Close-range geophotogrammetric mapping of trench walls using multi-model stereo restitution software

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Methods for mapping geologic features exposed on trench walls have advanced from conventional gridding and sketch mapping to precise close-range photogrammetric mapping. In our study, two strips of small-format (60 {times} 60) stereo pairs, each containing 42 photos and covering approximately 60 m of nearly vertical trench wall (2-4 m high), were contact printed onto eight 205 {times} 255-mm transparent film sheets. Each strip was oriented in a Kern DSR15 analytical plotter using the bundle adjustment module of Multi-Model Stereo Restitution Software (MMSRS). We experimented with several systematic-control-point configurations to evaluate orientation accuracies as a function of the number and ... continued below

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14 p.

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Coe, J.A.; Taylor, E.M. & Schilling, S.P. June 1, 1991.

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Description

Methods for mapping geologic features exposed on trench walls have advanced from conventional gridding and sketch mapping to precise close-range photogrammetric mapping. In our study, two strips of small-format (60 {times} 60) stereo pairs, each containing 42 photos and covering approximately 60 m of nearly vertical trench wall (2-4 m high), were contact printed onto eight 205 {times} 255-mm transparent film sheets. Each strip was oriented in a Kern DSR15 analytical plotter using the bundle adjustment module of Multi-Model Stereo Restitution Software (MMSRS). We experimented with several systematic-control-point configurations to evaluate orientation accuracies as a function of the number and position of control points. We recommend establishing control-point columns (each containing 2-3 points) in every 5th photo to achieve the 7-mm Root Mean Square Error (RMSE) accuracy required by our trench-mapping project. 7 refs., 8 figs., 1 tab.

Physical Description

14 p.

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INIS; OSTI as DE91013105

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  • 1991 ACSM/ASPRS (American Society for Photogrammetry and Remote Sensing) annual conference, Baltimore, MD (United States), 25-29 Mar 1991

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  • Other: DE91013105
  • Report No.: CONF-9103172--2
  • Grant Number: AI08-78ET44802
  • Office of Scientific & Technical Information Report Number: 138127
  • Archival Resource Key: ark:/67531/metadc622297

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • June 1, 1991

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  • June 16, 2015, 7:43 a.m.

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  • April 18, 2016, 6:28 p.m.

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Coe, J.A.; Taylor, E.M. & Schilling, S.P. Close-range geophotogrammetric mapping of trench walls using multi-model stereo restitution software, article, June 1, 1991; Denver, Colorado. (digital.library.unt.edu/ark:/67531/metadc622297/: accessed November 12, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.