Abstract
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.
Original language | English |
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Pages (from-to) | 25128-25142 |
Number of pages | 15 |
Journal | Optics Express |
Volume | 23 |
Issue number | 19 |
DOIs | |
Publication status | Published - 17 Sept 2015 |
Publication type | A1 Journal article-refereed |
Publication forum classification
- Publication forum level 2
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics