KR20140145217A - 3d virtual modeling system using spatial information and method thereof - Google Patents
3d virtual modeling system using spatial information and method thereof Download PDFInfo
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Abstract
Description
The present invention relates to a three-dimensional virtual modeling system, a method thereof, and a computer-readable recording medium storing a program for realizing the method. More particularly, the present invention relates to a three- The present invention relates to a three-dimensional virtual modeling system capable of performing modeling, and a computer-readable recording medium storing a program for realizing the method.
As the society evolved from the industrial society to the information society, the construction company introduced a virtual reality (VR) sample house that could replace the function of the existing sample house.
First, the outline of the virtual reality and the prior research will be described as follows.
Virtual reality is a combination of reality and unreal. It was first named by Jarrow Lanier of VPL Research in the US in 1989. This virtual reality technology is a technology that gives a feeling of actually experiencing the building before the construction through the computer system or the simulated environment and the situation realized through simulations. In other words, virtual reality technology can be said to be 'a technology that makes people feel real in cyber space created by computer'.
These virtual reality technologies can be classified into an immersive virtual reality system (Impressive VR system), a desktop / vehicle virtual reality (VR), and augmented reality. Here, an immersive virtual reality (Impressive VR) system is a system in which a user wears necessary basic equipment in a three-dimensional space created by a computer, and is completely immersed in the world to experience and interact with a defined world It is a virtual reality system. The Desktop / Vehicle VR method uses a traditional monitor screen as a perspective view.
The desktop / non-virtual reality method is most commonly used for the existing cyber model house. The panorama format using QTVR (Quicktime Virtual Reality) is most commonly used when the desktop / non-virtual reality method is divided into three categories. The format using X3D (Extensible Three Dimension), which is an alternative to VRML (Virtual Reality Modeling Language) And a format using a tool (TURNTOOL).
Next, a cyber model house using VRML will be described as follows.
VRML is a language for modeling the 3D world and multimedia such as sound and video on the WWW (World Wide Web). Accordingly, the IVR (Internet Virtual Reality) using the Internet can be utilized to enable a plurality of observers to directly experience the space desired by the user at any place where the Internet is connected.
VRML is a language specification for displaying three-dimensional virtual space. Just as HTML (HyperText Markup Language) documents tag files created by scripts, VRML is surrounded by tags, each object is a node. VRML is surprisingly simple compared to 3D having a significant amount of data. In a normal editor, enter a text format script and save the file so that it has an extension of * .wrl.
In the future, a VRML-formatted 3D space description file (* .wrl) installed on a WWW server on the Internet is transmitted from a general user, and VRML browser mounted on the computer of the VRML user side converts the text format data into three-dimensional data By rendering, the three-dimensional virtual space is displayed on the display device. Accordingly, the displayed three-dimensional virtual space can be moved and controlled through a mouse operation or an input device such as a keyboard. Further, the object can be linked to an object in the three-dimensional space, and the object can be controlled by clicking with the mouse, and the two-dimensional HTML file can be read.
In the field of architecture, VRML is used to effectively advertise already-designed buildings, and CAD (Computer Aided Design) data can be effectively utilized by using converters. In addition, it is possible to simulate the building before completion by using VRML so that it can virtually walk inside the completed building.
This VRML is certified by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC) as a standard for representing 3D graphics on the Internet, and supports image-based 3D images and 3D based on modeling. It has the advantage of being able to create and edit in any text editor without requiring a special editor in the form of HTML, because the license is freely available for anyone to freely express on the web.
On the other hand, VRML has a disadvantage of slow processing speed. Although VRML is represented in a much simpler format than the previous three-dimensional data representation, it does not represent a satisfactory file load speed with current network performance and rendering performance. This may not be the direct cause of VRML, but it is necessary to develop a structure that can improve the speed. In addition, VRML has a disadvantage in reducing the immersion feeling of the user represented by the quality of the screen. Although VRML provides a framework for interacting with the virtual world, it is still unsatisfactory and requires many functions and performance improvements.
Next, a cyber model house using the panorama VR will be described as follows.
Panorama VR is a technique to experience image-based space on the web. A typical technology of panorama VR is QTVR technology implemented based on Apple Computer's Quicktime. QTVR is based on a photo still image.
1 is a diagram showing an operation principle of a conventional QTVR.
As shown in Fig. 1, the QTVR of the panorama VR format is used most often. QTVR has a center point in the shape as shown in Fig. The camera at this center point is the viewpoint of the viewer viewing the virtual space. From this center point, the viewer can see anywhere in the circular panorama. The QTVR can produce a result based on a real examination. In order to obtain a photograph for a scene, the camera should be rotated at a certain angle as shown in FIG. 2, and the photograph should be photographed at 360 degrees.
2 is a view showing the principle of photography of a conventional panorama VR camera.
The QTVR used in the conventional VR model house is composed of a simple six-sided cube that enables the virtual reality observer to view any room based on the actual nature of the program. It is a method of photographing each face of a cube and photographing it while the camera is rotating at the center point.
3 is a diagram showing an example of a conventional QTVR cyber model house.
Since QTVR cyber model house is image based, it takes advantage of less computer load than other methods because it realizes virtual reality as a rendered image image with shorter waiting time than modeling based web 3D technology.
On the other hand, the QTVR cyber model house can be manufactured only when a sample house is built based on a due diligence, and since the camera is fixed to the center point, it is possible to perform only a rotational motion and a slight upward / downward motion around the axis, Since the map is not a high-resolution image due to the bitmap method, the image is distorted when it is enlarged. The 2D image is attached to the 3D surface and the surface is constrained. Therefore, the 2D image is strong and the space is weak. There is a fear that it will convey the distorted fact to the person.
In conclusion, the conventional VRML-based cyber model house and the panorama VR-based cyber model house have a problem that the streaming time is longer than the time that the person can wait psychologically and control is difficult in the virtual space.
An embodiment of the present invention provides a three-dimensional virtual modeling system capable of performing three-dimensional virtual modeling in real time using spatial information, a method thereof, and a computer-readable recording medium on which a program for realizing the method is recorded .
The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention which are not mentioned can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. It will also be readily apparent that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.
A three-dimensional virtual modeling system according to an embodiment of the present invention includes: a three-dimensional space recognition unit for recognizing a three-dimensional space; A three-dimensional spatial information acquisition unit for acquiring three-dimensional spatial information from the three-dimensional space recognized by the three-dimensional spatial recognition unit; A three-dimensional virtual object arrangement unit for arranging a three-dimensional virtual object in the three-dimensional space recognized by the three-dimensional spatial recognition unit using the three-dimensional spatial information acquired by the three-dimensional spatial information acquisition unit; A spatial displacement recognition unit for recognizing a displacement value of the three-dimensional space; A three-dimensional spatial information changing unit for changing the three-dimensional spatial information obtained by the three-dimensional spatial information obtaining unit according to the displacement value recognized by the spatial change recognizing unit; Dimensional virtual object rearranging unit for rearranging the three-dimensional virtual objects arranged in the three-dimensional virtual object arranging unit by using the displacement values recognized by the space change recognizing unit and the three-dimensional spatial information changed in the three- part; And a display unit for displaying a "three-dimensional space in which a three-dimensional virtual object is arranged" from the three-dimensional virtual object arrangement unit and displaying the "three- And a display unit.
A three-dimensional virtual modeling method in a three-dimensional virtual modeling system according to an embodiment of the present invention includes: (a) recognizing a three-dimensional space; (b) obtaining three-dimensional spatial information from the recognized three-dimensional space; (c) arranging a three-dimensional virtual object in the recognized three-dimensional space using the obtained three-dimensional spatial information; (d) displaying the "three-dimensional space in which the three-dimensional virtual objects are arranged" (e) recognizing a displacement value of the three-dimensional space; (f) changing the obtained three-dimensional spatial information according to the recognized displacement value; (g) relocating the disposed three-dimensional virtual objects using the recognized displacement value and the changed three-dimensional spatial information; And (h) displaying the "three-dimensional space in which the three-dimensional virtual object has been rearranged ".
According to an embodiment of the present invention, there is provided a recording medium including: a three-dimensional virtual modeling system having a processor; Acquiring three-dimensional spatial information from the recognized three-dimensional space; Arranging a three-dimensional virtual object in the recognized three-dimensional space using the obtained three-dimensional spatial information; Displaying the "three-dimensional space in which a three-dimensional virtual object is disposed" Recognizing a displacement value of the three-dimensional space; Changing the obtained three-dimensional spatial information according to the recognized displacement value; Rearranging the arranged 3D virtual objects using the recognized displacement values and the changed 3D spatial information; And a step of displaying the "three-dimensional virtual object rearranged three-dimensional space ".
According to the embodiment of the present invention, 3D virtual modeling can be performed in real time using spatial information.
Further, according to the embodiment of the present invention, not only can the user display the three-dimensional virtual object disposed thereon along with the three-dimensional space by displaying the "three-dimensional space in which the three- The three-dimensional virtual object rearranged with the three-dimensional space changed according to the movement or movement of the user can be displayed by displaying the three-dimensional virtual object rearranged in the three-dimensional virtual space.
1 is a diagram showing an operation principle of a conventional QTVR.
2 is a view showing the principle of photography of a conventional panorama VR camera.
3 is a diagram showing an example of a conventional QTVR cyber model house.
4 is a block diagram of a 3D virtual modeling system using spatial information according to an embodiment of the present invention.
5 is a flowchart illustrating a 3D virtual modeling method using spatial information according to an embodiment of the present invention.
FIG. 6 is a view for explaining the concept of space recognition according to an embodiment of the present invention.
FIG. 7 is a view for explaining a concept of space recognition according to movement of a user according to an embodiment of the present invention.
8A to 8F are views showing a case where a three-dimensional virtual object is arranged and rearranged in a three-dimensional space according to an embodiment of the present invention.
In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to facilitate a person skilled in the art to easily carry out the technical idea of the present invention. .
And throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between. Also, when a component is referred to as " comprising "or" comprising ", it does not exclude other components unless specifically stated to the contrary . In addition, in the description of the entire specification, it should be understood that the description of some elements in a singular form does not limit the present invention, and that a plurality of the constituent elements may be formed.
4 is a block diagram of a 3D virtual modeling system using spatial information according to an embodiment of the present invention.
4, a three-dimensional virtual modeling system using spatial information according to an embodiment of the present invention includes a three-dimensional
Next, the respective components will be described in more detail as follows.
In one embodiment of the present invention, a space may include both a space having an actual shape or a virtual space.
Therefore, the three-dimensional
In an embodiment of the present invention, markers may be provided at each vertex of the space (vertices of ceiling and wall, vertex of floor and wall) for accurate recognition of the actual space. In the embodiment of the present invention, the automatic mode in which the size of the space is automatically recognized by using the marker or the manual mode in which the accurate numerical value (width, height, depth) Manual mode can be implemented.
The three-dimensional spatial
The three-dimensional virtual
Then, the
On the other hand, if a change occurs in the recognition space according to the movement of the user or the movement of the user while the "three-dimensional space in which the three-dimensional virtual objects are arranged" is displayed as described above, the space displacement recognition unit 405 ) Recognizes the displacement value of the three-dimensional space by using a marker or an acceleration sensor and a gyro sensor of a smartphone. That is, the spatial
The three-dimensional spatial
Then, the
FIG. 5 is a flowchart of a three-dimensional virtual modeling method using spatial information according to an embodiment of the present invention. The specific embodiment of the method is as described above. Here, only the operation processing procedure will be briefly described.
First, the three-dimensional
Thereafter, the three-dimensional spatial
Thereafter, the 3D virtual
Thereafter, the
When a change occurs in the recognition space according to the movement of the user or the movement of the user while the "three-dimensional space in which the three-dimensional virtual objects are arranged" is displayed as described above, the space
Thereafter, the three-dimensional spatial
The 3D virtual
Then, the
FIG. 6 is a view for explaining the concept of space recognition according to an embodiment of the present invention.
First, a case where a marker is not provided will be described as follows.
-
- Form a front wall A through a virtual vector that meets each vertex.
- Form wall surface B through lines B1 and B3 having a certain angle (angle B1, angle B2) from wall A
- Form wall C through lines C2 and C4 having a certain angle (angle C2, angle C4) from wall A
- Form floor D through lines D3 and D4 with a certain angle (angle D3, angle D4) from wall A
- Form ceiling E through lines E1 and E2 with a certain angle (angle E1, angle E2) from wall A
- Enter the values of width (w), length (l) and height (h) to match the scale of the formed space.
- The recognized three-dimensional space corresponding to the actual space is completed.
Next, a case where a marker is provided will be described.
-
- Form a front wall A through a virtual vector that meets each vertex.
- Form wall surface B through lines B1 and B3 having a certain angle (angle B1, angle B2) from wall A
- Form wall C through lines C2 and C4 having a certain angle (angle C2, angle C4) from wall A
- Form floor D through lines D3 and D4 with a certain angle (angle D3, angle D4) from wall A
- Form ceiling E through lines E1 and E2 with a certain angle (angle E1, angle E2) from wall A
- Since the length values of each marker located at
- The recognized three-dimensional space corresponding to the actual space is completed.
FIG. 7 is a view for explaining a concept of space recognition according to movement of a user according to an embodiment of the present invention.
First, a case where a marker is not provided will be described as follows.
- Extracts the changed position of the recognition device through the acceleration sensor and the gyro sensor of smart phone (recognition device).
- Extract the
- Form wall A, B, C, floor D, and ceiling E through imaginary vectors that meet each vertex.
- Calculate the scale value based on the entered width (w), length (l), and height (h).
- The recognized three-dimensional space corresponding to the position change is completed.
Next, a case where a marker is provided will be described.
- Track the markers at
- Form wall A, B, C, floor D, and ceiling E through imaginary vectors that meet each vertex.
- The scale of the space is calculated according to the predetermined length value of each marker.
- The recognized three-dimensional space corresponding to the actual space is completed.
8A to 8F are views showing a case where a three-dimensional virtual object is arranged and rearranged in a three-dimensional space according to an embodiment of the present invention.
8A shows a case where the recognized three-dimensional space form is displayed through the
FIG. 8B shows a case in which a three-dimensional virtual object such as a floor material, wallpaper, and a luminaire is selected and placed in a recognized three-dimensional space.
FIG. 8C shows a case where a three-dimensional virtual object such as a TV or a sofa is selected and placed in a recognized three-dimensional space.
FIGS. 8D to 8F show a case where a recognized three-dimensional space and a view of a three-dimensional virtual object disposed thereon are automatically converted when a change occurs in the recognition space according to a movement of the user, such as movement or direction change.
Meanwhile, the 3D virtual modeling method using spatial information according to the present invention may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions recorded on the medium may be those specially designed and constructed for the present invention or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. The medium may be a transmission medium such as an optical or metal line, a wave guide, or the like, including a carrier wave for transmitting a signal designating a program command, a data structure, or the like. Examples of program instructions include machine language code such as those generated by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware device may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.
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, Various permutations, modifications and variations are possible without departing from the spirit of the invention. Therefore, the scope of the present invention should not be construed as being limited to the embodiments described, but should be determined by the scope of the appended claims, as well as the appended claims.
401: three-dimensional space recognition unit 402: three-dimensional spatial information acquisition unit
403: 3D virtual object arrangement unit 404:
405: Space Displacement Recognition Unit 406: 3D Space Information Modification Unit
407: 3D virtual object relocation unit
Claims (11)
A three-dimensional space recognition unit for recognizing a three-dimensional space;
A three-dimensional spatial information acquisition unit for acquiring three-dimensional spatial information from the three-dimensional space recognized by the three-dimensional spatial recognition unit;
A three-dimensional virtual object arrangement unit for arranging a three-dimensional virtual object in the three-dimensional space recognized by the three-dimensional spatial recognition unit using the three-dimensional spatial information acquired by the three-dimensional spatial information acquisition unit;
A spatial displacement recognition unit for recognizing a displacement value of the three-dimensional space;
A three-dimensional spatial information changing unit for changing the three-dimensional spatial information obtained by the three-dimensional spatial information obtaining unit according to the displacement value recognized by the spatial change recognizing unit;
Dimensional virtual object rearranging unit for rearranging the three-dimensional virtual objects arranged in the three-dimensional virtual object arranging unit by using the displacement values recognized by the space change recognizing unit and the three-dimensional spatial information changed in the three- part; And
Dimensional space in which a three-dimensional virtual object is arranged "from the three-dimensional virtual object arrangement unit and displays the " three-dimensional space in which a three-dimensional virtual object has been rearranged" part
Dimensional virtual modeling system.
The three-dimensional space recognizing unit includes:
A 3D virtual modeling system that recognizes the basic structure of a three - dimensional space from spatial images or virtual data.
The three-dimensional space recognizing unit includes:
A three - dimensional virtual modeling system that recognizes three - dimensional space using markers at each vertex of space.
Wherein the 3D virtual object arrangement unit comprises:
Dimensional virtual object to be placed in a three-dimensional space, and after a position on the three-dimensional space in which the selected three-dimensional virtual object is to be arranged is specified, the three-dimensional space information obtained in the three- And arranging the selected three-dimensional virtual objects in the designated three-dimensional space.
The space-
A three - dimensional virtual modeling system that recognizes the displacement value of a three - dimensional space using an acceleration sensor and a gyro sensor of a marker or a recognition device.
(a) recognizing a three-dimensional space;
(b) obtaining three-dimensional spatial information from the recognized three-dimensional space;
(c) arranging a three-dimensional virtual object in the recognized three-dimensional space using the obtained three-dimensional spatial information;
(d) displaying the "three-dimensional space in which the three-dimensional virtual objects are arranged"
(e) recognizing a displacement value of the three-dimensional space;
(f) changing the obtained three-dimensional spatial information according to the recognized displacement value;
(g) relocating the disposed three-dimensional virtual objects using the recognized displacement value and the changed three-dimensional spatial information; And
(h) displaying the "three-dimensional virtual object rearranged three-dimensional space"
Dimensional virtual modeling method.
The step (a)
A three - dimensional virtual modeling method for recognizing a basic structure of a three - dimensional space from a spatial image or virtual data.
The step (a)
A three dimensional virtual modeling method for recognizing a three dimensional space using markers provided at each vertex of a space.
The step (c)
Selecting a three-dimensional virtual object to be placed in a three-dimensional space;
Receiving a position on the three-dimensional space in which the selected three-dimensional virtual object is to be arranged; And
And arranging the selected three-dimensional virtual object in the designated three-dimensional space using the obtained three-dimensional spatial information
Dimensional virtual modeling method.
The step (e)
A three-dimensional virtual modeling method for recognizing a displacement value of a three-dimensional space using an acceleration sensor and a gyro sensor of a marker or a recognition device.
Recognizing a three-dimensional space;
Acquiring three-dimensional spatial information from the recognized three-dimensional space;
Arranging a three-dimensional virtual object in the recognized three-dimensional space using the obtained three-dimensional spatial information;
Displaying the "three-dimensional space in which a three-dimensional virtual object is disposed"
Recognizing a displacement value of the three-dimensional space;
Changing the obtained three-dimensional spatial information according to the recognized displacement value;
Rearranging the arranged 3D virtual objects using the recognized displacement values and the changed 3D spatial information; And
Displaying the "three-dimensional space in which the three-dimensional virtual object has been rearranged"
A computer-readable recording medium having recorded thereon a program for realizing a computer-readable recording medium.
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| US9892323B2 (en) | 2016-01-05 | 2018-02-13 | Electronics And Telecommunications Research Institute | Augmented reality device based on recognition of spatial structure and method thereof |
| WO2018164287A1 (en) * | 2017-03-06 | 2018-09-13 | 라인 가부시키가이샤 | Method and device for providing augmented reality, and computer program |
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