Paul Bouzide
Satisfying Navigation-To-Thing and Context-Focused “Around Me” Use Cases
Context and detail precedent: vehicle navigation use case
A familiar problem of appropriate context in vehicle navigation
What should be suppressed?What should be emphasized?
Some 3D solutions for vehicle navigation
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• Note inclusion of non-motorway and non-ramp road elements in scene.
• Note inclusion of terrain, bridge guards and support columns in scene.
• Note removal of irrelevant signage from scene.
Context driven detail: pedestrian-indoor-transit navigation
Ever more critical for these higher feature and geometry volumesEven at pedestrian velocities and cognitive attention profiles
“Byte sized content right sized for each user’s individual context”
In what situations?For which kinds of users?Key context information:•Location/heading•Navigation Intent
What should be enhanced?What should be suppressed?Where in the service chain?
But maximum LOD depends on the device and the network
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Fully apart from the question of detail enhancement or suppression…
“Byte sized content”…
End user context also includes•Device capabilities•Network performance and cost
Geospatial features and properties aren’t staticEverything changes…
Walls and fixturesColor schemes/decorLocal addressing schemesSignageSpace occupancy…
Any change can matter cruciallyto the contextual behavior of the appto maintaining believability, realism
Most changed features or propertiesexist in relation to otherscan depend on prior changes for consistency
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Approaches:•Partition replacement•Feature property updates•Geo/topo update transactions
Low change latency & contextual detail app service chain
MobileNetwork
Mobile Device
Application(Client)
Mobile Device
Application(Server)
GeospatialContent
Transformation/Aggregation
GeospatialContentCreator
GeospatialContentCreator
GeospatialContentCreator
GeospatialContentCreator
ContentDeliveryNetwork
Location, cameraother user &
device context
Processed context,feature & scene
requests/subscriptions
Usage analytics,user observations,<product requests>
Mobile Device
Application(Client)
Mobile Device
Application(Client)
Mobile Device
Application(Client)
Mobile Device
Application(Client)
Data APIsPub/Sub
App APIsStreaming
…“Right sized” contextualizedscenes, styledvector features
Contextcategorized
located scenes& features
Differentiated & componentized new/updated
vector feature sets
…
Sens
or O
bser
vatio
ns
Vector feature model creation from observations
Context-aware customization, filtering, styling and rendering
Context-aware service integration, interactive visualization, selection
Model transformation for contextual assembly,
styling, rendering
What locations have a content creation business case?Build out locations that have
High foot traffic density
Time-criticality of an effective navigation Ux
Generators of economic activity
Some good candidatesMultimodal transit hubs
- Airports, rail/transit stations, …
Retail clusters- “Big box” + satellites, malls, urban retail zones
Tourism, mass entertainment, mass business- Museums, stadiums, theaters
Businesses and Academia- Convention centers, office complexes, university campuses, …
Emergency related - Hospitals, Zones of security monitoring/enforcement
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Varying LODs across geographies:•How does this affect navigability?•What are the key differences between these location types
What contributes to this content creation business case?Partnering with existing mobile device/application ecosystems
Application geospatial “fuel”
Federate collection and maintenance with pluggable aggregationBuilding complex developers/management
Governments, transit authorities
Building architects/contractors
Adjuncts to road vehicle navigation (“integrated walk, ride, drive”)Leverage and integrate with vehicle-bound applications and content
Also taxi, bus, logistics fleets
Integrate usage analytics for lower content maintenance costAlternatives to supply-based advertising for end user “desire fulfillment”And of course location+context based advertising doesn’t go away…
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Technology Enablers: APIs and interoperable standards
Relevant standards:•WMS, WFS, GML, KML•Eventing•WPS•W3DS, WVS, X3D•SVG, PNG, JPG, JPG2K
Other key technology enablers
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Critical needs:•Effective indoor positioning•Interoperable micro location referencing•Interoperable pluggable space topologies
Indoor micro-positioningLow tens of cm
Radio (WiFi, Bluetooth, RFID, NFC)
Image recognition
IoT “massive triangulation”
Pluggable SpacesRecursively subdivided spaces
Homogeneity of LOD within a spaces
Stable location identity at integration points
Change-based feature publicationLow latency observation to end user
Pub/sub SDI eventing
Parallel processing architecturesObservation processing, data transformation, styling/rendering
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