Attribute-based People Search
(with Daniel Vaquero, Lisa Brown, Duan Tran, Arun Hampapur and Matthew Turk)
IEEE Workshop on Applications of Computer Vision(WACV'09).
See a VIDEO DEMO of our system.

I am currently a research scientist at IBM T.J. Watson Research Center, New York. I received a PhD in computer science from the University of California, Santa Barbara, an MS in computer science from University of Sao Paulo, Brazil, and a BS in computer engineering from the Federal University of Rio Grande, Brazil. My research interests include computer vision, graphics, computational photography, and machine learning. My publications have appeared in major computer vision/graphics conferences and journals, including ICCV, CVPR, SIGGRAPH, and PAMI. Throughout my graduate studies, I did research internships at Microsoft Research, Mitsubishi Electric Research Labs (MERL), and IBM Research. In 2002, my MS thesis on wavelet subspace tracking was awarded in a nationwide contest in Brazil. In 2005, I was named by IBM as “Emerging Leader in Multimedia”, an award given to eight students selected from top universities in US. I am a member of the ACM and IEEE and have served as a program committee member of major computer vision conferences such as CVPR, ICCV, and ECCV.
As an Adjunct Professor at Columbia University, I co-taught a course on Automatic Video Surveillance (Spring 2008). I am also an affiliate assistant professor at University of Washington (EE department), serving as a PhD co-advisor since July 2008. In addition to working on core research, I had a one-year assignment at IBM Global Technology Services as a senior software engineer to help the productization of the IBM Smart Surveillance System.
My interests span a wide range of topics in computer vision and graphics, with emphasis on visual surveillance, intelligent user interfaces, and digital photography applications. Specific projects include automated video analysis for surveillance, flash photography for image analysis and rendering, object classification, and face/gesture recognition".
(with Daniel Vaquero, Lisa Brown, Duan Tran, Arun Hampapur and Matthew Turk)
IEEE Workshop on Applications of Computer Vision(WACV'09).
See a VIDEO DEMO of our system.
(with Longbin Chen, Julian Mcauley, Tiberio Caetano and Matthew Turk)
IEEE Conference on Computer Vision and Pattern Recognition (CVPR'09).
(with Daniel Vaquero, Ramesh Raskar, and Matthew Turk)
IEEE Conference on Computer Vision and Pattern Recognition (CVPR'09).
(with Daniel Vaquero, Ramesh Raskar, and Matthew Turk)
IEEE Conference on Computer Vision and Pattern Recognition (CVPR'08).
Click here for more recent work related to multi-flash imaging.
(with the Exploratory Computer Vision Group at IBM)
I'm currently leading face analytics and object classification research for this project.
See a VIDEO DEMO of our system and our face capture method.
(with Longbin Chen, Matthew Turk, Ramesh Raskar, and Karhan Tan )
Accepted for publication at International Conference on Computer Vision (ICCV'05), oral presentation (3.7% acceptance).
(with Alex Olwal and Matthew Turk)
This project aims to combine computer vision and graphics for interactive and automatic human facial illustrations. We will demonstrate it in the Interactive FogScreen demo, SIGGRAPH Emerging Technologies, 2005.
(with Ramesh Raskar, Karhan Tan, Jingyi Yu and Matthew Turk)
Accepted for publication in ACM SIGGRAPH 2004 (see a VIDEO DEMO of our work)
Also accepted for Siggraph Emerging Technologies, 2004.
(with Matthew Turk, Ramesh Raskar, Karhan Tan and Gosuke Ohashi)
IEEE Workshop on Real-time Vision for Human-Computer Interaction (in conjunction with CVPR'04), Washington DC, USA, 2004. Extended version to appear as a book chapter, Springer-Verlag press.
(with Ramesh Raskar, Karhan Tan and Matthew Turk)
IEEE Brazilian Symposium on Computer Graphics and Image Processing (Sibgrapi'04), Curitiba, Brazil, 2004. Also accepted as a Siggraph poster, 2004. Extended version to appear in Journal of Brazilian Computer Society.
(with Karhan Tan, James Kobler, Paul Dietz and Ramesh Raskar)
International Conference on Medical Imaging Computing and Computer Assisted Intervention (Miccai'2004), France, 2004.
(with Changbo Hu, Ya Chang and Matthew Turk)
IEEE Workshop on Face Processing in Video (in conjunction with CVPR'04), Washington DC, USA, 2004. See our VIDEO demonstration. Extended version in Image and Vision Computing Journal.
(with Changbo Hu and Matthew Turk)
IEEE Workshop on Analysis and Modeling of Faces and Gestures (in conjunction with ICCV'03), Nice, France, 2003.
(with Changbo Hu and Matthew Turk)
British Machine Vision Conference (BMVC'03), Norwich, UK, 2003.
(with Jim Gemmell and Kentaro Toyama)
This is the project I worked at Microsoft Research (follow the link for publications)(with Longbin Chen, Julian Mcauley, Tiberio Caetano and Matthew Turk)
IEEE Conference on Computer Vision and Pattern Recognition (CVPR'09).
(with Jim Gemmell and Kentaro Toyama)
I extended Kentaro Toyama's tracker to achieve subpixel accuray (see VIDEO).
(with Changbo Hu and Matthew Turk)
We developed a fully automatic recognition system, with evaluation on Feret database.
(with Jim Gemmell, Kentaro Toyama and Volker Krueger)
International Conference on Automatic Face and Gesture Recognition (FG'02), Washington, DC, 2002.
(with Volker Krueger and Roberto Cesar)
IEEE Workshop on Recognition, Analysis, and Tracking of Faces and Gestures in Real-time Systems (in conjunction with ICCV'01), Vancouver, Canada, 2001. Also accepted for Real-Time Imaging Journal
This is part of my MS thesis work (which was awarded in a Brazilian nationwide competition) See our DEMO.
(with Roberto Cesar)
International Conference on Advances in Pattern Recognition (ICAPR'01), Rio de Janeiro, Brazil, 2001
See also the related PROJECT PAGE.
(with Teofilo Campos and Roberto Cesar)
Workshop on Artificial Intelligence and Computer Vision (WAICV'2000), Atibaia, Brazil, 2000.
(with Teofilo Campos and Roberto Cesar)
IEEE Brazilian Symposium on Computer Graphics and Image Processing (Sibgrapi'2000), Gramado, Brazil, 2000.
(with Teofilo Campos and Roberto Cesar)
Lecture Notes on Artificial Intelligence, vol. 1793, pp. 127-135. Proceedings of MICAI-2000, Acapulco, Mexico, 2000. Springer-Verlag press.
(with Teofilo Campos and Roberto Cesar)
Lecture Notes on Artificial Intelligence, vol. 1793, pp. 193-201. Proceedings of MICAI-2000, Acapulco, Mexico, 2000. Springer-Verlag press.