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Digital Image Analysis of Complex Periodical Viral Structures

  • A. Santisteban
  • N. Garćia
  • J. L. Carrascosa
  • E. Vinuela
Conference paper
  • 204 Downloads
Part of the Springer Series in Optical Sciences book series (SSOS, volume 31)

Abstract

Structures with two-dimensional translation symmetry are common among viruses. Digital image processing techniques can be used to study their electron micrographs, filtering the periodic structure from the non-periodic noise. We outline in section 2 the method that gives the best results, consisting of the transformation of the image to get its digital Fourier transform (DFT) matched to a pre-defined theoretic lattice-pass filter [1]. In section 3 we extend this technique to the case in which we have two periodic layers producing a moiré pattern that, in the usual presence of heavy noise, is nearly impossible to interpret by simple visual inspection. We apply this method in section 4 to the study of the capsid of the African Swine Fever virus.

Keywords

Digital Image Analysis African Swine Fever African Swine Fever Virus Periodic Layer Reciprocal Lattice Point 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    N.Garcia, A.Santisteban and J.L.Carrascosa, Proc. 2nd Scandinavian Conf. on Image Analysis, 444 (1981).Google Scholar
  2. 2.
    S.S.Rifman and D.M.McKinnon, TRW report 20634–6003-TU-00 (1974).Google Scholar
  3. 3.
    J.W.Cooley and J.W.Tukey, Math. Comput. 19, 297 (1965).CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1982

Authors and Affiliations

  • A. Santisteban
    • 1
  • N. Garćia
    • 1
  • J. L. Carrascosa
    • 2
  • E. Vinuela
    • 2
  1. 1.Centro de Investigación UAM-IBMUniversidad Autónoma de MadridMadrid 34Spain
  2. 2.Centro de Biología Molecular, C.S.I.C.Universidad Autónoma de MadridMadrid 34Spain

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