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Mastering the Challenges of 3D Data Management

ORACLE PRODUCT LOGO. Mastering the Challenges of 3D Data Management. Hans Viehmann Product Manager EMEA. Specific challenges for 3D data. large amounts of data (acquisition & storage) expertise and specific tooling required for data processing data models and standards

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Mastering the Challenges of 3D Data Management

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  1. ORACLE PRODUCT LOGO Mastering the Challenges of3D Data Management Hans ViehmannProduct Manager EMEA

  2. Specific challenges for 3D data • large amounts of data (acquisition & storage) • expertise and specific tooling required for data processing • data models and standards • adequate visualization tools • data dissemination

  3. How do we fit in? • Data Storage • Data Lifecycle Management • Data Analysis • for all variations of spatial data • Vector, Raster, Point Clouds, TINs, Networks, Topologies, ...

  4. Why use a database?! • Moving Spatial data into IT infrastructure allows to • Lower data management cost • Simplify application development • Integrate with other enterprise data • Enable development teams to focus on business context, not infrastructure services • Database and Application Server manage deployment infrastructure • Security • Scalability • Standards Compliance • Load Balancing • Failover • HW/SW Dependencies • Support multiple application models with common data model • Java • GML • Future … • .Net• Web Services/SOA

  5. Data acquisition in 3D • large volumes of point data acquired by sensors • LIDAR (Light Detection and Ranging) • Seismic sensors • millions of points to model a scene • data type to efficiently manage this data • SDO_PC: can handle billions of points • Triangulated Irregular Network: create surfaces from point data sets • SDO_TIN: scalable storage

  6. General 3D processing flow Convert to Geometries LiDAR Files LiDAR loader Query and Clip TIN tables Generate TIN SDO_PC tables Load point cloud Query and Clip Convert to Geometries Flat files Point Tables

  7. Data loading using libLAS • available from http://liblas.org/ • for Windows, download and install pre-build binaries in the OSGeo4W package http://trac.osgeo.org/osgeo4w/ • A packaging of a number of open source tools: libraries, desktop GIS (Quantum, Grass, …), servers (UMN Mapserver, …) • main tools (see http://liblas.org/docs.html for details) • lasinfo = returns information about a LAS file • las2oci = loads a LAS file into Oracle • las2las = copy and transform a LAS file • las2txt = converts a LAS file to a text format • txt2las = the reverse

  8. Management of 3D data • correct, integral usage of height information („z“) • 3D indexing and query • coordinate system support • ability to model 3D objects • points, lines, polygons with „z“ • solids, surfaces • point clouds • need for higher-level data models • eg. support for CityGML data model

  9. Constructing 3D objects • Simple Surfaces • Face = 3D Polygon • Composite Surface • Multiple connected faces • Simple Solid • Closed composite surface • Composite Solid • Multiple connected simple solids • Extrusion • Generating solids from 2D polygons

  10. Data models for City Modelling • Structures at multiple levels of detail • Textures and facades • Orthophotos • Versioning • 3DCityDB (open source data model) is widely used LOD1 Building LOD2 Building LOD3 Building LOD4 Building Images courtesy of: Research Center Karlsruhe

  11. City of Berlin – 3D City Model • 550000 buildings, reconstructed from 2D cadastre and LIDAR data • Textures extracted from oblique aerial photography • Stored in 3DCityDB • 2012 Oracle Spatial Excellence Award • Implemented by TU Berlin Images courtesy of: TU Berlin, Institute for Geodesy and Geoinformation

  12. Engineering & Construction - Crossrail

  13. Publish KML in the XDB Repository

  14. View in Google Earth

  15. Summary • integrated storage and management of all relevant data types • scalability to huge amounts of data and large numbers of users • comprehensive tooling and partner solution portfolio • leveraging key features of Oracle Database

  16. Upcoming Events • Oracle Spatial and Graph Users Conference 2013 • Washington, DC, May 22 • in conjunction with Location Intelligence 2013, May 21 • new: attend by Webcast, „live“ or „on-demand“ • see http://www.locationintelligence.net/dc/registration/

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