Nonlinear joint transform correlator using one-dimensional Fourier transformation

dc.creatorRodríguez Díaz, Benigno
dc.creatorDubra, A
dc.creatorMartínez, Carlos
dc.creatorEscuder, Gonzalo
dc.creatorFerrari, José A
dc.date.accessioned2019-05-29T15:28:09Z
dc.date.accessioned2022-10-28T19:52:32Z
dc.date.available2019-05-29T15:28:09Z
dc.date.available2022-10-28T19:52:32Z
dc.date.created2019-05-29T15:28:09Z
dc.date.issued1998
dc.identifierRodríguez Díaz, Benigno, Dubra, A., Martínez, Carlos, Escuder, Gonzalo, Ferrari, José A. Nonlinear joint transform correlator using one-dimensional Fourier transformation [en línea] Optical Engineering, 1998, v. 37, no. 10
dc.identifierhttps://hdl.handle.net/20.500.12008/20761
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4974982
dc.description.abstractWe present a new method for processing the data in a nonlinear joint transform correlator (NJTC). The output of the NJTC is obtained after two steps. The first step consists of the acquisition of the joint power spectrum (JPS) of the images to be correlated. The JPS is in principle a bidimensional image. The second step is the calculation of the cross-correlation function. To do this, the JPS image is compressed to one dimension and a 1-D Fourier transform is performed. This significantly reduces the number of operations required to evaluate the cross-correlation. To improve the cross-correlation sensitivity, a degree of nonlinearity is introduced using an illumination level above the saturation threshold of the camera used to acquire the JPS.
dc.publisherSPIE
dc.relationOptical Engineering, 1998, v. 37, no. 10
dc.rightsLas obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad De La República. (Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. Nº 16 de C.D.C. de 07/10/2014)
dc.titleNonlinear joint transform correlator using one-dimensional Fourier transformation
dc.typeArtículo


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