GIS-44: PHOTOGRAMMETRY STANDARDS AND INSTRUMENTATION

Order No:

GIS-44

Total Length:

90 minutes



Calibration of a Photogrammetric Image Scanner

Reference No:

GIS 44-1

Conversion of hardcopy photographs to digital form will be a requirement for the coming years, particularly for large scale applications. The growing acceptance of digital orthophotos has underscored this need. Methods are presented for analyzing and adjusting the geometric and radiometric characteristics of a photogrammetric scanner. Some results for a particular instrument are shown.

Lecturer:

  • James Bethel, Purdue University, School of Civil Engineering, West Lafayette, IN

Suitability for
Level of
Instruction:

  • University (Undergraduate)
  • Advanced Research
  • Professional

Duration:

25 minutes

Year of
Presentation:

1992

 

Standard and Quality Control Procedures for Volume Inventories

Reference No:

GIS 44-2

This paper addresses the standardization of volume analysis, by photogrammetric methods. It summarizes the evolving proposed ASTM Standard in its current form. It covers the required duties of the plant personnel and the photogrammetric personnel, in-depth equipment requirements, their calibration and operation, step-by-step procedures covering all phases of control, photography, stereo compilation, reporting processes, base map and perimeter uses and second-party checking.

Lecturer:

  • Bernard W. Solomon, Aerial Design Data, N. Huntingdon, PA

Suitability for
Level of
Instruction:

  • University (Undergraduate)
  • Advanced Research
  • Professional

Duration:

24 minutes

Year of
Presentation:

1992

 

Comparisons of Accuracies Obtained from Various Leica Photogrammetric Workstations

Reference No:

GIS 44-3

The tests include interior and exterior orientation of individual stereomodels followed by measurements of checkpoints. The internal results of the orientations, the external comparisons between the photogrammetric measurements and the known ground coordinates of the checkpoints are reviewed. The second stage involves the comparison of automated digital terrain models from digital workstations with manual measurements on analog or analytical equipment. Thirdly, comparisons are made of the results of a small block of triangulation measured on both analytical and digital workstations. The instruments used are the following: analogue workstation Kern PG21; analytical workstations Kern DSR14, Wild BC3, Leica SD2000, Leica SD3000; scanners Sharp JX-600, Helava DSW100; digital photogrammetric workstations DVP, Helava DPW770, Helava DPW670. To investigate the digital systems in more detail, images are scanned at more than one pixel size.

Lecturer:

  • A. Stewart Walker, Leica AG, Switzerland

Suitability for
Level of
Instruction:

  • University (Undergraduate)
  • Advanced Research
  • Professional

Duration:

19 minutes

Year of
Presentation:

1992

Suggested
Presentations:

GIS-36, GIS-45

 

DEM Generation with JERS-1 Stereo Data

Reference No:

GIS 44-4

Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) has a long track stereo capability for the generation of Digital Terrain Model with 0.6 Base-to-Height Ratio (B/H). JERS-1 data has a similar stereo mapping capability, and its stereo data was used to estimate the accuracy of the extracted terrain data with Outer Orientation Method and Satellite Orbit Parameter Method. The relative error for the height was 57m, and it was found that 1:1200,000 scale map could be possible with ASTER data which has a spatial resolution 15m.

Lecturer:

  • Yoshinori Miyazaki, Geological Survey of Japan, MITI

Suitability for
Level of
Instruction:

  • University (Undergraduate)
  • Advanced Research
  • Professional

Duration:

19 minutes

Year of
Presentation:

1992

Suggested
Presentations:

GIS-42-4

 

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