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Inverse Grating Problem: Efficient Design of Anomalous Flexural Wave Reflectors and Refractors
(American Physical Society, 2019-01-11)
We present an extensive formulation of the inverse grating problem for flexural waves in which the energy of each diffracted mode is selected and the grating configuration is then obtained by our solving a linear system ...
Multivariate Kalman filtering for spatio-temporal processes
(Springer, 2022)
An increasing interest in models for multivariate spatio-temporal processes has been noted in the last years. Some of these models are very flexible and can capture both marginal and cross spatial associations amongst the ...
Substationarity for spatial point processes
(Elsevier Inc., 2019-05)
This article aims to introduce the concept of substationarity for spatial point processes
(SPPs). Substationarity is a new concept that has never been studied in the literature. Substationarity means that the distribution ...
Covariance functions for multivariate Gaussian fields evolving temporally over planet earth
(Springer-Verlag GmbH Germany, part of Springer Nature, 2019-07-18)
The construction of valid and flexible cross-covariance functions is a fundamental task for modeling multivariate space–
time data arising from, e.g., climatological and oceanographical phenomena. Indeed, a suitable ...
Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
(Journal of Visualized Experiments, 2019-01-29)
The aim of this article is to visually demonstrate the utilization of an interferometric method for encoding complex fields associated with coherent
laser radiation. The method is based on the coherent sum of two uniform ...
Self-similar behavior in semiconductor superlattices
(World Scientific Publishing Company, 2012)
The scattering of particles in fractal superlattices has been analyzed by means of the transfer matrix method. The fractal superlattice consists of alternating layers of semiconductor materials following the rule of a ...
Pinpointing spatio-temporal interactions in wildfire patterns
(Springer-Verlag, 2012-12)
The spatial and spatio-temporal patterns of wildfire incidence and their relationship to various geographical and environmental variables are analyzed. Such relationships may be treated as components in particular point ...
Two-level classifier ensembles for credit risk assessment
(Elsevier, 2012)
Many techniques have been proposed for credit risk assessment, from statistical models to artificial intelligence methods. During the last few years, different approaches to classifier ensembles have successfully been ...
Adaptive single-pixel imaging through turbid media
(Optica Publishing Group, 2022-07-11)
We present a system for imaging objects through non-homogeneous scattering media that works in an adaptive way by combining diffuse optical imaging (DOI) and single-pixel imaging (SPI) techniques. The experimental results ...
Guided Depth Completion Using Active Infrared Images in Time of Flight Systems
(Springer, 2023-06-27)
Depth information has been successfully used in many computer vision applications, but depth imaging sensors frequently provide missing values, mainly around objects boundaries. These invalid values and image gaps cause ...