Visualizing a New Christchurch
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Visualizing a New Christchurch

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A talk given by Mark Bilinghurst on January 17th 2012 at the Christchurch Architecture Summer School about how to use Augmented Reality in Architecture and Urban Visualization, especially for the re

A talk given by Mark Bilinghurst on January 17th 2012 at the Christchurch Architecture Summer School about how to use Augmented Reality in Architecture and Urban Visualization, especially for the re

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Visualizing a New Christchurch Visualizing a New Christchurch Presentation Transcript

  • Visualising a New Christchurch Mark Billinghurst HIT Lab NZ University of Canterbury
  • Christchurch Earthquakes
  • http://www.rebuildchristchurch.co.nz/content/christchurch-building-demolition-map
  • Christchurch Before and After
  •   Professional solutions available   Autodesk REVIST, ESRI ArcGIS, Grass,etc
  • Emerging Novel User Interfaces  Immersive visualization  Multi-touch screens  Gesture interaction  Etc..
  • Limitations  Interface   Complex to use   Unintuitive interaction   2D display for 3D content  Context of Use   Remote visualization   Separation from the real world   Unable to show life-sized content
  • Augmented Reality  Combines Real and Virtual Images -  Both can be seen at the same time  Interactive in real-time -  Content can be interacted with  Registered in 3D -  Virtual objects appear fixed in space
  • Augmented Reality Examples  Put AR pictures here
  • AR and Architecture
  • AR and Archiecture  Enhanced Maps   AR overlay on printed material  Outdoor AR   In place visualization  Mobile AR   Urban Visualization
  • AR Markerless Tracking  OPIRA Library   Uses natural features for tracking   Fast, robust performance
  • Interactive AR Maps  Markerless tracking  3D model overlay  Gesture input
  • Enhanced City Plans  CERA – CCDU Plan   Using tablet to track off printed maps   Overlay 3D city models onto real maps
  • User Experience  Touch interaction  Pointing selection  Animated objects
  • Outdoor AR  Highly accurate outdoor AR tracking system   GPS, Inertial, RTK system   HMD  First prototype   Laptop based   2-3 cm accuracy
  • Image RegistrationAR Surveying Application
  • Mobile AR - Hardware GPS Example self-built working Antenna solution with PCI-based 3D graphics PCI 3D Graphics Board Tracker Controller PC104 Sound Card DC to DC Wearable Converter CPU Computer PC104 PCMCIA Battery GPS RTK Hard Drive correction Radio Serial PortsColumbia Touring Machine
  • 2008 - Location Aware PhonesMotorola Droid Nokia Navigator
  • Real World Information Overlay  Tag real world locations   GPS + Compass input   Overlay graphics on live video  Applications   Travel guide, Advertising, etc  Eg: Layar (www.layar.com)   iPhone, Android based, Public API released  Other companies   Wikitude, Metaio, AcrossAir, Tochnidot, etc
  • Layar – www.layar.com
  • 3DOn  Onsite Visualization Single Building   GPS + Compass input   Overlay graphics data on live video/Photos
  • HIT Lab NZ Outdoor AR Platform  Cross platform   Android, iPhone  3D onsite visualization   Intuitive user interface  Positions content in space   Camera, GPS, compass  Client/Server software architecture  Targeting museum guide/outdoor site applications
  • CityViewAR  Using AR to visualize Christchurch city buildings   3D models of buildings, 2D images, text, panoramas   AR View, Map view, List view   Available on Android market
  • User Experience  While walking in the real world people can see text, 2D images and 3D content on their own phones
  • Interface Design (1/2) Front face Browsing Interface Content AR View Detail View Title Screen Map View Image Gallery Instruction & List View Panorama Information
  • List ViewList of all assets
  • Map ViewIcons for buildings, viewpoints, panoramas
  • Building History Data
  • Photographic Images
  • Panorama Images360 degree photo bubbles
  • Augmented Reality View
  • Survey Results  Use of AR improved the user experience   But no difference between AR and non-AR usefulness  Favourite features   AR and Panorama views most popular   Users also enjoyed having rich data available  Main Problems (50% reported no problems)   UI design not intuitive (24%)   System not responsive (16%)
  • Time Usage  Percentage time spent in different views   AR used more then 50% of time when available
  • Result - Distance Traveled   As a measure of active exploration   M=96.28 meters (SD=83.85, 0~315 meters)Mann-Whitney U-test U = 167.00, p = 0.18 With AR Without AR
  • Areas for Improvement  Outdoor AR tracking   Reduce tracking errors  User interface design   Make options more obvious  Make system more responsive   Some lag in loading content  Touch input   Responding to unintended touches
  • AR Urban Design Tool (2012)  CERA CCDU Application   Enhanced CityViewAR application  Add VR view mode   3D model viewing/interaction  Add concept models of buildings   Multiple buildings at single site  Client/Server architecture   Support for user generated feedback
  • VR View
  • Differing Views  List View, Content View, Map View
  • Interaction   Touch interaction   Information filtering   Building information   Model panning, zoom, rotation
  • iceFest (2012)  Outdoor AR for Antarctic Experience  Visit Antarctica in real world  Using handheld tablet
  • Map Views
  • Content Views
  • AR View  View of ice superimposed over real world
  • Panorama  Immersive 360 panorama
  • Feedback  A = Satisfying, B = Ease to use  C = Useful for learning, D = Better learning than internet
  • Looking to the Future
  • Next Steps  Subsurface Visualization   See underground infrastructure  User evaluation   Architects, Urban Designers, Public  Develop authoring tool   Web-based content management system  Improve technology   Tracking, 3D rendering
  • Subsurface Visualization  Using AR to view underground infrastructure
  • Client/Server Architecture Web Interface Add models Web application java and php server Android application Database server Postgres
  • Web based Outdoor AR Server  Web interface   Showing POIs as Icons on Google Map  PHP based REST API   XML based scene data retrieval API   Scene creation and modification API   Android client side REST API interface
  • BASIC VIEW
  • PERSONAL VIEW
  • Augmented Reality 2.0 Infrastructure
  • Leveraging Web 2.0  Content retrieval using HTTP  XML encoded meta information   KML placemarks + extensions  Queries   Based on location (from GPS, image recognition)   Based on situation (barcode markers)  Syndication   Community servers for end-user content   Tagging  AR client subscribes to data feeds
  • Conclusions•  AR allows for information overlay in place•  CityViewAR provides pre earthquake viewing•  Opportunities for on-going development•  Important research problems need to be solved – Wide area tracking – User experience – Social networking – Etc..
  • Collaborators  Jason Mills (PVI)   Panoramas, 3D models  Historic Places Trust   Pre-1950 building information  Christchurch City Council   Statements of Significance  CEISMIC   Digital content
  • More Information•  Mark Billinghurst –  mark.billinghurst@hitlabnz.org •  Website –  www.hitlabnz.org