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Developing an Aerial Workflow for UAVs
Genie Hays, LizardTech Account Manager
Overview
2
• Why UAVs?
• Production
• Post production
• Business opportunities
• Predicted advances and concerns
Why UAVs?
3
• Autonomy (potentially)
• Launch and land virtually anywhere
• Endurance
• Potential to reduce acquisition costs
4
Do you plan to use a UAV in the next 5 years?
No 12%
Yes 88%
No
Yes
(blank)
Why not UAVs?
5
• Airspace regulation
FAA has yet to provide a structured plan for US Airspace
All six U.S. test sites are now in operation: ND Department of Commerce, University of Alaska, Nevada,
Texas A&M Univ. – Corpus Christi, Rome, NY (Griffiss Int. Airport),
Virginia Tech
EUROCONTROL has adopted general regulations
• https://www.faa.gov/uas/
UAVs and support software
UAV providers
• SenseFly
• Trimble
• AeroVironment
• Boeing
• Many, many more
UAV support software
• Pix4Dmapper
• Trimble TBC
• Photoscan
• Autodesk 123D
• Global Mapper
• Open source tools
Mission planning
• What airspace concerns
are in the area?
• What are you trying to
acquire?
• What route will you fly?
• How many passes will
be required?
• How will the device be
recovered?
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Launch/acquisition/recover
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• Launch • How much space is
required for launch?
• Acquisition • Typically a grid or back
and forth pattern
• How long will the vehicle be airborne?
• Recovery
9
Image production
• Ground control points
• Orthorectification • Corrects for surface of
the earth, tilt of the sensor, etc.
• Correct/warp the image to match known ground control points
• Digital Elevation Model (DEM)
• Georeferencing
• QC
10
Post production
• You’ve got your imagery…now what? • Storage
• GeoTIFF, MrSID, JPEG 2000, etc.
• Analysis • Esri, Erdas, QGIS, etc.
• Distribution • Express Server, Image
Server, etc.
11
Image collection
• TBs of imagery collected
• How to store?
• How to display? • Map projections &
reprojection
12
Image Compression
• Will I lose data?
• Will there be distortion?
• Will I have to decompress?
13
Image Compression
• MrSID - fast, efficient images • 5 Terabytes of data in
only 250 GB of space
• Instant decode of any region without loading the entire image
• Supported directly in all applications
14
Do you think compression will help manage UAV imagery?
No 24%
Yes 76%
No
Yes
(blank)
Compression ratios
15
Original 3.04 GB TIFF
Compressed lossless 2:1 451.8 MB
Compression ratios
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Original 3.04 GB TIFF
Compressed lossy 20:1 114 MB
Compression ratios
17
Original 3.04 GB TIFF
Compressed lossy 100:1 22.8 MB
Compression ratios
18
Original 3.04 GB TIFF
Compressed 500:1 4.6 MB
Compression ratios
19
Original 3.04 GB TIFF
Compressed 1000:1 2.3 MB
Compression ratios
20
Compressed 2000:1 1.1 MB
Original 3.04 GB TIFF
21
Image Distribution
• Send or share files directly?
• Doesn’t scale well
• High bandwidth, slow
• Image Servers
• Speed
• Ease of administration
• Scalability
• Cost
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Image Distribution
• Express Server
• Serves compressed images
• Easy to manage
• Unlimited data and users
Business Opportunities
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• Agricultural
• Search and rescue
• 911 Emergency response
• Data collection
Advances for UAV
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• Colorado County Obtains COA to Fly UAS http://blog.lidarnews.com/colorado-county-obtains-coa-to-fly-uas
• Submersibles
• Parachute systems
Resources
Rocky Mountain UAS Professionals http://www.meetup.com/RockyMountainUnmanned/
UAS MAPPING 2014 Reno ASPRS UAS Technical Demonstration and Symposium
October 21-22, Reno, NV
http://uasreno.org
www.uavs.org
www.faa.gov
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October 7th - Denver workshop
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