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Augmented reality

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Augmented Reality
Augmented Reality
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Augmented reality

  1. 1. AUGMENTED REALITY AN PROJECT IDEA PREPARED BY: ABHISEK PADHI (TECHNIKALY)
  2. 2. WHAT IS AUGMENTED REALITY ? In Simple Words… • Augmented reality is technology that combines virtual reality with the real world. • The current world of augmented reality deals with live video imagery which is digitally enhanced with computer generated graphics.
  3. 3. A Virtual World simulating a real world model
  4. 4. BUT… THAT’S NOT AUGMENTED REALITY
  5. 5. Wikipedia SPEAKS ... AUGMENTED REALITY (AR) :- is a live, direct or indirect, view of a physical, real-world environment whose elements are augmented by computer-generated sensory input such as sound, video, graphics or GPS data.
  6. 6. IS AUGMENTED REALITY A NEW TECHNOLOGY?
  7. 7. Live Telecast Of Cricket In our television Uses: AUGMENTED REALITY
  8. 8. Live Football Matches Uses Virtual marking on the field made by computer which we see in our television
  9. 9. • Wh i l e t h e s ma r t p h o n e d o e s n 't h a v e t h e c o mp u t i n g p o w e r f o r ma n y a u g me n t e d r e a l i t y a p p l i c a t i o n s , I T I S I N T R O D U C I N G T H E WO R L D T O T H I S C O N C E P T
  10. 10. TECHNOLOGY REQUIRED FOR AUGMENTED REALITY (AR)
  11. 11. HARDWARE • The main hardware components for augmented reality are: p r o c e s s o r , d i s p l a y , s e n s o r s a n d i n p u t d e v i c e s . • These elements, specifically C P U , d i s p l a y , c a me r a and M E M S sensors such as a c c e l e r o me t e r , G P S , solid state compass are often present in modern smartphones, which make them prospective AR platforms.
  12. 12. An iPhone Showing an Augmented Reality application
  13. 13. DISPLAYS There are essentially 3 different kinds of displays of augmented reality: • THE HEAD MOUNTED DISPLAY (HMD) is worn on the head or attached to a helmet. This display can resemble goggles or glasses • THE HANDHELD DEVICE is a portable computer or mobile smartphone such as the iPhone. • SPATIAL DISPLAY makes use of projected graphical displays onto fixed surfaces.
  14. 14. • •
  15. 15. The Most popular smartphone the iPhone is a brilliant example of smartphone deploying AR apps.
  16. 16. TRACKING •
  17. 17. INPUT DEVICES •
  18. 18. COMPUTER • T h e c o m p u t e r a n a l y z e s t h e s e n s e d v i s u a l a n d o t h e r d a t a t o s y n t h e s i z e a n d p o s i t i o n a u g m e n t a t i o n s .
  19. 19. TRACKING •
  20. 20. INPUT DEVICES •
  21. 21. SOFTWARE AND ALGORITHMS
  22. 22. ALGORITHM
  23. 23. • A key measure of AR systems is how realistically they integrate augmentations with the real world. • The software must derive real world coordinates, independent from the camera, from camera images. • That process is called image registration.
  24. 24. •Image registration uses different methods of computer vision, mostly related to video tracking. Many computer vision methods of augmented reality are inherited from visual odometry.
  25. 25. Usually those methods consist of two parts…
  26. 26. First detect interest points, or fiduciary markers, or optical flow in the camera images. First stage can use feature detection methods like corner detection, blob detection, edge detection or thresholding and/or other image processing methods.
  27. 27. T h e S E C O N D S T A G E restores a real world coordinate system from the data obtained in the first stage. S o m e m e t h o d s a s s u m e o b j e c t s w i t h k n o w n g e o m e t r y (o r f i d u c i a r y m a r k e r s ) p r e s e n t i n t h e s c e n e . I n s o m e o f t h o s e c a s e s t h e s c e n e 3D s t r u c t u r e s h o u l d b e p r e c a l c u l a t e d beforehand. If part of the scene is unknown simultaneous localization and mapping (S L A M ) can map relative positions. If no information about scene geometry is available, structure from motion methods like bundle adjustment are u s e d . M a t h e ma t i c a l me t h o d s used in the second stage include projective (e p i p o l a r ) g e o me t r y , geometric algebra, rotation representation with exponential ma p , K a l m a n and particle filters, nonlinear optimization, robust s t a t i s t i c s .
  28. 28. SOFTWARE
  29. 29. IN COMPUTER • ARToolKit • FLARToolkit • Total Immersion • Metaio, junaio IN MOBILE • Wikitude • Layar Etc…
  30. 30. TYPES OF AUGMENTED REALITY
  31. 31. GPS AND COMPASS TECHNOLOGY  Found in smartphones and tablets  Uses devices' GPS, compass features and high-speed wireless networks Allows more complex applications of Augmented Reality. Main Attraction: Limitation:  Provides useful local web-content information and added services in 2D format at the geo-location of the user  Fairly imprecise due to current inaccuracy of the GPS technology
  32. 32. MARKER BASED  Marker-based AR uses a camera and a visual marker to determine the center, orientation, and range of its spherical coordinate system.  Most of the time, the applications using markers are based on open source technology.  AR Toolkit is the first fully-featured toolkit for marker- based AR  It has the advantage to be easily affordable but sometimes it is not supported and fairly weak.  Total Immersion provides the world’s most widely used commercial augmented reality platform.
  33. 33. TRACKING USING MARKERS
  34. 34. EXAMPLES OF MARKERs
  35. 35. DIFFERENCE… A QR Code A Marker used For tracking in AR
  36. 36. MARKER LESS TRACKING  This is currently one of the best technology for tracking  It performs active tracking and recognition of real environment on any type of support without using special placed markers.  Allows more complex applications of Augmented Reality.
  37. 37. EXAMPLES…
  38. 38. APPLICATIONS
  39. 39. Augmented Reality Navigation Industrial Design Learning Architecture Archaeology Tourism and sightseeing In an office Sports & Entertainment Commerce Medical
  40. 40. RETAIL
  41. 41. ARCHITECTURE and DESIGN
  42. 42. FUTURE OF AUGMENTED REALITY
  43. 43. IN OUR OPINION …
  44. 44.  
  45. 45. .
  46. 46. NOTABLE RESEARCHERS • Ivan Sutherland invented the first AR head-mounted display at Harvard University. IVAN SUTHERLAND
  47. 47. • Steven Feiner, Professor at Columbia U n i v e r s i t y , i s a l e a d i n g p i o n e e r o f a u g m e n t e d r e a l i t y , a n d a u t h o r o f t h e f i r s t p a p e r o n a n A R s y s t e m p r o t o t y p e , KARMA (the Knowledge-based Augmented Reality Maintenance Assistant), along with Blair MacIntyre and Doree Seligmann STEVEN FEINER
  48. 48. • L.B. Rosenberg developed one of the first known AR systems, called Virtual Fixtures, while working at the U.S. Air Force Armstrong Labs in 1991, and published first study of how an AR system can enhance human performance
  49. 49. • Dieter Schmalstieg and Daniel Wagner jump s t a r t e d t h e f i e l d o f A R o n m o b i l e p h o n e s . T h e y d e v e l o p e d t h e f i r s t m a r k e r t r a c k i n g s y s t e m s f o r m o b i l e p h o n e s a n d P D A s . Dieter Schmalstieg
  50. 50. THANK YOU It’s a TechniKaly Production Follow TechniKaly on: Twitter || Facebook || Google Plus || Rss

Hinweis der Redaktion

  • Explain it !
  • Explain how ar is used in navigation,industrial design,…..explain each application in separate slides

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