The Ohio State University

 
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205 Dreese Laboratory
Department of Electrical and Computer Engineering
The Ohio State University
2015 Neil Avenue
Columbus, OH 43210 USA

E-mail: aleix@ece.osu.edu

Phone: (614) 688-8225 or (614) 292-2571

New: 2020 CVPR Best Paper Award Nominee. Read our paper: PDF

New: 2018 ECCV Best paper (honorable mention) award. Read our paper: PDF

I am currently on leave and not taking any new students.

Short Bio

Aleix M. Martinez is a Professor in the Department of Electrical and Computer Engineering at The Ohio State University (OSU), where he is the founder and director of the the Computational Biology and Cognitive Science Lab. He is also affiliated with the Department of Biomedical Engineering and to the Center for Cognitive Science where he is a member of the executive committee. Prior to joining OSU, he was affiliated with the Electrical and Computer Engineering Department at Purdue University and with the Sony Computer Science Lab. He has served as an associate editor of IEEE Transactions on Pattern Analysis and Machine Intelligence, IEEE Transaction on Affective Computing, Computer Vision and Image Understanding, and Image and Vision Computing. He has been an area chair for many top conferences and was Program Chair for CVPR 2014 in his hometown, Columbus, OH. He is also a member of the Cognition and Perception study section at NIH and has served as reviewer for numerous NSF, NIH as well as other national and international funding agencies.

Dr. Martinez is the recepient of numerous awards, including best paper awards at ECCV and CVPR, Lumely Research Award, and a Google Faculty Research Award.

Dr. Martinez research has been covered by numerous national media outlets, including CNN, The Huffington Post, Time Magazine, CBS News and NPR, as well as intrernational outets, including The Guardian, Spiegel, El Pais and Le Monde. A selection of recent stories is available here.

Tutorials & Videos
 
Publications

2020

Computing the Testing Error Without a Testing Set
C. Corneanu, S. Escalera & A.M. Martinez
CVPR, 2020
PDF

GANimation: One-Shot Anatomically Consistent Facial Animation
A. Pumarola, A. Agudo, A.M. Martinez, A. Sanfeliu, F. Moreno-Noguer
IJCV, 128, pp. 698–713, 2020
Web


2019

What does it mean to learn in deep networks? And, how does one detect adversarial attacks?
C. Corneanu, S. Escalera & A.M. Martinez
CVPR, 2019
PDF

Context may reveal how you feel
A.M. Martinez
Proceedings of the National Academy of Sciences (PNAS), 2019
PDF

Cross-Cultural and Cultural Specific Production and Perception of Facial Expressions of Emotion in the Wild
R. Srinivasan & A.M. Martinez
IEEE Transactions on Affective Computing, 2019.
PDF

Discriminant Functional Learning of Color Features for the Recognition of Facial Action Units and their Intensities
C.F. Benitez-Quiroz, R. Srinivasan & A.M. Martinez
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2019.
PDF

Emotional Expressions Reconsidered: Challenges to Inferring Emotion From Human Facial Movements
L.F. Barrett, R. Adolphs, S. Marsella, A.M. Martinez & S.D. Pollak
Psychological Science in the Public Interest, in press.
PDF

2018

Facial Color Is an Efficient Mechanism to Visually Transmit Emotion
C.F. Benitez-Quiroz, R. Srinivasan & A.M. Martinez
Proceedings of the National Academy of Sciences, 2018
Web   PDF

Learning Facial Action Units from Web Images with Scalable Weakly Supervised Clustering
K. Zhao, W.-S. Chu, A.M. Martinez
CVPR, 2018
PDF

GANimation: Anatomically-aware facial animation from a single image
A. Pumarola, A. Agudo, A.M. Martinez, A. Sanfeliu, F. Moreno-Noguer
ECCV, 2018
PDF

2017

A simple, fast and highly-accurate algorithm to recover 3d shape from 2d landmarks on a single image
R. Zhao, Y. Wang & A.M. Martinez
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2018
Web

Recognition of Action Units in the Wild With Deep Nets and a New Global-Local Loss
C. F. Benitez-Quiroz, Y. Wang & A.M. Martinez
ICCV, 2017
PDF

Visual perception of facial expressions of emotion
A.M. Martinez
Current Opinion in Psychology 17, 27-33, 2017
PDF

Computational models of face perception
A.M. Martinez
Current Directions in Psychological Science 26(3), 263-269, 2017
PDF

2016

A Neural Basis of Facial Action Recognition in Humans
R. Srinivasan, J.D. Golomb & A.M. Martinez
The Journal of Neuroscience, 36(16): 4434-4442, 2016
Web   Video

EmotioNet: An accurate, real-time algorithm for the automatic annotation of a million facial expressions in the wild
C.F. Benitez-Quiroz*, R. Srinivasan*, A.M. Martinez
CVPR, 2016
*equal contribution.
PDF

Fast and precise face alignment and 3D shape reconstruction from a single 2D image
R. Zhao, Y. Wang, C. F. Benitez-Quiroz, Y. Liu, A.M. Martinez
ECCV, 2016
Web

The Not Face: A grammaticalization of facial expressions of emotion
C.F. Benitez-Quiroz, R. Wilbur & A.M. Martinez
Cognition, Vol. 150, 77-84, 2016
PDF

Labeled Graph Kernel for Behavior Analysis
R. Zhao, A.M. Martinez
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2015
PDF

2015

Compound Facial Expressions of Emotion: From basic research to clinical applications
S. Du, A.M. Martinez
Dialogues in Clinical Neuroscience, Vol. 17, No. 4, 2015
PDF

Multiple Ordinal Regression by Maximizing the Sum of Margins
O. Hamsici, A.M. Martinez
IEEE Transactions on Neural Networks and Learning Systems, 2015
Web

Precise Fiducial Detection
S. Rivera, A.M. Martinez
Encyclopedia of Biometrics, 1268-1271, 2015

Face Recognition, Overview
A.M. Martinez
Encyclopedia of Biometrics, 503-507, 2015

2014

Compound Facial Expressions of Emotion
S. Du, Y. Tao, A.M. Martinez
Proceedings of the National Academy of Sciences 111 (15) E1454-E1462, 2014
PDF   
          Web              Video              CFEE database

Discriminant Features and Temporal Structure of Nonmanuals in American Sign Language
C.F. Benitez-Quiroz, K. Gokgoz, R.B. Wilbur, A.M. Martinez
PLoS ONE 9(2): e86268, 2014
PDF             Web             Elan code             ASL database             

Multiobjective Optimization for Model Selection in Kernel Methods in Regression
D. You, C.F. Benitez-Quiroz, A.M. Martinez
IEEE Transactions on Neural Networks and Learning Systems, 2014
Web            Matlab code 

Minimizing Nearest Neighbor Classification Error for Nonparametric Dimensionality Reduction
W. Bian, T. Zhou, A.M. Martinez, G. Baciu, D. Tao
IEEE Transactions on Neural Networks and Learning Systems, 2014
Web

2013

Salient and Non-salient Fiducial Detection Using a Probabilistic Graphical Model
C.F. Benitez-Quiroz, S. Rivera, P.F.U. Gotardo, A.M. Martinez
Pattern Recognition, 2013
PDF

Wait, are you sad or angry? Large exposure time differences required for the categorization of facial expressions of emotion
S. Du and A.M. Martinez
Journal of Vision, 13(4), 2013
PDF

2012

A Model of the Perception of Facial Expressions of Emotion by Humans: Research overview and perspectives
A.M. Martinez and S. Du
Journal of Machine Learning Research, Vol. 13, pp.1589-1608, 2012
PDF

Learning Deformable Shape Manifolds
S. Rivera and A.M. Martinez
Pattern Recognition, Vol. 45, No. 4, pp. 1792–1801, 2012
PDF

Learning Spatially-Smooth Mappings in Non-Rigid Structure from Motion
P.F.U. Gotardo, O.C. Hamsici and A.M. Martinez
ECCV, 2012
PDF                Demos

Automatic Selection of Eye Tracking Variables in Visual Categorization for Adults and Infants
S. Rivera, C. Best, H. Yim, A.M. Martinez, V./ Sloutsky, D.B. Walther
Proceedings of the 34th Annual Conference of the Cognitive Science Society, 2012
PDF               Web page of the project

2011

The Resolution of Facial Expressions of Emotion
S. Du and A.M. Martinez
Journal of Vision, 11(13):24, 1–13, 2011
PDF

Computing Smooth Time-Trajectories for Camera and Deformable Shape in Structure from Motion with Occlusion
P. Gotardo and A.M. Martinez
IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 33, No. 10, pp. 2051-2065, 2011
PDF             Demos and Matlab Code

Kernel Optimization in Discriminant Analysis
D. You, O. Hamsici and A.M. Martinez
IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 33, No. 3, 2011
PDF              Supplementary Documentation

Kernel Non-Rigid Structure from Motion
P.F.U. Gotardo and A.M. Martinez
ICCV, 2011
PDF                Demos

Deciphering the Face
A.M. Martinez
CVPR, 2011

PDF

Non-Rigid Structure from Motion with Complementary Rank-3 Spaces
P.F.U. Gotardo and A.M. Martinez
CVPR, 2011
PDF
               Demos

2010

Features versus Context: An approach for precise and detailed detection and delineation of faces and facial features
L. Ding and A.M. Martinez
IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 32, No. 11, pp 2022-2038, 2010
PDF              Supplementary Documentation               Manual & Automatic Annotations

A Computational Shape-based Model of Anger and Sadness Justifies a Configural Representation of Faces
D. Neth and A.M. Martinez
Vision Research, Vol. 50, pp. 1693–1711, 2010
Web              CogFest handouts 

Rigid Structure from Motion from a Blind Source Separation Perspective
J. Fortuna and A.M. Martinez
International Journal of Computer Vision, Vol. 88, No. 3, pp. 404-424, 2010
PDF

Bayes Optimal Kernel Discriminant Analysis
D. You and A.M. Martinez
CVPR, 2010
PDF

2009

Rotation Invariant Kernels and Their Application to Shape Analysis
O.C. Hamsici and A.M. Martinez
IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 31, No. 11, pp. 1985-1999, 2009
PDF

Emotion Perception in Emotionless Face Images Suggests a Norm-based Representation
D. Neth and A.M. Martinez
Journal of Vision, Volume 9, Number 1, Article 5, Pages 1-11, 2009
PDF                Short review in AP&P

Low-Rank Matrix Fitting Based on Subspace Perturbation Analysis with Applications to Structure from Motion
H. Jia and A.M. Martinez
IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 31, No. 4, 2009
PDF                 Supplementary Documentation                 Demo

Modelling and Recognition of the Linguistic Components in American Sign Language
L. Ding and A.M. Martinez
Image and Vision Computing, Vol. 27, No. 12, pp. 1826-1844, 2009
PDF

Active Appearance Models with Rotation Invariant Kernels
O.C. Hamsici and A.M. Martinez
ICCV, 2009

PDF                 Matlab Code

Support Vector Machines in Face Recognition with Occlusions
H. Jia and A.M. Martinez
CVPR, 2009
PDF

2008

Can low level image differences account for the ability of human observers to discriminate facial identity?
D.A. Wilbraham, J.C. Christensen, A.M. Martinez and J.T. Todd
Journal of Vision, Volume 8, Number 15, Article 5, Pages 1-12, 2008
PDF

Who Is LB1? Discriminant Analysis for the Classification of Specimens
A.M. Martinez and O.C. Hamsici
Pattern Recognition, Vol. 41, pp. 3436-3441, 2008
PDF                 Matlab Code

Using the information embedded in the testing sample to break the limits caused by the small sample size in microarray-based classification
M. Zhu and A.M. Martinez
BMC Bioinformatics, 9:280, 2008
PDF

Bayes Optimality in Linear Discriminant Analysis
O.C. Hamsici and A.M. Martinez
IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 30, No. 4, pp. 647-657, 2008
PDF                 Matlab Code

Pruning Noisy Bases in Discriminant Analysis
M. Zhu and A.M. Martinez
IEEE Transactions Neural Networks, Vol. 19, No. 1, pp. 148-157, 2008
PDF                 Matlab Code

Face Recognition with Occlusions in the Training and Testing Sets
H. Jia and A.M. Martinez
Proceedings of the IEEE International Conference on Automatic Face and Gesture Recognition, 2008
PDF

Precise Detailed Detection of Faces and Facial Features
L. Ding and A.M. Martinez
CVPR, 2008
PDF

2007

Spherical-Homoscedastic Distributions: The equivalency of spherical and Normal distributions in classification
O.C. Hamsici and A.M. Martinez
Journal of Machine Learning Research, 8(Jul):1583-1623, 2007
PDF                 Matlab Code

Spherical-homoscedastic Shapes
O.C. Hamsici and A.M. Martinez
ICCV, 2007
PDF

Sparse Kernels for Bayes Optimal Discriminant Analysis
O.C. Hamsici and A.M. Martinez
CVPR, workshop, 2007  [Best paper award]
PDF                 Matlab Code               

Recovering the Linguistic Components of the Manual Signs in American Sign Language
L. Ding and A.M. Martinez
Proceedings of IEEE Conference on Advanced Video and Signal-based Surveillance (AVSS), London (UK), 2007
PDF                 Demo

2006

Subclass Discriminant Analysis
M. Zhu and A.M. Martinez
IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 28, No. 8, pp. 1274-1286, 2006
PDF                 Matlab Code

A Weighted Probabilistic Approach to Face Recognition from Multiple Images and Video Sequences
Y. Zhang and A.M. Martinez
Image and Vision Computing, Vol. 24, No. 6, pp. 626-638, 2006
PDF                 Demo

Selecting Principal Components in a Two-Stage LDA Algorithm
M. Zhu and A.M. Martinez
CVPR, 2006
PDF                 Matlab Code

Three-dimensional Reconstruction of Shape and Motion for the Analysis of American Sign Language
L. Ding and A.M. Martinez
CVPR, 2006
PDF                 Demo

A Blind Source Separation Approach to Structure from Motion
J. Fortuna and A.M. Martinez
Proceedings of the Third International Symposium on 3D Data Processing, Visualization and Transmission, Chapel Hill (NC), 2006
PDF

Perturbation Estimation of the Subspaces for Structure from Motion with Noisy and Missing Data
H. Jia, J. Fortuna and A.M. Martinez
Proceedings of the Third International Symposium on 3D Data Processing, Visualization and Transmission, Chapel Hill (NC), 2006  [NSF award]
PDF

2005

Where Are Linear Feature Extraction Methods Applicable?
A.M. Martinez and M. Zhu
IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 27, No. 12, pp. 1934-1944, 2005.
PDF

Robust Motion Estimation under Varying Illumination
Y. Kim, A.M. Martinez and A.C. Kak
Image and Vision Computing, vol. 23, No. 4, pp. 365-375, 2005
PDF

Evaluation of the Modeling of Local Areas and Errors of Localization in FRGC’05
O.C. Hamsici and A.M. Martinez
CVPR, 2005
PDF

2004

On Combining Graph-Partitioning with Non-Parametric Clustering for Image Segmentation
A.M. Martinez, P. Mittrapiyanuruk and A.C. Kak
Computer Vision and Image Understanding, Vol. 95, No. 1, pp. 72-85, 2004
PDF

A Local Approach for Robust Optical Flow Estimation under Varying Illumination
Y. Kim, A.M. Martinez and A.C. Kak
Proceedings of British Machine Vision Conference (BMVC), 2004
PDF

Recognition of Expression Variant Faces Using Weighted Subspaces
Y. Zhang and A.M. Martinez
Proceedings of International Conference on Pattern Recognition (ICPR), Cambridge (UK),2004
PDF

Optimal Subclass Discovery for Discriminant Analysis
M. Zhu and A.M. Martinez
CVPR, workshop, 2004
PDF

From Static to Video: Face Recognition Using a Probabilistic Approach
Y. Zhang and A.M. Martinez
Proceedings of IEEE Workshop on Face Processing in Video (FPIV), 2004
PDF

2003

Matching Expression Variant Faces
A.M. Martinez
Vision Research, Vol. 43, Issue 9, pp. 1047-1060, 2003
PDF

Template-based Recognition of Static Sitting Postures
M. Zhu, A.M. Martinez and H.Z. Tan
CVPR, workshop, 2003
PDF

Recognizing Expression Variant Faces from a Single Sample Image per Class
A.M. Martinez
CVPR, 2003
PDF

2002

Recognizing Imprecisely Localized, Partially Occluded and Expression Variant Faces from a Single Sample per Class
A.M. Martinez
IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 24, No. 6, pp. 748-763, 2002
PDF              

Purdue ASL Database for the Recognition of American Sign Language
A.M. Martinez, R.B. Wilbur, R. Shay and A.C. Kak
Proceedings of IEEE International Conference on Multimodal Interfaces (ICMI), 2002
PDF  

Physical Correlates of Prosodic Structure in American Sign Language
R.B. Wilbur and A.M. Martinez,
Proceedings of the Chicago Linguistics Society (CLS), 2002
PDF

2001

Clustering in Image Space for Place Recognition and Visual Annotations for Human-robot Interaction
A.M. Martinez and J. Vitria.
IEEE Transactions on System Man and Cybernetics B, Vol. 31, No. 5, pp. 669-682, 2001
PDF                 Demo

PCA versus LDA
A.M. Martinez and A.C. Kak
IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 23, No. 2, pp. 228-233, 2001
PDF           

2000 and prior

Learning Mixture Models Using a Genetic Version of the EM Algorithm
A.M. Martinez and J. Vitria
Pattern Recognition Letters 21, pp. 759-769, 2000
PDF                 Code

A New Approach to Object-Related Image Retrieval
A.M. Martinez and J.R. Serra
Journal of Visual Languages and Computing Vol.11, No. 3, pp. 345-363, 2000
PDF

Recognition of Partially Occluded and/or Imprecisely Localized Faces Using a Probabilistic Approach
A.M. Martinez
CVPR, 2000
PDF

Semantic Access of Frontal Face Images: The expression-invariant problem
A.M. Martinez
Proceedings of IEEE Workshop on Content-Based Access of Images and Video Libraries, 2000
PDF

Face Image Retrieval Using HMMs
A.M. Martinez
Proceedings of IEEE CVPR'99 (Workshop on Content-Based Access of Images and Video Libraries), 1999
PDF  

Semantic Access to a Database of Images: An approach to object-related image retrieval
A.M. Martinez and J.R. Serra.
Proceedings of IEEE Multimedia Systems (ICMCS'99), 1999
PDF

Book Chapters

Face Recognition, Overview
A.M. Martinez
Encyclopedia of Biometric Recognition, Springer, 2009.

Face Recognition, Component-based
O.C. Hamsici and A.M. Martinez
Encyclopedia of Biometric Recognition, Springer, 2009.

A Biologically Inspired Model for the Simultaneous Recognition of Identity and Expression
D. Neth and A.M. Martinez
Biometrics: Theory, Methods, and Applications (Eds. N.V. Boulgouris, E. Micheli-Tzanakou & K.N. Plataniotis), Wiley, 2009.
PDF

Subset Modeling of Face Localization Error, Occlusion, and Expression
A.M. Martinez and Y. Zhang
In Face Processing: Advance Modeling and Methods (Eds. R. Chellappa & W. Zhao), Academic Press, 2005.
PDF

Physical Correlates of Prosodic Structure in American Sign Language
R.B. Wilbur and A.M. Martinez
In Chicago Linguistic Society, Vol. 38, 2002.
PDF