Transcript Lee - American Society for Photogrammetry and Remote

Overview of USGS Calibration
Activities
U.S. Department of the Interior
U.S. Geological Survey
ASPRS 2005 Annual Conference, Baltimore, Maryland
1
ASPRS Camera Calibration Study
• Panel study completed in 1999
• Study findings and recommendations:
• Standards development inherently
governmental
• USGS should continue camera calibration
• USGS should develop methods for digital
sensors
ASPRS 2005 Annual Conference, Baltimore, Maryland
2
Analog camera calibration
upgrades
• Analog calibrations performed on custom-built
colliminator instrument since 1973
• Analog calibration growing to over 110 per year
• Modified to accommodate super-wide angle lenses
• Lighting and electronics upgrade 2003
• Seeking alternatives for Kodak glass plates
• Evaluating alternative to glass plates
• Will keep present analog calibration process
operational for the foreseeable future
ASPRS 2005 Annual Conference, Baltimore, Maryland
3
Interim Digital Capabilities
• Contract awarded to Pictometry to develop and
build a laboratory calibration capability for
small format digital cameras
• System delivered and operational at EROS
National Data Center delete this
• Calibration based on “cage”, Australis
software, and the SMAC model
• Calibrations being performed on research basis
ASPRS 2005 Annual Conference, Baltimore, Maryland
4
OSU In-situ Calibration Study
• Grant awarded to OSU in 2003 to develop
software to perform in-situ calibration
• In-situ range established in cooperation with
Ohio DOT
• Software delivered and final report delivered in
2004
• Created in situ test sites and software is being
testing
• Currently evaluating standards for in-situ sites
and testing in-situ calibration methods
ASPRS 2005 Annual Conference, Baltimore, Maryland
5
JACIE Activities
• Joint efforts by NASA, NGA, and USGS
to perform characterization of
commercial satellite products
• Space Imaging, Digital Globe, Orbview
• Extending into Aerial and International
arena
• Annual JACIE Workshops
• System and application support includes
Federal/State/Local government, Academia,
Vendors, and Users
ASPRS 2005 Annual Conference, Baltimore, Maryland
6
Extension of Stennis Test Site
for Product Characterizations
• Stennis Test range enhanced for
airborne platforms and digital cameras
• Cooperative agreement with NASA to
perform characterization of digital
orthophoto products
• Geopositional accuracy and spatial
resolution determination
• Acceptance letter and final report
provided to vendor stating level of
capbility
ASPRS 2005 Annual Conference, Baltimore, Maryland
7
IADIWG Formation
• Inter-Agency Digital Imagery Working Group established
• Cooperating agencies: BOR,BLM, COE, FSA, FWS,
NIST, NGA, NOAA, NRCS, USFS, and USGS
• Kickoff meeting held and draft charter developed
• Draft specifications, guidelines, and standards for digital
image acquisition being worked
• Host workshop to review draft specifications, guidelines,
and standards
• Draft Final presented to ASPRS PECORA 16 in October
2005
ASPRS 2005 Annual Conference, Baltimore, Maryland
8
Next steps
• Work with camera manufacturers to review and
approval factory calibration methods
• Work with data providers on camera acceptance
process and quality control guidelines
• Provide quality guidelines contract
organizations
• Establish new policies on camera calibration
for the United States
• Work with International groups
• LIDAR and other sensor characterization
ASPRS 2005 Annual Conference, Baltimore, Maryland
9
Long-range Plans
• Evolve camera calibration, product
characterization and quality checking into a
quality assurance program for The National
Map and partners
ASPRS 2005 Annual Conference, Baltimore, Maryland
10