Personal information

Gait Analysis, Computer Vision, Biometrics, Sports Analytics, Human Action Recognition
Spain

Activities

Employment (1)

Universidad de Las Palmas de Gran Canaria: Las Palmas de Gran Canaria, Islas Canarias, ES

2007-09-01 to present | Associate Professor (Computer Science)
Employment
Source: Self-asserted source
David Freire-Obregón

Education and qualifications (5)

Universidad de Las Palmas de Gran Canaria: Las Palmas de Gran Canaria, Islas Canarias, ES

2010-01-01 to 2014-11-21 | PhD on Computer Science
Education
Source: Self-asserted source
David Freire-Obregón

Universitat Oberta de Catalunya: Barcelona, Catalunya, ES

2011-10-01 to 2013-06-16 | Master of Arts in Educational Technology (Education)
Education
Source: Self-asserted source
David Freire-Obregón

Universidad de las Palmas de Gran Canaria: Las Palmas de Gran Canaria, Canarias, ES

2010-10-01 to 2011-07-17 | Master of Arts in Educational Processes (Education)
Education
Source: Self-asserted source
David Freire-Obregón

Universidad de las Palmas de Gran Canaria: Las Palmas de Gran Canaria, Canarias, ES

2008-10-01 to 2010-06-15 | Master of Science in Computer Vision (SIANI)
Education
Source: Self-asserted source
David Freire-Obregón

Universidad de las Palmas de Gran Canaria: Las Palmas de Gran Canaria, Canarias, ES

2000-10-01 to 2005-06-02 | BSc. in Computer Science (Computer Science)
Education
Source: Self-asserted source
David Freire-Obregón

Works (46)

Synthesizing multilevel abstraction ear sketches for enhanced biometric recognition

Image and Vision Computing
2025-02 | Journal article
Contributors: David Freire-Obregón; Joao Neves; Žiga Emeršič; Blaž Meden; Modesto Castrillón-Santana; Hugo Proença
Source: check_circle
Crossref

Exploring Data Augmentation Strategies for Diagonal Earlobe Crease Detection

2024 | Book chapter
Contributors: Sara Almonacid-Uribe; Oliverio J. Santana; Daniel Hernández-Sosa; David Freire-Obregón
Source: check_circle
Crossref

Improving Person Re-identification Through Low-Light Image Enhancement

2024 | Book chapter
Contributors: Oliverio J. Santana; Javier Lorenzo-Navarro; David Freire-Obregón; Daniel Hernández-Sosa; Modesto Castrillón-Santana
Source: check_circle
Crossref

Novelty Detection in Human-Machine Interaction Through a Multimodal Approach

2024 | Book chapter
Contributors: José Salas-Cáceres; Javier Lorenzo-Navarro; David Freire-Obregón; Modesto Castrillón-Santana
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Applying deep learning image enhancement methods to improve person re-identification

Neurocomputing
2024-09 | Journal article
Contributors: Oliverio J. Santana; Javier Lorenzo-Navarro; David Freire-Obregón; Daniel Hernández-Sosa; Modesto Castrillón-Santana
Source: check_circle
Crossref

Exploring biometric domain adaptation in human action recognition models for unconstrained environments

Multimedia Tools and Applications
2024-02-16 | Journal article
Contributors: David Freire-Obregón; Paola Barra; Modesto Castrillón-Santana; Maria De Marsico
Source: check_circle
Crossref

A Large-scale Analysis of Athletes’ Cumulative Race Time in Running Events

2023 | Book chapter
Contributors: David Freire-Obregón; Javier Lorenzo-Navarro; Oliverio J. Santana; Daniel Hernández-Sosa; Modesto Castrillón-Santana
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Evaluation of a Visual Question Answering Architecture for Pedestrian Attribute Recognition

2023 | Book chapter
Contributors: Modesto Castrillón-Santana; Elena Sánchez-Nielsen; David Freire-Obregón; Oliverio J. Santana; Daniel Hernández-Sosa; Javier Lorenzo-Navarro
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Exploiting Temporal Coherence to Improve Person Re-identification

2023 | Book chapter
Contributors: Oliverio J. Santana; Javier Lorenzo-Navarro; David Freire-Obregón; Daniel Hernández-Sosa; José Isern-González; Modesto Castrillón-Santana
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Towards Facial Expression Robustness in Multi-scale Wild Environments

2023 | Book chapter
Contributors: David Freire-Obregón; Daniel Hernández-Sosa; Oliverio J. Santana; Javier Lorenzo-Navarro; Modesto Castrillón-Santana
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Facial expression analysis in a wild sporting environment

Multimedia Tools and Applications
2023-03 | Journal article
Contributors: Oliverio J. Santana; David Freire-Obregón; Daniel Hernández-Sosa; Javier Lorenzo-Navarro; Elena Sánchez-Nielsen; Modesto Castrillón-Santana
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Zero-shot ear cross-dataset transfer for person recognition on mobile devices

Pattern Recognition Letters
2023-02 | Journal article
Contributors: David Freire-Obregón; Maria De Marsico; Paola Barra; Javier Lorenzo-Navarro; Modesto Castrillón-Santana
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

An X3D Neural Network Analysis for Runner's Performance Assessment in a Wild Sporting Environment

Proceedings Of Mva 2023 - 18Th International Conference On Machine Vision And Applications
2023-01-01 | Other | Author
SOURCE-WORK-ID: 104877
Contributors: David Freire-Obregón; Javier Lorenzo-Navarro; Oliverio Jesús Santana Jaria; Jose Daniel Hernandez Sosa; Modesto Castrillón-Santana
Source: check_circle
accedaCRIS

Deep learning for diagonal earlobe crease detection

International Conference On Pattern Recognition Applications And Methods
2023-01-01 | Other | Author
SOURCE-WORK-ID: 104703
Contributors: Almonacid-Uribe, Sara L.; Oliverio Jesús Santana Jaria; Jose Daniel Hernandez Sosa; David Freire-Obregón
Source: check_circle
accedaCRIS

Evaluating the impact of low-light image enhancement methods on runner re-identification in the wild

2023-01-01 | Other | Author
SOURCE-WORK-ID: 108237
Contributors: Oliverio Jesús Santana Jaria; Javier Lorenzo-Navarro; David Freire-Obregón; Jose Daniel Hernandez Sosa; Modesto Castrillón-Santana
Source: check_circle
accedaCRIS

Decontextualized I3D ConvNet for Ultra-Distance Runners Performance Analysis at a Glance

2022 | Book chapter
Contributors: David Freire-Obregón; Javier Lorenzo-Navarro; Modesto Castrillón-Santana
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Inflated 3D ConvNet context analysis for violence detection

Machine Vision and Applications
2022-01 | Journal article
Part of ISSN: 0932-8092
Part of ISSN: 1432-1769
Source: Self-asserted source
David Freire-Obregón
grade
Preferred source (of 2)‎

Boosting Re-identification in the Ultra-running Scenario

ICPRAM (Setúbal)
2022-01-01 | Other | Author
SOURCE-WORK-ID: 102880
Contributors: Miguel Ángel Medina-Ramírez; Javier Lorenzo-Navarro; David Freire-Obregón; Oliverio Jesús Santana Jaria; Jose Daniel Hernandez Sosa; Modesto Castrillón-Santana
Source: check_circle
accedaCRIS

Towards cumulative race time regression in sports: I3D ConvNet transfer learning in ultra-distance running events

Proceedings - International Conference on Pattern Recognition
2022-01-01 | Other | Author
SOURCE-WORK-ID: 98589
Contributors: David Freire-Obregón; Javier Lorenzo-Navarro; Oliverio Jesús Santana Jaria; Jose Daniel Hernandez Sosa; Modesto Castrillón-Santana
Source: check_circle
accedaCRIS

Deepfakes, ¿bulo o amenaza?

2021-01-01 | Other | Author
SOURCE-WORK-ID: 53790
Contributors: David Freire-Obregón
Source: check_circle
accedaCRIS

Improving user verification in human-robot interaction from audio or image inputs through sample quality assessment

Pattern Recognition Letters
2021-01-01 | Journal article | Author
SOURCE-WORK-ID: 87395
Contributors: David Freire-Obregón; Rosales-Santana, Kevin; Marín Reyes, Pedro Antonio; Adrian Penate-Sanchez; Javier Lorenzo-Navarro; Modesto Castrillón-Santana
Source: check_circle
accedaCRIS

An attention recurrent model for human cooperation detection

Computer Vision and Image Understanding
2020 | Journal article
EID:

2-s2.0-85085946460

Part of ISBN:

1090235X 10773142

Contributors: Freire-Obregón, D.; Castrillón-Santana, M.; Barra, P.; Bisogni, C.; Nappi, M.
Source: Self-asserted source
David Freire-Obregón via Scopus - Elsevier
grade
Preferred source (of 2)‎

Gotcha-I: A Multiview Human Videos Dataset

Communications in Computer and Information Science
2020 | Book
EID:

2-s2.0-85084845314

Part of ISBN:

18650937 18650929

Contributors: Barra, P.; Bisogni, C.; Nappi, M.; Freire-Obregón, D.; Castrillón-Santana, M.
Source: Self-asserted source
David Freire-Obregón via Scopus - Elsevier
grade
Preferred source (of 2)‎

TGC20ReId: A dataset for sport event re-identification in the wild

Pattern Recognition Letters
2020-10 | Journal article
Contributors: Adrian Penate-Sanchez; David Freire-Obregón; Adrián Lorenzo-Melián; Javier Lorenzo-Navarro; Modesto Castrillón-Santana
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

TGCRbNW: a dataset for runner bib number detection (and recognition) in the wild

Proceedings - International Conference on Pattern Recognition
2020-01-01 | Other | Author
SOURCE-WORK-ID: 88886
Contributors: Hernández-Carrascosa, Pablo; Adrian Penate-Sanchez; Javier Lorenzo-Navarro; David Freire-Obregón; Modesto Castrillón-Santana
Source: check_circle
accedaCRIS

Gait Analysis for Gender Classification in Forensics

Communications in Computer and Information Science
2019 | Book
EID:

2-s2.0-85076426222

Part of ISBN:

18650937 18650929

Contributors: Barra, P.; Bisogni, C.; Nappi, M.; Freire-Obregón, D.; Castrillón-Santana, M.
Source: Self-asserted source
David Freire-Obregón via Scopus - Elsevier
grade
Preferred source (of 2)‎

Gender classification on 2D human skeleton

BioSMART 2019 - Proceedings: 3rd International Conference on Bio-Engineering for Smart Technologies
2019 | Conference paper
EID:

2-s2.0-85068316333

Contributors: Barra, P.; Bisogni, C.; Nappi, M.; Freire-Obregon, D.; Castrillon-Santana, M.
Source: Self-asserted source
David Freire-Obregón via Scopus - Elsevier
grade
Preferred source (of 2)‎

Deep learning for source camera identification on mobile devices

Pattern Recognition Letters
2019-09 | Journal article
Contributors: David Freire-Obregón; Fabio Narducci; Silvio Barra; Modesto Castrillón-Santana
Source: check_circle
Crossref
grade
Preferred source (of 3)‎

Evaluation of local descriptors and CNNs for non-adult detection in visual content

Pattern Recognition Letters
2018 | Journal article
EID:

2-s2.0-85016419727

Part of ISBN:

01678655

Contributors: Castrillón-Santana, M.; Lorenzo-Navarro, J.; Travieso-González, C.M.; Freire-Obregón, D.; Alonso-Hernández, J.B.
Source: Self-asserted source
David Freire-Obregón via Scopus - Elsevier
grade
Preferred source (of 2)‎

Análisis de descriptores locales para la detección de menores en imágenes

2016-01-01 | Other | Author
SOURCE-WORK-ID: 11190
Contributors: Modesto Castrillón-Santana; Javier Lorenzo-Navarro; David Freire-Obregón
Source: check_circle
accedaCRIS

The Practicum, a career oriented proposal through a blended learning methodology at the ULPGC

INTED proceedings
2016-01-01 | Other | Author
SOURCE-WORK-ID: 46852
Contributors: David Freire-Obregón; Lucas Andrés Pérez Martín
Source: check_circle
accedaCRIS

An evolutive approach for smile recognition in video sequences

International Journal of Pattern Recognition and Artificial Intelligence
2015 | Journal article
EID:

2-s2.0-84929310887

Part of ISBN:

02180014

Contributors: Freire-Obregón, D.; Castrillón-Santana, M.
Source: Self-asserted source
David Freire-Obregón via Scopus - Elsevier
grade
Preferred source (of 2)‎

Stripe based clothes segmentation

2015 IEEE International Conference on Multimedia and Expo Workshops, ICMEW 2015
2015 | Conference paper
EID:

2-s2.0-84945564793

Contributors: Lorenzo-Navarro, J.; Castrillon-Santana, M.; Freire-Obregon, D.; Ramon-Balmaseda, E.
Source: Self-asserted source
David Freire-Obregón via Scopus - Elsevier
grade
Preferred source (of 2)‎

Automatic clothes segmentation for soft biometrics

2014 IEEE International Conference on Image Processing, ICIP 2014
2014 | Conference paper
EID:

2-s2.0-84945565603

Contributors: Freire-Obregon, D.; Castrillon-Santana, M.; Ramon-Balmaseda, E.; Lorenzo-Navarro, J.
Source: Self-asserted source
David Freire-Obregón via Scopus - Elsevier
grade
Preferred source (of 2)‎

Evaluation of LBP and HOG descriptors for clothing attribute description

Lecture Notes in Computer Science
2014-01-01 | Book chapter | Author
SOURCE-WORK-ID: 11769
Contributors: Javier Lorenzo-Navarro; Modesto Castrillón-Santana; Enrique Ramón-Balmaseda; David Freire-Obregón
Source: check_circle
accedaCRIS

Sobre la descripción visual automática del ser humano para aplicaciones de interacción hombre-máquina

2014-01-01 | Other | Author
SOURCE-WORK-ID: 9653
Contributors: David Freire-Obregón
Source: check_circle
accedaCRIS

A video database for facial behavior understanding

2012-01-01 | Other | Author
SOURCE-WORK-ID: 524
Contributors: David Freire-Obregón; Modesto Castrillón-Santana
Source: check_circle
accedaCRIS

Digital signature: a novel adaptative image segmentation approach

2011-01-01 | Book chapter | Author
SOURCE-WORK-ID: 91156
Contributors: David Freire-Obregón; Modesto Castrillón-Santana; Déniz Suárez, Oscar
Source: check_circle
accedaCRIS

Fundamentos de informática y programación para ingeniería : ejercicios resueltos para C y Matlab

2011-01-01 | Book | Author
SOURCE-WORK-ID: 91160
Contributors: Modesto Castrillón-Santana; Antonio Carlos Domínguez Brito; Candela Solá, Santiago; Doreste Blanco, Luis Jesús; David Freire-Obregón; Agustin Salgado; Sunil L. Khemchandani; Jose Daniel Hernandez Sosa
Source: check_circle
accedaCRIS

Spatial programming learning: a new application to learn programming

2011-01-01 | Other | Author
SOURCE-WORK-ID: 25621
Contributors: David Freire-Obregón; Modesto Castrillón-Santana; Antonio Carlos Domínguez Brito
Source: check_circle
accedaCRIS

Learning to recognize gender using experince

Proceedings - International Conference on Image Processing
2010-01-01 | Other | Author
SOURCE-WORK-ID: 583
Contributors: Modesto Castrillón-Santana; Javier Lorenzo-Navarro; David Freire-Obregón; Déniz Suárez, Oscar
Source: check_circle
accedaCRIS

Gestión informática de la seguridad y emergencias

2009-01-01 | Book chapter | Author
SOURCE-WORK-ID: 95568
Contributors: Santos, J; David Freire-Obregón; Antonio Carlos Domínguez Brito; Quesada, A
Source: check_circle
accedaCRIS

Novel approach for smile detection combining LBP and PCA

2009-01-01 | Other | Author
SOURCE-WORK-ID: 92833
Contributors: David Freire-Obregón; Modesto Castrillón-Santana; Déniz Suárez, Oscar
Source: check_circle
accedaCRIS

Smile detection using local binary patterns and support vector machines

2009-01-01 | Other | Author
SOURCE-WORK-ID: 15613
Contributors: David Freire-Obregón; Modesto Castrillón-Santana; Déniz, O.
Source: check_circle
accedaCRIS

A computational structure for generalized visual space-time chromatic processing

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
2007 | Book
EID:

2-s2.0-38149064518

Part of ISBN:

16113349 03029743

Contributors: Freire-Obregón, D.; Moreno-Díaz Jr., R.; Moreno-Díaz, R.; De Blasio, G.; Moreno-Díaz, A.
Source: Self-asserted source
David Freire-Obregón via Scopus - Elsevier
grade
Preferred source (of 2)‎

A structure for generalized space-time processing: The feedforward visual case

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
2007 | Book
EID:

2-s2.0-38449112438

Part of ISBN:

16113349 03029743

Contributors: Moreno-Díaz, R.; Moreno-Díaz, A.; De Blasio, G.; Freire-Obregón, D.
Source: Self-asserted source
David Freire-Obregón via Scopus - Elsevier
grade
Preferred source (of 2)‎

Peer review (12 reviews for 5 publications/grants)

Review activity for Image and vision computing. (3)
Review activity for Journal of ambient intelligence & humanized computing (1)
Review activity for Machine vision and applications. (1)
Review activity for Multimedia tools and applications. (5)
Review activity for Pattern recognition letters. (2)