TUTCRIS - Tampereen teknillinen yliopisto

TUTCRIS

Performance of intensity-based non-normalized pointwise algorithms in dynamic speckle analysis

Tutkimustuotosvertaisarvioitu

Yksityiskohdat

AlkuperäiskieliEnglanti
Sivut25128-25142
Sivumäärä15
JulkaisuOptics Express
Vuosikerta23
Numero19
DOI - pysyväislinkit
TilaJulkaistu - 17 syyskuuta 2015
OKM-julkaisutyyppiA1 Alkuperäisartikkeli

Tiivistelmä

Intensity-based pointwise non-normalized algorithms for 2D evaluation of activity in optical metrology with dynamic speckle analysis are studied and compared. They are applied to a temporal sequence of correlated speckle patterns formed at laser illumination of the object surface. Performance of each algorithm is assessed through the histogram of estimates it produces. A new algorithm is proposed that provides the same quality of the 2D activity map for less computational effort. The algorithms are applied both to synthetic and experimental data.

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