Alireza Fathi

Alireza Fathi

Ph.D. Student, Wall Lab, School of Interactive Computing

College of Computing
Georgia Institute of Technology

Email: afathi3@gatech.edu

I am currently a Ph.D. candidate at GeorgiaTech working with Jim Rehg. I worked with Greg Mori during my Masters. I have also closely worked with Jessica Hodgins, Frank Dellaert and John Krumm.

News

05/03/2013: I will defend on May 22nd, 2013. My thesis committee members are James Rehg, Martial Hebert, Antonio Torralba, Gregory Abowd, Aaron Bobick and Thad Starner.

02/24/2013: Paper accepted to CVPR 2013, Modeling Actions through State Changes (PDF).

06/25/2012: Paper accepted to ECCV 2012, Learning to Recognize Daily Actions using Gaze (PDF, GTEA Gaze(+) Dataset).

02/26/2012: Paper accepted to CVPR 2012, Social Interactions: A First-Person Perspective (PDF), get the dataset here.

01/21/2012: I am the co-organizer of the 2nd IEEE workshop on Egocentric (First-Person) Vision in conjunction with CVPR 2012.

Publications

Google Scholar

	Modeling Actions through State Changes Alireza Fathi, James M. Rehg CVPR, 2013 (PDF)
	Learning to Recognize Daily Actions using Gaze Alireza Fathi, Yin Li, James M. Rehg ECCV, 2012 (PDF, Project Page)
	Detecting Eye Contact using Wearable Eye-Tracking Glasses Zhefan Ye, Yin Li, Alireza Fathi, Yi Han, Agata Rozga, Gergory D. Abowd, James M. Rehg 2nd Workshop on Pervasive Eye Tracking and Mobile Eye-based Interaction (in conjunction with UbiComp), 2012 (PDF)
	Social Interactions: A First-Person Perspective Alireza Fathi, Jessica K. Hodgins, James M. Rehg CVPR, 2012 (PDF, Dataset)
	Understanding Egocentric Activities Alireza Fathi, Ali Farhadi, James M. Rehg ICCV, 2011 (PDF, Dataset)
	Learning to Recognize Objects in Egocentric Activities Alireza Fathi, Xiaofeng Ren, James M. Rehg CVPR, 2011 (PDF, Dataset)
	Combining Self Training and Active Learning for Video Segmentation Alireza Fathi, Maria Florina Balcan, Xiaofeng Ren, James M. Rehg BMVC, 2011 (PDF, Abstract, Software)
	Detecting Road Intersections from GPS Traces Alireza Fathi, John Krumm GIScience, 2010 (PDF)
	Action Recognition by Learning Mid-Level Motion Features Alireza Fathi, Greg Mori CVPR, 2008 (PDF, Bibtex)
	Human Pose Estimation using Motion Exemplars Alireza Fathi, Greg Mori ICCV, 2007 (PDF, Bibtex, More Information, Slides, Course Project that led to this paper)
	Voice Synthesis using the Generalized Pressure-Controlled Valve Tamara Smyth, Alireza Fathi International Computer Music Conference (ICMC), 2008 (PDF)
	A Standard Workflow for Illumination-Invariant Image Extraction Mark S. Drew, Muntaseer Salahuddin, Alireza Fathi 15th Color and Imaging Conference, 2007 (PDF)
	EasySLAM Alireza Fathi, Alex Cunninghum, Balmanohar Paluri, Kai Ni and Frank Dellaert GVU Technical Report (GIT-GVU-10-03), 2010. (Link)
	Local Exponential Maps: Towards Massively Distributed Multi-Robot Mapping Frank Dellaert, Alireza Fathi, Alex Cunninghum, Balmanohar Paluri, Kai Ni GVU Technical Report(GIT-GVU-10-04), 2010. (Link)
	Poseidon Team Description Paper Nasrin Mostafazadeh, Saba Ardeshiri, Sepideh Movaghati, Shadi Hariri, Zeinab Jahanzad, Alireza Fathi, Majid Valipour Ranked 2nd in Rescue Simulation League, Robocup 2006, Bremen, Germany (PDF)
	Impossibles Sony Aibo 4-Legged RoboCup Technical report Saman Aliari Zonouz, Hamid Reza Vaezi Joze, Siavash Rahbar, Majid Valipour, Alireza Fathi RoboCup 2006, Bremen, Germany. (PDF)
	Impossibles Sony Aibo 4-Legged RoboCup Team Description Paper Hamid Reza Vaezi Joze, Saman Aliari Zonouz, Siavash Rahbar, Majid Valipour, Alireza Fathi RoboCup 2006, Bremen, Germany. (PDF)
	Impossibles Team Description Paper Jafar Habibi, Alireza Fathi, Saeed Hassanpour, Mohammad Reza Ghodsi, Behzad Sadjadi, Hamid Reza Vaezi, Majid Valipour Ranked 1st in Rescue Similation League, RoboCup 2005, Osaka, Japan (PDF)

Invited Talks

An Egocentric Paradigm for Learning to Understand Daily Activities

MIT, Oct 23, 2012.
UC Irvine, Oct 3, 2012.
UCLA, Oct 2, 2012.
CMU VASC Seminar, Sep 10, 2012.

Datasets/Software

Interactive Image Segmentation Toolbox

My Computer Vision Toolbox

GTEA Gaze(+)

Social Interactions at Disney parks

Georgia Tech Egocentric Activities (GTEA)

Projects

Egocentric (First-Person) Vision: An egocentric vision system, is a framework consisting of a wearable camera that continuoulsy captures the scene in front of the first-person. In particular, I define an egocentric vision system as a framework that leverages different levels of first-person attention to identify important objects and faces in the scene that contribute to subject's activities. First-person's attitude, including where she looks (gaze) and what she does (hands manipulating objects) provide an invaluable context for determining the objects that grab her attention at any given time. Our goal is to use these structured sources of information coming from first-person in order to enable weakly supervised recognition of objects and activities.

Alireza Fathi, Yin Li, James M. Rehg, Learning to Recognize Daily Actions using Gaze, ECCV, 2012. (PDF, GTEA Gaze(+) Dataset)

Alireza Fathi, Jessica K. Hodgins, James M. Rehg, Social Interactions: A First-Person Perspective, CVPR, 2012. (PDF, Dataset)

Alireza Fathi, Ali Farhadi, James M. Rehg, Understanding Egocentric Activities, ICCV, 2011. (PDF, Dataset)

Alireza Fathi, Xiaofeng Ren, James M. Rehg, Learning to Recognize Objects in Egocentric Activities, CVPR, 2011. (PDF, Dataset)

Video and Image Segmentation: I believe that segmentation is probably the most fundamental problem in computer vision. If segmentation is solved, many of the big challenges in the field become trivial.

Alireza Fathi, Maria Florina Balcan, Xiaofeng Ren, James M. Rehg, Combining Self Training and Active Learning for Video Segmentation, BMVC, 2011 (PDF, Abstract, Software).

Action Recognition (ICCV07, CVPR08, ICCV11, CVPR12, MSc Thesis): I aim at developing action recognition techniques that rely on semantically meaningful features which capture interaction of objects with each other. This is in contrast to state of the art techniques that are based on space-time interest points or point trajectories.

Alireza Fathi, Greg Mori, Action Recognition by Learning Mid-level Motion Features, CVPR, 2008. (PDF, Bibtex)

Human Pose Estimation:

Alireza Fathi and Greg Mori, Human Pose Estimation using Motion Exemplars, ICCV, 2007. (PDF, Bibtex, More Information, Slides, Course Project that led to this paper)

MSc Thesis: Alireza Fathi, Human Figure Tracking using Motion Exemplars, Department of Computing Science, Simon Fraser University, 2008. (PDF)

Localization and Mapping:

Helped in developing GTSAM as part of Frank Dellaert's team.

Alireza Fathi, John Krumm, Detecting Road Intersections from GPS Traces, GIScience, 2010. (PDF)

Alireza Fathi, Alex Cunninghum, Balmanohar Paluri, Kai Ni and Frank Dellaert, EasySLAM, GVU Technical Report(GIT-GVU-10-03), 2010. (Link)

Frank Dellaert, Alireza Fathi, Alex Cunninghum, Balmanohar Paluri and Kai Ni, Local Exponential Maps: Towards Massively Distributed Multi-robot Mapping, GVU Technical Report(GIT-GVU-10-04), 2010. (Link)

Color Constancy and Illumination Invariance:

Mark S. Drew, Muntaseer Salahuddin, Alireza Fathi, A Standardized Workflow for Illumination-Invariant Image Extraction, 15th Color Imaging Conference, New Mexico, 2007. (PDF)

RoboCup:

Nasrin Mostafazadeh, Saba Ardeshiri, Sepideh Movaghati, Shadi Hariri, Zeinab Jahanzad, Alireza Fathi, Majid Valipour, Poseidon Team Description Paper, RoboCup 2006, Bremen, Germany. (PDF)

Saman Aliari Zonouz, Hamid Reza Vaezi Joze, Siavash Rahbar, Majid Valipour, Alireza Fathi, Impossibles Sony Aibo 4-Legged RoboCup Technical report, RoboCup 2006, Bremen, Germany. (PDF)

Hamid Reza Vaezi Joze, Saman Aliari Zonouz, Siavash Rahbar, Majid Valipour, Alireza Fathi, Impossibles Sony Aibo 4-Legged Team Description Paper, RoboCup 2006, Bremen, Germany. (PDF)

Jafar Habibi, Alireza Fathi, Saeed Hassanpour, Mohammad Reza Ghodsi, Behzad Sadjadi, Hamid Reza Vaezi, Majid Valipour, Impossibles Team Description Paper, RoboCup 2005, Osaka, Japan. (PDF)

Other:

Tamara Smyth, Alireza Fathi, Voice Synthesis using the Generalized Pressure-Controlled Valve, International Computer Music Conference (ICMC), 2008. (PDF)

BSc Thesis: Alireza Fathi, Assembler and Simulator for IBM 360/370, Computer Engineering Department, Sharif University of Technology, 2004. (Director: Dr. Hamid Sarbazi Azad) (Persian PDF)

Courses

Partial Differential Equations for Image Procesing and Vision (Anthony Yezzi)
Advanced Internet Computing (Ling Liu)
Linear Optimization (Craig Tovey)
Computational Data Analysis (Guy Lebanon)
Behavior Imaging (Jim Rehg, Agata Rozga)
Spectral Algorithms (Santosh Vempala)
Algorithms (Vijay Vazirani)
Numerical Optimization (Karen Liu)
Theoretical Machine Learning (Maria Florina Balcan)
Probabilistic Graphical Models (Jim Rehg)
Computer Vision (Jim Rehg)
Numerical Linear Algebra (Hongyuan Zha)
3D Reconstruction and Mapping in Computer Vision (Frank Dellaert)
Computer Graphics (Jarek Rossignac)
Introduction to Graduate Studies (Nick Feamster and Alex Gray)
Formal Verification (Eugenia Ternovska)
Robot Vision (Zenian Li)
Autonomous Robots (Richard Vaughan)
Algorithm Design (Joseph Peters)
Discriminative Methods in Machine Learning (Anoop Sarkar)
Illumination in Images and Video (Mark Drew)
Recognition Problems in Computer Vision (Greg Mori)
Computational Modeling for Sound Synthesis (Tamara Smyth)

Services

Co-Chair of 2nd IEEE Workshop on Egocentric (First-Person) Vision in Conjunction with CVPR 2012.

Program Committee member of IEEE International Conference on Automatic Face and Gesture Recognition (FG) 2013.

Program Committee member of AAAI 2012.

Reviewer of IEEE Transaction on Pattern Analysis and Machine Intelligence (PAMI).

Reviewer of IEEE Conference on Computer Vision and Pattern Recognition (CVPR).

Reviewer of International Conference on Computer Vision (ICCV).

Reviewer of British Machine Vision Conference (BMVC).

Reviewer of ACM Conference on Ubiquitous Computing (UbiComp).

Reviewer of IEEE Transactions on Circuits and Systems for Video Technology (TCSVT).

Useful Links

Notes on Graduate Studies, Alireza Fathi, 2010.

How to Buy a Used Car, Alireza Fathi, 2010.

Recent Hot Machine Learning Hammers used in Computer Vision, Alireza Fathi, 2011.

My Facebook App for Data Collection

Simultaneous Recovery of Shape, Motion and Grouping by Applying Rank Constraints, 2010. (PDF, Poster)

Experience

Teaching Experience:

Teaching Assistant of CMPT225 (Data Structures), Mrs. Maryam Aliyar, Department of Computing Science, Simon Fraser University, Summer 2008.
Teaching Assistant of CMPT225 (Artificial Intelligence), Dr. Veronica Dahl, Department of Computing Science, Simon Fraser University, Summer 2008.
Teaching Assistant of CMPT300 (Operating Systems 1), Mr. Brad Bart, Department of Computing Science, Simon Fraser University, Spring 2007.
Teaching Assistant of CMPT275 (Software Engineering 1), Mrs. Anne Lavergne, Department of Computing Science, Simon Fraser University, Fall 2006.
Teaching Assistant of Robotic Systems Course, Dr. L. Sharif, Computer Engineering Department, Sharif University of Technology, Spring 2006.
Teaching Assistant of Computer Organization course, Dr. H. S. Azad, Computer Engineering Department, Sharif University of Technology, Spring 2006.
Teaching Assistant of Computer Organization course, Dr. H. S. Azad, Computer Engineering Department, Sharif University of Technology, Fall 2005.
Teaching Assistant of Operating Systems course, Dr. M. Azmi, Computer Engineering Department, Sharif University of Technology, Fall 2004.
Teaching Assistant of Advanced Programming course, Mr. M. Saniee, Computer Engineering Department, Sharif University of Technology, Fall 2003.

Research Experience:

Graduate Research Assistantship with Dr. James M. Rehg, Wall Lab, College of Computing, Georgia Institute of Technology, 2009-Now.
Graduate Research Assistantship with Dr. Frank Dellaert, BORG Lab, College of Computing, Georgia Institute of Technology, Fall 2008-Spring 2009.
Graduate Research Assistantship with Dr. Greg Mori, Vision and Media Lab, Department of Computing Science, Simon Fraser University, 2006-2008.
Undergraduate Research Assistantship with Dr. J. Habibi, AI & Robotics Lab, Computer Engineering Department, Sharif University of Technology, 2005.

Work Experience:

Internship at Disney Research, Pittsburgh, Pensylvania, Summer 2011 (My mentor was Jessica Hodgins and I had a very interesting project on which I am still working and will submit a paper to CVPR12 about it).
Internship at Micorosoft Reseach, Redmond, Seattle, Summer 2009 (My mentor was John Krumm).
Internship in KoolHausGames Co., Vancouver, Summer 2007.
Team Leader and coach of Poseidon Rescue Simulation Team, A seven-member Rescue Simulation Team in Farzanegan (NODET) High School, 2005.
Lecturer of C++ course, for elected students in Ministry of Education, Iran, 2005.
Lecturer of PHP course, AICT center, Sharif University of Technology, 2003.

Languages:

Farsi (native): Spoken by 82 million people native and 62 million as their second language, Indo-European
English (good in writing, reading and speaking): Spoken by 400 million native and 1.4 billion as their second language, Indo-European
Azeri (native): Spoken by about 33 million people, Turkic
Arabic (good in writing, reading and translation): Spoken by 442 million native and 246 million non-native people, Afro-Asiatic
I am considering learning Spanish currently.

Fun

This video is seen by 20,000 people by now (Nov 2010)