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Parallel Algorithms of Discrete Fourier Transform for Earth Surface Modeling

Chapter
Part of the Lecture Notes in Geoinformation and Cartography book series (LNGC)

Abstract

One of the important problems in the use of remote sensing from satellites is three-dimensional modeling of surface—fragments both dynamic (e.g., ocean surface) and slowly varying ones. Some researchers propose the use of methods that are based on the discrete Fourier transform (DFT). For such an approach in the dynamic case, the time of transform implementation is critical. By decreasing this length of time, one can increase the modeled fragment size, thereby improving quality and model authenticity. Multiprocessor systems and graphic processors allow the use of special technology for parallel computations to decrease implementation time. This chapter presents the published approaches, as well as the author's approach, to DFT parallel algorithms for this particular problem.

Keywords

Remote sensing 3D modeling Discrete fourier transform Parallel algorithms 

Notes

Acknowledgments

This research was financially supported by the Russian Foundation for Basic Research, project No. 12-07-00751, 12-01-00822, 11-07-12060, 11-07-12059.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Image Processing System Institute of RASSamaraRussian Federation

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