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Airborne LIDAR mappingtools, technology, trends, outlook
ASPRS Annual Conference – PDAD Airborne LIDAR Mapping Technology Panel
April 30, 2008
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ALS50-II Airborne LIDAR Scannercontinued innovation, expanded performance
Breakthrough system design allows 150 kHz pulse rate with no loss in accuracy
Multiple Pulse in Air (MPiA) technology
carries 150 kHz performance to 1569 m AGL
2x pulse rate improvement over conventional systems altitudes above 1400 m AGL
Improved 90 Hz maximum scan rate
Fully integrated FCMS flight navigation with airborne-certified displays
Compact electronics
Simple 3rd-party sensor integration using embedded IPAS10 GNSS/IMU subsystem
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ALS Corridor Mapperresponding to emerging markets
Uses key ALS technologies
1000 m AGL maximum flying height
High accuracy and high point density, even at maximum flying height
Corridor or “large-map-scale” applications
Lower price point
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RCD105 Digital Frame Camera introduction39 MP: fast, flexible, plug-and-play with ALS50-II
Purpose-designed airborne camera
RGB or CIR operation
35, 60 and 100 mm lenses
Fast 2.02 second frame interval
User-replaceable 1/4000-sec shutter
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Significant milestonestechnology put to work
MPiA is now a mainstream technology
Huge projects being undertaken w/ MPiA systems (Example – NWG has collected 315,000 km², 835 aircraft hours, 1 point / m², 750,000 km² collection)
Number of new system deliveries/demos for high altitude use @ 4500 m – 6000 m AGL
4500 m AGL, MPiA, 66º FOV, 1.5 m avg. post spcng
Image courtesy of North West Geomatics
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RCD105 Digital Frame Camera for ALS50-IIrugged design for precise imagery
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LIDAR trendswhere is LIDAR in the “adoption curve”?
Market is still growing
~249 LIDAR systems sold (total market) since mid 1990s
Rate at which LIDAR systems are entering the market is doubling every 3-4 years
48 LIDAR systems entered the market in 2007
Airborne LIDAR Market
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LIDAR trendswhat are the application market trends?
Increased interest in infrastructure measurements
Railways
Roads
Power lines
Pipelines
National forest inventory
Biomass
Carbon uptake
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LIDAR trendswhat are the technology trends?
Point density laser pulse rates doubling every ~2 years
Point accuracy customers pushing the limits of technology, but limited by GNSS accuracy
Availability of high-accuracy position data increasing with introduction of GPS + GLONASS
Increasing use of “fitting” software (e.g., TerraMatch)
Regulatory issues import/export getting easier to deal with due to wider IMU availability
Use of auxiliary sensors over 50% of LIDAR systems have integrated imaging sensors
Medium format
Large format
Multispectral
Thermal
Processing speed increasing number of 3rd-party workflow suppliers
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Outlook and summary
Demand for data is still increasing
LIDAR and medium format camera systems continue to show rapid increases in performance
Point density and point acquisition speed (i.e., pulse rate) continue to dominate in the field of new features the market is demanding
New processing architectures are making inroads, but no obvious replacements for current processing methodologies
Thank you!(come see us in booth 200)
Ron Roth
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