USE OF GPS TO ENHANCE MAPPING BY PHOTOGRAMMETRY. FINAL REPORT

This research has sought to demonstrate the benefits of kinematic Global Positioning System (GPS) in conjunction with photogrammetric aerial triangulation for mapping purposes. The work was performed with the existing Indiana Department of Transportation (INDOT) aerial camera which is quite old, and while this affected the accuracy of the results, the demonstration of capability with a likely potential for excellent results was achieved. Ground point accuracies from the strip were in the sub-meter range with only a single control point. This is contrasted with full-model control requiring 50-80 control points for such a strip. In order to bring accuracies down to an acceptable level, i.e., sub decimeter, it will be necessary to retrofit the INDOT camera with a better shutter event signal (or obtain a new camera). A computer program for least squares adjustment of independent models has been developed. This would permit processing of data from INDOT Wild B8 stereoplotters. With a few implementation steps, INDOT would have an operational and production capability yielding significant productivity improvements.

  • Corporate Authors:

    Purdue University/Indiana Department of Transportation JHRP

    Purdue University, School of Civil Engineering
    West Lafayette, IN  United States  47907-1284

    Indiana Department of Transportation

    100 N Senate Avenue
    Indianapolis, IN  United States  46204

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Feeney, R
    • Bethel, J
    • van Gelder, B
    • Johnson, S
  • Publication Date: 1996-5-14

Language

  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 91 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00723812
  • Record Type: Publication
  • Report/Paper Numbers: FHWA/IN/JHRP-95/6, Proj No. C-36-72B
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Jul 11 1996 12:00AM