High-accuracy direct aerial platform orientation with tightly coupled GPS/INS system : executive summary.

Details

• Creators:
  Grejner-Brzezinska, Dorota A. ; Toth, Charles
• Corporate Creators:
  Ohio. Dept. of Transportation
• Subject/TRT Terms:
  • Global Positioning System
  • Geographic information systems
  • Photography
  • Photography in road inspection
  • Roads--Inspection--Ohio
  • Geographic information systems--Ohio
  • Global Positioning System
  • Digital mapping
• Publication/ Report Number:
  FHWA/OH-2004/013
• Resource Type:
  Tech Report
• Geographical Coverage:
  Ohio
• Edition:
  Executive summary.
• Corporate Publisher:
  Ohio. Dept. of Transportation
• Abstract:
  Obtaining sensor orientation by direct measurements is ; a rapidly emerging mapping technology. Modern GPS ; and INS systems allow for the direct determination of ; platform position and orientation at an unprecedented ; accuracy. In airborne surveying, aircraft trajectory and ; platform orientation can be determined at the level of ; few cm and 20-30 arcsec, respectively at an almost ; continuous time scale. The use of such integrated ; GPS/INS systems offers immediate benefits for largeformat ; camera-based airborne surveying by ; substantially reducing the need for ground control and ; by basically eliminating aerial-triangulation, except for ; system calibration. For emerging sensors such as ; LIDAR, RADAR, multi-/hyperspectral imagers, ; however, the use of the direct orientation systems is ; mandatory since indirect methods such as control ; point-based aerial-triangulation are not feasible. ; ODOT Aerial Engineering has been operating an ; airplane with a large-format Zeiss Jena LMK2000 ; camera. The introduction of a modern GPS/INS-based ; direct orientation system was not only highly desirable ; for economic reasons, but also mandatory if ODOT ; wanted to keep up with technological developments. ; Since ODOT predominantly performs corridor surveys ; over the highway infrastructure, the use of direct ; orientation makes it even more attractive in this case, ; since the savings due to the elimination of control ; points are quite substantial. By establishing a ; GPS/INS-based direct orientation technology for ; ODOT aerial operations, the foundations was given for ; future imaging sensor extensions such as the ; introduction of LIDAR systems or the like.
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• Format:
  PDF
• Funding:
  14661(0)
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/18469/dot_18469_DS1.pdf
• File Type:
  [PDF - 20.97 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:f7a8ba7c186ce32c7cfc752db44c39f500998d337264d3b83a1e3ea0a3146835