23bb278fc9786a1d1cefebba5f8c7bb0.ppt
- Количество слайдов: 19
11 th Annual Z/I Camera Conference Post Hurricane Katrina & Rita 6 -inch DMC Digital Orthophotography February 2007
3001 Corporate Profile • Founded in 1965 • Turnkey Geospatial Solutions • Geospatial Data Acquisition • 1 st DMC Owner in North America • 12 Aircraft and 11 cameras and sensors • ISO 9001 Registered • Core Businesses • Federal Services • Intel-Defense Solutions • Civil Works • Land. Air (airborne flight ops) 2
3001 Core Competencies • • 3 Aerial Photography GIS Services Imagery Analysis Li. DAR Mapping Surveying Consulting Services
Project Description • CLIENT: New Orleans Regional Planning Commission (NORPC) and Partner Agencies. • STUDY AREA: 3, 000 square miles in pocket areas across southern Louisiana for regions affected by Katrina and Rita. • NEED: Post-Katrina and Rita digital orthophotography for urbanized areas and levee locations affected by the hurricanes. 4
Project Description • DATA ACQUISITION: • Spring 2006 flights • 4, 600’ AGL • 60% forward lap, 30% sidelap • 18, 950 images flown • DATA PROCESSING: • 2 shifts for A/T and ortho generation • Lots of manual edits in Photo. Shop for sun glare • PRODUCTS: 5 • DMC 6 -inch orthophotos • Ground control Reports • Aerotriangulation Reports • Ortho-rectified Mosaics
Project Description • PRODUCT APPLICATIONS: • Storm-damage environmental assessment • Levee mapping and analysis • Debris mapping and analysis (above-water and near-shore) • Shoreline change detection • General emergency response and preparedness for future events 6
The Z/I DMC Was Selected Because: • • Design Format – 8 CCD Frame Array (~14, 000 X 7, 000 Pixel Frame) Pixel Resolution – 1. 5” To 2 M Pixel Size Radiometric Resolution – 12 -bit Native Resolution Multispectral Bands – Panchromatic, RGB, And Near IR With Overlapping Spectral Response • Applications – Base Mapping, Engineering Studies, Photogrammetry, Remote Sensing 7
NORPC & Partners DMC Mission Green, Yellow, and Pink Boxes are project study areas
Detail of the New Orleans Project Area NOTE: Project areas were separated based on funding & client partners • Design Format – 8 CCD Frame Array (~14, 000 X 7, 000 Pixel Frame) • Pixel Resolution – 1. 5” To 2 M Pixel Size 9
Data Acquisition Issues • Many of the priority areas were covered by 50% or more water, and the weather was uncooperative. Therefore, many areas had sun glare on the water during the acquisition window. • Airborne GPS problems for part of the project required cross-strip flights to allow traditional aerotriangulation to be performed. NOTE: Fortunately the DMC can still be used without ABGPS 10
Sun Glare on Water for Raw Mosaics 11
Final Mosaic with Sun Glare Minimized 12
City of New Orleans Orthos 13
NORPC DMC Orthos (Sample 1) New Orleans, LA. Inner Harbor Navigation Canal Note the Blue Roofs 14
Claiborne Ave Bridge to Chalmette (Sample 2) 15
Levee Repairs (Sample 3) 16
Flooded & Destroyed Homes (sample 4) 17
Conclusions • The Z/I DMC is a Very Versatile Digital Camera System. • Multiple Products and Applications Can Be Easily Delivered. • Ability to work without ABGPS and IMU can make the difference between success and failure. • This project is helping Louisiana recover and prepare. • The clients are very happy with the final 18 products.
For More Information Jay S. Arnold jarnold@3001 inc. com 256. 327. 9377 Ray Brouillette rbrouillette@3001 inc. com 866. GEO. 3001 www. 3001 inc. com


