Airborne LiDAR Reflective Linear Feature Extraction for Strip Adjustment and Horizontal Accuracy Determination

Ohio Department of Transportation's (ODOT's) Office of Aerial Engineering (OAE) has been using an Opetch 30/70 ALTM airborne Light Detection and Ranging (LiDAR) system for about four years. The introduction of LiDAR technology was a major development towards improving the mapping operations. The overall experiences are excellent as evidenced by numerous projects where highly accurate surface data were produced in an unprecedentedly short time. As is typically with new technology, OAE has identified areas for improvements in terms of achieving better accuracy and increasing data processing efficiency. In particular, the horizontal accuracy of the LiDAR product required further attention. The objectives of this research were to (1) introduce ground control to LiDAR by using road pavement makings that can be precisely surveyed by ODOT's system; (2) preform a strip adjustment for seamless integration of strips into the final product; (3) improve the horizontal accuracy in order to better characterize the final product; and (4) improve accuracy (both horizontal and vertical) to use ground control that is less labor-intense, requires no or limited surveying and imposes less restrictions in normal field operations. The ultimate objective of this research project was to advance the earlier developed LiDAR-specific ground control-based LiDAR data accuracy improvement technique by including existing natural and man-made objects as targets, in particular using pavement markings, and extending the methodology for handling both types of targets in a highly automated way. Obviously, the total elimination of the deployable targets was the desirable long-term research objective.

• Record URL:
  • http://worldcat.org/oclc/318903743/viewonline
• 
• Summary URL:
  • https://rosap.ntl.bts.gov/view/dot/18476
• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/18475
• Corporate Authors:

  Ohio State University, Columbus

  2070 Neil Avenue
  Columbus, OH  United States  43210

  Ohio Department of Transportation

  1980 West Broad Street
  Columbus, OH  United States  43223

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Toth, Charles K
  • 0000-0001-9461-4887
  • Grejner-Brzezinska, Dorota A
• Publication Date: 2009-2

Language

• English

Media Info

• Media Type: Print
• Features: Appendices; Bibliography; Figures;
• Pagination: 122p

Subject/Index Terms

• TRT Terms: Laser radar; Mapping; Reflectivity; Road markings
• Uncontrolled Terms: Data accuracy; Feature extraction; Linear features
• Subject Areas: Aviation; Data and Information Technology; Highways; Pavements;

Filing Info

• Accession Number: 01129609
• Record Type: Publication
• Report/Paper Numbers: FHWA/OH-2008/15
• Contract Numbers: 134316
• Files: NTL, TRIS, ATRI, USDOT, STATEDOT
• Created Date: May 29 2009 7:20AM