Collaborative Mixed Reality Collaborative Mixed Reality Visualization of an Visualization of an Archaeological Excavation Archaeological Excavation Hrvoje Benko Hrvoje Benko Department of Computer Science Department of Computer Science Columbia University Columbia University MIT talk – January 12, 2005 MIT talk – January 12, 2005
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Collaborative Mixed Reality Visualization of an Archaeological Excavation Hrvoje Benko Department of Computer Science Columbia University MIT talk – January.
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Collaborative Mixed RealityCollaborative Mixed Reality Visualization of an Archaeological Visualization of an Archaeological
ExcavationExcavation
Hrvoje BenkoHrvoje BenkoDepartment of Computer ScienceDepartment of Computer Science
Columbia UniversityColumbia University
MIT talk – January 12, 2005MIT talk – January 12, 2005
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Multidisciplinary TeamMultidisciplinary Team
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MotivationMotivation
►Excavation is destructive and Excavation is destructive and physically “unreconstructable” processphysically “unreconstructable” process
►Need to preserve as much data as Need to preserve as much data as possible for analysispossible for analysis
►Data interpretation happens off-siteData interpretation happens off-site►Current tools focus on 2D data and do Current tools focus on 2D data and do
not incorporate 3D informationnot incorporate 3D information►Many experts—collaboration is a must!Many experts—collaboration is a must!
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Archaeological Excavation at Archaeological Excavation at Monte Polizzo, Sicily, Summer Monte Polizzo, Sicily, Summer
20032003Ian Morris, Director (Stanford University)Ian Morris, Director (Stanford University)
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Working in the field!Working in the field!
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Meshed 3D Model (13 scans)Meshed 3D Model (13 scans)
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We have a 3D site model, We have a 3D site model, now what?now what?
RealReal VirtualVirtual
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High Resolution Images
DrawingsField Notes
Panoramic Images
Videos
GIS Data
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High Resolution Images
DrawingsField Notes
Panoramic Images3D Object Models
3D Site Model Videos
GIS Data
Database
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Two ProblemsTwo Problems
►How to combine all this data in one How to combine all this data in one seamless environment?seamless environment?
►How to make it easy to interact with?How to make it easy to interact with?
►Movable high-Movable high-resolution insetresolution inset Tracked by Tracked by
DiamondTouchDiamondTouch Projection Projection
suppressed in its suppressed in its boundsbounds
Physical magic Physical magic lenslens
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Tabletop InteractionTabletop Interaction
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User FeedbackUser Feedback
►Overall very positive reactionOverall very positive reaction►Archaeologists benefited from:Archaeologists benefited from:
Temporal–Spatial connectionTemporal–Spatial connection Aggregated collection of all dataAggregated collection of all data Accurate 3D modelAccurate 3D model Simple touch-based interactions Simple touch-based interactions
►Potential for increased collaborationPotential for increased collaboration
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Room for ImprovementRoom for Improvement► Reduce wiresReduce wires► Reduce weight Reduce weight ► Eye occlusion hinders communication Eye occlusion hinders communication ► Missing data:Missing data:
More objects, features, notes and picturesMore objects, features, notes and pictures More scans during excavation (time-lapse spatial More scans during excavation (time-lapse spatial
Virtual scale measure (implemented since)Virtual scale measure (implemented since) Variable site model scalingVariable site model scaling Improved selection in world-in-miniatureImproved selection in world-in-miniature
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Current and Future WorkCurrent and Future Work
► Larger Site:Larger Site: Summer 2004 - Thulamela, South Summer 2004 - Thulamela, South
AfricaAfrica
► Personalized user experience Personalized user experience based on expertisebased on expertise
► Environment managementEnvironment management
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AcknowledgmentsAcknowledgments► Special thanks to: Special thanks to:
Peter Allen, Alejandro Troccoli, and Ben Smith (CU Robotics Peter Allen, Alejandro Troccoli, and Ben Smith (CU Robotics Lab)Lab)
Ian Morris and Trinity Jackman (Stanford Archaeology Ian Morris and Trinity Jackman (Stanford Archaeology Center) Center)
Lynn Meskell and James Conlon (CU Dept. of Archaeology) Lynn Meskell and James Conlon (CU Dept. of Archaeology) Sajid Sadi and Avinanindra Utukuri (P5 glove) Sajid Sadi and Avinanindra Utukuri (P5 glove) Shezan BaigShezan Baig Mitsubishi Electric Research Labs (DiamondTouch table)Mitsubishi Electric Research Labs (DiamondTouch table) Alias Systems Alias Systems Microsoft Research Microsoft Research
► Funded in part by NSF ITR Grants IIS-0121239 and Funded in part by NSF ITR Grants IIS-0121239 and IIS-00-82961, and Office of Naval Research IIS-00-82961, and Office of Naval Research Contracts N00014-99-1- 0394, N00014-99-1-0683, Contracts N00014-99-1- 0394, N00014-99-1-0683, N00014-99-1-0249, and N00014-04-1-0005.N00014-99-1-0249, and N00014-04-1-0005.