title: Performance of intensity-based non-normalized pointwise algorithms in dynamic speckle analysis.
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.
authors.forename: E
authors.initials: E
authors.lastname: Stoykova
authors.forename: D
authors.initials: D
authors.lastname: Nazarova
authors.forename: N
authors.initials: N
authors.lastname: Berberova
authors.forename: A
authors.initials: A
authors.lastname: Gotchev