环境艺术设计外文翻译室内设计在增强现实环境.docx

1、环境艺术设计外文翻译室内设计在增强现实环境室内设计在增强现实环境Interior Design in Augmented Reality EnvironmentInterior Design in Augmented Reality EnvironmentViet Toan PhanDepartment of Industrial ConstructionHaNoi University of Science Technology, VietNamSeung Yeon ChooSchool of Architecture & Civil EngineeringKyungpook Nationa

2、l UniversityABSTRACTThis article presents an application of Augmented Reality technology for interior design. Plus, an Educational Interior Design Project is reviewed. Along with the dramatic progress of digital technology, virtual information techniques are also required for architectural projects.

3、 Thus, the new technology of Augmented Reality offers many advantages for digital architectural design and construction fields. AR is also being considered as a new design approach for interior design. In an AR environment, the virtual furniture can be displayed and modified in real-time on the scre

4、en, allowing the user to have an interactive experience with the virtual furniture in a real-world environment. Here, AR environment is exploited as the new working environment for architects in architectural design works, and then they can do their work conveniently as such collaborative discussion

5、 through AR environment. Finally, this study proposes a new method for applying AR technology to interior design work, where a user can view virtual furniture and communicate with 3D virtual furniture data using a dynamic and flexible user interface. Plus, all the properties of the virtual furniture

6、 can be adjusted using occlusion- based interaction method for a TangibleAugmented Reality.KeywordsAugmented Reality, Tangible AR, CAAD, ARToolKit, Interior design.1. INTRODUCTION Visualizing how a particular table or chair will look in a room before it is decorated is a difficult challenge for anyo

7、ne. Hence, Augmented Reality (AR) technology has been proposed for interior design applications by few previous authors, for example,Koller, C. Wooward, A. Petrovski; K. Hirokazu, et al. The related devices typically include data glasses connected to a portable PC (Head-mounted display- HMD). Plus,

8、various lightweight solutions using a PDA device has been proposed by the Augmented Reality Team in Findland (S. Sitanen and C. Woodward, 2003). However, these devices are right not commonly available for non-professional users. Accordingly, this paper presents an augmented reality system for design

9、ing/educating/presenting interior design projects using overlaid virtual furniture in a physical environment based on a regular PC home system. Tracking markers are placed on the floors or walls to define the scale and coordinate system of the room. Next, the user selects virtual furniture on the sc

10、reen and places it in the design space. In the AR scene, the 3D virtual furniture is integrated into a real environment and can be arranged along side real furniture. Experiments are implemented using basic home computer equipment, including a PC, HMD (or web camera), and printer. As a result, it is

11、 hoped that the proposed system will allow a broad range of users. While some similar systems have already been presented by another research group, the system proposed in this paper includes additional functions for the user interface and an improved implementation. For example, the user can intera

12、ct with virtual furniture using a Tangible Augmented Reality in real time, and change the color, style, or covering of furniture in a real environment. Therefore, this allows complex and varied designs to be explored and visualized, making AR technology for interior design accessible to both profess

13、ionals and amateurs.2.AUGMENTED REALITY- NEW RESEARCH APPROACH FOR ARCHITECTURE2.1 Augmented Reality technology Augmented Reality (AR) is a new technology that involves the overlay of computer graphics on the real world. As a result, the user can see the real world augmented with virtual objects and

14、 can interact with them. Within a more general context, AR is also termed Mixed Reality (MR), referring to a multi-axis spectrum of areas that cover Virtual Reality (VR), Augmented Reality (AR), telepresence, and other related technology 1 (Figure 1).Figure 1. Paul Milgrams Reality- Virtual continuu

15、m. Augmented Reality systems combine digital information and the real world in a way that the user experiences them as one. A particularly important property of AR is locating virtual objects in the right place and position, which makes the Tracking System one of the most important components of an

16、AR system. Essentially, an AR system must be able to follow the users point of view dynamically and keep virtual objects aligned with real world objects. The basic components of an AR system are a display, camera for graphic captures, and computer installed application software, plus various differe

17、nt kinds of hardware can International Journal of Computer Applications (0975 8887) Volume 5 No.5, August 2010 be used, for example, camera phones, PDAs, lap-tops, HMDs, and wearable computer systems. Typically, an ARToolKit library is used to determine the relation between the real and virtual worl

18、d. The ARToolKit uses a computer vision technique to define the position and orientation of the real camera viewpoint relative to a real world marker. Next, the ARToolKit defines and calculates the position of the virtual coordinates. Based on a concurrence of virtual and real camera coordinates, th

19、e computer graphics are then drawn as an overlay on a fiducial markers card. As a result, the user experiences a video see-through augmented reality on the PC screen or more lively impression by HMDs (Kato, H.2001 and HIT Lab Washington University). Although Augmented Reality has only been studied f

20、or one decade, the growth and progress in the past few years have been remarkable. As such, AR technology has many possible applications across a wide range of fields, including entertainment, education, medicine, military training, engineering, and manufacturing 2(Figure 2; 3). Figure 2. AR applica

21、tion in entertainment and medical fields.Figure 3. AR application in military and manufacture engineering fields. It is also expected that other potential areas for application will still appear with the dissemination of this technology. During the early stages, the main focus of AR development was

22、related to hardware technology rather than usability. However, the rapid development of mobile (handheld) with better processing capacities and long-lasting batteries has raised the issue of lightweight mobile AR systems. Thus, mobile AR devices are now one of the most promising emerging technologie

23、s. Similarly, the proposed system was also designed to appeal to a broader range of users based on the use of a regular PC and HMD.2.2 Augmented Reality in architecture field Recently, AR technology is also being considered as a new design approach for architecture. As a result, a lot of AR experime

24、nts and research have been directed toward the architectural design process. For example, Figure 4 Left shows a full-size 3D virtual house in a real life environment, where the handheld AR device allows the user to walk around and through it 3(Augmented Team- Finland 2003). Meanwhile, Figure 4- Righ

25、t shows another implementation of AR in archaeology and touring guide, where the user is shown the virtual heritage buildings raised up from ruins on historical site.Figure 4. Left: Virtual building in PDA. Right: Virtual Hera temple in historical. In the case of architecture, the above applications

26、 can be effective for both designing and teaching. However, a growing number of new applications of AR technology are expected in the field of architecture.3. INTERIOR DESIGN IN DIGITAL ENVIRONMENT3.1 Properties of interior design In the case of interior design, the designer essentially applies the

27、three basic principles of interior design: color, scale, and proportion within a predetermined space. Thus, the proposed AR system is focused on giving the user the flexibility to design using these three basic principles. Therefore, in the proposed AR environment, the user is able to adjust the pro

28、perties of virtual furniture and create different arrangements in a real environment.3.2 System design For implementation, two separate modules were developed: one for creating and managing the 3D database, and the other for displaying, as show in below figure (Figure 5). First, CAD applications ext

29、ract information from a drawing andlink it to a database. For the given space, geometrical information is then extracted from a three-dimensional database of furniture. After loading the geometries, the position and direction of the views for the user are calculated based on data marker tracking. Si

30、multaneously, the location- and direction- based geometry data are transformed using transformation matrices to produce images that align beside other objects in the real view. As such, the position tracker and orientation tracker are important elements of AR systems and the development AR technolog

31、y. Figure 6 summaries the tracking and display process. International Journal of Computer Applications (0975 8887) Volume 5 No.5, August 2010Figure 5. System diagram. The properties of the furniture graphics are saved in a database generated by a CAD application, e.g. 3DSMax software, while OpenGL r

32、enders the final graphics. Plus, an ARToolKit software library is used to calculate the 3D positions and orientations of the virtual furniture.Figure 6. AR tracking& display process: the computergenerated graphics are integrated into users view.3.3 Software CAD applications handle the management of the building geometry data and link it to a database. Next, the AR software retrieves and displays the position and orientation data in the defined environment. The 3DSMax or other Building Information Modelling (BIM) applications (e.g. ArchiCAD, Revit etc.) are used as the basic