Meeting minutes
Background
Christine: (provides the background so far)
… discovery is the key
… to have broader discussion on discovery for AR today
McCool: (provides logistics notes)
… the minutes will be public
… holding as an IG meeting under the use case TF
… (introduction of McCool himself as the co-Chair for the WoT WG/IG)
(and the others also introduce themselves)
Christine
Tony
Linda
Rob
Joshua
Ted
Joshue
Kaz
Jan-Erik
Intro
McCool: this meeting is specifically discovery for AR
… focus on AR use cases
… and identify what the next steps would be
… would provide technical background information
… any comments before that?
(none)
McCool: (shows the TPAC breakout slides)
McCool: [WoT Goal and Use Cases]
… [Current Work Items]
… have published several specs
… working on a new Charter
… Discovery is a process to access metadata
… not just local area broadcasting but also internet search
… considering multi-process approach
… including geospatial awareness
… finding out where the related sensors are, etc.
… [Thing Description]
… describes information on devices
… including metadata
… one of the metadata is location
… might be static but could be dynamic
… e.g., if the device is a vehicle
… also not just position but acceleration, direction, etc., can be included
… [Geolocation]
… did some prototyping
… quickly shows them
McCool: (shows example TDs)
… longitude, latitude, etc.
… accuracy and heading
… might have property to distinguish the positions
… links to associate entities
… need to have some method to handle this
Christine: discussion for now?
McCool: let's have discussion during the second half
… 24mins past now
Christine: introducing open AR cloud would make sense
Open AR Cloud
Jan-Erik: (starts to share the screen)
… AR-Cloud, Spatial Discovery & WoT
… open AR cloud is a young non-profit
… 60+ partners and 300+ members
… big picture here
… new convergence
… real world spatial computing including IoT
… what is the AR cloud?
… realtime 3D/spatial map of the world
… (Ori Inbar)
… exciting concept
… (4 books on the slides)
… Open AR Clouds, AR Convergence, Welcome to Mirror World, ...
… Layers of the Spatial Web
… thematic layers and reality capture layers
… IoT, Art, Entertainment, Commerce, etc.
… currently not good interoperability there
… The Open Web Platform - Web@30
… standards, protocols, services, clients
… we should let James Jackson give the through story
… jj: interesting comparison with the Web
… Open Spatial Computing Platform (OSCP)
… provides core building blocks
… we provide reference implementations
… high-level view of the experience
… various phases here
… first thing to do is discovery
… spatial service discovery
… it's sort of hierarchy
… it's mapping of coverage polygon
… services themselves will be smaller geo area named geo zone
… determine accurate position in the real world
… and secondly determine it in GeoPose
… determine the precise position where you're within the real world
Jan-Erik: GeoPose is under development and, when approved, will become an OGC standard
… also we have the CEO of a company who provide it
… small steps to the goals
McCool: we need to move along
James: ok
… once you determine the position
… you can think of democritizing the position
… anyone can discover it
… content itself is not our standardization target
… the other key aspect is digital twin
… static layer and dynamic layer
… discover a content which is available to me
… e.g., a building in front of me
… spatial discovery is one of our use cases
… you could discover other elements
McCool: a lot of points packed here
… any additional materials before discussion?
(none)
McCool: is there any liaison with W3C?
Jan-Erik: happy to establish one
… indirectly connected via ETSI, etc.
Christine: can work with Kaz for the procedure
Kaz: yes
McCool: two points here
… 1. information model
… what information to be included here?
… 2. discovery process
… very loose structure here
… onboarding, contact model, etc., to be described
… we don't have to just have a mDNS approach
… and would like to know how your model works
Jan-Erik: would follow it up
… we ourselves work on the geospatial aspects
McCool: semantic discovery and network-relevant discovery are also of our interest
… also last year we started to work on several use cases
… Rob Smith submitted one
… e.g., geospatial query needs to include position of view
Rob: regarding location
… are you interested in trajectory, i.e., history of location, as well?
McCool: historical data in general
… relates to time-series data
… time stamp is also
… not only spatial aspect
Rob: video aspect is in my scope
McCool: Kaz is also involved in the MEIG
Rob: yes
Jan-Erik: interesting aspect about time domain
… different time series structure to be considered here
… note that it's highly sensitive
… if you have very local access, the data might be aggregated
McCool: yeah
… could be several use cases like factory automation
… sometimes privacy control could be less weighted
Next steps
McCool: capturing use cases and requirements
… we're holding use cases call bi-weekly
… having a couple of you would be helpful
… do a project to dig into the issues
Christine: Linda, any ideas from the Spatial group viewpoint?
Linda: what McCool mentioned makes sense
… functional requirements would be helpful
… and thinking about GeoPose
Christine: dig into some complete package
McCool: follow-up actions here
… (updates the agenda issue)
agenda issue updated with action items
McCool: 1. spatial experts participating in WoT use cases calls and contributing use cases
… 2. discuss liaisons between WoT and geospatial SDOs
… 3. WoT to review and summaze relevant spatial data standards
… 4. review of ongoing standards activitis
… 5. proposals and prototypes from WoT to b reviewed by spatial experts
… the question is what/where the spatial data comes from
… having a service that is responsive for some specific area?
Kaz: completely agree with the approach
… and would like to extract horizontal requirements as well as vertical requirements from the use cases at the bullet point 1
McCool: (adds note to the bullet point 1, use case)
Rob: spatial on the Web producing responsible use of spatial data
… would like to post the information
Editor's draft
<RobSmith> https://
McCool: tx
published draft
<brinkwoman> Actually just published at https://
https://
<McCool> https://
<McCool> https://
McCool: the next WoT Use Cases call will be held on Jan-26
McCool: people interested are encouraged to join that call
Kaz: if you're interested but don't have access to the webex coordinate, please let me know
[adjourned]