detecting barriers to movement geo-tracking video … · detecting barriers to movement...
TRANSCRIPT
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DETECTINGBARRIERSTOMOVEMENT
GEO-TRACKINGVIDEO APPROACH
SwissMobilityConference29June 2017,Lausanne
Dr.GuillaumeDrevon,LASUR,EPFLDr.OlivierKlein,LISER
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Issues1
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Barriertomovement
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Potential barriers
Immaterialbarriers
Mentalbarriers
Placeperception
Perceptionoftimeanddistance
Placeexperience
Materialbarriers
Naturalbarriers
Hydrography
Topography
Anthropic barriers
Railways
Highways
Buldings
Traffic
Random events
Potentialbarriers
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Some examples
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Howtodetectbarrierstomovement?
Andusethesedetectedbarriersintheframeofinterviews?
Methodologicalissues
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Toolsandmethodology2
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Detectingbarrierstomovement
Weneed:
• Indicator1:individual’sroute
• Indicator2:speed
• Indicator3:eventsontheroute
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Advantages:
•Routesdetecting•Spatialprecision•Speed
Inconvenients:
•Dataanalysis•Samplesize•Autonomy•Intrusiveprotocol
GPStracking
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Route
• Indicator1:individual’sroute
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Speed
• Indicator2:speed
+
-
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We need:
• Indicator 1:individual’s route
• Indicator 2:speed
• Indicator 3:events ontheroute
Detectingbarrierstomovement
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On-boardvideo
"ViewFromTheRoad"(1958)- KevinLynch
Source:MITLibrairies,MITVidéoProductions
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Safetydevice:
• Privateuses• Professionaluses
Source:©Roadeyescam
On-boardvideo
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Sportdevice:
• Extreme sports
Source:©Contour
On-boardvideo
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VideoandGPStracking
+ =
GPScamera
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We need:
• Indicator 1:individual’s route
• Indicator 2:speed
• Indicator 3:events ontheroute
Ø Geo-visalisation device forinterviewsprotocol
Detectingbarrierstomovement
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Geovisualisationdevice
Combination:
• Audio• Video• Interactivity
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Datastructure3
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Datastructure
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Datastructure
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Datastructure
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Datastructure
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Prototype4
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Interface
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• Video
Interface
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• Interactivemap
Ø Individuallocation
Ø Spatialvideo-line
Ø Layerscontrol
Interface
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• Speedvariation
ØReductioninspeedareas
Interface
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• Barriers
Ø Videosequencesassociatedwithbarriers
Interface
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Demo4
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Conclusionsandperspectives
•Barriersdetectiontomovement•Understandingofstrategiesfacingbarriers
•Intrusiveprotocol•Shiftingtootherstransportmodes•Non-automaticanalysis
Perspectives:
•Interviewsbasedonasmallsample•Testingwithotherstransportmodes
Useothersconnectedtools:
•GoogleGlass•Eye-Tracker