contact
1947 Center Street
Suite 600
Berkeley, CA 94704
510.666.2975
curriculum vitae
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about me
I have recently joined Professor Trevor Darrell's research group at UC Berkeley as a postdoctoral fellow. I previously completed my doctoral studies at the University of Maryland in 2011 under the guidance of Professor Larry Davis.
research interests
My current work aims to improve models for Fine-grained Visual Categorization. This exciting domain encompasses the categorization of closely-related objects, for example, differentiating subordinate categories such as individual bird species rather than predicting basic-level categories such as frogs vs. piano. For details, see the FGVC workshop that I recently co-organized or our recently accepted ICCV paper. I am also currently working on activity analysis, both image feature-based techniques in video and trajectory-based approaches in wide-area motion imagery.
In addition to work on subordinate categorization, my dissertation research included work on understanding and semantically labeling activities in sports videos such as the inference/prediction of player and team interactions using temporal analysis of spatial features. I also had worked previously on sensor network localization problems and on learning the topology and transition models for non-overlapping camera networks.
publications
Birdlets: Subordinate Categorization Using Volumetric Primitives and Pose-Normalized Appearance.
Ryan Farrell, Om Oza, Ning Zhang, Vlad I. Morariu, Trevor Darrell, Larry S. Davis.
International Conference on Computer Vision (ICCV) 2011, accepted [PDF]. (ORAL)
Target Localization in Camera Wireless Networks.
Ryan Farrell, Roberto Garcia, Dennis Lucarelli, Andreas Terzis, I-Jeng Wang.
Pervasive and Mobile Computing, April 2009.
Decentralized Discovery of Camera Network Topology.
Ryan Farrell and Larry S. Davis.
ICDSC 2008.
Distributed Inference for Network Localization using Radio Interferometric Ranging.
Dennis Lucarelli, Anshu Saksena, Ryan Farrell, I-Jeng Wang.
EWSN 2008.
Tracking Down Under: Following the Satin Bowerbird.
Aniruddha Kembhavi*, Ryan Farrell*, Yuancheng Luo, David Jacobs, Ramani Duraiswami, Larry S. Davis.
WACV 2008.
Localization in Multi-Modal Sensor Networks.
Ryan Farrell, Roberto Garcia, Dennis Lucarelli, Andreas Terzis, I-Jeng Wang.
ISSNIP 2007. Best Paper Award (out of 128 papers).
Learning Higher-order Transition Models in Medium-scale Camera Networks.
Ryan Farrell, David Doermann, Larry S. Davis.
OMNIVIS 2007, in conjunction with ICCV 2007.
The Designers Outpost: A Tangible Interface for Collaborative Web Site Design.
Scott R. Klemmer, Mark W. Newman, Ryan Farrell, Mark Bilezikjian, James A. Landay.
UIST 2001.
service
Co-Chair for the First Workshop on Fine-Grained Visual Categorization (FGVC), at CVPR 2011.
Program Committee Member for CVPR 2010 / 2011, ECCV 2010 and ICCV 2011.
Website Co-Chair for CVPR 2010 and CVPR 2012.
personal
The most important things in my life are my family and my faith.  I consider myself fortunate to be married to my best friend and sweetheart and to be a devoted father to three wonderful children.  I spend most of my free time with them and with friends.  When occasion permits (and it rarely does these days), I pursue my favorite hobby, birding.