GENERALIZATION OF CARRE ALGORITHM

Authors

  • PEDRO AMERICO ALMEIDA MAGALHAES JUNIOR PONTIFICIA UNIVERSIDADE CATOLICA DE MINAS GERAIS
  • PERRIN SMITH NETO PONTIFICIA UNIVERSIDADE CATOLICA DE MINAS GERAIS
  • CLOVIS SPERB DE BARCELLOS UNIVERSIDADE FEDERAL DE SANTA CATARINA

Keywords:

PHASE SHIFTING TECHNIQUE, CARRE ALGORITHM, PHASE CALCULATION ALGORITHMS, MEASUREMENT.

Abstract

THE PRESENT WORK OFFERS NEW ALGORITHMS FOR PHASE EVALUATION IN MEASUREMENTS. SEVERAL PHASE-SHIFTING ALGORITHMS WITH AN ARBITRARY BUT CONSTANT PHASE-SHIFT BETWEEN CAPTURED INTENSITY SIGNS ARE PROPOSED. THE ALGORITHMS ARE SIMILARLY DERIVED AS THE SO CALLED CARRE ALGORITHM. THE IDEA IS TO DEVELOP A GENERALIZATION OF CARRE ALGORITHM THAT IS NOT RESTRICTED TO FOUR IMAGES. ERRORS AND RANDOM NOISE IN THE IMAGES CANNOT BE ELIMINATED, BUT THE UNCERTAINTY DUE TO ITS EFFECTS CAN BE REDUCED BY INCREASING THE NUMBER OF OBSERVATIONS. THE ADVANTAGES OF THE PROPOSED ALGORITHM ARE ITS PRECISION IN THE MEASURES TAKEN AND IMMUNITY TO NOISE IN SIGNS AND IMAGES.

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Published

2009-10-15

Issue

Vol. 6 No. 3 (2009)

Section

Articles

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