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115 results on '"Alarcon-Aquino, Vicente"'

3. Real-time path planning for autonomous vehicle off-road driving.

Author

Ramirez-Robles, Ethery, Starostenko, Oleg, and Alarcon-Aquino, Vicente

Subjects
ARTIFICIAL neural networks, OPTICAL radar, LIDAR, COMPUTER vision, GRIDS (Cartography)
Abstract

Background: Autonomous driving is a growing research area that brings benefits in science, economy, and society. Although there are several studies in this area, currently there is no a fully autonomous vehicle, particularly, for off-road navigation. Autonomous vehicle (AV) navigation is a complex process based on application of multiple technologies and algorithms for data acquisition, management and understanding. Particularly, a self-driving assistance system supports key functionalities such as sensing and terrain perception, real time vehicle mapping and localization, path prediction and actuation, communication and safety measures, among others. Methods: In this work, an original approach for vehicle autonomous driving in off-road environments that combines semantic segmentation of video frames and subsequent real-time route planning is proposed. To check the relevance of the proposal, a modular framework for assistive driving in off-road scenarios oriented to resource-constrained devices has been designed. In the scene perception module, a deep neural network is used to segment Red-Green-Blue (RGB) images obtained from camera. The second traversability module fuses Light Detection And Ranging (LiDAR) point clouds with the results of segmentation to create a binary occupancy grid map to provide scene understanding during autonomous navigation. Finally, the last module, based on the Rapidly-exploring Random Tree (RRT) algorithm, predicts a path. The Freiburg Forest Dataset (FFD) and RELLIS-3D dataset were used to assess the performance of the proposed approach. The theoretical contributions of this article consist of the original approach for image semantic segmentation fitted to off-road driving scenarios, as well as adapting the shortest route searching A* and RRT algorithms to AV path planning. Results: The reported results are very promising and show several advantages compared to previously reported solutions. The segmentation precision achieves 85.9% for FFD and 79.5% for RELLIS-3D including the most frequent semantic classes. While compared to other approaches, the proposed approach is faster regarding computational time for path planning. [ABSTRACT FROM AUTHOR]

Published
2024
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5. A Multiresolution Machine Learning Technique to Identify Exoplanets

Author

Jara-Maldonado, Miguel, Alarcon-Aquino, Vicente, Rosas-Romero, Roberto, 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, Herrera-Alcántara, Oscar, editor, Ponce, Hiram, editor, and Castro-Espinoza, Félix A., editor

Published
2020
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11. Visual Remote Monitoring and Control System for Rod Braking on Hot Rolling Mills

Author

Starostenko, Oleg, Trygub, Irina G., Cruz-Perez, Claudia, Alarcon-Aquino, Vicente, Potap, Oleg E., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Carrasco-Ochoa, Jesús Ariel, editor, Martínez-Trinidad, José Francisco, editor, and Olvera-López, José Arturo, editor

Published
2017
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21. Breaking reCAPTCHAs with Unpredictable Collapse: Heuristic Character Segmentation and Recognition

Author

Cruz-Perez, Claudia, Starostenko, Oleg, Uceda-Ponga, Fernando, Alarcon-Aquino, Vicente, Reyes-Cabrera, Leobardo, 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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23. Multi-modal 3D Image Registration Based on Estimation of Non-rigid Deformation

Author

Rosas-Romero, Roberto, Starostenko, Oleg, Rodríguez-Asomoza, Jorge, Alarcon-Aquino, Vicente, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Martínez-Trinidad, José Francisco, editor, Carrasco-Ochoa, Jesús Ariel, editor, Ben-Youssef Brants, Cherif, editor, and Hancock, Edwin Robert, editor

Published
2011
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25. Facial Feature Model for Emotion Recognition Using Fuzzy Reasoning

Author

Contreras, Renan, Starostenko, Oleg, Alarcon-Aquino, Vicente, Flores-Pulido, Leticia, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Martínez-Trinidad, José Francisco, editor, and Carrasco-Ochoa, Jesús Ariel, editor

Published
2010
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41. Advances in Security and Privacy of Multimodal Interfaces

Author

Damaševičius, Robertas, Woźniak, Marcin, Alarcon-Aquino, Vicente, Ganchev, Ivan, and Wei, Wei

Subjects
InformationSystems_INFORMATIONINTERFACESANDPRESENTATION(e.g.,HCI), ComputerApplications_MISCELLANEOUS, Data_MISCELLANEOUS, ComputingMilieux_COMPUTERSANDSOCIETY
Abstract

Advances in Security and Privacy of Multimodal Interfaces

Published
2018

46. A Knowledge-base Framework for Analysis of Facial Expressions Using FACS and MPEG-4 Standards

Author

Renan Contreras, G., Starostenko, O., Alarcon-Aquino, Vicente, and Flores-Pulido, Leticia

Subjects
ОБЩЕСТВЕННЫЕ НАУКИ::Информатика [ЭБ БГУ]
Abstract

This paper presents the development of a knowledge-base framework that supports creation of quantitative models for recognition of basic and non-prototypical emotion using Ekmanґs Facial Action Coding System (FACS) as well as animation and definition parameters (FAPs and FDPs) of MPEG-4 standard. Among the well-known approaches adopted in the automatic emotion detection system, the rule-based fuzzy classification approach has been proposed for recognition of emotions and their intensities. The designed system that consists of the knowledge-base framework implemented using the ontology editor Protйgй and fuzzy classifier, has been tested in order to evaluate its capability for detection, indexing, classifying, and interpretation of facial expressions. This proposal permits to create novel models for precise facial feature detection as well as recognition and interpretation of basic and non-prototypical. These types of systems may be used in medicine, security, psychology and psychiatry, robotics, distance education, human-computer interaction, and others.

Published
2013

50. Reconfigurable Path Restoration Schemes for MPLS Networks

Author

Minero-Muñoz, Marcelino and Alarcon-Aquino, Vicente

Subjects
Makam, Simple Dynamic, MPLS, Reconfigurable Systems, Path Restoration, Haskin
Abstract

Multi-Protocol Label Switching (MPLS) is an alternative to integrate the traditional Internet Protocol (IP) routing and switching technologies because it provides end-to-end Quality of Service (QoS), guarantees Traffic Engineering, and support Virtual Private Networks (VPNs). However, MPLS must use path restoration schemes to guarantee the delivery of packets through a network. In this paper we present three reconfigurable architectures for the implementation of path restoration schemes, namely, Haskin, Makam, and Simple Dynamic. These schemes are implemented using an entity-based model that provides the advantage of reusability of entities, thus reducing the overall resource utilisation. The results show that Haskin and Makam schemes present similar resource utilisation. On the other hand, the simple dynamic scheme uses a similar entity-based model that provides a slight decrease in percentage utilisation when compared to those obtained for the two aforementioned schemes.

Published
2009

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