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Your search keyword '"Cordova-Esparza, Diana Margarita"' showing total 13 results
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13 results on '"Cordova-Esparza, Diana Margarita"'

1. Machine Translation of Texts from Languages with Low Digital Resources: A Systematic Review

Author

Benito-Santiago, Hermilo, Córdova-Esparza, Diana Margarita, Castro-Sánchez, Noé Alejandro, Herrera-Navarro, Ana-Marcela, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Pichardo Lagunas, Obdulia, editor, Martínez-Miranda, Juan, editor, and Martínez Seis, Bella, editor

Published
2022
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2. Telepresence System based on Simulated Holographic Display

Author

Córdova-Esparza, Diana-Margarita, Terven, Juan, Jiménez-Hernández, Hugo, Herrera-Navarro, Ana, and García-Huerta, Alberto Vázquez-Cervantes Juan-M.

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

We present a telepresence system based on a custom-made simulated holographic display that produces a full 3D model of the remote participants using commodity depth sensors. Our display is composed of a video projector and a quadrangular pyramid made of acrylic, that allows the user to experience an omnidirectional visualization of a remote person without the need for head-mounted displays. To obtain a precise representation of the participants, we fuse together multiple views extracted using a deep background subtraction method. Our system represents an attempt to democratize high-fidelity 3D telepresence using off-the-shelf components.

Published
2018

3. Training Artificial Neural Networks to Detect Multiple Sclerosis Lesions Using Granulometric Data from Preprocessed Magnetic Resonance Images with Morphological Transformations.

Author

Ponce de Leon-Sanchez, Edgar Rafael, Mendiola-Santibañez, Jorge Domingo, Dominguez-Ramirez, Omar Arturo, Herrera-Navarro, Ana Marcela, Vazquez-Cervantes, Alberto, Jimenez-Hernandez, Hugo, Cordova-Esparza, Diana Margarita, Cuán Hernández, María de los Angeles, and Senties-Madrid, Horacio

Subjects
MAGNETIC resonance imaging, ARTIFICIAL neural networks, IMAGE analysis, MATHEMATICAL morphology, SPINAL cord, IMAGE segmentation
Abstract

The symptoms of multiple sclerosis (MS) are determined by the location of demyelinating lesions in the white matter of the brain and spinal cord. Currently, magnetic resonance imaging (MRI) is the most common tool used for diagnosing MS, understanding the course of the disease, and analyzing the effects of treatments. However, undesirable components may appear during the generation of MRI scans, such as noise or intensity variations. Mathematical morphology (MM) is a powerful image analysis technique that helps to filter the image and extract relevant structures. Granulometry is an image measurement tool for measuring MM that determines the size distribution of objects in an image without explicitly segmenting each object. While several methods have been proposed for the automatic segmentation of MS lesions in MRI scans, in some cases, only simple data preprocessing, such as image resizing to standardize the input dimensions, has been performed before the algorithm training. Therefore, this paper proposes an MRI preprocessing algorithm capable of performing elementary morphological transformations in brain images of MS patients and healthy individuals in order to delete undesirable components and extract the relevant structures such as MS lesions. Also, the algorithm computes the granulometry in MRI scans to describe the size qualities of lesions. Using this algorithm, we trained two artificial neural networks (ANNs) to predict MS diagnoses. By computing the differences in granulometry measurements between an image with MS lesions and a reference image (without lesions), we determined the size characterization of the lesions. Then, the ANNs were evaluated with the validation set, and the performance results (test accuracy = 0.9753; cross-entropy loss = 0.0247) show that the proposed algorithm can support specialists in making decisions to diagnose MS and estimating the disease progress based on granulometry values. [ABSTRACT FROM AUTHOR]

Published
2024
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4. Audio-Visual Database for Spanish-Based Speech Recognition Systems

Author

Córdova-Esparza, Diana-Margarita, Terven, Juan, Romero, Alejandro, Herrera-Navarro, Ana Marcela, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Martínez-Villaseñor, Lourdes, editor, Batyrshin, Ildar, editor, and Marín-Hernández, Antonio, editor

Published
2019
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5. Sound Source Localization Using Beamforming and Its Representation in a Mixed Reality Embedded Device

Author

Valencia-Palma, Aldo, Córdova-Esparza, Diana-Margarita, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Pandu Rangan, C., Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Carrasco-Ochoa, Jesús Ariel, editor, Martínez-Trinidad, José Francisco, editor, Olvera-López, José Arturo, editor, and Salas, Joaquín, editor

Published
2019
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9. Vision System for 3D Reconstruction with Telecentric Lens

Author

Rico Espino, José Guadalupe, Gonzalez-Barbosa, José-Joel, Gómez Loenzo, Roberto Augusto, Córdova Esparza, Diana Margarita, Gonzalez-Barbosa, Ricardo, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Carrasco-Ochoa, Jesús Ariel, editor, Martínez-Trinidad, José Francisco, editor, Olvera López, José Arturo, editor, and Boyer, Kim L., editor

Published
2012
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