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

Elena Stoykova | Zendy; Dimazarova | Zendy; Nataliya Berberova | Zendy; Atanas Gotchev | Zendy

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

Author(s) -

Elena Stoykova,

Dimazarova,

Nataliya Berberova,

Atanas Gotchev

Publication year - 2015

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.23.025128

Subject(s) - speckle pattern , pointwise , metrology , optics , algorithm , histogram , speckle noise , computer science , speckle imaging , intensity (physics) , artificial intelligence , computer vision , mathematics , physics , image (mathematics) , mathematical analysis

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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