Leonardo Chang
Leonardo Chang
Co-Founder & CTO at
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Fingerprint presentation attack detection based on local features encoding for unknown attacks
LJ Gonzalez-Soler, M Gomez-Barrero, L Chang, A Pérez-Suárez, ...
IEEE Access 9, 5806-5820, 2021
A Bayesian approach for object classification based on clusters of SIFT local features
L Chang, MM Duarte, LE Sucar, EF Morales
Expert Systems With Applications 39 (2), 1679-1686, 2012
FPGA-based detection of SIFT interest keypoints
L Chang, J Hernández-Palancar, LE Sucar, M Arias-Estrada
Machine vision and applications 24, 371-392, 2013
Shufflefacenet: a lightweight face architecture for efficient and highly-accurate face recognition
Y Martindez-Diaz, LS Luevano, H Mendez-Vazquez, M Nicolas-Diaz, ...
Proceedings of the IEEE/CVF International Conference on Computer Vision …, 2019
A hardware architecture for SIFT candidate keypoints detection
L Chang, J Hernández-Palancar
Progress in Pattern Recognition, Image Analysis, Computer Vision, and …, 2009
On fisher vector encoding of binary features for video face recognition
Y Martinez-Diaz, N Hernandez, RJ Biscay, L Chang, H Mendez-Vazquez, ...
Journal of Visual Communication and Image Representation 51, 155-161, 2018
On the Impact of Different Fabrication Materials on Fingerprint Presentation Attack Detection
LJ González-Soler, M Gomez-Barrero, L Chang, AP Suárez, C Busch
2019 International Conference on Biometrics (ICB), 1-6, 2019
Toward More Realistic Face Recognition Evaluation Protocols for the YouTube Faces Database
Y Martınez-Dıaz, H Méndez-Vázquez, L López-Avila, L Chang, LE Sucar, ...
IEEE Conference on Computer Vision and Pattern Recognition Workshops, 413--421, 2018
Benchmarking lightweight face architectures on specific face recognition scenarios
Y Martinez-Diaz, M Nicolas-Diaz, H Mendez-Vazquez, LS Luevano, ...
Artificial Intelligence Review, 1-44, 2021
Fingerprint presentation attack detection method based on a bag-of-words approach
LJ González-Soler, L Chang, J Hernández-Palancar, A Pérez-Suárez, ...
Progress in Pattern Recognition, Image Analysis, Computer Vision, and …, 2018
Evaluación de la calidad de las imágenes de rostros utilizadas para la identificación de las personas
H Méndez-Vázquez, L Chang, D Rizo-Rodríguez, A Morales-González
Computación y Sistemas 16 (2), 147-165, 2012
Towards Accurate and Lightweight Masked Face Recognition: An Experimental Evaluation
Y Martínez-Díaz, H Méndez-Vázquez, LS Luevano, M Nicolás-Díaz, ...
IEEE Access 10, 7341-7353, 2021
Best-shot selection for video face recognition using FPGA
L Chang, I Rodés, H Méndez, E del Toro
Progress in Pattern Recognition, Image Analysis and Applications, 543-550, 2008
Assessing YOLACT++ for real time and robust instance segmentation of medical instruments in endoscopic procedures
JCA Cerón, L Chang, GO Ruiz, S Ali
2021 43rd Annual International Conference of the IEEE Engineering in …, 2021
A Study on the Performance of Unconstrained Very Low Resolution Face Recognition: Analyzing Current Trends and New Research Directions
LS Luevano, L Chang, H Méndez-Vázquez, Y Martínez-Díaz, ...
IEEE Access 9, 75470-75493, 2021
Robust Parking Block Segmentation from a Surveillance Camera Perspective
N Hurst-Tarrab, L Chang, M Gonzalez-Mendoza, N Hernandez-Gress
Applied Sciences 10 (15), 5364, 2020
Efficient video face recognition by using fisher vector encoding of binary features
Y Martínez-Díaz, L Chang, N Hernández, H Méndez-Vázquez, LE Sucar
2016 23rd International Conference on Pattern Recognition (ICPR), 1436-1441, 2016
Object class recognition using SIFT and Bayesian networks
L Chang, MM Duarte, LE Sucar, EF Morales
Advances in Soft Computing: 9th Mexican International Conference on …, 2010
Real-time instance segmentation of surgical instruments using attention and multi-scale feature fusion
JCÁ Cerón, GO Ruiz, L Chang, S Ali
Medical Image Analysis 81, 102569, 2022
TYOLOV5: a temporal Yolov5 detector based on quasi-recurrent neural networks for real-time handgun detection in video
MA Duran-Vega, M Gonzalez-Mendoza, L Chang, CD Suarez-Ramirez
arXiv preprint arXiv:2111.08867, 2021
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