UTILIZACIÓN DE DATOS LIDAR Y SU INTEGRACIÓN CON SISTEMAS DE INFORMACIÓN GEOGRÁFICA
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1 UTILIZACIÓN DE DATOS LIDAR Y SU INTEGRACIÓN CON SISTEMAS DE INFORMACIÓN GEOGRÁFICA Aurelio Castro Cesar Piovanetti Geographic Mapping Technologies Corp. (GMT) Consultores en GIS info@gmtgis.com
2 Geographic Mapping Technologies, Corp. Technical Support Consulting Trainings Vertical Solutions Data Providers Satellite Imagery Aerial Photography
3 Overview Introduction to LiDAR Advantages of using LiDAR Applications LIDAR tools Overview LIDAR examples Live Demo
4 Introduction to LiDAR Acronym for Light Detection and Ranging Collection sensor uses laser with transmitter and receiver, GPS receiver, inertial measurement unit (IMU) and a scanner Uses light waves Usually operated at 532 to 1550 nm in electromagnetic spectrum Provides 3D information for an area of interest Can be collected through aerial, terrestrial, or mobile methods
5 Advantages of using LiDAR Can be used day or night Fast, accurate and generally affordable Tailor collection needs, such as point density, for a particular project from county or statewide projects with aerial scanners, to very limited focus projects with terrestrial scanners Flood plain mapping requires 1.4 points per meter Power line mapping can require 20 to 40 points per meter Vegetation mapping requires 8 to 12 points per meter Highly accurate elevation information for DEM creation
6 Advantages of using LiDAR Great for mapping man-made features Can emit pulses through vegetation canopy, best for leaf-off Can process data to create contours, GIS features and 3D images Saves time and money combined with imagery it is the next best thing to being there
7 Limitations of LiDAR Can t see through clouds or fog or smoke Moisture affects the collection of points Like all remotely sensed data, must be calibrated and corrected properly to provide good accuracy in results
8 Useful LiDAR Applications Surface mapping Geology Oil and Gas Road resurfacing Vegetation mapping Forestry Agriculture Transportation corridor mapping Road surveys Rail line surveys Transmission and pipeline surveys Transmission route mapping
9 Useful LiDAR Applications 3D building mapping and urban modeling Floodplain mapping Archaeology Environmental Identify wildlife habitats Coastal morphology and hazard assessment Defense Target identification Mine detection Line of sight analyses
10 LIDAR Tools Overview E3DE software experience Automatic solution for point cloud data processing Focused on use of LiDAR data to produce realistic 3D models Airborne LiDAR data processing software product that transforms geo-referenced point clouds into GIS layers and 3D models. Enables the processing of large quantities of data in a short period of time Allows for the creation DTM, DSM, SHP files to represent buildings and power lines, trees list and other items Automatically creates a 3D view of the mapped area Photo-realistic dynamic presentation
11 Step 1 Import the LiDAR point cloud and reference information The Six Steps to LIDAR data processing Step 2 Check density and coverage Step 3 Filter lower points & Set the project properties Step 4 Process the data Step 5 Perform quality assurance Step 6 Perform Precision Test... E3DE software experience
12 E3De Features Automatic Product Generation Classified Point Cloud Digital Surface Model (Grid and TIN) Digital Elevation Model Ground contours Building roof faces vectors Building Perimeter vectors Power line vectors Power pole list (X,Y,Z,H,R) Power line attachment point list (X,Y,Z) Tree list (X,Y,Z,H,R) Point density and coverage analysis... E3DE software experience
13 E3De Product Generation Product Selection > Generate All Products or a subset > Can save parameters to template > Can limit size of output
14 LIDAR Product Generation Area Selection Process Entire Scene or Subset > Overlay Reference Data >SHP files >Imagery... E3DE software experience
15 E3De Product Generation Parameters Setting Parameters for all available Outputs Parameters can be saved in a template for future processing
16 E3De Features QA/QC User modifications to TLiD point classification DEM editing Power line and power pole editing Tree parameters editing Manual vector editing Visual Exploitation Point Cloud viewing Interactive cross section visualization Manual Point Cloud visualization Flythrough visualization
17 LIDAR Point Cloud Visualization Overview window Point Cloud Viewer... E3DE software experience
18 LIDAR - Point Cloud Classification... E3DE software experience
19 LIDAR Building Cross Section... E3DE software experience
20 LIDAR Power Lines w/cross Section view... E3DE software experience
21 LIDAR Point Cloud Visualization... E3DE software experience
22 LIDAR Automatic Classification... E3DE software experience
23 LIDAR Vector Products... E3DE software experience
24 LIDAR QA/QC View... E3DE software experience
25 LIDAR Interactive Building Editting... E3DE software experience
26 E3De Interactive Building Editor Interactively edit automatically extracted buildings 2D to 3D linked editor Automatically square off buildings Remove multiple with square-off Add new points Add new buildings Visualize point cloud data while editing for reference
27 LIDAR Interactive Tree Editing... E3DE software experience
28 LIDAR Interactive DEM editing... E3DE software experience
29 LIDAR Interactive DEM Editing (con t)... E3DE software experience
30 E3De Interactive DEM Editing Add / Remove points from terrain Level Areas Filter points in Radius
31 LIDAR 3D Flythrough Viewer Haiti Earthquake... E3DE software experience
32 LIDAR Flythrough Flight Controls... E3DE software experience
33 LIDAR Export Options... E3DE software experience
34 E3De Google Earth Export Oakland, CA (USGS)
35 Advantages of Using E3De Short data processing time Reduced cost with improved efficiency Easy-to-use GUI Stand-alone processing product Enhanced interoperability of results with other products Large number of industry standard output formats Fast parallel processing for cost reduction No limitation on input file size Trees counting feature height and size
36 Summary E3De releases October, 2011 Complete solution automatic product generation with interactive QA/QC Powerful export capabilities
37 ITT Visual Information Solutions IDL The preferred computing environment for understanding complex data ENVI Get useful information from geospatial imagery IAS Rapid image compression and delivery technology ENVI ArcGIS
38 Percepción Remota Extraer Información ArcGIS (Including Desktop, Server, Enterprise) ENVI Geo Database Imágenes & Fotos Disponibles NOAA BioGeo 1999 IKONOS 2003 Fotos Aereas Fotos Aereas Realizar Análisis Reconocimiento Automático de Elementos Detección de Cambios
39 Percepción Remota & LiDAR Extraer Información ArcGIS (Including Desktop, Server, Enterprise) ENVI Geo Database
40 Nuevas Estructuras $2, (54 estructuras x $50.00)
41 DEMO
42 Preguntas? Geographic Mapping Technologies, Corp. (787) / (787)
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