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Geosystems @ Hexagon 2011
Nationwide LiDAR & Orthophoto coverages:
From PNOA in Spain to Sigtierras in Ecuador
Pedro Llore...
Stereocarto I
Mapping company since 1964
More than 100 employees
8 companies in the group covering the whole
geoinformatio...
Stereocarto II
Intergraph


3 Z)I Imaging DMC (w Applanix IMU)



ImageStation software

Leica Geosystems


2 ALS50 II ...
INSPIRE European Union directive
 Directive 2007/2/EC of the European Parliament and of the Council
of 14 March 2007 esta...
National implementation of INSPIRE directive
 Every EU state has to take transposition measures to develop
the INSPIRE di...
First orthophoto national coverages in Spain
 During the 90’s there was a great development of the orthophoto
generation ...
Current projects: PNOA
(National Aerial Orthophoto Program)
 Spanish IGN (Instituto Geográfico Nacional) led an initiativ...
PNOA 2004

8

National LiDAR & Orthophoto coverages: From PNOA
in Spain to Sigtierras in Ecuador
PNOA 2005

9

National LiDAR & Orthophoto coverages: From PNOA
in Spain to Sigtierras in Ecuador
PNOA 2006

10

National LiDAR & Orthophoto coverages: From PNOA
in Spain to Sigtierras in Ecuador
PNOA 2007

11

National LiDAR & Orthophoto coverages: From PNOA
in Spain to Sigtierras in Ecuador
PNOA 2008

12

National LiDAR & Orthophoto coverages: From PNOA
in Spain to Sigtierras in Ecuador
PNOA 2009

13

National LiDAR & Orthophoto coverages: From PNOA
in Spain to Sigtierras in Ecuador
PNOA 2010

14

National LiDAR & Orthophoto coverages: From PNOA
in Spain to Sigtierras in Ecuador
PNOA LiDAR 2009

15

National LiDAR & Orthophoto coverages: From PNOA
in Spain to Sigtierras in Ecuador
PNOA LiDAR 2010

16

National LiDAR & Orthophoto coverages: From PNOA
in Spain to Sigtierras in Ecuador
Technical requirements I
Massive image capture capability
 First nationwide orthophoto
projects were flown with
analogue ...
Technical requirements II
Massive image orientation capability
 First nationwide
orthophoto projects were
aerotriangulate...
Technical requirements III
Massive DEM extraction capability
 First nationwide orthophoto projects were based in correlat...
Methodology requirements
 Despite all the benefits
introduced by digital cameras,
IMUs, LiDAR, etc. prices went
down and ...
Thank You!

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Nationwide LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador

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Nationwide LiDAR flights for massive orthophoto production presented at Hexagon Conference 2011 in Orlando

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Nationwide LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador

  1. 1. Geosystems @ Hexagon 2011 Nationwide LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador Pedro Llorens – Stereocarto – Business development manager Orlando 06/06/11
  2. 2. Stereocarto I Mapping company since 1964 More than 100 employees 8 companies in the group covering the whole geoinformation workflow: Capture, process and exploitation Activities:  Aerial survey (Photo & LiDAR)  Mapping & Orthophoto  GIS & SDI  Geoinformation consulting  Project management & quality assurance Focused in innovation 2 National LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador
  3. 3. Stereocarto II Intergraph  3 Z)I Imaging DMC (w Applanix IMU)  ImageStation software Leica Geosystems  2 ALS50 II (w IPAS IMU) LiDAR  1 ALS60 (w IPAS IMU) LiDAR  1 ADS40 SH52 (w IPAS IMU) sensor  1 RCD 105 medium format camera  XPro & Orima software  1 DSW700 Scanner 3 National LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador
  4. 4. INSPIRE European Union directive  Directive 2007/2/EC of the European Parliament and of the Council of 14 March 2007 establishing an Infrastructure for Spatial Information in the European Community (INSPIRE)  Regulates aspects like metadata, interoperability, network services, data sharing, etc.  Is based in the existing SDI of the EU members  Annex I, II and III define geospatial data:  Annex I: Coordinate reference systems, geographical grid systems, geographical names, addresses, etc.  Annex II: Elevation, land cover, orthoimagery, geology.  Annex III: Statistical units, land use, governmental services, agricultural facilities, natural risk zones, etc. 4 National LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador
  5. 5. National implementation of INSPIRE directive  Every EU state has to take transposition measures to develop the INSPIRE directive  In Spain LISIGE (Law on geographical information infrastructures and services in Spain) was approved the 5th of July 2010  INSPIRE/LISIGE make compulsory to national and regional goverments the web publication of geospatial data according to INSPIRE data specifications and metadata definitions  Spanish geographic institutes and government have supported generation and normalization of geographic data 5 National LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador
  6. 6. First orthophoto national coverages in Spain  During the 90’s there was a great development of the orthophoto generation as a result of a global cadaster update that required mapping and orthoimagery  Seven Spanish companies (Including Stereocarto) acquired analytical orthoprojection systems from Leica and Zeiss (Orthocomp)  By the end of the 90’s, the distribution of agricultural subsidies and crop control required aerial imagery of cultivated areas  OLISTAT was the main project. Ministry of Agriculture made B/W 1m GSD orthophoto of 80% of Spain (400,000 Km2) to count the number of olive trees. This boosted the shift from analytical to digital photogrammetry workstations in Spain.  Since then the European Commission has consolidated its CAP (Common Agricultural Policy) and has required updated orthoimagery of the whole Spanish territory  The Spanish Ministry of Agriculture is responsible of data 6 National LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador
  7. 7. Current projects: PNOA (National Aerial Orthophoto Program)  Spanish IGN (Instituto Geográfico Nacional) led an initiative to consolidate the production of orthophotos in Spain in the PNOA project  IGN coordinated several ministries requiring orthoimagery, mainly: Public Works (IGN), Environment, Agriculture and Finance (Cadaster)  There was a negotiation with the 19 regional governments to share the costs (national government 66% - regional governments 34%)  Strategies, specifications and quality assurance were developed and adapted to INSPIRE/LISIGE and CAP requirements  Orthophotos and DEMs are mainly used by IGN for dissemination, by M. of Agriculture for CAP, by M. of Environment for flood risk mapping and M. of Finance for Cadaster. Some regions license the orthoimagery to Google Maps 7 National LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador
  8. 8. PNOA 2004 8 National LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador
  9. 9. PNOA 2005 9 National LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador
  10. 10. PNOA 2006 10 National LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador
  11. 11. PNOA 2007 11 National LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador
  12. 12. PNOA 2008 12 National LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador
  13. 13. PNOA 2009 13 National LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador
  14. 14. PNOA 2010 14 National LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador
  15. 15. PNOA LiDAR 2009 15 National LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador
  16. 16. PNOA LiDAR 2010 16 National LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador
  17. 17. Technical requirements I Massive image capture capability  First nationwide orthophoto projects were flown with analogue cameras RC30 and RMK TOP 15.  Improvements in workflow introduced by large format digital cameras allowed higher productivities and higher update frequencies.  Improvements in radiometry and corregistration of NIR (4 band imagery) in digital cameras boosted agricultural and environmental applications. 17 National LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador
  18. 18. Technical requirements II Massive image orientation capability  First nationwide orthophoto projects were aerotriangulated with correlation APM systems.  Ground control was one of the main costs so bundle adjustment with GPS became mandatory.  Further reductions in ground control and the need to facilitate APM has made compulsory the use of IMUs. 18 National LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador
  19. 19. Technical requirements III Massive DEM extraction capability  First nationwide orthophoto projects were based in correlated DEMs  The need of better quality DEMs with less edition time suggested the use of LiDAR  LiDAR had only been used in small areas like corridors, cities, river basins, etc.  LiDAR started its application in DEM extraction in huge areas 19 National LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador
  20. 20. Methodology requirements  Despite all the benefits introduced by digital cameras, IMUs, LiDAR, etc. prices went down and there was a need for lower costs  On the other hand, aerial data capture keeps being the main bottleneck and there is a need to reduce the time required and to maximize the use of the time available.  Photo-LiDAR combined flights 20 National LiDAR & Orthophoto coverages: From PNOA in Spain to Sigtierras in Ecuador
  21. 21. Thank You! 04/07/10: EDIT OR DELETE THIS IN THE “MASTER” > “SLIDE MASTER” UNDER THE “INSERT” MENU.

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