geoteχs geo-information technology communication and consultancy services pictometry mathias...
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GeoTeχs Geo-information Technology Communication and Consultancy Services
PictometryMathias Lemmens
Christiaan LemmenMartin Wubbe (The Netherlands)
(paper 2521)
6th FIG Regional Conference12-15 November 2007, San José, Costa Rica
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Agenda
• Introduction• Pictometry• Goals• Results• Conclusions• Recommended Pilots
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Tasks of the Cadastre
• Registration, management and releasing title information and geo-information
• Land development• Managing the national geodetic framework• Providing information products• Carrying out international activities
Total Number of Parcels Registered 8,568,274
Number of registered transaction acts in 2005 478,200
Number of registered mortgage acts in 2005 770,900
Number of information requests (2005) 18,907,473
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GeoTeχs Geo-information Technology Communication and Consultancy Services
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Pictometry CharacteristicsGeo-referenced: ortho + oblique
GSD ortho: 15cm
GSD oblique: 10 – 18 cm
Ortho images AHN (5m)
30% Overlap (no stereo)
Flying Height: 1km
Size ortho: 350m x 560m
Pricing: € 250 / km2 / annum
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Possible Applications• Homeland Security• Urban planning• Illegal Buildings• Fire departments• Disaster management• Signal propagation• Fly-Around Simulations• “Our Limit is Your
Imagination”
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Research Aim
• How Pictometry may be of benefit to support the tasks and ambitions of Kadaster:
– To be the principal supplier of real estate and geo-information within the Netherlands
– Authoritative within Europe
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Research Questions
• Accuracy?
• Updating topographic maps?
• Oblique images Traditional Photogrammetry?
• Measuring of cadastral boundaries?
• Costs?
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Planar Accuracy
Ortho: 19cmOblique: 86cm
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Elevation Accuracy
• Depends on accuracy AHN– Systematic error 5cm– Random error 15cm
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Fuelling Station/Storage Place
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Which side are the trees?
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Looking Underneath
Buildings
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Recognition of non-buildings
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GeoTeχs Geo-information Technology Communication and Consultancy Services
What crosses the Road?
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Third Dimension
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Traditional Pictometry
Advantages
-15cm 36 cm-View Underneath Objects-Height measuring tool-(oblique) attribute assignment-Software is easy and intuitive-Colour
Disadvantages
-No stereo (at present)-No polygon mapping
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Preliminary Cadastral Boundaries (1)
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Preliminaire Cadastral Boundaries (2)
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Preliminaire Cadastral Boundaries (3)
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Costs
• Investment; not only cost reduction in existing work processes
• Beneficial in the long term (production, goodwill, leadership)
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Conclusions Strategic++
• Photogrammetry and oblique images
• Growth market– Cities 50.000+– OS, Cadastre Spain – Microsoft local.live.com
• Catalyser for GII• Accurate Survey tool, not
only viewing• Standard price: € 250 / km2
/annum
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Conclusions Strategic--
• Stereo images• Functionality
software, integration GIS
• Exclusive License Blom (Europe)
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Conclusions PictometryTactical/Operational++
• Identifying preliminary boundaries via notary• Building registration• Communication citizens and government• Maintenance topographic maps – if stereo• Add on to Top Map• 3D City Models• Easy, intuitive interface, very accessible• Navigation tool for entering databases (e.g.
building registration, WOZ)
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Conclusions PictometryTactical/Operational--
• Additional functionality required• Footprint difficult identifiable• System needs DEM – not if stereo images• No integrated aero-triangulation
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Preliminary Boundaries
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GeoTeχs Geo-information Technology Communication and Consultancy Services
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GeoTeχs Geo-information Technology Communication and Consultancy Services
1. Identification of boundaries in Notary office
• Prerequisites– Notary, representative sample of deeds, PC + software, HR,
data, € 20.000,--
• Expected Results– Better spatial orientation for parties – No identification in the field (50%)– Immediate Parcel Creation – New template for surveyor
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GeoTeχs Geo-information Technology Communication and Consultancy Services
2. Building Registration: suitability test with BAG designers
• Prerequisites– stereo pictometry, representative part of a Dutch city, DPW,
software, HR, BAG designers, data, € 35.000,--
• Expected Results– Desired / collectable data– Navigation tool
Additional Benefit– pro-active attitude towards VROM
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GeoTeχs Geo-information Technology Communication and Consultancy Services
3. Pictometry as navigation tool in cadastral portal
• Prerequisites– Extending KOL (prototype), HR, PC+software,
data, sessions with customers, € 50.000,--
• Expected Results– Customer’s reactions– easier access to data (e.g. BAG, WOZ)– overview of potential products and applications
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GeoTeχs Geo-information Technology Communication and Consultancy Services
Thank You for your Kind Attention