Dr. Victor Hugo Diaz-Ramirez Profile

Dr. Victor Hugo Diaz-Ramirez

at Instituto Politécnico Nacional - CITEDI

SPIE Involvement:

Conference Chair | Editorial Board Member: Optical Engineering | Editor | Author | Student Chapter Advisor

Area of Expertise:

Computer vision and image processing , Pattern recognition , 3D imaging and processing , Opto-digital correlators , Real-time image processing

Publications (81)

Proceedings Article | 30 September 2024 Presentation + Paper

Stereo disparity refinement using genetic optimization

Victor Diaz-Ramirez, Leopoldo Gaxiola, Juan Pablo Apun, Rigoberto Juarez-Salazar

Proceedings Volume 13136, 131360D (2024) https://doi.org/10.1117/12.3028780

KEYWORDS: Genetic algorithms, Cameras, 3D image processing, Stereo vision systems, Iterative methods, Imaging systems, Image restoration

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Proceedings Article | 30 September 2024 Presentation + Paper

Binocular vision-based depth estimation in scattering media

Victor Diaz-Ramirez, Martin Gonzalez-Ruiz, Rigoberto Juarez-Salazar

Proceedings Volume 13136, 131360F (2024) https://doi.org/10.1117/12.3028316

KEYWORDS: Scattering, Cameras, Atmospheric optics, Image restoration, Image processing, Scattering media, Image analysis

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Proceedings Article | 30 September 2024 Presentation + Paper

A comparative study of facial feature classification methods

Martin Gonzalez-Ruiz, Victor H. Díaz-Ramírez, Miguel Cazorla, Rigoberto Juarez-Salazar

Proceedings Volume 13136, 131360K (2024) https://doi.org/10.1117/12.3027562

KEYWORDS: Feature extraction, Facial recognition systems, Education and training, Deep learning, Machine learning, Data modeling, Transformers, Emotion, Neural networks, Convolutional neural networks, Image classification

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Proceedings Article | 30 September 2024 Presentation + Paper

Three-dimensional object texturing for visible-thermal fringe projection profilometers

Rigoberto Juarez-Salazar, Eberto Benjumea, Andres Marrugo, Victor Diaz-Ramirez

Proceedings Volume 13136, 131360E (2024) https://doi.org/10.1117/12.3028321

KEYWORDS: Cameras, Thermal imaging cameras, 3D modeling, Profilometers, 3D projection, Projection systems, Visible radiation, Thermography, Point clouds, 3D image processing

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Proceedings Article | 4 October 2023 Presentation + Paper

Performance evaluation of facial landmark detection methods

Yuliet Brito-Muñoz, Victor Diaz-Ramirez, Martin Gonzalez-Ruiz, Rigoberto Juarez-Salazar

Proceedings Volume 12673, 1267304 (2023) https://doi.org/10.1117/12.2677146

KEYWORDS: Education and training, Signal to noise ratio, Facial recognition systems, Databases, Binary data, Matrices, Light sources and illumination, Statistical modeling, Statistical analysis, Nose

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Proceedings Article | 4 October 2023 Presentation + Paper

Fringe projection profilometry without explicit projector calibration

Rigoberto Juarez-Salazar, Sofia Esquivel-Hernandez, Juan Zheng, Victor Diaz-Ramirez, Andres Marrugo

Proceedings Volume 12673, 1267309 (2023) https://doi.org/10.1117/12.2677133

KEYWORDS: Projection systems, Cameras, Calibration, Fringe analysis, Image processing, Camera calibration, 3D projection, 3D modeling, 3D image processing

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Proceedings Article | 4 October 2023 Presentation + Paper

First-order spectrum filtering in Fourier transform profilometry: a method comparison

Sofia Esquivel-Hernandez, Rigoberto Juarez-Salazar, Victor Diaz-Ramirez

Proceedings Volume 12673, 1267308 (2023) https://doi.org/10.1117/12.2677117

KEYWORDS: Tunable filters, Optical filters, Fourier transforms, Bandpass filters, Fringe analysis, Projection systems, Cameras, 3D modeling, Linear filtering, Image processing

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Proceedings Article | 4 October 2023 Presentation + Paper

Vision-based pose estimation for robot navigation in an uncontrolled environment

Juan Zheng, Rigoberto Juarez-Salazar, Victor Diaz-Ramirez

Proceedings Volume 12673, 126730H (2023) https://doi.org/10.1117/12.2677909

KEYWORDS: Pose estimation, Cameras, Matrices, 3D metrology, Singular value decomposition, 3D image processing, Video, Navigation systems, Error analysis, Global Positioning System

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Proceedings Article | 4 October 2023 Presentation + Paper

Performance evaluation of advanced correlation filters for printed character recognition

Leopoldo Gaxiola, Victor Diaz-Ramirez, Rigoberto Juarez-Salazar

Proceedings Volume 12673, 126730D (2023) https://doi.org/10.1117/12.2676178

KEYWORDS: Tunable filters, Image filtering, Detection and tracking algorithms, Optical character recognition, Target detection, Optical filters, Linear filtering

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Proceedings Article | 4 October 2023 Presentation + Paper

Three-dimensional object reconstruction using multi-ocular vision

Martin Gonzalez-Ruiz, Victor Diaz-Ramirez, Rigoberto Juarez-Salazar

Proceedings Volume 12673, 126730B (2023) https://doi.org/10.1117/12.2676947

KEYWORDS: 3D image processing, Cameras, 3D image reconstruction, Image processing, Windows, Error analysis, Binocular vision, Binary data, 3D metrology, Imaging devices

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Proceedings Article | 3 October 2022 Presentation + Paper

Stereo vision-based 3D pointer for virtual object interaction

Rigoberto Juarez-Salazar, Sofia Esquivel-Hernandez, Juan Zheng, Victor Diaz-Ramirez

Proceedings Volume 12225, 122250A (2022) https://doi.org/10.1117/12.2633736

KEYWORDS: Cameras, Virtual reality, RGB color model, Human-machine interfaces, Coded apertures, 3D modeling, Visual process modeling, Video processing, Video, MATLAB

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Proceedings Article | 3 October 2022 Presentation + Paper

Camera pose estimation based on local image correlation

Victor Diaz-Ramirez, Martin Gonzalez-Ruiz, Rigoberto Juarez-Salazar

Proceedings Volume 12225, 122250D (2022) https://doi.org/10.1117/12.2633732

KEYWORDS: Cameras, Particles, Image filtering, Optical filters, Image processing, Image analysis, Particle swarm optimization, Iterative methods, Image segmentation, Fourier transforms

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Proceedings Article | 3 October 2022 Presentation + Paper

Multi-projector system for dynamic scene platform of vehicle navigation evaluation

Juan Zheng, Rigoberto Juarez-Salazar, Victor Diaz-Ramirez

Proceedings Volume 12225, 1222506 (2022) https://doi.org/10.1117/12.2633690

KEYWORDS: Projection systems, Navigation systems, Image segmentation, Mobile robots, Digital imaging, Dynamical systems, Cameras, 3D image processing, 3D displays

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Proceedings Article | 3 October 2022 Presentation + Paper

Multi-baseline stereo vision for three-dimensional object reconstruction

Martin Gonzalez-Ruiz, Victor Diaz-Ramirez, Rigoberto Juarez-Salazar

Proceedings Volume 12225, 1222508 (2022) https://doi.org/10.1117/12.2633119

KEYWORDS: Cameras, 3D modeling, Image processing, Error analysis, Stereo vision systems, Imaging systems, Structured light, 3D acquisition, Stereoscopic cameras

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Proceedings Article | 1 August 2021 Presentation + Paper

Distorted pinhole camera model for tangential distortion

Rigoberto Juarez-Salazar, Victor H. Diaz-Ramirez

Proceedings Volume 11841, 118410D (2021) https://doi.org/10.1117/12.2594860

KEYWORDS: Distortion, Visual process modeling, Mathematical modeling, Cameras, Systems modeling, Imaging systems, Optical metrology, Navigation systems, Machine vision

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Proceedings Article | 1 August 2021 Presentation + Paper

Distorted pinhole model for image warping in lane detection applications

Juan Zheng, Rigoberto Juarez-Salazar, Victor Hugo Diaz-Ramirez

Proceedings Volume 11841, 1184106 (2021) https://doi.org/10.1117/12.2594934

KEYWORDS: Distortion, Image processing, Visual process modeling, Cameras, Visualization, Visual optics, Calibration, Ray tracing, Hough transforms

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Proceedings Article | 1 August 2021 Presentation + Paper

Multiple object tracking in color scenes using composite-matched filtering with complex constrains

Victor H. Diaz-Ramirez, Rigoberto Juarez-Salazar

Proceedings Volume 11841, 118410J (2021) https://doi.org/10.1117/12.2594941

KEYWORDS: Detection and tracking algorithms, Target detection, Image filtering, Image processing, Electronic filtering, Optical filters, Computer programming, RGB color model, Linear filtering, Optical correlators

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Proceedings Article | 21 August 2020 Presentation + Paper

Pose estimation from projective transformations for visual guidance of a wheeled mobile robot

Juan Zheng, Rigoberto Juarez-Salazar, Victor H. Diaz-Ramirez

Proceedings Volume 11509, 115090J (2020) https://doi.org/10.1117/12.2569737

KEYWORDS: Cameras, Hough transforms, Visualization, Mobile robots, Image processing, Video, Roads, 3D image processing, Navigation systems

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Proceedings Article | 21 August 2020 Presentation + Paper

Stereo vision parallelization for three-dimensional reconstruction

José Enrique Hernández-Beltrán, Mack Orlando Lugo-Aguilar, Victor H. Diaz-Ramirez, Rigoberto Juarez-Salazar

Proceedings Volume 11509, 1150906 (2020) https://doi.org/10.1117/12.2569278

KEYWORDS: 3D image processing, Image processing, Image filtering, Target detection, Reconstruction algorithms, Digital filtering, Stereoscopic cameras, Computing systems, 3D acquisition

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Proceedings Article | 21 August 2020 Presentation + Paper

Analysis of algebraic and geometric distances for projective transformation estimation

Obed Rios-Orellana, Rigoberto Juarez-Salazar, Victor Diaz-Ramirez

Proceedings Volume 11509, 115090A (2020) https://doi.org/10.1117/12.2569761

KEYWORDS: Error analysis, Statistical analysis, Computer simulations, Matrices, Machine vision, Image analysis, Distance measurement, Computer vision technology

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SPIE Journal Paper | 14 May 2020

Facial landmark detection and tracking with dynamically adaptive matched filters

Viridiana Contreras-Gonzalez, Victor Hugo Diaz-Ramirez, Rigoberto Juarez-Salazar

JEI, Vol. 29, Issue 03, 033004, (May 2020) https://doi.org/10.1117/12.10.1117/1.JEI.29.3.033004

KEYWORDS: Image processing, Signal to noise ratio, Composites, Facial recognition systems, Databases, Image filtering, Digital filtering, Target detection, Electronic filtering, Motion models

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Proceedings Article | 6 September 2019 Presentation + Paper

Real-time image dehazing using genetic programming

Jose Enrique Hernandez-Beltran, Victor Diaz-Ramirez, Rigoberto Juarez-Salazar

Proceedings Volume 11136, 111360V (2019) https://doi.org/10.1117/12.2528510

KEYWORDS: Image processing, Computer programming, Image restoration, Real-time computing, Atmospheric modeling, Atmospheric optics, Genetic algorithms, Digital image processing, Real time image processing, GPU based image processing

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Proceedings Article | 6 September 2019 Presentation + Paper

Image stitching by projective transformations

Juan Zheng, Alejandra Giron, Rigoberto Juarez-Salazar, Victor H. Diaz-Ramirez

Proceedings Volume 11136, 111360C (2019) https://doi.org/10.1117/12.2528585

KEYWORDS: 3D modeling, Cameras, Panoramic photography, 3D image processing, Image processing, Machine vision, Computer vision technology, Visual process modeling, Coded apertures, Image quality

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Proceedings Article | 6 September 2019 Presentation + Paper

Length measurements from monocular images

Alejandra Giron, Juan Zheng, Rigoberto Juarez-Salazar, Victor H. Diaz-Ramirez

Proceedings Volume 11136, 111360F (2019) https://doi.org/10.1117/12.2528607

KEYWORDS: Cameras, 3D image processing, Head, Image processing, Optical inspection, Optical testing, Matrices, Robot vision, Information security, Machine vision

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Proceedings Article | 6 September 2019 Paper

Demonstrating the robustness of frequency-domain correlation filters for 3D object recognition applications

Kenia Picos, Ulises Orozco-Rosas, Victor Diaz-Ramirez

Proceedings Volume 11136, 111360O (2019) https://doi.org/10.1117/12.2528944

KEYWORDS: Image filtering, 3D acquisition, Detection and tracking algorithms, Object recognition, 3D modeling, 3D image processing, 3D applications, Target recognition, Target detection, Cameras

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Proceedings Article | 6 September 2019 Presentation + Paper

Template matching methods for robot navigation assistance

Marisol Rodriguez-Cuevas, Victor Diaz-Ramirez, Rigoberto Juarez-Salazar, Kenia Picos

Proceedings Volume 11136, 111360K (2019) https://doi.org/10.1117/12.2528856

KEYWORDS: Optical filters, Image filtering, Detection and tracking algorithms, Object recognition, Mobile robots, Signal to noise ratio, Filtering (signal processing), Video, Robot vision, Navigation systems, Optical navigation

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Proceedings Article | 6 September 2019 Presentation + Paper

A comparative study of image feature detection and description methods for robot vision

Martin Gonzalez-Ruiz, Victor H. Diaz-Ramirez, Rigoberto Juarez-Salazar

Proceedings Volume 11136, 111360P (2019) https://doi.org/10.1117/12.2528581

KEYWORDS: Sensors, Detection and tracking algorithms, Visualization, Cameras, Binary data, Error analysis, Robot vision, Databases, Image processing algorithms and systems, Image analysis

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Proceedings Article | 6 September 2019 Presentation + Paper

Calibration of camera-projector fringe projection systems for three-dimensional scanning

Rigoberto Juarez-Salazar, Juan Zheng, Alejandra Giron, Victor H. Diaz-Ramirez

Proceedings Volume 11136, 111360D (2019) https://doi.org/10.1117/12.2530016

KEYWORDS: Projection systems, Calibration, Imaging systems, 3D scanning, 3D modeling, Fringe analysis, 3D image processing, Mathematical modeling, Hough transforms

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Proceedings Article | 7 September 2018 Presentation + Paper

Homography estimation for camera document scanning applications

Rigoberto Juarez-Salazar, Victor Diaz-Ramirez

Proceedings Volume 10751, 107510H (2018) https://doi.org/10.1117/12.2322001

KEYWORDS: Cameras, Image processing, Distortion, Calibration, 3D image processing, Algorithm development, Digital cameras

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Proceedings Article | 7 September 2018 Presentation + Paper

Stereo matching using adaptive windows and correlation filtering

José Enrique Hernández-Beltrán, Víctor Díaz-Ramírez, Rigoberto Juarez-Salazar

Proceedings Volume 10751, 1075102 (2018) https://doi.org/10.1117/12.2322043

KEYWORDS: Image analysis, Image filtering, Digital filtering, Image sensors, Computer simulations, Image processing, Computing systems, Optimization (mathematics), Optical filters, 3D image processing

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SPIE Journal Paper | 23 July 2018

Three-dimensional pose tracking by image correlation and particle filtering

Kenia Picos, Víctor Diaz-Ramirez, Antonio Sanz Montemayor, Juan Jose Pantrigo, Vitaly Kober

OE, Vol. 57, Issue 07, 073108, (July 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.7.073108

KEYWORDS: Detection and tracking algorithms, Particles, 3D image processing, 3D acquisition, Image processing, 3D modeling, Particle filters, Image filtering, Target detection, Signal to noise ratio

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Proceedings Article | 29 September 2017 Presentation

Dynamic vehicle guidance by B-spline curves (Conference Presentation)

Rigoberto Juarez-Salazar, Victor Diaz-Ramirez, Edgar Hernandez-Garcia, Jose Ramiro-Ramiro, Marcos Alvarez-Trejo

Proceedings Volume 10395, 103950P (2017) https://doi.org/10.1117/12.2274895

KEYWORDS: Machine vision, Computer vision technology, Onboard cameras, Algorithms, Prototyping

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Proceedings Article | 19 September 2017 Paper

Accurate generation of the 3D map of environment with a RGB-D camera

Jose González-Fraga, Vitaly Kober, Victor Diaz-Ramirez, Everardo Gutierrez, Omar Alvarez-Xochihua

Proceedings Volume 10396, 103962A (2017) https://doi.org/10.1117/12.2273074

KEYWORDS: Cameras, Optical filters, Sensors, Visualization, Composites, Image filtering, Detection and tracking algorithms, Digital filtering, Robotics, Imaging systems, Image registration, 3D modeling

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Proceedings Article | 24 August 2017 Presentation + Paper

Restoration of degraded images using stereo vision

José Enrique Hernández-Beltrán, Victor Díaz-Ramírez, Rigoberto Juarez-Salazar

Proceedings Volume 10395, 103950H (2017) https://doi.org/10.1117/12.2274892

KEYWORDS: Image processing, Image restoration, Image retrieval, Stereoscopic cameras, 3D image processing, Computer simulations

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Proceedings Article | 24 August 2017 Presentation + Paper

Restoration of motion blurred images

Leopoldo Gaxiola, Rigoberto Juarez-Salazar, Victor Diaz-Ramirez

Proceedings Volume 10395, 103950J (2017) https://doi.org/10.1117/12.2272797

KEYWORDS: Image restoration, Image analysis, Image processing

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Proceedings Article | 24 August 2017 Presentation + Paper

Adaptive noise filtering of sinusoidal signals with unknown nonlinear phase

Rigoberto Juarez-Salazar, Victor Diaz-Ramirez

Proceedings Volume 10395, 103950X (2017) https://doi.org/10.1117/12.2273209

KEYWORDS: Nonlinear filtering, Interference (communication), Digital filtering, Electronic filtering, Fringe analysis

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Proceedings Article | 24 August 2017 Presentation + Paper

On the use of video projectors for three-dimensional scanning

Rigoberto Juarez-Salazar, Victor Diaz-Ramirez, Carlos Robledo-Sanchez, Gerardo Diaz-Gonzalez

Proceedings Volume 10395, 103950C (2017) https://doi.org/10.1117/12.2273252

KEYWORDS: Projection systems, 3D scanning, Calibration

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Proceedings Article | 24 August 2017 Presentation + Paper

Visual environment recognition for robot path planning using template matched filters

Ulises Orozco-Rosas, Kenia Picos, Víctor Díaz-Ramírez, Oscar Montiel, Roberto Sepúlveda

Proceedings Volume 10395, 103950N (2017) https://doi.org/10.1117/12.2273596

KEYWORDS: Mobile robots, Computing systems, Machine vision, Computer vision technology, Robotics, Navigation systems, Visualization, Robot vision, Defense technologies, Computer simulations

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Proceedings Article | 24 August 2017 Presentation + Paper

Ronchigrams of parabolic concave mirrors by inverse ray-tracing

Rigoberto Juarez-Salazar, Carlos Robledo-Sanchez, Fermin Guerrero-Sanchez, Victor Diaz-Ramirez, Antonio Barcelata-Pinzon, Gerardo Diaz-Gonzalez

Proceedings Volume 10395, 1039504 (2017) https://doi.org/10.1117/12.2274903

KEYWORDS: Mirrors, Fringe analysis, Ray tracing, Ronchi rulings, Wavefront analysis, Computer programming

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Proceedings Article | 24 August 2017 Paper

Phase demodulation for digital fringe projection profilometry: a review

Juana Martinez-Laguna, Rigoberto Juarez-Salazar, Victor Diaz-Ramirez

Proceedings Volume 10395, 103951I (2017) https://doi.org/10.1117/12.2276135

KEYWORDS: Demodulation, Profilometers, Fringe analysis, Phase shifts, Image processing, Projection systems, Digital optical processing

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Proceedings Article | 24 August 2017 Presentation + Paper

Template-matched filtering for automatic object segmentation in real-life scenes

Kenia Picos, Adán Hirales-Carbajal, Victor Díaz-Ramírez

Proceedings Volume 10395, 103950L (2017) https://doi.org/10.1117/12.2273563

KEYWORDS: Image segmentation, Target detection, Digital filtering, Image processing, Target recognition, Video surveillance, Video, Machine vision, Computer vision technology, Feature extraction

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SPIE Journal Paper | 27 July 2017 Open Access

Operator-based homogeneous coordinates: application in camera document scanning

Rigoberto Juarez-Salazar, Victor Díaz-Ramírez

OE, Vol. 56, Issue 07, 070801, (July 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.7.070801

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SPIE Journal Paper | 25 January 2017

Estimation of amplitude and standard deviation of noisy sinusoidal signals

Rigoberto Juarez-Salazar, Victor H. Diaz-Ramirez

OE, Vol. 56, Issue 01, 013109, (January 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.1.013109

KEYWORDS: Fringe analysis, Error analysis, Interference (communication), Signal processing, Optical engineering, Computer simulations, Video, Statistical modeling, Software, Statistical analysis

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Proceedings Article | 28 September 2016 Paper

An efficient algorithm for matching of SLAM video sequences

Jose González-Fraga, Victor Diaz-Ramirez, Vitaly Kober, Juan Tapia-Higuera, Omar Alvarez-Xochihua

Proceedings Volume 9971, 99712Z (2016) https://doi.org/10.1117/12.2236759

KEYWORDS: Detection and tracking algorithms, Cameras, Optical filters, Sensors, Imaging systems, Video, Composites, Image filtering, Visualization, Image sensors

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Proceedings Article | 28 September 2016 Paper

Facial landmark detection in real-time with correlation filtering

Viridiana Contreras, Víctor Díaz-Ramírez

Proceedings Volume 9971, 997123 (2016) https://doi.org/10.1117/12.2238098

KEYWORDS: Biological research, Detection and tracking algorithms, Image filtering, Graphics processing units, Image processing, Target detection, Composites, Fourier transforms, Computer simulations, Biometrics

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Proceedings Article | 14 September 2016 Presentation + Paper

Pose detection of a 3D object using template matched filtering

Kenia Picos, Víctor Díaz-Ramírez

Proceedings Volume 9970, 99700S (2016) https://doi.org/10.1117/12.2237409

KEYWORDS: Object recognition, 3D image processing, Target recognition, Image processing, Target detection, 3D acquisition, Detection and tracking algorithms, 3D modeling, Genetic algorithms, Fourier transforms

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Proceedings Article | 14 September 2016 Paper

Scale estimation of objects using template matching

Leopoldo Gaxiola, Victor Diaz-Ramirez, Juan J. Tapia

Proceedings Volume 9970, 99701K (2016) https://doi.org/10.1117/12.2238016

KEYWORDS: Image processing, Target detection, Image filtering, Pattern recognition, Video, Detection and tracking algorithms, Factor analysis, Target recognition, Composites, Error analysis

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Proceedings Article | 14 September 2016 Presentation + Paper

Speech enhancement using local spectral regularization

Yuma Sandoval-Ibarra, Victor Diaz-Ramirez, Vitaly Kober, Arnoldo Diaz

Proceedings Volume 9970, 997010 (2016) https://doi.org/10.1117/12.2238170

KEYWORDS: Computer simulations, Signal processing, Interference (communication), Signal to noise ratio, Statistical analysis, Denoising, Synthetic aperture radar, Distortion, Composites, Mars

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Proceedings Article | 14 September 2016 Presentation + Paper

Restoration of degraded images using genetic programming

José Enrique Hernández-Beltrán, Víctor Díaz-Ramírez, Leonardo Trujillo, Pierrick Legrand

Proceedings Volume 9970, 99700K (2016) https://doi.org/10.1117/12.2237092

KEYWORDS: Genetics, Image restoration, Computer programming, Image processing, Genetic algorithms, Image retrieval, Image filtering, Digital filtering, Gaussian filters, Software

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Proceedings Article | 14 September 2016 Paper

Fringe-projection method for three-dimensional digitization of human faces

Kenia Picos, Rigoberto Juarez-Salazar, Víctor Díaz-Ramírez

Proceedings Volume 9970, 99701Q (2016) https://doi.org/10.1117/12.2238402

KEYWORDS: 3D modeling, Facial recognition systems, Fringe analysis, Detection and tracking algorithms, Object recognition, Phase shifts, Phase shift keying, Fourier transforms, Cameras, Modulation

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Proceedings Article | 14 September 2016 Presentation + Paper

Obstacle recognition for path planning in autonomous mobile robots

Ulises Orozco-Rosas, Kenia Picos, Oscar Montiel, Roberto Sepúlveda, Víctor Díaz-Ramírez

Proceedings Volume 9970, 99700X (2016) https://doi.org/10.1117/12.2237412

KEYWORDS: Mobile robots, Navigation systems, Machine vision, Computer simulations, Computing systems, Detection and tracking algorithms, Environmental sensing, Evolutionary algorithms, Electroluminescence, Fourier transforms

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Proceedings Article | 14 September 2016 Presentation + Paper

Simple method for correction of distortion in images

Leopoldo Gaxiola, Rigoberto Juarez-Salazar, Victor Diaz-Ramirez

Proceedings Volume 9970, 99700P (2016) https://doi.org/10.1117/12.2237928

KEYWORDS: Distortion, Cameras, Image processing, 3D image processing, Demodulation, Imaging systems, Calibration, Computer simulations, Error analysis, Coded apertures

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SPIE Journal Paper | 7 June 2016

Accurate three-dimensional pose recognition from monocular images using template matched filtering

Kenia Picos, Victor Diaz-Ramirez, Vitaly Kober, Antonio Montemayor, Juan J. Pantrigo

OE, Vol. 55, Issue 06, 063102, (June 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.6.063102

KEYWORDS: Detection and tracking algorithms, 3D modeling, 3D acquisition, 3D image processing, Image filtering, Target recognition, Genetic algorithms, Target detection, Image processing, Optical filters

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Proceedings Article | 22 September 2015 Paper

Robust illumination-invariant tracking algorithm based on HOGs

Daniel Miramontes-Jaramillo, Vitaly Kober, Víctor Díaz-Ramírez

Proceedings Volume 9599, 95991Q (2015) https://doi.org/10.1117/12.2186424

KEYWORDS: Detection and tracking algorithms, Video, Image processing, Sensors, Algorithm development, Cameras, Video acceleration, Video surveillance, Computer simulations, Image sensors

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Proceedings Article | 22 September 2015 Paper

Performance evaluation of correlation filters for target tracking

Leopoldo Gaxiola, Victor Diaz-Ramirez, Juan J. Tapia, Pascuala García-Martínez, Andres Cuevas

Proceedings Volume 9599, 959904 (2015) https://doi.org/10.1117/12.2188433

KEYWORDS: Electronic filtering, Image filtering, Detection and tracking algorithms, Filtering (signal processing), Target detection, Phase only filters, Video, Composites, Digital filtering, Signal processing

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Proceedings Article | 10 September 2015 Paper

Real-time image dehazing using local adaptive neighborhoods and dark-channel-prior

Jesus Valderrama, Víctor Díaz-Ramírez, Vitaly Kober, Enrique Hernandez

Proceedings Volume 9598, 95981G (2015) https://doi.org/10.1117/12.2188491

KEYWORDS: Image processing, Air contamination, Image transmission, Image restoration, Signal processing, Light scattering, Graphics processing units, Computer simulations, Statistical analysis, Scattering

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Proceedings Article | 9 September 2015 Paper

A 3D approach for object recognition in illuminated scenes with adaptive correlation filters

Kenia Picos, Víctor Díaz-Ramírez

Proceedings Volume 9598, 95981E (2015) https://doi.org/10.1117/12.2187936

KEYWORDS: 3D acquisition, Object recognition, 3D modeling, RGB color model, Detection and tracking algorithms, 3D image processing, Light sources and illumination, Image filtering, Computing systems, Image processing

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Proceedings Article | 9 September 2015 Paper

Robust estimators for speech enhancement in real environments

Yuma Sandoval-Ibarra, Victor Diaz-Ramirez, Vitaly Kober

Proceedings Volume 9598, 959813 (2015) https://doi.org/10.1117/12.2188408

KEYWORDS: Signal to noise ratio, Interference (communication), Signal processing, Statistical analysis, Synthetic aperture radar, Analytical research, Computer simulations, Process modeling, Databases, Computer science

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Proceedings Article | 23 September 2014 Paper

Multiple objects tracking with HOGs matching in circular windows

Daniel Miramontes-Jaramillo, Vitaly Kober, Víctor Díaz-Ramírez

Proceedings Volume 9217, 92171N (2014) https://doi.org/10.1117/12.2061246

KEYWORDS: Detection and tracking algorithms, Video processing, Video acceleration, Video, Image processing, Genetic algorithms, Computing systems, Image enhancement, Digital image processing

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Proceedings Article | 23 September 2014 Paper

Single image dehazing using local adaptive signal processing

Jesus Valderrama, Victor Diaz-Ramirez, Vitaly Kober

Proceedings Volume 9217, 92171P (2014) https://doi.org/10.1117/12.2062770

KEYWORDS: Image processing, Image analysis, Prototyping, Air contamination, Image quality, Signal processing, Error analysis, Image restoration, Image acquisition, Statistical analysis

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Proceedings Article | 23 September 2014 Paper

Target tracking using interest point detection and correlation filtering

Leopoldo Gaxiola, Víctor Diaz-Ramirez, Juan Tapia

Proceedings Volume 9217, 921717 (2014) https://doi.org/10.1117/12.2062335

KEYWORDS: Target detection, Detection and tracking algorithms, Sensors, Composites, Video, Image filtering, Target recognition, Electronic filtering, Filtering (signal processing), Signal processing

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Proceedings Article | 23 September 2014 Paper

Facial recognition using composite correlation filters designed by multiobjective combinatorial optimization

Andres Cuevas, Victor Diaz-Ramirez, Vitaly Kober, Leonardo Trujillo

Proceedings Volume 9217, 921710 (2014) https://doi.org/10.1117/12.2062348

KEYWORDS: Composites, Signal to noise ratio, Facial recognition systems, Detection and tracking algorithms, Optimization (mathematics), Evolutionary algorithms, Micro optical fluidics, Image filtering, Target detection, Computer simulations

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Proceedings Article | 19 September 2014 Paper

A roadmap to global illumination in 3D scenes: solutions for GPU object recognition applications

Kenia Picos, Victor Díaz-Ramírez, Juan Tapia

Proceedings Volume 9216, 921607 (2014) https://doi.org/10.1117/12.2062039

KEYWORDS: Object recognition, Light sources and illumination, Light sources, Ray tracing, Signal to noise ratio, Computer simulations, Visualization, Photons, RGB color model, Light

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Proceedings Article | 26 September 2013 Paper

Object tracking under nonuniform illumination with adaptive correlation filtering

Kenia Picos, Víctor Díaz-Ramírez, Vitaly Kober

Proceedings Volume 8855, 88550H (2013) https://doi.org/10.1117/12.2024698

KEYWORDS: Target detection, Signal to noise ratio, Image filtering, Electronic filtering, Motion models, Motion estimation, Fourier transforms, Rutherfordium, Digital filtering, Error analysis

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Proceedings Article | 26 September 2013 Paper

Real-time object tracking with correlation filtering and state prediction

Viridiana Contreras, Victor Díaz-Ramírez, Vitaly Kober, Juan Tapia-Armenta

Proceedings Volume 8856, 885619 (2013) https://doi.org/10.1117/12.2024363

KEYWORDS: Image filtering, Digital filtering, Signal to noise ratio, Target detection, Electronic filtering, Classification systems, Composites, Filtering (signal processing), Computing systems, Motion models

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Proceedings Article | 26 September 2013 Paper

Design of composite correlation filters for object recognition using multi-objective combinatorial optimization

Alejandra Serrano Trujillo, Víctor Díaz Ramírez, Leonardo Trujillo

Proceedings Volume 8856, 885605 (2013) https://doi.org/10.1117/12.2024597

KEYWORDS: Signal to noise ratio, Image filtering, Composites, Detection and tracking algorithms, Evolutionary algorithms, Object recognition, Target recognition, Pattern recognition, Electronic filtering, Optimization (mathematics)

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Proceedings Article | 15 October 2012 Paper

Improvement of facial recognition with composite correlation filters designed with combinatorial optimization

Sergio Pinto-Fernández, Victor Díaz-Ramírez

Proceedings Volume 8498, 849807 (2012) https://doi.org/10.1117/12.930301

KEYWORDS: Image filtering, Composites, Facial recognition systems, Detection and tracking algorithms, Pattern recognition, Evolutionary algorithms, Databases, Optimization (mathematics), Computer simulations, Electronic filtering

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Proceedings Article | 15 October 2012 Paper

Real-time multiclass object recognition system based on adaptive correlation filtering

Viridiana Contreras, Victor Diaz-Ramirez, Francisco Ramirez-Arias, Kenia Picos

Proceedings Volume 8498, 849808 (2012) https://doi.org/10.1117/12.930299

KEYWORDS: Image filtering, Filtering (signal processing), Digital filtering, Composites, Target recognition, Pattern recognition, Object recognition, Detection and tracking algorithms, Target detection, Real-time computing

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SPIE Journal Paper | 9 April 2012

Multiclass pattern recognition using adaptive correlation filters with complex constraints

Victor Díaz-Ramírez, Oliver Campos-Trujillo, Vitaly Kober, Pablo Aguilar-Gonzalez

OE, Vol. 51, Issue 03, 037203, (April 2012) https://doi.org/10.1117/12.10.1117/1.OE.51.3.037203

KEYWORDS: Digital filtering, Image filtering, Detection and tracking algorithms, Target recognition, Composites, Pattern recognition, Optical filters, Image classification, Optical pattern recognition, Optical engineering

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Proceedings Article | 22 September 2011 Paper

Multiclassification of objects in cloudy environments

Oliver Campos Trujillo, Francisco Ramirez Arias, Victor Diaz-Ramirez

Proceedings Volume 8135, 81350C (2011) https://doi.org/10.1117/12.894363

KEYWORDS: Detection and tracking algorithms, Image filtering, Nonlinear filtering, Digital image processing, Current controlled current source, Nonlinear optics, Computer simulations

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Proceedings Article | 13 September 2011 Paper

Multi-objective adaptive composite filters for object recognition

Jose Armenta-Nieblas, Victor Diaz-Ramirez, Juan Tapia-Armenta

Proceedings Volume 8134, 813404 (2011) https://doi.org/10.1117/12.894354

KEYWORDS: Neptunium, Composites, Digital filtering, Object recognition, Detection and tracking algorithms, Optical filters, Adaptive optics, Photonics, Data processing, Current controlled current source

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Proceedings Article | 8 September 2010 Paper

Improvement of visual perception in cloudy environments

Francisco Arias, Victor Diaz-Ramirez

Proceedings Volume 7798, 779829 (2010) https://doi.org/10.1117/12.860811

KEYWORDS: Scattering, Visualization, Light scattering, Signal attenuation, Atmospheric modeling, Computer simulations, Atmospheric particles, Cameras, Image processing, Machine vision

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Proceedings Article | 8 September 2010 Paper

Simultaneous recognition and classification of multiple objects with a complex composite filter

Oliver Campos-Trujillo, Victor Diaz-Ramirez

Proceedings Volume 7797, 77971E (2010) https://doi.org/10.1117/12.860937

KEYWORDS: Composites, Target recognition, Photonics, Data processing, Current controlled current source, Radon, Image filtering, Computer simulations

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Proceedings Article | 1 September 2009 Paper

Improvement of pattern recognition with a heuristic design of correlation filters

Oskardie Castro, Victor Diaz-Ramirez, Arnoldo Diaz-Ramirez, Vitaly Kober

Proceedings Volume 7442, 744217 (2009) https://doi.org/10.1117/12.826639

KEYWORDS: Image filtering, Genetic algorithms, Composites, Detection and tracking algorithms, Target recognition, Target detection, Chemical elements, Pattern recognition, Computer simulations, Digital filtering

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Proceedings Article | 3 September 2008 Paper

Detection of circuit-board components with an adaptive multiclass correlation filter

Victor Diaz-Ramirez, Vitaly Kober

Proceedings Volume 7072, 70721D (2008) https://doi.org/10.1117/12.795251

KEYWORDS: Image filtering, Digital filtering, Detection and tracking algorithms, Computer simulations, Pattern recognition, Printed circuit board testing, Electronic components, Target detection, Composites, Inspection

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Proceedings Article | 20 September 2007 Paper

Illumination invariant adaptive joint transform correlator

Victor Diaz, Vitaly Kober

Proceedings Volume 6695, 66951B (2007) https://doi.org/10.1117/12.735057

KEYWORDS: Image filtering, Target detection, Joint transforms, Optical correlators, Pattern recognition, Reflectivity, Computer simulations, Light sources, Light, Detection and tracking algorithms

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Proceedings Article | 9 February 2007 Paper

Nonlinear effects in the propagation of short laser pulses in air

Camilo Ruiz, J. San Román, I. Sola, C. Méndez, J. A. Perez, D. Delgado, V. Diaz, L. Plaja, I. Arias, L. Roso

Proceedings Volume 6483, 64830G (2007) https://doi.org/10.1117/12.699485

KEYWORDS: Solitons, Diffraction, Kerr effect, Plasma, Beam propagation method, Numerical integration, Pulsed laser operation, Ionization, Modulation, Phase shifts

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Proceedings Article | 30 August 2006 Paper

Pattern recognition with an adaptive phase-input joint transform correlator

Victor Diaz-Ramirez, Vitaly Kober, Josue Alvarez-Borrego

Proceedings Volume 6311, 631113 (2006) https://doi.org/10.1117/12.678546

KEYWORDS: Optical correlators, Joint transforms, Image filtering, Spatial light modulators, Computer simulations, Modulation, Phase shift keying, Fourier transforms, Detection and tracking algorithms, Calibration

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Proceedings Article | 22 May 2006 Paper

Observation of channels of radiation during the propagation in air of short pulses below the collapse threshold

Julio San Roman, Camilo Ruiz, Luis Plaja, Cruz Mendez, Victor Diaz, Isabel Arias, Luis Roso

Proceedings Volume 6256, 625606 (2006) https://doi.org/10.1117/12.682244

KEYWORDS: Diffraction, Solitons, Pulsed laser operation, Kerr effect, Beam propagation method, Laser systems engineering, Laser beam propagation, Crystals, Electrons, Refractive index

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Proceedings Article | 16 September 2005 Paper

Real-time pattern recognition with adaptative correlation filters

Victor Diaz-Ramirez, Vitaly Kober, Josue Álvarez-Borrego

Proceedings Volume 5909, 590921 (2005) https://doi.org/10.1117/12.617815

KEYWORDS: Image filtering, Phase only filters, Computer simulations, Pattern recognition, Spatial light modulators, Optical correlators, Electronic filtering, Digital filtering, Optical filters, Calibration

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Proceedings Article | 30 September 2003 Paper

Spatial frequency diversity in liquid crystal spatial light modulators applied to signal-to-noise ratio improvement in coherent optodigital processors

Angel Sauceda-Carvajal, Maximiliano Vera Perez, Victor Hugo Diaz Ramirez, Arturo Bocanegra-Haro, Eduardo Tepichin-Rodriguez

Proceedings Volume 5264, (2003) https://doi.org/10.1117/12.514677

KEYWORDS: Signal processing, Liquid crystals, Signal to noise ratio, Spatial frequencies, Electronics, Image filtering, Interference (communication), Transmittance, Optical filters, Particles

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