David J. Crandall


Assistant Professor
School of Informatics and Computing
Indiana University

227 Informatics West, 901 E Tenth St
Bloomington, IN 47408
djcran@indiana.edu

Curriculum vitae

David Crandall photo

News
Jun 28, 2014: Best paper award at CVPR Workshop on Egocentric Vision
May 1, 2014: Papers appearing this summer: multimodal clustering at CVPR, first-person hand tracking at CVPR EgoVision, parent-child attention at CogSci, lifelogging privacy at UbiComp and UPSIDE
Feb 18, 2014: Google Research Award to study privacy in first-person cameras, with Apu Kapadia
Feb 8, 2014: Our EMBO paper on science funding featured in Science
Jan 30, 2014: Our PlaceAvoider paper featured in MIT Tech Review and elsewhere
Jan 1, 2014: PAMI paper on 3D reconstruction
Dec 9, 2013: Best paper award at ICCV Workshop on CV for Converging Perspectives
Oct 1, 2013: Air Force Office of Scientific Research contract to study cloud robotics, with G. Fox and K. Hauser
May 2, 2013: IU Collaborative Research Grant to use first-person cameras to study parent interactions with deaf children (with Houston, Smith, Pisoni, Bergeson-Dana, Yu)
Mar 25, 2013: Awarded NSF CAREER grant
Jan 1, 2013: Awarded IU Faculty Research Support Program (FRSP) grant for studying privacy in first-person cameras, with Apu Kapadia
Oct 3, 2013: Our PlaceRaider paper on opportunistic 3d reconstruction featured in New Scientist, The Atlantic, MIT Tech Review, among others
Sept 12, 2012: Awarded NSF EAGER grant with Chris Raphael, to study optical music recognition
May 5, 2012: Our WWW 2012 paper on using Flickr to study ecology featured in New Scientist
Sept 12, 2011: Awarded IU Faculty Research Support Program grant to use first-person cameras for studying austic and typically-developing children, with Chen Yu
June 22, 2011: Our paper on 3d reconstruction won runner-up best paper at CVPR 2011!
Dec 21, 2010: Our PNAS paper on inferring social ties from geo-tags featured in New Scientist and BBC World Service
Aug 24, 2010: Awarded grant from the IU D2I Center for mining social media for ecology
Aug 1, 2010: Joining the faculty of Indiana University School of Informatics and Computing!

Research
I work in computer vision, the area of computer science concerned with automatically inferring semantic meaning from images -- teaching computers to "see." More generally, I am interested in problems that involve analyzing and modeling large amounts of uncertain data, like mining data from social networking websites.

Since 2010 I've been an Assistant Professor in the School of Informatics and Computing at Indiana University, where I direct the IU Computer Vision Lab. I'm on the faculty of the Computer Science, Informatics, Cognitive Science, and Data Science programs, and I'm adjunct in the Department of Statistics. My work has been funded by grants and contracts from the National Science Foundation (including through a CAREER award), Google, Kodak, the Department of Defense, and Indiana University.

Before joining IU, I was a graduate student and postdoc in Computer Science at Cornell University. I worked with Professor Dan Huttenlocher on statistical part-based object recognition algorithms, and with Professor Jon Kleinberg on modeling and mining data from online social networks. I completed the Ph.D. degree in August 2008.

Before Cornell, I spent two years in the research labs of Eastman Kodak Company. There I worked mostly on image understanding and enhancement algorithms for both consumer and medical images.

As an undergraduate and Masters student at Penn State University, I worked with Professor Rangachar Kasturi on content-based video indexing, and specifically on detecting, tracking and recognizing text in video (both captions and text appearing naturally in a scene).


Publications
This is a partial list – please see my lab publications page or Google Scholar profile for more.

3-d reconstruction
  • "SfM with MRFs: Discrete-Continuous Optimization for Large-Scale Structure from Motion," in PAMI 2013 (with A. Owens, N. Snavely, D. Huttenlocher) [pdf] [project website]
  • "Discrete-Continuous Optimization for Large-Scale Structure from Motion," in CVPR 2011 (with A. Owens, N. Snavely, D. Huttenlocher) [pdf] [project website] Runner-up best paper!
First-person and opportunistic imagery
  • "PlaceAvoider: Steering First-Person Cameras away from Sensitive Spaces," in NDSS 2014 (with R. Templeman, M. Korayem, A. Kapadia) [pdf]
  • "This Hand is My Hand: A Probabilistic Approach to Hand Disambiguation in Egocentric Video," in CVPR Workshop on Egocentric Vision 2014 (with S. Lee, S. Bambach, J. Franchak, C. Yu) [pdf] Best paper!
  • "Privacy Behaviors of Lifeloggers using Wearable Cameras," in Ubicomp 2014 (with R. Hoyle, R. Templeman, S. Armes, D. Anthony, A. Kapadia) [pdf]
  • "PlaceRaider: Virtual Theft in Physical Spaces with Smartphones," in NDSS 2013 (with R. Templeman, Z. Rahman, A. Kapadia) [pdf] [project website]
Object recognition
  • "Vehicle Recognition with Constrained Multiple Instance SVMs," in WACV 2014 (with K. Duan, L. Marchesotti) [pdf]
  • "Discovering localized attributes for fine-grained recognition," in CVPR 2012 (with K. Duan, D. Parikh, K. Grauman) [pdf] [project website]
  • "A Multi-layer Composite Model for Human Pose Estimation," in BMVC 2012 (with K. Duan, D. Batra) [pdf] [project website]
  • "Landmark classification in large-scale image collections," in ICCV 2009 (with Y. Li and D. Huttenlocher) [pdf]
  • "Composite models of objects and scenes for category recognition," in CVPR 2007 (with D. Huttenlocher) [pdf]
  • "Weakly-supervised learning of part-based spatial models for visual object recognition," in ECCV 2006 (with D. Huttenlocher) [pdf] [source code]
  • "Spatial Priors for Part-Based Recognition using Statistical Models," in CVPR 2005 (with P. Felzenszwalb and D. Huttenlocher) [pdf] [expanded LNCS version] [source code]
  • "Robust Color Object Detection using Spatial-Color Joint Probability Functions," in IEEE Transactions on Image Processing, 2006 (with J. Luo) [CVPR 2004 version]
  • "Part-based statistical models for visual object class recognition," 2008 (Ph.D. thesis) [pdf]
Mining and modeling large-scale photo collections
  • "Multimodal Learning in Loosely-organized Web Images," in CVPR 2014 (with K. Duan, D. Batra) [pdf]
  • "Observing the natural world with Flickr," in ICCV Workshop on Computer Vision for Converging Perspectives, 2013 (with J. Wang, M. Korayem) [pdf] Best paper!
  • "Modeling people and places with internet photo collections," in Communications of the ACM (with N. Snavely)
  • "Mining photo-sharing websites to study ecological phenomena," in WWW 2012 (with H. Zhang, M. Korayem, G. LeBuhn) [pdf] [project website]
  • "Beyond co-occurrence: Discovering and visualizing tag relationships from geo-spatial and temporal similarities," in WSDM 2012 (with H. Zhang, M. Korayem, E. You) [pdf] [project website]
  • "Mapping the World's Photos," in WWW 2009 (with L. Backstrom, D. Huttenlocher, J. Kleinberg) [pdf] Runner-up best paper!
    See also a gallery of automatically-generated maps.
Mining and modeling online social networks
  • "De-anonymizing users across heterogeneous social computing platforms," in ICWSM 2013 (with M. Korayem) [pdf] [project website]
  • "Inferring Social Ties from Geographic Coincidences," in Proc. National Academy of Sciences (PNAS), 8 December 2010 (with L. Backstrom, D. Cosley, S. Suri, D. Huttenlocher, J. Kleinberg) [pdf]
  • "Feedback Effects between Similarity and Social Influence in Online Communities," in KDD 2008 (with D. Cosley, J. Kleinberg, D. Huttenlocher, S. Suri) [pdf]
Human vision
  • "Detecting Hands in Children's Egocentric Views to Understand Embodied Attention during Social Interaction," in CogSci 2014 (with S. Bambach, J. Franchak, C. Yu) [pdf]
  • "Understanding embodied visual attention in child-parent interaction," in ICDL 2013 (with S. Bambach, C. Yu) [pdf]
  • "Psychophysical study of image orientation perception," in Spatial Vision, 2003, pp. 429-457. (with J. Luo, A. Singhal, M. Boutell and R. Gray.)
Content-based video indexing
Other interests :)
  • "From funding agencies to scientific agency: Collective allocation of science funding as an alternative to peer review," in EMBO Reports, 2014 (with J. Bollen, D. Junk, Y. Ding, K. Borner) [pdf]
  • "Layer-finding in radar echograms using probabilistic graphical models", in ICPR 2012 (with G. Fox, J. Paden) [pdf]
  • "Learning visual features for the Avatar Captcha Recognition Challenge," in ICMLA 2012 (with M. Korayem, A. Mohammed, D. Crandall, R. Yampolskiy [pdf]
  • "Subjectivity and Sentiment Analysis of Arabic: A Survey", in AMLTA, 2012 (with M. Korayem, M. Abdul-Mageed) [pdf]

Teaching
Current:
  • CS B657, Computer Vision (Spring 2014)

Future (tentative):
  • Info I427, Search Informatics (Fall 2014)
  • CS 490, Introduction to Computer Vision (Spring 2015)

Past:

Other projects
These are other projects I've worked on that were never polished enough to be publishable, but that someone somewhere might still find interesting. :-)

Fun
I love cycling. During graduate school I would take multi-day bike trips spanning hundreds of miles, but the tenure track has made those trips less feasible. These days I stay closer to home, enjoying weekend rides along the beautiful country roads of southern Indiana. I used to ski during winter until I moved to the second flattest state east of the Mississippi; now my preferred winter activity is swimming in IU's fantastic pools.

I took piano for 12 years as a child and recently started picking it back up again. Since I can't produce great music myself, I'm happy to live just a few blocks from the amazing IU Jacobs School of Music.

I'm on a perpetual quest to become fluent in Spanish. In addition to taking classes in high school and throughout college and graduate school, I've studied abroad in Spain and Mexico, and I've also traveled to Puerto Rico and El Salvador. Despite all that effort, my Spanish is still remarkably lousy. :)

If you like pretty pictures, you might check out my dad's amazing bird photos.