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Proceedings Paper

The influence of the image noises on error of laser beam center determination
Author(s): A. I. Imshenetskiy
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Paper Abstract

The research of noise's influence in the digital image of a laser beam on the error of its center definition with the help of the program of image's processing Image Center is carried out. The given program is used for processing of flow's visualization pictures in computer-laser refractometrical method. The program allows to make an individual filtration of the entered image from noise and to find the center of images brightness. During researches the influence of multiplicate, additive noise; their sums; the size and a spatial site of the beam on an error of definition of its center was studied. For the analysis of noises influence on the results of work of the program a line of images with obviously known characteristics of noise and a site of the center of a stain was generated. Parameters of modeled images were maximal approached to experimentally received values. By results of researches the dependences of displacement of beams center position on a signal/noise ratio were constructed and analyzed, recommendations for realization of experiments are given and the data on threshold values of noise at which it is possible to find the center of the beam with the given error are received.

Paper Details

Date Published: 16 February 2005
PDF: 8 pages
Proc. SPIE 5447, Lasers for Measurements and Information Transfer 2004, 54470H (16 February 2005); doi: 10.1117/12.610499
Show Author Affiliations
A. I. Imshenetskiy, Moscow Power Engineering Institute (Russia)

Published in SPIE Proceedings Vol. 5447:
Lasers for Measurements and Information Transfer 2004
Vadim E. Privalov, Editor(s)

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