AEROTRIANGULATION RESEARCH TO REDUCE GROUND CONTROL REQUIREMENTS
Aerotriangulation research conducted by the Wisconsin Department of Transportation to determine the minimum control configuration that would yiedl accurate photographic control with error-detection capability is described. A new aerotriangulation program package developed for the department's photogrammetry system was used. Conclusions are based on the results of four projects in which 1:3000-scale photography was used at a flying height of 457 m (1500 ft). In the test procedure, an adjustment that used all available control was taken as a basis of comparison in determining a minimum control standard, with redundancy, to allow for detection of single and multiple errors. Accuracies were determined based on the standard deviation of discrepancies among withheld-control points and pass-point movement. The relation between analytical instrumentation, control configuration, and program capabilities has resulted in standards that produce equal adjustments to different projects. The results indicate that the bridging distance between successive vertical wing points and successive horizontal picture points can be as much as six models and all control points can be in double-overlap areas. The new program package has greatly reduced field survey time and increased design flexibility. (Author)
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/0309029910
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Supplemental Notes:
- Publication of this paper sponsored by Committee on Photogrammetry and Aerial Surveys. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
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Authors:
- Holdridge, Robert H
- Publication Date: 1979
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 1-4
- Monograph Title: Aerial surveys, geometrics, surface drainage, ecological impacts and safety appurtenances
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Serial:
- Transportation Research Record
- Issue Number: 736
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Accuracy; Aerial surveying; Airport surface traffic control; Errors; Mathematical models; Photogrammetry; Traffic control; Triangulation
- Uncontrolled Terms: Aerial triangulation; Models
- Old TRIS Terms: Aerial surveys; Traffic control systems
- Subject Areas: Design; Highways; Operations and Traffic Management;
Filing Info
- Accession Number: 00316648
- Record Type: Publication
- ISBN: 0309029910
- Files: TRIS, TRB
- Created Date: Oct 27 1980 12:00AM