Accession Number : ADA019655

Title :   Vector Evaluation of Triangulation Camera Parameters from Star Photographs.

Descriptive Note : Environmental Research Papers,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS HANSCOM AFB MASS

Personal Author(s) : Quesada,Antonio F.

Report Date : 21 AUG 1975

Pagination or Media Count : 19

Abstract : The orientation and focal length of triangulation cameras that are used for observing the motions of chemical tracers deposited in the upper atmoshere can be determined by applying vector and matrix methods. Position measurements on star calibration photographs of as few as five star images yield good estimates of parameter values and their standard deviation. Since the computations require input data from pairs or triplets rather than from individual stars, the stellar data are very efficiently utilized. The methods developed are well suited to implementation on digital data processors. (Author)

Descriptors :   *Photogrammetry, *Triangulation, Stars, Photographic images, Vector analysis, Astronomical cameras, Orientation(Direction), Matrices(Mathematics), Position finding, Data processing, Chemicals, Tracer studies, Upper atmosphere, Transformations(Mathematics), Subroutines, Digital computers

Subject Categories : Cartography and Aerial Photography
      Computer Programming and Software
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE