Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
Wisconsin Aerial Imagery- 2005 -
Ted Koch, State CartographerWI State Cartographer’s Office
Univ. of Wisconsin-Madisonwww.wisc.edu/sco
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
High Resolution Images(< 1 meter; i.e. 6”, 12”, 18”)
• 2005 a banner year for digital orthophoto acquisition.
• Approx. 60% (~20 m acres) of state’s area.
• Value - approx. $2.5 million.
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
What’s a Digital Orthophoto?
• Aerial photo– Captured by film-based or digital camera.– Contains distortions due to differences in
terrain elevation and aircraft position.– Does not have constant scale across the
image.
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
What’s a Digital Orthophoto?
• Digital Image produced by:– Geometric correction of the image– Unwarping the effects of distortion due to
terrain and camera position.
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
What is a Digital Orthophoto?
• Produced from a variety of inputs:– Digital image– Control – values of known points– Terrain Model – DEM or DTM– Image rectification to terrain model, and fit to a
map projection– Metadata
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
2005 Ortho Acquisition
• Statewide
• Local (counties and municipalities)
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
Statewide
• NAIP (National Agricultural Imagery Program)
– Nationwide program, administered by the USDA-FSA
– Acquired for crop compliance programs– Flown during growing season
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
Statewide
• NAIP Products:– Natural color – Two resolutions:
• 1-meter ortho (matches w/i 3-meters of DOQQ reference image)
• 2-meter geo-rectified (matches w/i 10 meters of DOQQ reference image)
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
NAIP Image
Prescott, Pierce County
(from MN
coverage)
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
Statewide
• NAIP Products: 1-Meter Ortho– Format: DOQQ or compressed county
mosaic– UTM coordinate system, NAD 83– 10% cloud cover allowed– Base for “common land unit boundaries”
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
Statewide
• NAIP in Wisconsin - 2005:– 1-meter statewide planned– Funding:
• FSA - 80-90%• Cooperative funding from state organizations:
– DNR - $150,000
– DATCP - $20,000
– 10 WI counties - $~$5,000 each
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
Statewide
• NAIP Wisconsin contact:Larry CutforthUSDA-FSA, GIS Specialist608/662-4422, Ext [email protected]
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
Local
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
Black & White Orthos1” = 100’ scale
18” & 6” resolution(Photos courtesy Ayres Assoc)
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
Black & White Orthos1” = 50’ scale
18” & 6” resolution(Photos courtesy Ayres Assoc)
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
Black & White Orthos1” = 100’ scale
12” & 6” resolution(Photos courtesy Ayres Assoc)
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
Black & White Orthos1” = 50’ scale
12” & 6” resolution(Photos courtesy Ayres Assoc)
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
Natural Color Orthos1” = 50’ & 1” = 100’ scale
3” resolution(Photos courtesy Ayres Assoc)
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
CoordinationAccomplished thru three major regional consortia:- SEWRPC- EC/NC/BL RPC- SW Counties
- Next presentation will cover in more detail
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
Aerial Technologies
• Traditional:– Camera & film – Scanning– Ground control + ground targets
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
Aerial Technologies
• Recent:– Airborne GPS (reduces need for ground control)
– Forward motion compensation and inertial measurement units (IMUs)
– Digital cameras (cutting edge)
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
Digital Camera
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
National Activities
• What’s under discussion:– NSGIC Proposal - Funding– USGS Proposal - Funding– FGDC/Am Nat’l Stds Institute (ANSI) -
Digital Ortho Framework Standard – Currently in draft review (July, 2004)
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
Conclusion
• Impacts – 2005, lots of data (statewide & local)
• Future scenario(s)– Long term vision, & improved coordination– Stable and predictable funding– Plan for 2010– Technological advances (i.e., digital cameras, near
real-time image processing, etc.)
Ted Koch, Wisconsin State Cartographer’s Office
WLIA 2005 Annual ConferenceFebruary 24th, 2005
Wisconsin Aerial ImageryWisconsin Aerial Imagery
Questions ?