Introduce Augmented Reality for Education
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  • 1. Introducing Augmented Reality for Education Purposes Poonsri Vate-U-Lan, Ed.D. College of Internet Distance Education Assumption University of Thailand poonsri.vate@gmail.comAbstract— This article is an introduction AR projects. This is because it may beto Augmented Reality technology for difficult to understand the new abstract ideaseducational purposes whose aim is to regarding the various technologies whichprovide a superior learning experience. Its work together in an integrated fashion.main objective is to act as a starting point Moreover, each AR project reflects thefor anyone interested in researching or definition in its own way depending mainlyusing Augmented Reality for educational on the functions, objectives and details ofpurposes which can be simply defined as each AR project.an interactive 3D environment which links In practice, AR is an innovation that hasphysical reality and the virtual world by been invented to serve the humanRadio Frequency Identification (RFID). imagination. It has been found that theAugmented Reality will be widely used information on the Internet concerning AR iswithin the near future. This paper growing and being expanded all the time.describes many projects of Augmented Currently, the new AR projects and theReality which support educational resulting AR reports are being disseminatedprojects in both on-line and off-line and shared on the Internet. Many ARmodes. The paper also includes projects directly involve computer techno-information of how augmented reality logy, the Internet and either portable devicesworks in different environments. Its or wearable computers or mobile smartfuture directions and areas requiring phones. Basically, AR has been used widelyfurther research are discussed. in many areas such as education, advertising and the print media. Google Trend showsKeywords— Augmented reality, that the average interest level of InterneteLearning, Internet, Mobile phone users around the world towards AR hastechnology, new media, Virtual reality grown significantly since 2009 (see Fig. 1). 1I. INTRODUCTION This article aims to provide backgroundinformation about Augmented Reality (AR)projects used for educational purposes. It isdivided into two main parts. The first partprovides detailed information aboutAugmented Reality. The second details someAR projects for education. AR technology causes people to feelfascinated from the first time of their Fig. 1 The average interest level of Internet users around the world in Augmented Realityinvolvement. In theory, augmented realitybegan to be imaginatively invented towards The annual report that focuses on modernthe end of the 1960s [1]. Before outlining a learning and teaching technologies, namelydefinition of AR, it is necessary to the Horizon Report which was first issued inunderstand the working processes of simple 2002 by the New Media Consortium and the The Seventh International Conference on eLearning for Knowledge-Based Society, 16-17 December 2010, Thailand
  • 2. Srisakdi CharmonmanEDUCAUSE Learning Initiative [1] Internet to demonstrate information throughestimated in its 2010 report that simple AR the browser by installing Java Script andwould be widely used for educational Flash Player version 9.0.115 or newer and 2)purposes within 2-3 years. According to the a computer not connected to the Internet,Emerging Technology Hype 2010 by the where there needs to be installed theGartner Firm from the United States of software able to exhibit AR such as ARIUX,America, there were an estimated 1,800 ‘AR Player’, Unifeye etc..technologies that have been studied. Theresults found that AR occupies the highest Not only does the software need to bepoint on the graph [2]. Gartner Firm reported installed, but also the AR project file isthat AR will be widely recognized in 2-5 required to be run during the demonstration.years from 2010 as shown in Fig. 2 [2]. In order to demonstrate an AR project, users need to open an AR project file on the computer which has a web camera and software to display AR. Recently, most of the AR companies compile the project into ‘*. exe’ or execute file. C. Marker The marker is a symbol printed on any type of material; the symbol is defined by the particular AR project. Some companies also Fig. 2 Emerging Technology Hype in 2010 called the marker as ‘pattern’. The markers Source [2] used in the commercial AR projects are unlimited forms. The markers might be a real II. PROCESS OF USING AR object or printed in a booklet, book, The processes of using AR technology magazine, flyer, brochure, shirt, skin and socan be explained simply in terms of normal on.computer technology such as hardware andsoftware. The needed equipment is asfollows.A. HardwareThe hardware consists of two maincategories: 1) a computer which refers eitherto a desktop computer or a handheldcomputer that connects to 2) a web camera.Please note that it is not necessary to have athree-dimensional video card in thecomputer. It is recommended to have aspeaker connected to the computer in orderto play the sound from any multimedia Fig. 3 Augmented Reality processes of a computerchannels of the AR projects. The hardwarefor AR also includes any smart mobile phone The set-up for a simple AR project isor iPhone which can perform normal shown in Fig. 3, that is, the AR project willfunctions as a computer and includes a be demonstrated on the computer screencamera able to connect to the Internet. when 1) the hardware such as a computer is already connected to a web camera 2) theB. Software software that displays particular AR projects The software is an important tool in and the AR projects file are both installed ondisplaying AR. It can be divided into two the computer and 3) the marker is displayedtypes: 1) a computer connected to the to the front of web camera. Then, the AR Proceedings of the Fifth International Conference on eLearning for Knowledge-Based Society, December 11-12, 2008, 2.2
  • 3. project is displayed on the computer screen. tracking is required to sustain the illusion.”Simulations in different situations are [3].illustrated in the following figures. Fig. 5 Using Head Mounted Displays Fig. 4 Process of Augmented Reality on a portable for Augmented Reality computer Source [4] The set-up of an AR project on a portable EON Reality Inc, an Interactive 3D andcomputer is shown in Fig. 4, that is, the AR Simulation-Based Learning Softwareproject will be demonstrated on the portable provider for business and education based oncomputer screen when 1) the hardware such Virtual Reality technology, definedas a portable computer has a camera 2) the Augmented Reality as “an interactive 3-software that display particular AR projects Dimensional environment that blends withand the AR projects file are both installed on our physical reality; the capability to link thethe computer and 3) the marker has been virtual world with the physical worldcaptured in front of a camera. Referring to through for example a “superman vision”the Fig. 4, the marker is the real object that is where a video image is superimposed with aan apple. The AR project augments detail of 3-Dimensional environment model of thenutrition information of an apple on the same environment and adding hiddencomputer screen. information accessible from sensors like Radio Frequency Identification.” [5]. III. DEFINITION OF AR One definition of AR by an academic is The idea of Augmented Reality started “live or direct view of a physical real-worldwith the desire to present more information environment, in 3-Dimensional whoseabout an object on the limited space of the elements are augmented by virtual orboard. Tom Caudell invented the first AR computer-generated images” [6].projects in 1960 [1]. It is crucial to reviewthe definitions of AR from many projects According to Wheeler, a lecturer in theand then summarize them into a general Faculty of Education, University ofdefinition as described below. Plymouth, Augmented Reality is when people interact with computers by using The Human Interface Technology objects in the physical world [7]. WheelerLaboratory (HITLab) at the University of proposed a diagram of the “VirtualityWashington in Seattle defined Augmented Continuum” which he adapted from NijholtReality as “The use of transparent Head and Traum (2005) (see Fig. 6). The realMounted Displays (HMDs) to overlay world is on one site and the virtual world iscomputer generated images onto the physical on another site; when both worlds mergeenvironment. Precisely calibrated, rapid head together it is ‘mixed reality’. Augmented Proceedings of the Fifth International Conference on eLearning for Knowledge-Based Society, December 11-12, 2008, 2.3
  • 4. Srisakdi CharmonmanReality is ‘the virtual augmenting the real’. project are far beyond a computer simulationAugmented virtually is when ‘the real program since the users can use their handsaugments the virtual’ [7]. to physically practice on the reality; they do not use a mouse to click or function. Fig. 6 Virtuality Continuum Source [7] Fig. 7 AR Surgical training Therefore, information about the meaning Source [8]of Augmented Reality has been gathered - its B. AR Orthopedic Courseconcise definition can be Augmented Realityis the display and manipulation of 3- The marker-less AR project for teachingDimensional objects or multimedia or a an orthopedic class (Fig. 8) is the project thatmovie that show up at the same time that has been designed to use a real human organthe reality on the computer screen appears as marker. The Augmented Reality will bewhen the camera of the device which presented on the computer screen, wheninstalls the software captures the marker users present their limbs such as an arm inthrough Radio Frequency Identification front of the web camera. The project in the(RFID). classroom simply amazes since interaction between users and computer is simple and IV. EXAMPLES OF AR FOR effective. The potential of this AR project is EDUCATION not only to creating student interest but also AR projects have been created and used to increase retention of the information.to be of benefit in many sectors, especiallyfor education. This section presents some ARprojects for educational purposes. ARtechnology has extended the potential forteaching and learning in amazing andachievable ways.A. AR Surgical training The AR Surgical training project uses ARto simulate human organs (Fig. 7). Theproject was designed to use multiple Fig. 8 AR Orthopedic Course Source [9]markers, head mounted displays, a cameraand sensors altogether at once. The AR starts C. AR for BMWwhen the camera captures the markers, andthe augmented reality will demonstrate The Bavarian Motor Works (BMW)through the head mounted displays together company has created speech recognition ARseeing the real objects. The results of this project in order to demonstrate how to Proceedings of the Fifth International Conference on eLearning for Knowledge-Based Society, December 11-12, 2008, 2.4
  • 5. assemble the parts of a motorcar. They aimto train staff and have utilized the innovationto convince customers they are the leader ofhigh quality services and technology. TheAR training has definitely benefited thecompany. This AR project has alsorepresented the way to apply and design ARtechnology to suit the conditions of the realneeds which are working in the open areasuch as the garage environment and have noavailable hand to function the mouse. Fig. 9 Augmented Reality for BMW Source [10] Referring to the above examples, AR hasbeen created by the imaginations of people,and AR has benefited many projects,especially in education. V. CONCLUSION AR can be used as an innovativetechnology integrating actual reality andvirtual reality. This article described in ageneral way augmented reality, the processof using AR, definitions of AR and examplesof AR projects for educational purposes.This is to introduce AR and to present thecapabilities of the new computer technologyand for improving learning materials. Theresearch and development of AR foreducation is in very high demand because ofthe capacity of the technology to create alearning environment almost ‘miraculous’ inits dimensions.REFERENCES Proceedings of the Fifth International Conference on eLearning for Knowledge-Based Society, December 11-12, 2008, 2.5