wisconsin aerial imagery ted koch, wisconsin state cartographer’s office wlia 2005 annual...

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 139Larry.Cutforth@wi.usda.gov

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 ?