Prof. Sergio N. Torres Profile

Prof. Sergio N. Torres

Professor at Univ de Concepción

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Author

Publications (21)

Proceedings Article | 7 June 2024 Poster + Paper

Multispectral LWIR plenoptics system free of FPN

Felipe Borcoski, Sergio Torres, Joaquin Lermanda

Proceedings Volume 13045, 1304516 (2024) https://doi.org/10.1117/12.3017067

KEYWORDS: Long wavelength infrared, Cameras, Black bodies, Image quality, Calibration, Infrared imaging, Infrared cameras, Imaging systems, Image analysis, Tunable filters

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Proceedings Article | 22 May 2023 Presentation + Paper

A prototype for crowd location and counting via deep learning over 5G SA network using 24/7 panoramic imaging for crowd handling during earthquakes

F. Lamas, J. Pezoa, G. Saavedra, S. Godoy, S. Torres, G. Montalva, W. Meng

Proceedings Volume 12327, 123270C (2023) https://doi.org/10.1117/12.2666921

KEYWORDS: Panoramic photography, Cameras, Deep learning, Imaging systems, Image processing, Earthquakes, Prototyping, Neural networks, Head

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Proceedings Article | 3 October 2022 Presentation + Paper

SAFE: a deep-learning-based software for catch-control of small-scale fishing boats in Chile

Vincenzo Caro Fuentes, Ariel Torres Sánchez, Jorge Pezoa, Sergio Torres, Rosario Castillo, Rubén Escribano, Mauricio Urbina

Proceedings Volume 12227, 1222706 (2022) https://doi.org/10.1117/12.2628826

KEYWORDS: Databases, Image segmentation, RGB color model, Image classification, Classification systems, Performance modeling, Image processing, Image resolution, Computing systems, Machine learning

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Proceedings Article | 27 May 2022 Presentation + Paper

Crowd detection and estimation for an earthquake early warning system using deep learning

F. Lamas, K. Duguet, J. Pezoa, G. Montalva, S. Torres, W. Meng

Proceedings Volume 12101, 121010H (2022) https://doi.org/10.1117/12.2622392

KEYWORDS: Earthquakes, Performance modeling, Neural networks, Convolution, Network architectures, Head, Statistical modeling, Data modeling, Safety, Reconstruction algorithms

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Proceedings Article | 9 March 2017 Paper

Infrared microscopy imaging applied to obtain the index finger pad's thermoregulation curves

Laura Viafora, Sergio Torres, Wagner Ramírez, Pablo Gutiérrez, Guillermo Machuca, Anselmo Jara

Proceedings Volume 10132, 101324R (2017) https://doi.org/10.1117/12.2254635

KEYWORDS: Skin, Video, Video microscopy, Blood vessels, Infrared imaging, Infrared microscopy, Thermography, Infrared radiation, Microscopy, Imaging systems, Spatial resolution, Infrared cameras, Mid-IR, Microscopes

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Proceedings Article | 13 March 2014 Paper

Non-contact measurement technique for enzymatic reaction of glucokinase

Juan Staforelli, María Gallardo, Pablo Meza, Sergio Torres, Héctor Mella, Claudio Reyes

Proceedings Volume 8953, 89530L (2014) https://doi.org/10.1117/12.2037394

KEYWORDS: Infrared imaging, Thermography, Imaging systems, Infrared radiation, Cameras, Calibration, Temperature metrology, Infrared cameras, Interference (communication), Image resolution

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Proceedings Article | 19 November 2012 Paper

A prior knowledge model for multidimensional striping noise compensation in hyperspectral imaging devices

Pablo Meza, Jorge Pezoa, Francisca Parra, Sergio Torres

Proceedings Volume 8542, 854222 (2012) https://doi.org/10.1117/12.974720

KEYWORDS: Cameras, Near infrared, Mathematical modeling, Imaging systems, Sensors, Synthetic aperture radar, Hyperspectral imaging, Electro optical modeling, Modeling, Instrument modeling

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Proceedings Article | 24 October 2012 Paper

A hardware Kalman-based offset estimator for nonuniformity correction on IRFPA

Javier Contreras, Rodolfo Redlich, Miguel Figueroa, Sergio Torres

Proceedings Volume 8541, 85410Y (2012) https://doi.org/10.1117/12.974695

KEYWORDS: Nonuniformity corrections, Video, Field programmable gate arrays, Infrared cameras, Cameras, Infrared radiation, Sensors, Logic, Calibration, Infrared imaging

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Proceedings Article | 18 May 2012 Paper

Compensating internal temperature effects in uncooled microbolometer-based infrared cameras

Felipe Pedreros, Jorge Pezoa, Sergio Torres

Proceedings Volume 8355, 83551C (2012) https://doi.org/10.1117/12.918701

KEYWORDS: Cameras, Staring arrays, Infrared cameras, Calibration, Microbolometers, Temperature metrology, Technetium, Sensors, Infrared radiation, Infrared imaging

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Proceedings Article | 18 May 2012 Paper

An experimental validation of the Gauss-Markov model for nonuniformity noise in infrared focal plane array sensors

Octavio Zapata, Felipe Pedreros, Sergio Torres

Proceedings Volume 8355, 83551G (2012) https://doi.org/10.1117/12.919367

KEYWORDS: Infrared radiation, Staring arrays, Sensors, Infrared cameras, Cameras, Thermal modeling, Statistical analysis, Infrared sensors, Infrared imaging, Autoregressive models

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Proceedings Article | 18 May 2012 Paper

On the thermal-offset in NIR hyperspectral cameras

Francisca Parra, Jorge Pezoa, Pablo Meza, Sergio Torres, Octavio Zapata

Proceedings Volume 8354, 835411 (2012) https://doi.org/10.1117/12.919345

KEYWORDS: Cameras, Staring arrays, Near infrared, Thermal modeling, Imaging systems, Temperature metrology, Cooling systems, Data modeling, Systems modeling, Hyperspectral imaging

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Proceedings Article | 2 February 2012 Paper

Automated parasites detection in clams by transillumination imaging and pattern classification

Miguel Soto, Pablo Coelho, Jose Soto, Sergio Torres, Daniel Sbarbaro

Proceedings Volume 8300, 83000F (2012) https://doi.org/10.1117/12.909055

KEYWORDS: Image segmentation, Imaging systems, Image enhancement, Image processing, Machine vision, Image classification, Feature extraction, Inspection, Visualization, Optoelectronics

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Proceedings Article | 6 October 2011 Paper

Thermal characterization of a NIR hyperspectral camera

Francisca Parra, Pablo Meza, Jorge Pezoa, Sergio Torres

Proceedings Volume 8186, 81860Z (2011) https://doi.org/10.1117/12.898126

KEYWORDS: Cameras, Thermal modeling, Near infrared, Photodetectors, Sensors, Staring arrays, Calibration, Imaging systems, Data modeling, Error analysis

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Proceedings Article | 16 September 2011 Paper

A frequency domain model for the spatial fixed-pattern noise in infrared focal plane arrays

Osvaldo Medina, Jorge Pezoa, Sergio Torres

Proceedings Volume 8155, 81550H (2011) https://doi.org/10.1117/12.892188

KEYWORDS: Cameras, Staring arrays, Infrared cameras, Infrared imaging, Thermal modeling, Infrared radiation, Algorithm development, Photodetectors, Optical filters, Spatial filters

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Proceedings Article | 16 September 2011 Paper

A multidimensional approach for striping noise compensation in hyperspectral imaging devices

Pablo Meza, Francisca Parra, Sergio Torres, Jorge Pezoa, Pablo Coelho

Proceedings Volume 8155, 81550I (2011) https://doi.org/10.1117/12.892246

KEYWORDS: Cameras, Hyperspectral imaging, Algorithm development, Detection and tracking algorithms, Photodetectors, Image processing, Imaging systems, Sensors, Staring arrays, Spectral resolution

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Proceedings Article | 14 May 2007 Paper

Nonuniformity correction algorithm based on a noise-cancellation system for infrared focal plane arrays

Sebastian Godoy, Sergio Torres, Jorge Pezoa, Majeed Hayat, Qi Wang

Proceedings Volume 6542, 65423S (2007) https://doi.org/10.1117/12.719924

KEYWORDS: Sensors, Infrared imaging, Cameras, Nonuniformity corrections, Staring arrays, Infrared radiation, Optical filters, Finite impulse response filters, Calibration, Monte Carlo methods

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Proceedings Article | 27 February 2007 Paper

Adaptive color space transform using independent component analysis

Esteban Vera, Sergio Torres

Proceedings Volume 6497, 64970P (2007) https://doi.org/10.1117/12.705004

KEYWORDS: Independent component analysis, RGB color model, Image enhancement, Image segmentation, Principal component analysis, Nose, Visualization, Image processing, Color image processing, Machine vision

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Proceedings Article | 22 August 2003 Paper

Adaptive scene-based nonuniformity correction method for infrared-focal plane arrays

Sergio Torres, Esteban Vera, Rodrigo Reeves, Sergio Sobarzo

Proceedings Volume 5076, (2003) https://doi.org/10.1117/12.487217

KEYWORDS: Nonuniformity corrections, Infrared radiation, Sensors, Infrared imaging, Detection and tracking algorithms, Video, Infrared detectors, Staring arrays, Infrared sensors, Neurons

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Proceedings Article | 17 July 2000 Paper

Kalman-filtering approach for nonuniformity correction in focal plane array sensors

Sergio Torres, Majeed Hayat, Ernest Armstrong, Brian Yasuda

Proceedings Volume 4030, (2000) https://doi.org/10.1117/12.391780

KEYWORDS: Sensors, Filtering (signal processing), Nonuniformity corrections, Staring arrays, Data modeling, Algorithm development, Infrared radiation, Error analysis, Detection and tracking algorithms, Infrared imaging

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Proceedings Article | 18 October 1999 Paper

Nonuniformity correction for improved registration and high-resolution image reconstruction in IR imagery

Ernest Armstrong, Majeed Hayat, Russell Hardie, Sergio Torres, Brian Yasuda

Proceedings Volume 3808, (1999) https://doi.org/10.1117/12.365831

KEYWORDS: Nonuniformity corrections, Image registration, Image restoration, Sensors, Reconstruction algorithms, Staring arrays, Infrared imaging, Forward looking infrared, Motion estimation, Image processing

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Proceedings Article | 26 August 1998 Paper

Model-based real-time nonuniformity correction in focal plane array detectors

Majeed Hayat, Sergio Torres, Stephen Cain, Ernest Armstrong

Proceedings Volume 3377, (1998) https://doi.org/10.1117/12.319366

KEYWORDS: Image filtering, Sensors, Data modeling, Statistical analysis, Staring arrays, Optical filters, Algorithm development, Nonuniformity corrections, Statistical modeling, Detection and tracking algorithms

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Showing 5 of 21 publications

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