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Listar *Documentos Académicos*-- M. en Ciencias del Proc. de la Info. por autor "20608"

Listar *Documentos Académicos*-- M. en Ciencias del Proc. de la Info. por autor "20608"

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  • 2-D Continuous Wavelet transform for ESPI phase-maps denoising 
    Escalante, Nivia; Villa Hernández, José de Jesús; De la Rosa Vargas, José Ismael; De la Rosa Miranda, Enrique; González Ramírez, Efrén; Gutiérrez, Osvaldo; Olvera Olvera, Carlos Alberto; Araiza Esquivel, María Auxiliadora (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 
    Escalante, Nivia; Villa Hernández, José de Jesús; De la Rosa Vargas, José Ismael; Olvera Olvera, Carlos Alberto; Alaniz Lumbreras, Daniel; Gutiérrez, Osvaldo (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 ...
  • A reduced search algorithm for speaker recognition 
    Miramontes de León, Gerardo; De la Rosa Vargas, José Ismael; Villa Hernández, José de Jesús; Araiza Esquivel, María Auxiliadora; Sifuentes Gallardo, Claudia (Instituto Tecnológico de Chihuahua, ELECTRO, 2005-10)
    In this work, a reduced search algorithm for vector quantization codebooks is applied as a way to reduce the risk of wrong decisions in an automatic speaker recognition system. Instead of a full search method, the algorithm ...
  • Abel Transform Inversion using Kalman Filter 
    González, Efrén; De la Rosa Miranda, Enrique; Arceo Olague, José Guadalupe; Villa Hernández, José de Jesús; De la Rosa Vargas, José Ismael; Saucedo Anaya, Tonatiuh; Berriel Valdos, Luis Raúl; Araiza Esquivel, María Auxiliadora (SPIE, 2013-07)
    Refractive index, temperature, pressure, velocity and many other physical magnitudes of phase objects in the refraction less limit are of great interest in engineering and science. Optical tomography is a technique used ...
  • Absolute measurements of thermal effusivity using the electropyroelectric technique 
    Ivanov, Rumen; Martínez Ordoñez, E. I.; Marín, Ernesto; Araujo Andrade, Cuauhtémoc; Alaniz Lumbreras, Daniel; Araiza Esquivel, María Auxiliadora; Villa Hernández, José de Jesús; De la Rosa Vargas, José Ismael (Elsevier, 2013-02)
    The so-called electropyroelectric technique uses amplitude modulated electrical current as excitation source of thermal waves in a pyroelectric sensor in contact with a liquid sample. Here it is showed that this technique ...
  • Acoustic individual identification in birds based on the band-limited phase-only correlation function 
    Pedroza Ramírez, Angel David; De la Rosa Vargas, José Ismael; Rosas, Rogelio; Becerra Sánchez, Aldonso; Villa Hernández, José de Jesús; Moreno, Gamaliel; González Ramírez, Efrén; Alaniz Lumbreras, Daniel (MDPI Publishers, 2020-03)
    A new technique based on the Band-Limited Phase-Only Correlation (BLPOC) function to deal with acoustic individual identification is proposed in this paper. This is a biometric technique suitable for limited data individual ...
  • An alternative approach to the tomographic reconstruction of smooth refractive index distributions 
    De la Rosa Miranda, Enrique; Berriel Valdos, Luis Raúl; González Ramírez, Efrén; Alaniz Lumbreras, Daniel; Saucedo Anaya, Tonatiuh; De la Rosa Vargas, José Ismael; Villa Hernández, José de Jesús; Torres Arguelles, Vianey; Castano, Víctor (SpringerEuropean Optical Society, 2013-06)
    Continuous, mathematically smooth Phase Objects with radial symmetry are reconstructed from cross sections of their refractive index distribution by a novel method, consisting of a linear combination of Gaussian basis ...
  • An alternative differential method of femtosecond pump-probe examination of materials 
    Ivanov, Rumen; Villa Hernández, José de Jesús; De la Rosa Vargas, José Ismael; Marín, Ernesto (Osa Publishing, 2011-05)
    We describe an alternative method for femtosecond pumpprobe beam examination of energy transport properties of materials. All already reported techniques have several drawbacks which limit precise measurements of reflection ...
  • An alternative method for phase-unwrapping of interferometric data 
    De la Rosa Miranda, Enrique; González Ramírez, Efrén; Villa Hernández, José de Jesús; Berriel Valdos, Luis Raúl; Olvera Olvera, Carlos Alberto; De la Rosa Vargas, José Ismael; Saucedo Anaya, Tonatiuh; Arceo Olague, José Guadalupe (European Optical Society, 2014-09)
    In this paper we present a novel algorithm for phase unwrapping where only a subset of data from the wrapped phase map is used to reconstruct the unwrapped phase map as a linear combination of radial basis functions (RBF’s). ...
  • Análisis comparativo de técnicas para el cálculo de la orientación de patrones de franjas 
    Escalante, Nivia; Villa Hernández, José de Jesús; De la Rosa Vargas, José Ismael (Centro de Investigación en Matemáticas, A.C., 2010-10)
    El presente documento muestra 3 de las técnicas utilizadas para el cálculo de la orientación de patrones de franjas, una buena estrategia del filtrado, es el cálculo de la estimación de orientación de franjas, para direccionar ...
  • Anisotropic phase-map denoising using a regularized cost-function with complex-valued Markov-random-fields 
    Villa Hernández, José de Jesús; Rodríguez Vera, Ramón; Quiroga Mellado, Juan Antonio; De la Rosa Vargas, José Ismael (Elsevier, 2010-02)
    In our recently reported work [1] (Villa et al., 2009) we derived a regularized quadratic cost function, which includes fringe orientation information, for denosing fringe pattern images. In this work we adopt such idea ...
  • Bayesian Entropy Estimation: Applications in Robust Image Filtering 
    De la Rosa Vargas, José Ismael; Villa Hernández, José de Jesús; González, Efrén; Gutiérrez, Osvaldo; De la Rosa, Enrique (IEEE Electronics, 2012-02)
    We introduce a new approach for image filtering in a Bayesian framework, in this case the probability density function (pdf) of the likelihood function is approximated using the concept of non-parametric or kernel estimation. ...
  • Bayesian Filtering and Some Markovian Random Fields for Image Restoration 
    De la Rosa Vargas, José Ismael; Villa Hernández, José de Jesús; González, Efrén; Araiza Esquivel, María Auxiliadora; Gutiérrez, Osvaldo; Escobar, María de la Luz; Fleury, Gilles (ROPECIEEE, 2011-11)
    The present work introduces an alternative method to deal with digital image restoration into a Bayesian framework, particularly, the use of a new half-quadratic function is proposed. The Bayesian methodology is based on ...
  • Bayesian nonparametric mrf and entropy estimation for robust image filtering 
    De la Rosa Vargas, José Ismael; Gutiérrez, Osvaldo; Villa Hernández, José de Jesús; González Ramírez, Efrén; De la Rosa Miranda, Enrique; Fleury, Gilles (ROPEC, 2012-11)
    We introduce an approach for image filtering in a Bayesian framework. In this case, the probability density function (pdf) of the likelihood function is approximated using the concept of non-parametric or kernel estimation. ...
  • Bironchigram processing method for quantitative evaluation of optical focusing mirrors 
    Rodríguez, Gustavo; Villa Hernández, José de Jesús; Ivanov, Rumen; De la Rosa Vargas, José Ismael (Elsevier, 2019-02)
    Since its proposal the Ronchi “ruling ”test has been considered as the most remarkable technique of the Schlieren family. Despite being based on fringe pattern generation and commonly interpreted in a qualitative way, it ...
  • Campos de Markov, Convexidad y No Convexidad en la Restauración de Imágenes 
    De la Rosa Vargas, José Ismael; Villa Hernández, José de Jesús; Miramontes de León, Gerardo; García Dominguez, Ernesto; Araiza Esquivel, María Auxiliadora; Sifuentes Gallardo, Claudia (Universidad Autónoma de Zacatecas, 2005-03)
    En el presente trabajo, presentamos algunos métodos alternativos para la restauración de imágenes. Dichos métodos están fundamentados en el uso de un tipo de cadenas de Markov conocidas mejor como Campos Aleatorios de ...
  • Chlorophyll fluorescence emission as a response of pulsed light based-leds in tomato plants 
    Olvera González, Ernesto; Alaniz Lumbreras, Daniel; Ivanov, Rumen; Villa Hernández, José de Jesús; De la Rosa Vargas, José Ismael; López Cruz, Irineo; Silos Espino, Héctor; Lara Herrera, Alfredo (Springer, 2013-02)
    The effects of pulsed light based-LEDs at eleven frequencies (0.1, 1, 10, 50, 100, 500 Hz, 1, 5, 10, 50 and 100 kHz) programmed at 50 % duty cycle were analyzed, obtaining important parameters of the fluorescence emission ...
  • Comparación de algoritmos de compresión de imágenes 
    Moreno Baez, Arturo; De la Rosa Vargas, José Ismael; Villa Hernández, José de Jesús (Universidad Autónoma de Zacatecas, 2008-03)
    En este trabajo se presenta la comparación de dos métodos ya utilizados para la codificación y compresión de imágenes fijas basados en técnicas de transformación. La aportación principal es la implementación en programación ...
  • Comparación de cuatro algoritmos que dan solución numérica a la deconvolución en sistemas monodimensionales 
    De la Rosa Vargas, José Ismael; Miramontes de León, Gerardo; García Dominguez, Ernesto; Esquivel, María; Villa Hernández, José de Jesús (Instituto Politécnico NacionalUniversidad Nacional Autónoma de México, 2007-03)
    En el presente trabajo se presenta la comparación de un algoritmo de deconvolución con respecto de otros tres algoritmos clásicos utilizados para deconvolución unidimensional de señales. El algoritmo fue propuesto y analizado ...
  • Comparación de cuatro algoritmos que dan solución numérica a la deconvolución en sistemas monodimensionales 
    De la Rosa Vargas, José Ismael; Miramontes de León, Gerardo; García Dominguez, Ernesto; Araiza Esquivel, María Auxiliadora; Villa Hernández, José de Jesús (IEEE Morelos, Mexico, 2004-11)
    En este trabajo se presenta la comparación de tres algoritmos clásicos utilizados para deconvolución unidimensional con respecto a un cuarto algoritmo, el cual ha sido propuesto y analizado en el laboratorio de Procesamiento ...

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