Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/36928
Título: Light intensity independence during dynamic laser speckle analysis
Palavras-chave: Biospeckle
Paint drying
Co-occurrence matrix
Data do documento: 1-Mai-2016
Editor: Elsevier
Citação: REIS, R. O.; RABAL, H. J.; BRAGA, R. A. Light intensity independence during dynamic laser speckle analysis. Optics Communications, [S.l.], v. 366, p. 185-193, May 2016. DOI: 10.1016/j.optcom.2015.12.062.
Resumo: We explore some different normalizations of current dynamic laser speckle activity measures searching for their performance with respect to the illumination inhomogeneity of the samples. Inertia Moment and Average Value of Differences of the co-occurrence matrix are compared using a paint-drying case study on a uniform sample where attenuation in a portion of the illuminated area is introduced using a neutral density filter. In this way, all environmental conditions being equal but non-uniform illumination permits the comparison on a better approximation to objectivity. The results presented show that it is possible to mitigate the effects of the illumination in the activities measured by the dynamic laser speckle.
URI: https://www.sciencedirect.com/science/article/pii/S0030401815303965
http://repositorio.ufla.br/jspui/handle/1/36928
Aparece nas coleções:DEG - Artigos publicados em periódicos

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