Identification of period and direction of monochromatic waves through the processing of optical images

Authors

  • Henrique Rapizo Universidade Federal do Rio de Janeiro; Laboratório de Instrumentação Oceanográfica; Programa de Engenharia Naval e Oceânica
  • Victor D'Ávila Universidade Estadual do Rio de Janeiro; Faculdade de Oceanografia
  • Nelson Violante-Carvalho Universidade Federal do Rio de Janeiro; Laboratório de Instrumentação Oceanográfica; Programa de Engenharia Naval e Oceânica
  • Uggo Pinho Petrobras- Segmento de Oceanografia Operacional
  • Carlos Eduardo Parente Universidade Federal do Rio de Janeiro; Laboratório de Instrumentação Oceanográfica; Programa de Engenharia Naval e Oceânica

DOI:

https://doi.org/10.11137/2014_1_36_45

Abstract

A new methodology to estimate the period and direction of monochromatic surface gravity waves is presented based on the processing of a sequence of images. The analysis focuses on the spatial-temporal variability of brightness on the image plane. One camera only is employed to record the water surface. The main motive is to come up with a simplified and practical configuration which allows its operational implementation either on the laboratory or on oil platforms or on top of buildings. The promising results correspond to experiments in a monochromatic wave tank. The image processing technique has proven to be a valuable tool for wave measurements.

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Published

2014-06-01

How to Cite

Rapizo, H. (2014) “Identification of period and direction of monochromatic waves through the processing of optical images”, Anuário do Instituto de Geociências. Rio de Janeiro, BR, 37(1), pp. 36–45. doi: 10.11137/2014_1_36_45.

Issue

Vol. 37 No. 1 (2014)

Section

não definida

License

This journal is licensed under a Creative Commons — Attribution 4.0 International — CC BY 4.0, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.