Computer modeling of the imager for Mars Pathfinder

Mike K. Burkland, John B. Wellman, Peter H. Smith, Devon G. Crowe, Roger D. Tanner, Robert O. Reynolds

Research output: Contribution to journalConference article

1 Scopus citations

Abstract

A modified camera model of the Imager for Mars Pathfinder (IMP), initially developed at NASA's Jet Propulsion Laboratory (JPL), was used for calibration of the camera's optical and mechanical pointing parameters at the Lunar & Planetary Laboratory of the University of Arizona (UofA). These parameters were determined by comparing images of calibrated and surveyed geometric targets in the laboratory to the camera model predictions. Results of the calibration were applied to system testing of the IMP integrated with the Lander spacecraft at JPL to determine the pointing accuracy of the IMP and the relative orientation of the camera and Lander coordinate systems. The camera model achieves a 1σ pointing error in azimuth of 0.6 milliradians (mrad) and 6.0 mrad in elevation. The stereoscopic range finding error of the IMP is 1 mm at a range of 1 m to 10 cm at 10 m based on the camera model and the determined parameters.

Original languageEnglish (US)
Pages (from-to)86-97
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3132
DOIs
StatePublished - Dec 1 1997
EventOptomechanical Design and Precision Instruments - San Diego, CA, United States
Duration: Jul 31 1997Jul 31 1997

Keywords

  • Boresight
  • Computer model
  • Imager for mars pathfinder
  • IMP
  • Multispectral imaging
  • Scale
  • Stereo baseline
  • Stereoscopic camera
  • Toe-in
  • Viking

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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