Performance of intensity-based non-normalized pointwise algorithms in dynamic speckle analysis
Research output: Contribution to journal › Article › Scientific › peer-review
|Number of pages||15|
|Publication status||Published - 17 Sep 2015|
|Publication type||A1 Journal article-refereed|
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.