. 14 is a drawing exemplarily showing how to stretch and attach a rendering image to the vertices of a cube during texture mapping in an embodiment of the present invention;

[0035] FIG. 15 is a drawing showing a screen when a rendering image is projected onto a cube in an embodiment of the present invention;

[0036] FIG. 16 is a drawing showing a completed texture mapping image in accordance with a final output content format in an embodiment of the present invention;

[0037] FIG. 17 is a flowchart illustrating a method for transmitting anamorphic 3D content on a cube display according to an embodiment of the present invention;

[0038] Figure 18 is a drawing showing the operation of texture mapping by projecting content to be displayed on three sides of a cube;

[0039] FIG. 19 is a diagram illustrating an operation of changing texture mapped content to fit the final output content format;

[0040] Figure 20 is a drawing showing the final anamorphic 3D content to be output to the cube.

[0041] The advantages and features of the present invention, and the methods for achieving them, will become clearer with reference to the detailed embodiments described below, along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms.

[0042] The embodiments described herein are provided to ensure a complete disclosure of the present invention and to fully convey the scope of the invention to those skilled in the art. Furthermore, the present invention is defined solely by the scope of the claims. Accordingly, in some embodiments, well-known components, operations, and techniques are not specifically described to avoid ambiguity in the interpretation of the present invention.

[0043] Throughout the specification, the same reference numerals refer to the same elements. Furthermore, the terms used (or referred to) in this specification are for the purpose of describing embodiments and are not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise. Furthermore, the phrase "comprises (or comprises)" does not exclude the presence or addition of one or more other elements and operations.

[0044] Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used in their common sense to those of ordinary skill in the art to which the present invention pertains. Furthermore, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless otherwise defined.

[0045] Hereinafter, an embodiment of the present invention will be described with reference to the attached drawings.

[0046] FIG. 1 is a diagram illustrating an anamorphic display system (10) according to an embodiment. Referring to FIG. 1, the anamorphic display system (10) includes an anamorphic server (100), a user terminal (200), and a cube-shaped display (300). The operations described below may be implemented by a user accessing the anamorphic server (100) through the user terminal (200), creating anamorphic content through a platform (e.g., a web page and / or application) provided by the anamorphic server (100), and providing the content stored in the anamorphic server to the cube display (300), or anamorphic content created through the user terminal (200) may be provided to and displayed on the cube display.

[0047] The anamorphic server (100) can output an anamorphic stereoscopic image or a 3D stereoscopic image through a cube display (300), or can output an anamorphic stereoscopic image or a 3D stereoscopic image through a cube display (300) via a user terminal (200). The anamorphic server (100) can support the production of anamorphic content so that people viewing the display can view a 3D stereoscopic image using anamorphic illusion technology, and the produced anamorphic content can be stored in the server (100).

[0048] The user terminal (200) may be a communicable desktop computer, laptop computer, notebook, smart phone, tablet PC, mobile phone, smart watch, smart glass, e-book reader, portable multimedia player (PMP), portable game console, navigation device, digital camera, digital multimedia broadcasting (DMB) player, digital audio recorder, digital audio player, digital video recorder, digital video player, and PDA (Personal Digital Assistant).

[0049] The anamorphic server (100) and the user terminal (200) are each connected to a communication network and can transmit and receive data between each other through the communication network. For example, communication networks include Local Area Network (LAN), Metropolitan Area Network (MAN), Global System for Mobile Network (GSM), Enhanced Data GSM Environment (EDGE), High Speed ​​Downlink Packet Access (HSDPA), Wideband Code Division Multiple Access (W-CDMA), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Bluetooth, Zigbee, Wi-Fi, VoIP (Voice over Internet Protocol), LTE Advanced, IEEE802.16m, Wireless MAN-Advanced, HSPA+, 3GPP Long Term Evolution (LTE), Mobile WiMAX (IEEE 802.16e), UMB (formerly EV-DO Rev. C), Flash-OFDM, iBurst and MBWA (IEEE 802.20) systems, HIPERMAN, Beam-Division Multiple Access (BDMA), Wi-MAX (World Interoperability for Microwave Access), Various types of wired or wireless networks, such as 5G, may be used, and various other communication standards may also be used as long as they can support transmission or exchange of data or information between the anamorphic server (100), the user terminal (200), and the cube display (300).

[0050]

[0051] FIG. 2 (a) and (b) are drawings showing an example of a cube-shaped display (300) according to one embodiment of the present invention. As shown in FIG. 2, the cube-shaped display (300) includes at least three display surfaces (310a to 310c) and a support (320), and the at least three display surfaces (310a to 310c) are held on the support (320) by a support structure such as a support wire (330a) and a support frame (330b). The structure of the support wire (330a) and the support frame (330b) provides a visual effect as if the cube display (300), which is like a cube, is floating above the support.

[0052]

[0053] Specifically, the support frame (330b) is rotatably connected to the support frame (330b) by two through holes installed in the support (320), a rod passing through the through holes, and a body frame (340) connected to the rod, and the connecting rings (330c) installed at multiple locations of the body frame (340) and the connecting rings installed at multiple locations of the support frame (330d) are connected via wires, so that the angle at which at least three display surfaces (310a to 310c) are shown to the viewer can be freely adjusted.

[0054]

[0055] FIG. 3 is a diagram illustrating a cube-shaped display having three display surfaces as described above. As illustrated in FIG. 3, the first display surface (310a: A) to the third display surface (310c: C) are each formed in a square shape, and the first display surface (310a) and the second display surface (310b) are in contact with one side so that the two sides are at a 90-degree angle, and the third display surface (310c) is formed such that two of the four sides of the third display surface are in contact with one side of the first display surface (310a) and one side of the second display surface (310b) so that the third display surface is at a 90-degree angle with the first and second display surfaces, so that it has the shape of a cube when viewed from the front.

[0056]

[0057] The actual cube-shaped display (300) is provided with three display surfaces on a hexahedral body frame, but as shown in FIG. 2, when viewing the cube-shaped display (300) from the front, the viewer gets the effect of viewing a six-sided cube display.

[0058]

[0059] Next, the process of displaying anamorphic content on a cube display is described below. Figures 4 to 16 are reference diagrams explaining the process of displaying anamorphic content on a cube display.

[0060]

[0061] First, as illustrated in FIG. 4, the user connects to the anamorphic server (100) using a user terminal (200), downloads the 3D program provided by the server (100) to the user terminal (200), and executes the program. As illustrated in FIG. 4, the user creates the shape of the cube LED display to be finally installed and output on a dedicated 3D program, and then installs the camera by considering the viewpoint position, viewpoint, and angle of the actual installation site. Here, the viewpoint refers to the position where the content transmitted to the cube display is optimally displayed to the viewer in accordance with the production intention.

[0062]

[0063] Afterwards, as shown in Fig. 5, the final output cube LED display shown in the virtual viewpoint of the camera viewpoint where setting values ​​such as position, viewpoint, lens value, distance, and angle are input is determined.

[0064]

[0065] After the final output cube LED display is determined, in the subsequent step, as shown in (a) of FIG. 6, the user unwraps the cube display in the program to unfold each face of the cube in a developed form, and checks which of the six faces unfolded in a developed form is the display face on which the final content is to be displayed. In the embodiment of the present invention, since content is displayed using three display faces, three display faces (A, B, C) on which the final image is to be displayed are selected, and the remaining three display faces (D, E, F) are erased as shown in (b) of FIG. 6. Here, the term "unwrap" refers to an operation of unfolding an object so that a texture (material, texture, color) can be easily applied to the 3D object.

[0066]

[0067] After unwrapping and removing the three unnecessary display surfaces, only three display surfaces (A, B, C) remain, as shown in (a) of Fig. 7. In this state, when content is displayed on the cube display, it is as shown in (b) of Fig. 7. In the display area, a blank image (black image) with no information to be displayed is output. Therefore, in order to prevent such blank space from being created in the bounding box, the position of the C surface is forcibly moved in the present invention, and the display surfaces A, B, and C are set to a horizontally long form through the program as shown in (C) of Fig. 7 to specify the screen output form (screen output format) of the final content. Here, the bounding box represents a rectangular bounding box of the minimum range that surrounds each object, and means the entire rectangular or square screen frame of the content (anamorphic video) to be the final output.

[0068]

[0069] FIG. 8 is a diagram illustrating the settings of the third display surface arranged on the lower surface of a cube display. Unlike the first and second display surfaces, the third display surface (310c, C) arranged on the lower surface of the cube display is arranged on the lower surface of the cube display. This can prevent the output of a blank screen through the same process as FIG. 7, but since the display angles of the content displayed in FIG. 7 (a) and the content displayed in FIG. 7 (c) are different, this needs to be properly corrected. In the present invention, the output of the third display surface (310c, C) arranged on the lower surface is rotated, preferably by -90 degrees, to adjust the content displayed on the lower surface to have a normal display angle. That is, by rotating the display surface of the lower surface by -90 degrees in response to the settings to be output to the cube display in this way, the rightmost part corresponding to surface C among the divided contents is automatically displayed in a form rotated by -90 degrees. However, the present invention is not limited thereto, and may be displayed in a form rotated by 90 degrees depending on hardware settings or content settings.

[0070]

[0071] The final output screen will have a form of three squares of the same size placed side by side, and the UV mapping settings are also set to divide the content to be displayed on each of the three sides into three equal parts, as shown in Figure 9.

[0072]

[0073] Figure 10 is a diagram illustrating an example of anamorphic content creation and texture mapping source output. First, as illustrated in Figure 10, objects and components are placed and moved to create a three-dimensional effect based on the final cube LED display screen range that will actually be viewed on-site, thereby creating the final image or animation.

[0074]

[0075] As such, if the final image or animation goes beyond the cube area as shown in Fig. 11, it will go out of frame and will be cut off and not visible on the final output screen. Therefore, if there are any components that go outside the screen in terms of content development or direction, the components must be rearranged within a range that does not go beyond the cube area, and the animation work must be completed and rendered. At this time, the rendering resolution is rendered at a size resolution that is more than twice the final format resolution.

[0076]

[0077] The display that you see in the actual field is a form that includes perspective by distance as shown in Figure 12, and content that feels three-dimensional is produced for it. However, the final output format (animated video or image) to be output to the display is displayed to fill the display, so the display resolution is a rectangular format. Therefore, the production is produced in a form that includes perspective as seen from the viewpoint, but the final output content is rectangular, so the video or image must be transformed to fit that form. If the video or image size is forcibly increased to fit the output display size, the image will be enlarged and the resolution will deteriorate, causing the image to break. Therefore, the resolution can be doubled, rendering is performed, and then the image size is reduced to match the final output format to prevent the resolution deterioration problem. For example, if the final output resolution is 1920 X 1080 pixels, the resolution of the video or image source for texture mapping should be double that, or 3840 X 2160 pixels.

[0078]

[0079] Next, content source texture mapping is performed on the cube in the program. Figure 13 shows an image of a cube rendered from the viewpoint (camera point of view). Since it is an image seen from the camera point of view, the cube has perspective. Texture mapping is performed by projecting the content to be displayed on the three sides of the cube. Although the rendered image has perspective, since it is set to be placed on each side in the UV mapping settings, the image is forcibly stretched to fit each vertex to the original vertex of the corresponding side. In Figure 14, the camera can be understood as a projector that projects the rendered image onto the cube. Here, texture mapping is the process of applying a desired pattern, color, and texture to the surface to enhance the realism of the image or object to be expressed, and is mainly used on the surface of a three-dimensional solid model.

[0080]

[0081] Next, the final format of the anamorphic content is output. Fig. 15 is a drawing showing the screen when the rendered image is projected (camera mapped) onto the cube, and represents the final stereoscopic image that will be seen from the viewpoint of an actual cube LED display. To obtain this final stereoscopic image, the previous setting, that is, the position of the C display surface is moved as in Fig. 7 and rotated by -90 degrees (or +90 degrees), is applied to complete the final output format form in which three display surfaces are arranged horizontally side by side as in Fig. 16. The image to be displayed on these three display surfaces appears distorted in the final output format form, but when played back through the cube display, it is displayed as a normal image with the anamorphic technique applied.

[0082]

[0083] Figure 17 is a flowchart illustrating a series of operations for transmitting anamorphic 3D content from a cube display as described above. As illustrated in Figure 17, step S100 first sets up the cube display. This involves creating the shape of the cube display to be installed in a 3D program and then installing a camera while considering the viewpoint position, viewpoint, and angle of the actual installation site.

[0084]

[0085] In the subsequent step S110, the output surface of the cube content is set. The cube display consists of three display surfaces: the left surface (A), the right surface (B), and the lower surface (C).

[0086]

[0087] In the following step S120, the final format of the output content is set. In the present invention, the final format of the output content has a final output format in which the left side (A), the right side (B), and the lower side (C) are sequentially connected. The lower side (C) is set to be rotated -90 degrees (or 90 degrees) for normal content display on a cube display. In addition, since the final output screen is in the form of three connected squares of the same size, the UV mapping settings are also set to divide the content to be displayed on each of the three display surfaces into three equal parts.

[0088]

[0089] In the subsequent step S130, anamorphic content is created and the content to be displayed on the cube is projected onto the cube display set in step S100 to perform texture mapping of the content source. Fig. 18 is a drawing showing an example of an operation of performing text mapping by projecting the content to be displayed on three sides of the cube.

[0090]

[0091] In the subsequent step S140, the texture-mapped content is modified to fit the final output content format. Fig. 19 is a drawing showing a final rendered image of the texture-mapped content, in which the lower third display surface (C) is rotated -90 degrees (or 90 degrees) to fit the final output content format.

[0092]

[0093] Finally, the final output content changed in step S150 is transmitted to the cube display and displayed on each of the display surfaces A, B, and C, thereby displaying 3D content with an anamorphic effect applied on the cube display.

[0094]

[0095] The devices described above may be implemented as hardware components, software components, and / or a combination of hardware components and software components. For example, the devices and components described in the embodiments may be implemented using one or more general-purpose computers or special-purpose computers, such as, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate array (FPGA), a programmable logic unit (PLU), a microprocessor, or any other device capable of executing instructions and responding to them. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to the execution of the software. For ease of understanding, the processing device is sometimes described as being used alone; however, one of ordinary skill in the art will recognize that the processing device may include multiple processing elements and / or multiple types of processing elements. For example, a processing unit may include multiple processors, or a processor and a controller. Other processing configurations, such as parallel processors, are also possible.

[0096]

[0097] Software may include a computer program, code, instructions, or a combination of one or more of these, which may configure a processing device to perform a desired operation or may independently or collectively command the processing device. The software and / or data may be embodied in any type of machine, component, physical device, virtual equipment, computer storage medium, or device for interpretation by the processing device or for providing instructions or data to the processing device. The software may be distributed over networked computer systems and stored or executed in a distributed manner. The software and data may be stored on one or more computer-readable recording media.

[0098]

[0099] The method according to the embodiment may be implemented in the form of program commands that can be executed through various computer means and recorded on a computer-readable medium. The computer-readable medium may include program commands, data files, data structures, etc., alone or in combination. The program commands recorded on the medium may be those specially designed and configured for the embodiment or may be those known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs and DVDs, magneto-optical media such as floptical disks, and hardware devices specially configured to store and execute program commands such as ROMs, RAMs, and flash memories. Examples of program commands include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter, etc.

[0100]

[0101] Although the embodiments described above have been described by way of limited examples and drawings, those skilled in the art will appreciate that various modifications and variations can be made based on the above teachings. For example, appropriate results can still be achieved even if the described techniques are performed in a different order than described, and / or components of the described systems, structures, devices, circuits, etc. are combined or combined in a different manner than described, or are replaced or substituted with other components or equivalents.

[0102]

[0103] Therefore, other implementations, other embodiments, and equivalents to the claims should also be construed as falling within the scope of the claims described below.

[0104]

[0105] (Explanation of symbols)

[0106] 100: Anamorphic Server 200: User Terminal

[0107] 300: Cube Display

[0108] 310a~310c: Display surface 320: Support

Claims

1. A method for displaying 3D content on a cube-shaped display including a first display surface to a third display surface that are vertically connected to each other, A step of setting up a cube display on a 3D program, a step including a step of creating the shape of a cube display to be installed on site on a 3D program and then installing a camera by considering the viewpoint location, viewpoint, and angle of the actual installation site; A step for setting an output surface of cube content on a 3D program, wherein the cube display includes a left surface, a right surface, and a lower surface; A step for setting the final format of 3D content output from a 3D cube display; Steps for creating 3D content to be output on a 3D cube display; A step of performing texture mapping of a 3D content source by projecting the 3D content onto a cube display on a 3D program; A step of changing the texture mapped content to fit the final output content format; and It is characterized by including a step of transmitting the 3D content changed to the final output content format to a cube display. How to display 3D content on a cube-shaped display.

2. In paragraph 1, The step of setting the output surface of the cube content on the 3D program is characterized by including the step of setting at least three output surfaces that display the final content among the six output surfaces of the cube display through UV mapping that unwraps the cube and changes the two-dimensional model into a three-dimensional model. How to display 3D content on a cube-shaped display.

3. In paragraph 2, The step of setting the output surface of the cube content on the 3D program is characterized by including a step of deleting the remaining output surfaces except for the three selected output surfaces. How to display 3D content on a cube-shaped display.

4. In paragraph 3, The step of setting the final format of the 3D content is characterized by including the step of arranging the output surfaces in a row in the order of the left side, right side, and bottom side. How to display 3D content on a cube-shaped display.

5. In paragraph 4, The step of setting the final format of the 3D content is characterized in that it includes a step of setting the content output on the lower side to be rotated by -90 degrees or +90 degrees. How to display 3D content on a cube-shaped display.

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