Computer Vision @ LEMS

Maria Isabel Restrepo Ph.D. Candidate Research Assistant Room: Barus & Holley 317 Phone: (401) 863-6179 Email: maria_restrepo@brown.edu URL: http://vision.lems.brown.edu/students/restrepo Curriculum Vitae: Download

Biography/Interests

I am currently a Ph.D student in Computer Vision at LEMS laboratory in the Engineering Department at Brown University. My Ph.D advisor is Dr. Joseph Mundy. My interests and current work are in the area of 3d feature detection, 3d object recognition and compositional hierarchies. I am also interested in 3D reconstruction, specifically in Bayesian learning of 3D world surface’s appearance and geometry from images. In the course of my Ph.D studies I received a M.S degree in Applied Mathematics, with course-work focused on probability theory. Before coming to Brown I received my B.S degree with honors in Electrical Engineering from Trinity College, where I was also part of the squash varsity team. I was borned and raced in the city of the eternal spring, Medellin, Colombia.

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News:

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April 2013: I have successfully defended my Ph.D thesis. I am now Dr. Isa :). Here are the abstract and thesis files.

February 2013: I will be defending my Ph.D thesis entitled "Characterization of Probabilistic Volumetric Models for 3-d Computer Vision" on April 19, 2013. Thesis committee: Dr. Joseph Mundy, Dr. Gabriel Taubin, Dr. Pedro Felzenszwalb and Dr. Radu Rusu. Looking forward to it!  

September, 2012: Our paper "High Resolution Surface Reconstruction from Multi-View Aerial Imagery" has been accepted at 3DIMPVT! I will try to update the related project page soon.

July 9, 2012: Our paper "An Evaluation of Local Descriptors for Object Charegorization in Probabilistic Volumetric Scenes" has been accepted at BMVC.

June 7, 2012: A preprint of our paper entitled "Characterization of 3-d Volumetric Probabilistic Scenes for Object Recognition" is now available a IEEEXplore. See related publication for a link to PDF.

Feb 13, 2012: I recently presented my paper entitled "Object Recognition in Probabilistic 3-d Volumetric Scenes" in ICPRAM 2012. The conference was in the beautiful Algarve region in Portugal. See related project for a link to slides and paper.

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Publications:

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Projects:

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Object Recognition in Probabilistic 3-d Scenes :

Visit project page here

Registration of Probabilistic Volumetric Models:

This is my most recent work, which is a chapter of my thesis. A related manuscript is under preparation. More details to come soon on the related project page 

High Resolution Surface Extraction from Aerial Imagery: 

Visit project page here

Compositional Hierachies in Probabilistic Scenes:

This work is described in this presentation, part of my Progress Examination at Brown

Probabilistic Volumetric Modeling:

Gilson G de Lima Ph.D. Candidate Research Assistant Room: Barus & Holley 317 Phone: (401) 863-6179 Email: gilson_lima@brown.edu URL: http://www.lems.brown.edu/~ggoncalv/ Curriculum Vitae: Download

Biography/Interests

I joined the School of Engineering (as a PhD student in Electrical Engineering ) at Brown University in Fall 2009 after five years at Federal University of Ceara (Brazil), where I earned my Bachelor of Engineering in Telematics.

During my first two years at Brown, I also worked as a supplemmentary teaching assistant (STA) for the courses: ENGN 1570 Linear System Analysis (Fall 2010) and ENGN 052 Electrical Circuits and Signals (Spring 2011).

In May 2011, I received a Master of Engineering degree from Brown University. During Summer 2011, I worked at Hewlett Packard Laboratories headquarters in Palo Alto, CA. HP also sponsored the 3rd year of my PhD studies thanks to a research grant that prof. Gabriel Taubin was awarded.

In Fall 2011, I was approved in my Progress Review examinations (the first of three requisites of the PhD program). Also, I was an STA for ENGN 1570 for the second time.

In Spring 2012, I was an STA for ENGN 2520 Pattern Recognition and Machine Learning. In the same period, our HP research grant was renewed, guaranteeing another year of private research funding.

In Fall 2012, I was approved in my Doctoral Preliminary Exams (the second of three requisites of the PhD program), then becoming a PhD candidate. The exams comprised four areas (2 minors and 2 majors), on the same day, one after the other, mixing oral answers and blackboard solutions. The minors were: APMA 2610 Recent Applications of Probability and Statistics (Prof. Matthew Harrison) and CSCI 1230 Introduction to Computer Graphics (Prof. Andries van Dam). The majors were: ENGN 2502 3D Photography (Prof. Gabriel Taubin) and ENGN 2520 Pattern Recognition and Machine Learning (Prof. Pedro Felzenszwalb).

Currently, my main research interest is: real-time stereo-based view synthesis for autostereoscopic rendering systems.

My advisor is Professor Gabriel Taubin (former IBM T. J. Watson Research Center employee), who is acknowledged worldwide by his contributions specially in the Geometric modeling field. Prof. Taubin is also Editor-in-Chief of IEEE Computer Graphics & Applications magazine.

Before Brown:

During my undergraduate period I worked part-time for a few years in an Image Processing Group (LABVIS, Brazil). I also was a computer programmer intern in an IT company (Atlanta Tecnologia de Informacao, Brazil), also part-time during five months. I did my eighth and ninth semesters in France, sponsored by a Brazilian Government scholarship (BRAFITEC) that I was awarded. During that period in Europe, I studied Electrical Engineering at INSA Lyon (National Institute of Applied Sciences of Lyon) in a concentration of Image and Signal Processing. After that, I was full-time engaged in the research headquarters of one of the main French companies (Renault), where I worked as an intern (BAC+5, senior year in the French system) dealing with signal processing in the Division of Acoustics.

After I earned my Bachelor of Engineering, I worked as temporary university teacher at Federal University of Ceara for a few months. During the same time, I offered consultancy to an IT research lab (GREAT, Brazil) and worked part-time in the local facilities of the Brazilian National Center of High Performance Computing. After that, by August 2009, I started working and studying at Brown University.

Kilho Son Ph.D. Student Room: Barus & Holley 317 Phone: (1)-401-497-4619 Email: kilho_son@brown.edu URL: http://www.lems.brown.edu/~sonkilho Curriculum Vitae: Download

Biography/Interests

Kilho Son is currently pursuing a PhD under Prof. David Cooper, researching on 3D puzzle, Recognition with 3D information, Pattern Classification and Graphical Models (Unknown Structure, Fully Supervised) in Engineering at Brown University. He received Bachelor degrees in Electronic Engineering from Sogang university in 2006 and completed his M.S. in Electrical Engineering at Korea Advanced Institute of Science and Technology(KAIST) in 2008. He has worked in Image Information Processing Group(IIPG) of Agency for Defense Development(ADD) as a researcher in South Korea(2008~2010).

Current Project

 http://vision.lems.brown.edu/project_desc/Fragment%20Assembly