Stoykova E.Nazarova D.Berberova N.Gotchev A.2024-07-102024-07-102024-07-102024-07-102015-09-171094-408710.1364/OE.23.025128SCOPUS_ID:84943620686https://rlib.uctm.edu/handle/123456789/349Intensity-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.enArticle