Post on 17-Jun-2018
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Amrita School of EngineeringAmrita Vishwa Vidyapeetham
Tool for Indoor InformationExtraction and Representation
Dr.Vidhya BalasubramanianDr.Latha Parameswaran
Ms.V.Smrithi Rekha@
RESEARCH PROJECT PROPOSAL PRESENTATIONICGTA 2012
12-4-2012: IIT Bombay
Amrita School of EngineeringAmrita Vishwa Vidyapeetham
Motivation
http://blog.mallofamerica.com/wp-content/uploads/2011/11/New-Picture-1-389x313.png
http://bdnooz.com/lbs/wp-content/uploads/2009/11/indoor-navigation.jpg
http://www.renesas.com/media/edge_ol/feature/07/img_01.jpg
Amrita School of EngineeringAmrita Vishwa Vidyapeetham
Introduction Indoor Information Systems essential for
Asset management Emergency Response Facilities Management Indoor Navigation
Require Queryable indoor spatial datasets Indoor data management
Indexing and Querying Indoor data visualization
Amrita School of EngineeringAmrita Vishwa Vidyapeetham
Goal of this Proposal Develop a tool for designing an indoor information
system which will use existing open source GIS tools and Indoor GML standards
Supports user interactions to input CAD maps/raster maps of the building add information related to the building and entities inside
the building through an interactive interface Technical functionalities
Extraction of features from the map Represent the indoor data using Indoor GML Visualization and Querying based on Indoor GML
Evaluate IndoorGML's suitability to represent different layers or data and semantic information efficiently
Amrita School of EngineeringAmrita Vishwa Vidyapeetham
Need for Indoor Spatial Data Existing building maps
CAD format Polygons may not be closed, room identification difficult CAD Annotations difficult to work with
Raster maps (old buildings) Extracting rooms etc requires complex processing
Need to convert them to GIS formats Extract room and other information and layer them
Querying more easier Users can edit/correct maps more easily Adding information/layers more easy
Add more metadata and represent using GML
Amrita School of EngineeringAmrita Vishwa Vidyapeetham
Indoor Spatial Data
Layer Geometric Entities or ObjectsINTERIORS Lines representing interiors of buildings
EXTERIORS Long lines representing exteriors lie compound walls, corridors etc.,
DOORS Line segments representing parts of doors
WINDOWS Line segments representing windows of the rooms
TEXT This includes the names of the rooms eg., drawing room
BRDR 1-9 These are the lines that include additional details about the border lines.
ARCS These include the information about the arcs representing the direction of opening the doors
Amrita School of EngineeringAmrita Vishwa Vidyapeetham
CAD to IndoorGML
CAD Feature Extraction
Convert to Shape files
Indoor GML Representation
<Feature fid="142" featureType="room" Description="A403">
<Polygon name="extent" srsName="epsg:27354">
<LineString name="extent" srsName="epsg:27354">
<CData>
491.99, 545.99 458,545.99
491.99, 545.99 491.1, 545
</CData>
</LineString>
</Polygon>
</Feature>
Amrita School of EngineeringAmrita Vishwa Vidyapeetham
Indoor Data Management Representing using IndoorGML
– Representing connectivity and proximity– Representing multiple layers
• Spatial and semantic information Indoor Data Indexing
– Explore existing spatial data indexing techniques for indoor data
Query Support
Amrita School of EngineeringAmrita Vishwa Vidyapeetham
Query Support● Standard Queries
● Point queries, region queries, range queries, attribute based queries etc
● Proximity queries● Path Finding ● Object related queries
● How many chairs can be placed in this room?● Is this object movable into Room A304
Amrita School of EngineeringAmrita Vishwa Vidyapeetham
References Ron Lake, Introduction to GML,
http://www.w3.org/Mobile/posdep/GMLIntroduction.html Ki-Joune Li and Jiyeong Lee, “Indoor Spatial Awareness Initiative
and Standard for Indoor Spatial Data”, IROS 2010 3DIM Indoor Special Session, Dec 2009 OGC Meeting Slides “OpenGIS® City Geography Markup Language (CityGML)
Encoding Standard”, Open Geospatial Consortium Inc, OGC08-007r1, 2008
Amrita School of EngineeringAmrita Vishwa Vidyapeetham
Prior WorkITR-Rescue (UCI, Calit2)DrillSim
multi-agent evacuation simulator for indoor spaces MetaSim
integrated simulation platform Multiple simulators on a single platform to simulate
large disaster response scenarios Multi-Geography Path planning and representation