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Tiling functions and Gabor orthonormal basis
(Academic Press Inc Elsevier Science, 2020-01)
We study the existence of Gabor orthonormal bases with window the characteristic function of the set Ω=[0,α]∪[β+α,β+1] of measure 1, with α,β>0. By the symmetries of the problem, we can restrict our attention to the case ...
Time–frequency shift invariance and the Amalgam Balian–Low theorem
(Academic Press Inc Elsevier Science, 2016-11)
We consider smoothness properties of the generator of a principal Gabor space on the real line which is invariant under some additional translation–modulation pair. We prove that if a Gabor system on a lattice with rational ...
Scaled quamtum mechanical (sqm) force field for amino-oxo tautomer of 1, 5 dimethylcytosine
(Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia, 2011-11)
We have performed a force field calculation for the amino-oxo tautomer of 1, 5- dimethylcytosine at B3LYP/6-31G* level following the refinement and the scaling methodologies. Quantum mechanical calculations were carried ...
Biometric iris recognition using radial basis function neural network
The consistent and efficient method for the identification of biometrics is the iris recognition in view of the fact that it has richness in texture information. A good number of features performed in the past are built ...
Dilemas presupuestales relacionados con el cambio climático
(Universidad Católica de Colombia. Facultad de Ciencias Económicas y Administrativas, 2015-01)
O aquecimento global, embora se trate de uma hipótese verdadeira ou falsa, tem sido incorporado na elaboração de políticas tanto no âmbito nacional quanto no internacional. Recomenda-se que as finanças públicas participem ...
Dilemas presupuestales relacionados con el cambio climático.
(Universidad Católica de Colombia, 2015-01-01)
El calentamiento global, bien se trate de una hipótesis verdadera o falsa, ha sido incorporado en la elaboración de políticas tanto en el ámbito nacional como internacional. Se recomienda que las finanzas públicas participen ...
2-D Continuous Wavelet transform for ESPI phase-maps denoising
(Elsevier, 2013-04)
In thiswork we introduce a 2-D Continuous Wavelet Transform (2D CWT) method for denoising ESPI phase-maps. Multiresolution analysis with 2-D wavelets can provide high directional sensitivity and high anisotropy which are ...
A 2-D Continuos Wavelet Transform method for InSAR phase-maps Denoising
(SPIE, 2013-07)
Analysis of Interferometric Synthetic Aperture Radar (InSAR) phase–maps with large wide band is still a challenging problem that requires the development of robust methods. This paper presents a 2–D Continuous Wavelet ...
Classificação de tábuas de madeira usando processamento de imagens digitais e aprendizado de máquina
(Universidade Estadual Paulista (Unesp), 2014-12-02)
O setor madeireiro no Brasil representa um forte componente da economia nacional, participando significativamente no Produto Interno Bruto (PIB) brasileiro. O segmento de madeira processada mecanicamente faz parte desse ...