Mysina Natalia Yu. RussiaSaratovSaratov State University, 410012, Russia, Saratov, Astrakhanskaya street, 83410010NataliaMysina@yandex.ru Author's articles Digital Speckle Photography with Correlation Processing of Spatial Spectrum of Specklegram for Determination of Micro Displacement of Scattering Object Technique of Digital Laser Speckle-Photography for Measurement of Scattered Object Microdisplacement