6533b86dfe1ef96bd12c9ecb

RESEARCH PRODUCT

Temporal difference method for processing dynamic speckle patterns

Luis Martı́-lópezR.a. Martínez-celorioHumberto CabreraRolando González-peña

subject

Dynamic speckleComputer sciencebusiness.industrySpeckle noiseImage processingInterval (mathematics)Atomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsSpeckle patternOpticsElectronic speckle pattern interferometryElectrical and Electronic EngineeringPhysical and Theoretical ChemistryTemporal difference learningbusiness

description

A temporal difference method for processing dynamic speckle images is proposed. In the method two speckle images of an object, separated by a time interval, are subtracted one from the other to detect whether the speckle structure has changed or not. The rationale of the method is discussed. A variant of the method that allows measuring the area of an activity zone surrounded by a static region is tested in digital simulations. As a demonstrative experiment, that variant is employed to characterize the drying of a damp patch in filter paper.

yearjournalcountryeditionlanguage
2010-12-01Optics Communications
https://doi.org/10.1016/j.optcom.2010.07.073