Augmented Reality
-
Upload
sanyasi-raju-korimilli -
Category
Technology
-
view
52 -
download
0
Transcript of Augmented Reality
![Page 1: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/1.jpg)
Augmented RealityK.S. RAJU CSE-A
![Page 2: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/2.jpg)
Agenda1) What is Augmented Reality?2) Augmented Reality vs Virtual Reality.3) AR System.4) Requirements.5) Types of Augmented Reality.6) Key issues of AR.7) Applications of AR.
![Page 3: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/3.jpg)
What is Augmented Reality? Combination of two environments
i. the real environment viewed by the user.
ii. a virtual environment generated by the computer.
+ =
![Page 4: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/4.jpg)
Term “Augmented Reality”
Real environment is augmented by means of virtual objects
Supplements reality, instead of completely replacing it
Image-enhanced by
inserting additional information.
removing the unnecessary region.
Why research this?
Enhances person’s perception.
Enhances person’s performance.
Provides a user with
work efficiency, convenience, interesting effects, and information in industry, education, entertainment, etc.
Virtual Reality
![Page 5: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/5.jpg)
Augmented Reality in a nut shell:
![Page 6: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/6.jpg)
Augumented Reality vs Virtual RealityVirtual Reality Augmented Reality
A user is fully immersed in Virtual Reality. Inserting virtual objects into real environment.
![Page 7: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/7.jpg)
AR and VR statistics:
Realism-Modeling-Interaction
![Page 8: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/8.jpg)
AR System Requirements of AR system
Blending real and virtual
Real-time interaction
Registration between 3D and 2D
Portability for wearable AR
Non-AR system:
Composition in film (ex. “Jurassic Park”)
Photorealistic virtual object
But not interactive media
2D virtual overlay (ex. “captions in TV”)
Interactive in real-time
But not combined with the real world in 3D
![Page 9: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/9.jpg)
Requirements
![Page 10: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/10.jpg)
Types of Augmented Reality
Device-based AR:
Uses hardware equipment.
Acquiring position data from position tracker, magnetic sensors, GPS, etc.
Including the camera(s).
Vision-Based AR:
Only uses a camera or multiple cameras
Estimating user’s position from input images
![Page 11: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/11.jpg)
Device based AR: Architecture and Working of Device based AR:
Image Capture
Camera Frame
Grabber
Display-Out
Monitor or HMD
AR Processing
Synthesis
Virtual Object
Rendering
Positioncalculation
Data acquisition
Measuring instruments
![Page 12: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/12.jpg)
Vision based AR: Architecture and Working of Vision based AR:
Display-Out AR Processing
Image Capture
Camera Frame
Grabber
Feature extraction& tracking
Monitor or HMD
SynthesisVirtual Object
Rendering
CameraCalibration
Buffer
![Page 13: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/13.jpg)
Key technical issues in AR 3D Modeling
generates a virtual object to be inserted
Display device
displays mixed scenes with real and virtual environments
Calibration
estimates camera parameters
calculates transform between real and virtual world coordinates
Tracking
detects user’s position and orientation chases feature points for vision based tracking
Registration
merges a virtual object into real environment exactly
![Page 14: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/14.jpg)
3D Modelling 3D model design tools
ex) Mayatm, SoftImagetm, …
3D reconstruction from images
Range Finder (Laser scanner)
![Page 15: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/15.jpg)
Display Devices
Optical see-through Head Mounted Device(HMD)
Micro optic Head Mounted Device (HMD)
![Page 16: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/16.jpg)
Calibration Calculate the camera’s parameters
intrinsic(focal length, principal points, axes’ scale/skew) and extrinsic(position, direction) parameters
Camera Calibration Toolbox for Matlab
http://www.vision.caltech.edu/bouguetj/calib_doc/
![Page 17: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/17.jpg)
Tracking & Registration Tracking
Report the locations and orientations of the user and the surrounding objects in the environment.
continually matched with the user’s real-world andthe computer generated virtual-world.
Registration
Virtual and real worlds must be properly aligned.
If not
compromises illusion that the two coexist
prevents acceptance of many applications
![Page 18: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/18.jpg)
Application of AR in Entertainment
![Page 19: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/19.jpg)
Application of AR in Marketing
![Page 20: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/20.jpg)
Application of AR by TOYOTA Automobiles
![Page 21: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/21.jpg)
Application of AR in Games
![Page 22: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/22.jpg)
Application of AR in Navigation
![Page 23: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/23.jpg)
Application of AR in Automobile, Medical and Military
![Page 24: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/24.jpg)
Application of AR in Technology and Fiction
![Page 25: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/25.jpg)
Application of AR in Social Networking
![Page 26: Augmented Reality](https://reader034.fdocuments.net/reader034/viewer/2022042716/55aa83cc1a28ab1f1c8b4646/html5/thumbnails/26.jpg)
Thank you.