6533b839fe1ef96bd12a63d7

RESEARCH PRODUCT

Optical technique for classification, recognition and identification of obscured objects

Yevgeny BeidermanZeev ZalevskyJavier GarciaVicente MicóMina Teicher

subject

Computer sciencebusiness.industryFourier opticsComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONImage processingObject (computer science)Tracking (particle physics)Atomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsIdentification (information)Speckle patternOpticsPattern recognition (psychology)Electrical and Electronic EngineeringPhysical and Theoretical ChemistrybusinessImage resolution

description

Abstract The capability to classify, recognize and to identify objects from spatially low resolution images has high significance in security related applications especially in a case that recognition of camouflaged object is required. In this paper we present a novel approach in which the scenery containing obscured objects which we wish to classify, recognize or identify is illuminated by spatially coherent beam (e.g. laser) and therefore secondary speckles pattern is reflected from the objects. By special image processing algorithm developed for this research and which is basically based upon temporal tracking of the random speckle pattern one may extract the temporal signature of the object. And right after, to use it for its classification (e.g. its separation from the other objects in the scenery), its recognition and identification even in a case that the imager provides poor spatial resolution that by itself does not allow doing the specified detection related operations.

https://doi.org/10.1016/j.optcom.2010.06.059