MORE ON DISTORTIONS BY FOCAL-PLANE SHUTTERS

Large-scale air photographs are often obtained with reconnaissance cameras which have focal-plane shutters. Normally these cameras are mounted in such a way that the shutter moves in the same direction as the aircraft. For stationary objects, this causes an enlargement of the photographic scale in the direction of the shutter movement. This distortion might introduce significant errors in measurements taken from large-scale air photographs. A graph is given which permits easy determination of relative scale distortions. /Author/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00991112
• Corporate Authors:

  American Society of Photogrammetry

  105 North Virginia Avenue
  Falls Church, VA  United States  22046
• Authors:
  • Nielsen, U
• Publication Date: 1975-2

Media Info

• Features: Figures; References;
• Pagination: p. 199-201
• Serial:
  • Photogrammetric Engineering and Remote Sensing
  • Volume: 41
  • Issue Number: 2
  • Publisher: American Society for Photogrammetry and Remote Sensing
  • ISSN: 0099-1112

Subject/Index Terms

• TRT Terms: Aerial photography; Cameras; Errors; Measurement; Optical distortion; Photointerpretation
• Old TRIS Terms: Air photointerpretation; Airborne cameras; Camera shutters; Distortion /optical/
• Subject Areas: Design; Highways;

Filing Info

• Accession Number: 00095966
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 2 1975 12:00AM