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augmentedrealityppt.pptx

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augmentedrealityppt.pptx

  1. 1. 1 Augmented Reality Prepared by: Khyati Ganatra (12CE082)
  2. 2. Topics discussed AugmentedReality AugmentedRealitySystem HowitWorks Displaytechniques AR vsVR Technology Applications&Examples Feb4, Spring 2002 CS 7497 2
  3. 3. What is Augmented Reality? Acombinationofareal sceneviewedbyauser andavirtualscene generatedbyacomputer thataugmentsthescene withadditional information. 3
  4. 4. 4 AnAR systemadds virtualcomputer- generatedobjects, audioandother senseenhancements toareal-world enviornmentinreal time.
  5. 5. 5 What is the Goal of AR? Toenhanceaperson’sperformance andperceptionof theworld But,whatistheultimategoal????
  6. 6. 6 The Ultimate Goal of AR Createasystemsuchthatauser CANNOTtellthedifferencebetween therealworldandthevirtual augmentationof it.
  7. 7. 7 Augmented Reality vs. Virtual Reality AugmentedReality Systemaugmentsthe realworld scene Usermaintainsa senseof presencein real world Needsamechanism tocombinevirtual andreal worlds VirtualReality: Totallyimmersive environment Visualsensesare undercontrolof system(sometimes auraland proprioceptivesenses too)
  8. 8. Miligram’s Reality- Virtuality Continuum MixedReality (MR) Real Environmen t Virtual Environment Augmented Reality(AR) Augmented Virtuality(AV) Miligramcoinedtheterm“AugmentedVirtuality”toidentify systemswhicharemostlysyntheticwithsomerealworld imageryaddedsuchastexturemappingvideoontovirtual objects. 8
  9. 9. This is how AR works PickARealWorldScene AddyourVirtualObjectsinit. DeleteRealWorld Objects NotVirtualRealitysince Environment Real. 9
  10. 10. DISPLAY Head-mounted Display(HMD) – device paired to a headset such as a harnessor helmet Eye Glasses – eyewearthatemploys cameras to intercept the real world view and re-display it's augmented vie w through the eye pieces 10
  11. 11. DISPLAY(cont..) Contact Lenses – Contain the elements for display embedded into the lens including integratedcircuitry ,LEDs andan antenna for w ireless communication. – Under development Virtual Retina Display – a personal display device under development . – a display is scanneddirectly onto 11
  12. 12. DISPLAY(cont..) Handheld asmalldisplaythatfitsinauser'shand. Portable Ubiquitous Physicalconstraintsof theuserhavingtoholdthedevice Distorting effect Spatial makes use of digital projectors to display graphical information. userisnotrequiredtocarryequipmentorwearthe display overtheir eyes. canbeusedbymultiplepeopleatthesametimewithout eachhavingtowearahead-mounteddisplay . 12
  13. 13. 13 Display Technologies Monitor Based HeadMounted Displays: – Video see-through – Optical see-through
  14. 14. Monitor Based Augmented Reality Simplest available Littlefeelingof beingimmersedin environment 14
  15. 15. Optical see-through HMD 15
  16. 16. Video see-through HMD 16 Feb4, Spring 2002 CS 7497
  17. 17. 17 Video Composition for Video see-through HMD Chroma-keying – Usedforspecial effects – Backgroundof computergraphicsimagesis settoaspecificcolor – Combiningstepreplacesallcoloredareas withcorrespondingpartsfrom video Depth Information – Combinerealandvirtualimagesbyapixel- by-pixeldepth comparison
  18. 18. 18 Advantages of Video see-through HMD Flexibilityincompositionstrategies Widefieldof view Realandvirtualviewdelayscanbe matched
  19. 19. 19 Advantages of Optical see-through HMD Simplicity Resolution Noeye offset
  20. 20. 20 Applications Medical Entertainment MilitaryTraining Engineerin g Design Roboticsand Telerobotics Manufacturing, Maintenance,and Repair Consumer Design Hazard Detection Audio
  21. 21. Medical 21
  22. 22. Entertainment 22
  23. 23. Defence 23
  24. 24. Education 24
  25. 25. THANK YOU 25

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