Augmented reality ppt

Augmented reality ppt

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  NAME : YOGESHBAISLA BTECH(CSE) 2ND SEMESTER SEMINAR ON AUGMENTED REALITY
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  Index  Introduction  Whatis AR?  HISTORY  How is it used?  How does it work?  Applications  Augmented Reality vs. Virtual Reality  Implementation Framework  Advantages  Disadvantages  Issues in Augmented Reality  Challenges  Conclusion  References
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  Introduction  Augmented Reality(AR) is a growing area in virtual reality research.  The world environment around us provides a wealth of information that is difficult to duplicate in a computer.  This is evidenced by the worlds used in virtual environments.
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  What is AR? The process of superimposing digitally rendered images onto our real-world surroundings, giving a sense of an illusion or virtual reality. Recent developments have made this technology accessible using a Smartphone.
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  HISTORY  The beginningsof AR, as we define it, date back to Sutherland’s work in the 1960s, which used a see-through HMD to present 3D graphics. However, only over the past decade has there been enough work to refer to AR as a research field.  In 1997, Azuma published a survey that defined the field, described many problems, and summarized the developments up to that point.  Since then, AR’s growth and progress have been remarkable.
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  How is itused?  Augmented reality is hidden content, most commonly hidden behind marker images, that can be included in printed and film media, as long as the marker is displayed for a suitable length of time, in a steady position for an application to identify and analyze it. Depending on the content, the marker may have to remain visible.
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  How does itwork?  Using a mobile application, a mobile phone's camera identifies and interprets a marker, often a black and white barcode image.  The software analyses the marker and creates a virtual image overlay on the mobile phone's screen, tied to the position of the camera.  This means the app works with the camera to interpret the angles and distance the mobile phone is away from the marker.
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  Applications Main classes ofapplications:  Medical  Manufacturing and repair  Annotation and visualization  Robot path planning  Entertainment  Military aircraft
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  Augmented Reality vs.Virtual Reality Augmented Reality  System augments the real world scene  User maintains a sense of presence in real world  Needs a mechanism to combine virtual and real worlds  Hard to register real and virtual Virtual Reality  Totally immersive environment  Senses are under control of system  Need a mechanism to feed virtual world to user  Hard to make VR world interesting
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  Implementation Framework  Hardware Tomake the system to be as lightweight and comfortable as possible, off-the-shelf hardware can be used to avoid the expense, effort, and time involved in building our own. • Software Software infrastructure Coterie, a prototyping environment that provided language-level support for distributed virtual environments.
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  Advantages of AR Can increase knowledge and information  People can share experiences with each other in real time over long distances  Games that provide an even more "real" experience  Things come to life on people's mobile  Form of escapism
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  Disadvantages of AR Spam and Security  Social and Real-Time vs. Solitary and Cached  UX (User Experience): Using AR can be inappropriate in social situations.  Openness: Other people can develop their own layers of content to display
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  Issues in AugmentedReality  Performance Issues Real time processing of images can be a challenge and often can slow down augmented reality systems.  Interaction Issues Users within a mixed environment because of augmented reality have difficulties interacting with the environment as normal.  Alignment Issues People working in an augmented reality are more sensitive to alignment errors. Proper calibration and alignment with the reference frame of the world is crucial.
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  CHALLANGES  Technological limitations User interface limitation  Social acceptance
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  CONCLUSION  Augmented realityis another step further into the digital age as we will soon see our environments change dynamically either through a Smartphone, glasses, car windshields and even windows in the near future to display enhanced content and media right in front of us.  This has amazing applications that can very well allow us to live our lives more productively, more safely, and more informatively.
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  References  www.studymafia.org  www.google.com www.wikipedia.com
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  K YOU