LiDAR Applications Overview Summer 2012. Definition LiDAR: Light Detection And Ranging.
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Transcript of LiDAR Applications Overview Summer 2012. Definition LiDAR: Light Detection And Ranging.
![Page 1: LiDAR Applications Overview Summer 2012. Definition LiDAR: Light Detection And Ranging.](https://reader035.fdocuments.us/reader035/viewer/2022062519/5697c0011a28abf838cc2262/html5/thumbnails/1.jpg)
LiDAR ApplicationsOverview
Summer 2012
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Definition
LiDAR: Light Detection And Ranging
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Basic Principles Combination of 3 technologies
– Laser Ranging– GPS– IMU
Active Sensor – Can be acquired at night
Platforms– Fixed or Rotary Wing Aircraft– Terrestrial; Vehicle & Tripod
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Basic Principles
IMU
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Basic Principles
Pulse Repetition Frequency (PRF) Multi-pulse (in air) Multiple Returns Scan Frequency Scan Angle Platform Speed and Altitude Intensity
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LiDAR Categories
Aerial Terrestrial
Mobile StaticTopographic Bathymetric
Fixed Wing Rotary Wing
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Aerial SensorsExamples: Optech Leica Riegl
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Fixed Wing
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Fixed Wing
Cabin Footprint:
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Fixed Wing
Typical Applications:
Wide Area MappingFloodPlainsCounties/StatesForestry ApplicationsLandfills/Quarries/Volume AnalysisMost 1’ & 2’ Contour Interval Projects
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Fixed Wing
Typical Parameters:
500m – 2000m AMT70kHz – 200kHzPoint Spacing .5m – 2m (Single Swath)Swath 200m – 1km and higher
Focus on covering more ground, more quickly
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Rotary Wing
GeoDigital International
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Rotary Wing
Typical Applications:
Corridor MappingDOTTransmission
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Rotary Wing
Typical Parameters:
Acquisition a couple hundred feet above the groundUpwards of 200kHz10-30 points per meterSwath 200’-1000’
Focus on max point density for small feature ID
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Rotary Wing
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Static LiDAR
Leica HDS – Scan Station
Riegl VZ-400
Examples:
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Static LiDAR
Typical Applications:
RefineriesSubstationsIntersectionsPipesLock WallsCaves/Mines
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Static LiDAR
Typical Parameters:
Usually tripod based within a couple hundred feet of targetSeveral points per square foot to several points per inchUsually accompanied with imaging sensor for RGB assignmentControlled with prisms occupying surveyed control points
Focus on max point density for small feature ID and modeling
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Static LiDAR
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Mobile LiDAR
Optech Lynx Street Mapper
Examples:
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Mobile LiDAR
Typical Parameters:
Several points per square footUsually accompanied with imaging sensor for RGB assignmentControlled with targets occupying surveyed control points
Focus on max point density for small feature IDData often adjusted to control established by level loop for
high accuracy grading
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Mobile LiDAR
Typical Applications:
Corridor MappingDOTStreet Level VisualizationTransmissionRail Corridors/Tunnels
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Mobile LiDAR
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Mobile LiDAR
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Mobile LiDAR
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Questions?