Catastrophic approach to satellite imagery utilization on network-based flight simulators

Eugene L. Levin*, Igor V. Ternovskiy

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


Presently, there are many technological and industrial efforts for development of virtual flight simulators, usually based on networked technologies. In order to solve the problems of real time availability and realistic quality of simulators, source data images and digital terrain models (DTM) should have some generalized structure, which supposes different imagery resolution and different amount of detail on each level of 3-D simulation. One of the central problems is geotruthing of satellite imagery with realistic accuracy requirements with respect to DTM. Traditionally such geotruthing can be achieved by means of geo control points measurements. This process is labor intensive and requires special photogrammetric operator skills. In order to avoid such a process an algorithm of terrain and image models singularity's recognition based on Catastrophe theory is investigated in this paper. This approach does not require training but operates with direct comparison of the analytical manifolds from DTM with those actually extracted from the image. The technology described in this paper, the "Catastrophe Approach", and algorithms of satellite imagery treatment may be implemented in a multi-level image pyramid flight simulators. Theoretical approaches and practical realization indicates that the Catastrophe Approach is easy-to-use for a final customer and can be implemented on-line to networked flight simulators.

Original languageEnglish
Pages (from-to)87-95
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2001
Externally publishedYes
EventApplications and Science of Neural Networks, Fuzzy Systems, and Evolutionary Computation IV - San Diego, CA, United States
Duration: 31 Jul 20012 Aug 2001


  • Catastrophe Theory
  • Flight Simulators
  • GIS
  • Photogrammetry


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