- September 09, 2014: I've joined Dropbox!
- I'm thrilled to announce that after 3 wonderful years at UW working with Steve Seitz, I've now joined the Photos team at Dropbox, along with my PhD advisor Peter Belhumeur, his current student Tom Berg, and David Kriegman from UCSD!
- July 11, 2014: Leafsnap Dataset released
- The leafsnap dataset has been released.
- May 09, 2014: Photo Recall paper accepted to Web-scale Vision and Social Media (VSM) workshop at CVPR 2014
- Our paper Photo Recall: Using the Internet to Label Your Photos has been accepted to the 2nd Workshop on Web-scale Vision and Social Media (VSM) which will be held this June in conjunction with CVPR 2014.
- July 25, 2013: LFPW dataset available again from my website
- The Labeled Face Parts in the Wild (LFPW) dataset is temporarily available from my webpage, as the KBVT site on which it was previously hosted has been undergoing renovations.
Curriculum VitaeCV (pdf)
Citations to my work
Talks (see all)CSE 590V: Computer vision seminar (Fall 2011)
Selected Projects (see all)
Searching through personal photos without any manual labeling
Automatically identifying plant species using photos of leaves taken in the field by mobile devices
Calibrating the outputs of multiple attribute classifiers into normalized multi-attribute spaces for fusion and similarity search
Robustly localizing face parts using local detectors and non-parametric, exemplar-based global models
Identifying faces using describable visual attributes of the face, automatically detected using attribute and simile classifiers
Searching face images using automatically-trained classifiers of descriptions of face and image attributes
Selected Software (see all)
C/C++/Python code to calibrate attribute classifier outputs using the w-score formulation, based on the Extreme Value Theory. For non-commercial uses only.
The Leafsnap homepage, with links to download the iPhone and iPad apps, as well as browse the list of species and their images.
30,866 leaf images of 185 species along with automatically-generated segmentations
1,432 Images with 29 points labeled on each image
60,000 face images with several face verification benchmarks & 65 automatically computed attribute labels for 42,000 images
15,000 face images with detailed pose and fiducial information & 5,000 manual attribute labels
Selected Publications (see all)
"Photo Recall: Using the Internet to Label Your Photos,"2nd Workshop on Web-scale Vision and Social Media (VSM) at CVPR 2014,June 2014.
"Photo Recall: Using the Internet to Label Your Photos," (extended abstract)Proceedings of the 23rd International Conference on World Wide Web companion,April 2014.
"Localizing Parts of Faces Using a Consensus of Exemplars,"IEEE Transactions on Pattern Analysis and Machine Intelligence (PAMI),vol. 35, no. 12, pp. 2930--2940, December 2013.
"How reliable are your visual attributes?,"Proceedings of SPIE Volume 8712: Defense, Security, and Sensing,April 2013.
"Leafsnap: A Computer Vision System for Automatic Plant Species Identification," (oral presentation)Proceedings of the 12th European Conference on Computer Vision (ECCV),October 2012.
"Multi-Attribute Spaces: Calibration for Attribute Fusion and Similarity Search,"Proceedings of the 25th IEEE Conference on Computer Vision and Pattern Recognition (CVPR),June 2012.
"Fusing with Context: a Bayesian Approach to Combining Descriptive Attributes," (oral presentation)Proceedings of the IEEE International Joint Conference on Biometrics (IJCB),October 2011.
"Two faces are better than one: Face recognition in group photographs,"Proceedings of the IEEE International Joint Conference on Biometrics (IJCB),October 2011.
"Describable Visual Attributes for Face Verification and Image Search,"IEEE Transactions on Pattern Analysis and Machine Intelligence (PAMI),vol. 33, no. 10, pp. 1962--1977, October 2011.
"Describable Visual Attributes for Face Images," (PhD Thesis)Technical Report CUCS-035-11, Department of Computer Science, Columbia University,August 2011.
"Localizing Parts of Faces Using a Consensus of Exemplars,"Proceedings of the 24th IEEE Conference on Computer Vision and Pattern Recognition (CVPR),June 2011.
"Attribute and Simile Classifiers for Face Verification," (oral presentation)Proceedings of the 12th IEEE International Conference on Computer Vision (ICCV),October 2009.
"FaceTracer: A Search Engine for Large Collections of Images with Faces,"Proceedings of the 10th European Conference on Computer Vision (ECCV),pp. 340--353, October 2008.
"What is a Good Nearest Neighbors Algorithm for Finding Similar Patches in Images?,"Proceedings of the 10th European Conference on Computer Vision (ECCV),pp. 364--378, October 2008.
"Face Swapping: Automatically Replacing Faces in Photographs," (oral presentation)ACM Transactions on Graphics (Proceedings of SIGGRAPH),vol. 27, no. 3, August 2008.