Augmented reality


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A Power point presentation on agumented reality

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  • hi , this is bhanu prakash . i'm havin an seminar in my college and i've selected AR as my topic, and i've prepared a ppt but i still need to verify it with yours also so that i could make any changes if needed. so could you mail me your ppt for checking mine.
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Augmented reality

  1. 1. Welcome to augmented world Augmented reality Anugya shukla
  2. 2. outline <ul><li>Introduction </li></ul><ul><li>Understanding AR. </li></ul><ul><li>Motivation </li></ul><ul><li>Working </li></ul><ul><li>Application </li></ul><ul><li>Problem in AR </li></ul><ul><li>Sensational technology </li></ul><ul><li>Conclusion </li></ul>
  3. 3. Introduction <ul><li>augmented reality  (AR) is a term for a live direct or indirect view of a physical, real-world environment whose elements are  augmented  by  computer-generated  sensory input, such as sound or graphics. </li></ul>
  4. 4. Understanding A.R <ul><li>AR is the variation of VR. </li></ul><ul><li>VR technology completely immerse a user inside a synthetic environment while immersed user can not see the real world around him. </li></ul><ul><li>In contrast the user allow the user to see the real world with virtual object superimposed upon or composite with real world. </li></ul>
  5. 5. Understanding AR <ul><li>Virtual reality Agumented reality </li></ul>
  6. 6. Understanding AR <ul><li>AR supplements reality, rather than completely replacing it. It creates the illusion the virtual and real object co exist in the same place. </li></ul><ul><li>AR can be though of as middle ground between VR(completely synthetic) and telepresence (completely real). </li></ul>
  7. 7. Motivation <ul><li>AR enhances user perception interaction with real environment. </li></ul><ul><li>The virtual objects display information that user can not detect directly with his own sense. </li></ul><ul><li>The information conveyed by the virtual helps user to perform real task. </li></ul>
  8. 8. Working <ul><li>AR system tracks the position and orientation of users head so that overlaid material can be aligned. </li></ul><ul><li>There are three main components need to AR work </li></ul><ul><li>*Head mounted display (HMD) </li></ul><ul><li>* tracking system. </li></ul><ul><li>*mobile computing power. </li></ul>
  9. 9. Working <ul><li>HMD (HEAD MOUNTED DESIGN) </li></ul><ul><li>Monitor allows us to see text and graphics generated by computer </li></ul><ul><li>Head mounted system enable us to view graphics and text related by agumented system. </li></ul><ul><li>The two basic types of HMD </li></ul><ul><li>1:Optical see </li></ul><ul><li>2:Video see </li></ul>
  10. 10. Working <ul><li>Optical see through HMD </li></ul>
  11. 11. Working <ul><li>VIDEO SEE THROUGH </li></ul>
  12. 12. Working <ul><li>Tracking orientation </li></ul><ul><li>Tracking system in agumented reality is to know user location in reference to his surrounding. </li></ul><ul><li>tracking is basically of two types </li></ul><ul><li>1:indoor tracking </li></ul><ul><li>2:outdoor tracking </li></ul>
  13. 13. Working <ul><li>Indoor tracking </li></ul><ul><li>Tracking is easier in small spaces than in large spaces. Trackers typically have two parts: </li></ul><ul><li>One worn by the tracked person or object and other built into the surrounding environment, usually within the same room. </li></ul><ul><li>In optical trackers, the tracked users can wear the sensors, and targets can be fixed to the ceiling. By calculating the distance to reach visible target, the sensors can determine the user's position and orientation. </li></ul>
  14. 14. Working <ul><li>OUTDOOR TRACKING </li></ul><ul><li>1: Head orientation is determined with hybrid tracker that combines gyroscopes and accelerometers with magnetometers that measure the earth's magnetic field. </li></ul><ul><li>2:For position tracking we use GPS system. </li></ul><ul><li>3:A GPS receiver can determine its position by monitoring radio signals from navigation satellites. GPS receivers have an accuracy of about 10 to 3meters. </li></ul><ul><li>4:User can get better result with a technique known as differential GPS. In this we have GPS receiver and transmitter. </li></ul>
  15. 15. Working <ul><li>Mobile computing </li></ul>For a wearable augmented realty system, ther is still not enough computing power to create stereo 3-D graphics. So researchers are still researching on it .
  16. 16. Application <ul><li>Medical </li></ul><ul><li>manufacturing and repair </li></ul><ul><li>Instant Information </li></ul><ul><li>aircraft </li></ul>
  17. 17. Applications <ul><li>Medical </li></ul>
  18. 18. Application <ul><li>Maintenance and repair </li></ul>
  19. 19. Application <ul><li>Instant Information </li></ul>
  20. 20. Application <ul><li>Instant Information </li></ul>
  21. 21. Application <ul><li>Aircraft </li></ul><ul><li>By applying in front of mirror of aircraft </li></ul>
  22. 22. Problem in AR <ul><li>Registration </li></ul><ul><li>* One of the most basic problem in AR. </li></ul><ul><li>* Object in the real and virtual world have to properly aligned with each other. </li></ul><ul><li>* Registration error may also cause motion sickness. </li></ul><ul><li>* AR requires much more accurate registration system </li></ul><ul><li>* These errors are difficult to control . </li></ul>
  23. 23. Advance AR: Sensation to technology <ul><li>Advance AR is the SIXSENSE AR </li></ul><ul><li>Research work is going on. </li></ul>
  24. 24. CONCLUSION <ul><li>AR is new field since(1993) and it is far behind VR in maturity. </li></ul><ul><li>First developed HMD based AR SYSTEM probably be in the application of aircraft manufacturing. </li></ul><ul><li>A break through is required in real time HMD tracking in the outdoor at the accuracy required for AR for this technology to move ahead rapidly. </li></ul><ul><li>AR has great future as it promises better navigation and interaction with real and virtual world. </li></ul>
  25. 25. Any Questions