Larry S. Davis

Larry S. Davis is a Professor in the Institute for Advanced Computer Studies and the Department of Computer Science. He is affiliated with the Computer Vision Laboratory of the Center for Automation Research, for which he served as the head from 1981-1986. He has been the Chair of the Department of Computer Science since 1999.

NOTE TO PROSPECTIVE GRADUATE STUDENTS: Every Fall I receive numerous emails from prospective graduate students asking about the possibility of doing graduate work at Maryland with me in computer vision. I cannot answer all of these messages, so I am posting a generic reply here:

I work with students in both Computer Science and Electrical and Computer Engineering. Admission into either of these programs is extremely competitive, with more than 1000 applications to each program every year. You must be accepted by one of these programs to join our group.
I generally bring 2-3 new students into the group each year, although typically they are not first year graduate students (whose time is consumed by courses and projects). In computer science, essentially all students accepted into the program are given financial aid.
If you have an exceptionally strong background in computer vision (one or two publications in leading vision conferences or journals), then you might be offered a research assistantship immediately.

COURSE MATERIALS

Data structures . This page contains the syllabus for CMSC 420, a senior level course on data structures, project descriptions and pointers to pdf files that contain the viewgraphs used for the course.
Computer Vision . This is a senior level introductory course on computer vision. This page contains the course syllabus, presentation materials and project descriptions.

RESEARCH STAFF

Research Scientists

Current Ph. D. Students

Alumni

Motilal Agarwal (SRI)
Eugene Borovikov (Computer Sciences Corporation)
Ross Cutler (Microsoft Research)
Hazem El-Alfy (University of Alexandria)
Ahmed Elgammal (Computer Science Department, Rutgers)
Dariu Gavrila (Daimler Benz)
Nagia Ghanem (University of Alexandria, Egypt)
Abhinav Gupta (CMU)
Bohyung Han (Postech)
Ismail Haritaoglu (Polar Rain)
Mohamed Hussein (MERL)
Thanarat Horprasert (Chulalongkorn)
Aniruddha Khembavi (Microsoft Research)
Kyungnam Kim (HRL)
Zhe Lin (Adobe)
Sernam Lim (GE Global Research)
Anurag Mittal (IIT Chennai)
Vlad Morariu (UMD)
Vitaladevuni Shiv Naga Prasad (BBN)
Harsh Nanda (Goldman Sachs)
P. J. Narayanan (IIIT Hyderabad)
Vasanth Philomin (Phillips Research)
William Schwartz (Searching!)
Vinay Shet (Siemens Corporate Research)
Son Dinh Tran (Videosurf)
Changjiang Yang (SET Corporation)

(MOSTLY RECENT) PAPERS

Background subtraction

Ser-Nam Lim, Anurag Mittal, Larry S. Davis and Nikos Paragios., Fast Illumination-invariant Background Subtraction Using Two Views: Error Analysis, Sensor Placement and Applications. In IEEE Conference on Computer Vision and Pattern Recognition (CVPR), San Diego, CA, June 2005
K. Kim, T. H. Chalidabhongse, D. Harwood and L. Davis, Real-time Foreground-Background Segmentation using Codebook Model, Real-time Imaging, Volume 11, Issue 3, Pages 167-256, June 2005 [PDF]
K. Kim, T. H. Chalidabhongse, D. Harwood and L. Davis, Background Modeling and Subtraction by Codebook Construction, IEEE International Conference on Image Processing (ICIP) 2004. [PDF]
T. H. Chalidabhongse, K. Kim, D. Harwood and L. Davis, A Perturbation Method for Evaluating Background Subtraction Algorithms, Joint IEEE International Workshop on Visual Surveillance and Performance Evaluation of Tracking and Surveillance (VS-PETS 2003), Nice, France, Oct. 11-12, 2003. [PDF]
A. Elgammal, R. Duraiswami, D. Harwood and L. S. Davis, Background and Foreground Modeling using Non-parametric Kernel Density Estimation for Visual Surveillance, Proceedings of the IEEE, July 2002. [PDF]
A. Elgammal, D. Harwood, L. S. Davis, Non-parametric Model for Background Subtraction, ECCV'00 [PDF]

Human detection, face recognition and appearance matching

W.R. Schwartz, H. Guo, L.S. Davis. A Robust and Scalable Approach to Face Identification. Accepted to be presented at the European Conference on Computer Vision (ECCV'2010), Crete, Greece, September 05-11, 2010. [PDF]
W.R. Schwartz, A. Kembhavi, D. Harwood, L.S. Davis. Human Detection Using Partial Least Squares Analysis. International Conference on Computer Vision (ICCV'2009), Kyoto, Japan, September 27 - October 4, 2009 [PDF]
Mohamed Hussein, Fatih Porikli,and Larry Davis, A Comprehensive Evaluation Framework And a Comparative Study For Human Detectors, IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS, VOL. 10, NO. 3, SEP 2009 [PDF]
W.R. Schwartz, L.S. Davis. Learning Discriminative Appearance-Based Models Using Partial Least Squares. Accepted to be presented in the XXII Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI'2009), Rio de Janeiro, Brazil, October 11-14, 2009 [PDF]
W.R. Schwartz, R. Gopalan, R. Chellappa, L.S. Davis. Robust Human Detection under Occlusion by Integrating Face and Person Detectors. Lecture Notes in Computer Science, vol. 5558, pp. 970-979, Springer-Verlag. Third International Conference on Biometrics (ICB'2009), Alghero, Italy, June 2-5, 2009. [PDF]
Zhe Lin and Larry S. Davis, A Pose-Invariant Descriptor for Human Detection and Segmentation, 10th European Conference on Computer Vision (ECCV 2008), Marseille, France, 2008. [PDF]
Zhe Lin and Larry S. Davis, Learning Pairwise Dissimilarity Profiles for Appearance Recognition in Visual Surveillance, 4th International Symposium on Visual Computing (ISVC 2008), Las Vegas, Nevada, 2008, (Best Paper Award). [PDF]
Wael Abd-Almageed and Larry Davis, Human Detection using Iterative Feature Selection and Logistic Principal Component Analysis, International Conference Robotics and Automation, 2008 [PDF]
W. Abd-Almageed, M. Hussein, M. Abdelkader and L. Davis, Real-Time Human Detection and Tracking from Mobile Vehicles, International Conference on Intelligent Transportation Systems, 2007 [PDF]
W. Abd-Almageed and L. Davis, Robust Appearance Modeling for Pedestrain and Vehicle Tracking, Springer's Lecture Notes in Computer Science, 2007 (4122). [PDF]
Zhe Lin, Larry S. Davis, David Doermann, Daniel DeMenthon, Hierarchical Part-Template Matching for Human Detection and Segmentation, IEEE International Conference on Computer Vision (ICCV 2007), Rio de Janeiro, Brazil, 2007. [PDF]
Zhe Lin, Larry S. Davis, David Doermann, Daniel DeMenthon, An Interactive Approach to Pose-Assisted and Appearance-based Segmentation of Humans, ICCV Workshop on Interactive Computer Vision (ICV 2007), Rio de Janeiro, Brazil, 2007. [PDF]
Zhe Lin, Larry S. Davis, David Doermann, Daniel DeMenthon, Simultaneous Appearance Modeling and Segmentation for Matching People under Occlusion, Asian Conference on Computer Vision (ACCV 2007), Tokyo, Japan, 2007. [PDF]
V. S. N. Prasad, L. S. Davis, S. D. Tran and A. Elgammal, Edge Affinities for Pose-Contour Matching. J. Computer Vision and Image Understanding (CVIU), 104(1): 36-47, Oct. 2006 [PDF]
Y. Yacoob and L. Davis, Detection and Analysis of Hair, IEEE PAMI, (28)7,2006, 1164-1169. [PDF]
Mohamed Hussein, Wael Abd-Almageed, Yang Ran and Larry Davis, A Real-Time System for Human Detection, Tracking and Verification from a Moving Camera, IEEE International Conference on Computer Vision Systems, 2006. [PDF]
Vinay D. Shet, Jan Neumann, Visvanathan Ramesh and Larry S. Davis, Bilattice based Logical Reasoning for Human Detection, IEEE Computer Vision and Pattern Recognition (CVPR), 2007, Minneapolis, MN, USA [PDF]
Yang Ran, Qinfen Zheng, Isaac Weiss and Larry Davis Wael Abd Almageed, Pedestrian Classification from Moving Platforms using Cyclic Motion Patterns, IEEE International Conference on Image Processing, 2005. [PDF]
Y. Yacoob and L. Davis, Smiling Faces are Better for Face Recognition. in International Conference on Face Recognition and Gesture Analysis, Washington-DC, 2002, 59-64 [PDF]
I.Haritaoglu, D.Harwood, and L.Davis, Ghost: A Human Body Part Labeling System Using Silhouettes, Fourteenth International Conference on Pattern Recognition, Brisbane, August 1998. [PDF]
I.Haritaoglu, D.Harwood, and L.Davis.W4S: A Real Time System for Detecting and Tracking People in 2.5 D, Fifth European Conference on Computer Vision, Freiburg, June 1998 [PDF]

Tracking

Aniruddha Kembhavi, William Robson Schwartz, and Larry S. Davis , Resource Allocation for Tracking Multiple Targets using Particle Filters, Eighth International Workshop on Visual Surveillance (VS2008) - Workshop at ECCV 2008 [PDF]
Son Tran, Zhe Lin, David Harwood, Larry Davis, UMD_VDT, an Integration of Detection and Tracking Methods for Multiple Human Tracking, Classification of Events, Activities and Relationships Workshop (CLEAR 2007) [PDF]
Aniruddha Kembhavi, Ryan Farrell, Yuancheng Luo, David Jacobs, Ramani Duraiswami, Larry Davis, Tracking Down Under: Following the Satin Bowerbird, WACV 2008. [PDF]
Son Tran and Larry Davis. Robust Object Tracking with Regional Affine Invariant Features, IEEE International Conference on Computer Vision (ICCV07),Rio di Janeiro, Brazil, 2007. [PDF]
Son Tran and Larry Davis, Object Tracking at Multiple Levels of Spatial Resolutions. ICIAP'07. 2007. Best Paper Prize. [PDF]
Kyungnam Kim and Larry S. Davis, Multi-Camera Tracking and Segmentation of Occluded People on Ground Plane using Search-Guided Particle Filtering, European Conference on Computer Vision (ECCV), LNCS, 2006. [PDF]
Bohyung Han, Seong-Wook Joo and Larry Davis, Probabilistic Fusion Tracking Using Mixture Kernel-Based Bayesian Filtering, International Conference on Computer Vision (ICCV), Rio de Janeiro, Brazil, 2007 [PDF]
Bohyung Han, Dorin Comaniciu, Ying Zhu and Larry Davis, Sequential Kernel Density Approximation and Its Applications to Visual Tracking, IEEE Transactions on Pattern Analysis and Machine Intelligence (Regular paper), in press [PDF]
Bohyung Han and Larry Davis, On-Line Density-Based Appearance Modeling for Object Tracking, International Conference on Computer vision (ICCV), Beijing, China, 2005 [PDF]
Bohyung Han and Larry Davis, Robust Observations for Object Tracking, International Conference on Image Processing (ICIP), Genova, Italy, 2005 [PDF]
Bohyung Han, Ying Zhu, Dorin Comanicu and Larry Davis, Kernel-Based Bayesian Filtering for Object Tracking, International Conference on Computer Vision and Pattern Recognition (CVPR), San Diego, USA, 2005 [PDF]
Bohyung Han, and Larry Davis, Object Tracking by Adaptive Feature Extraction , International Conference on Image Processing (ICIP), Singapore, 2004 [PDF]
Bohyung Han, Dorin Comaniciu, Ying Zhu, and Larry Davis, Incremental Density Approximation and Kernel-Based Bayesian Filtering for Object Tracking, International Conference on Computer Vision and Pattern Recognition (CVPR), Washington DC, USA, 2004 [PDF]
Bohyung Han, Dorin Comaniciu, and Larry Davis, Sequential Kernel Density Approximation through Mode Propagation: Applications to Background Modeling, Asian Conference on Computer Vision (ACCV), Jeju Island, Korea, 2004 [PDF]
Anurag Mittal and Larry S. Davis, M2Tracker: A Multi-View Approach to Segmenting and Tracking People in a Cluttered Scene. International Journal of Computer Vision (IJCV). Vol. 51 (3), Feb/March 2003. [PDF]
A. Elgammal, R. Duraiswami, and L. S. Davis, Probabilistic Tracking in Joint Feature-Spatial Spaces CVPR'03 [PDF]
A. Elgammal and L. S. Davis, Probabilistic Framework for Segmenting People Under Occlusion, ICCV'01 [PDF]
Y. Yacoob and L.S. Davis, Learned Models for Estimation of Rigid and Articulated Human Motion from Stationary or Moving Camera, Int. Journal of Computer Vision, 36(1), 2000, 5-30. [PDF]

Camera networks

Hazem El-Alfy, David Jacobs and Larry Davis, Multi-Scale Video Cropping, in Proceedings of the 15th ACM International Conference on Multimedia (MM'07), pp. 97-106, Augsburg, Bavaria, Germany, September 23-28, 2007. [PDF]
Ryan Farrell, David Doermann, Larry Davis, Learning Higher-order Transition Models in Medium-scale Camera Networks, OMNIVIS 2007. [PDF]
Abhinav Gupta, Anurag Mittal and Larry S. Davis, COST*: An Approach for Camera Selection and Multi-Object Inference Ordering in Dynamic Scenes, In ICCV 2007 [PDF]
Anurag Mittal and Larry S. Davis. Visibility Analysis and Sensor Planning in Dynamic Environments. In 8th European Conference on Computer Vision (ECCV), Prague, Czech Republic, May, 2004. [PDF]
Ser-Nam Lim, Larry Davis, Anurag Mittal, Task Scheduling in Large Camera Network, ACCV 2007, Tokyo, Japan. [PDF]
Ser-Nam Lim, Larry S. Davis, Anurag Mittal, Constructing Task Visibility Intervals for a Surveillance System, ACM Multimedia System Journal, Special Issue on Multimedia Surveillance System, Vol. 12, No. 3, Dec 2006. [PDF]
Ser-Nam Lim, Anurag Mittal, Larry Davis, Constructing Task Visibility Intervals for Surveillance Systems, VSSN 2005, Nov 11-12, Singapore. [PDF]
Ser-Nam Lim, Ahmed Elgammal and Larry S. Davis, Image-based Pan-tilt Camera Control in a Multi-Camera Surveillance Environment, IEEE ICME 2003, Special Session on Visual Surveillance, Jul 6-9, Baltimore, Maryland. [PDF]

Human movement modeling

S. N. Vitaladevuni, V. Kellokumpu and L. S. Davis, Action Recognition using Ballistic Dynamics, Conf. on Computer Vision and Pattern Rec. (CVPR) 2008 [PDF]
Vlad I. Morariu, V. Shiv Naga Prasad, and Larry S. Davis. Human Activity Understanding using Visibility Context. IEEE/RSJ IROS Workshop: From sensors to human spatial concepts (FS2HSC), 2007. [PDF]
V. S. N. Prasad, V. Kellokumpu and L. S. Davis, Ballistic Hand Movements, Proc. Conf. Articulated Motion and Deformable Objects (AMDO) 2006, July 2006. [PDF]
V. D. Shet, V. S. N. Prasad, A. Elgammal, Y. Yacoob and L. S. Davis, Multi-cue Exemplar-based Nonparametric Model for Gesture Recognition, in Proc. Indian Conf. Computer Vision, Graphics and Image Processing (ICVGIP) 2004, Dec. 2004. [PDF]
Ahmed Elgammal, Vinay D. Shet, Yaser Yacoob and Larry Davis, Learning Dynamics for Exemplar based Gesture Recognition, IEEE International Conference on Computer Vision and Pattern Recognition (CVPR) Wisconsin 2003 [PDF]
A. Sepheri, Y. Yacoob and L. Davis, Employing the Hand as an Interface Device, Journal of Multimedia, (1)7, 2006, 18-29 [PDF]

3D Human Motion Capture

Abhinav Gupta, Trista Chen, Francine Chen, Don Kimber and Larry S. Davis, Context and Observation Driven Latent Variable Model for Human Pose Estimation, in CVPR 2008 [PDF]
Abhinav Gupta, Anurag Mittal and Larry S. Davis, Constraint Integration for Multiview Pose Estimation of Humans with Self-Occlusions, 3DPVT 2006 [PDF]
Anurag Mittal, Liang Zhao and Larry Davis., Human Body pose Estimation by Shape Analysis of Silhouettes. IEEE International Conference on Advanced Video and Signal Based Surveillance (AVSS), Orlando, Florida, July 2003. [PDF]
T. Horparasert, I. Haritaoglu, D. Harwood, L. Davis, C. Wren, A. Pentland Real-time 3D Motion Capture. Second Workshop on Perceptual Interfaces, San Francisco, November 1998 [PDF]
K. Ebihara, L.S. Davis, J. Kurumisawa, T. Horprasert, R.I. Haritaoglu, T. Sakaguchi and J. Ohya, Shall We Dance? -Real Time 3D Control of a CG Puppet, SIGGRAPH98 Conference Abstract and Applications, Orlando, July 1998. [PDF]
D. M. Gavrila and L. S. Davis, 3D Model-based Tracking of Humans in Action: a Multi-view Approach, Proc. of IEEE Conference on Computer Vision and Pattern Recognition, pp. 73-80, San Francisco, U.S.A., 1996.

Object/Action Recognition/Scene Analysis

Behjat Siddiquie, Rogerio S. Feris and Larry S. Davis, mage Ranking and Retrieval based on Multi-Attribute Queries. IEEE Conference on Computer Vision and Pattern Recognition, (CVPR) 2011. [PDF]
Zhuolin Jiang, Zhe Lin and Larry Davis, Learning a discriminative dictionary for sparse coding using lable consistent K-SVD, to appear in CVPR 2011 [PDF]
Xi Chen, Arpit Jain*, Abhinav Gupta, Larry Davis. Piecing Together the Segmentation Jigsaw using Context . IEEE International Conference on Computer Vision and Pattern Recognition (CVPR) 2011. [PDF]
Zhuolin Jiang, Zhe Lin, Larry S. Davis, A Tree-based Approach to Integrated Action Localization, Recognition and Segmentation. Third Workshop on Human Motion (In Conjunction with ECCV), 2010 [PDF]
Arpit Jain, Abhinav Gupta and Larry S. Davis, Learning What and How of Contextual Models for Scene Labeling, to appear in ECCV 2010 [PDF]
Behjat Siddiquie, Shiv N. Vitaladevuni and Larry S. Davis , Combining Multiple Kernels for Efficient Image Classification IEEE Workshop on Applications of Computer Vision, (WACV) 2009. [PDF]
Mohamed Hussein, Fatih Porikli, and Larry Davis, Object Detection via Boosted Deformable Features, IEEE International Conference on Image Processing, Cairo, Egypt, November 2009. [PDF]
Zhe Lin, Zhuolin Jiang, and Larry S. Davis, Recognizing Actions by Shape-Motion Prototype Trees, IEEE International Conference on Computer Vision (ICCV 2009), Kyoto, Japan [PDF]
Aniruddha Kembhavi, Behjat Siddiquie, Roland Miezianko, Scott McCloskey, Larry S. Davis, Scene it or not? Incremental Multiple Kernel Learning for Object Detection, International Conference on Computer Vision - ICCV 2009 [PDF]
Zhe Lin, Gang Hua, and Larry S. Davis, Multiple Instance Feature for Robust Part-based Object Detection, IEEE Conference on Computer Vision and Pattern Recognition (CVPR 2009), Miami, Florida, 2009 [PDF]
Abhinav Gupta, Aniruddha Kembhavi and Larry S. Davis, Observing Human-Object Interactions: Using Spatial and Functional Compatibility for Recognition. IEEE Transactions on Pattern Analysis and Machine Intelligence (Special Issue on Probabilistic Graphical Models), October 2009, 1775-1789. [PDF]
Abhinav Gupta and Larry S. Davis, Beyond nouns: Exploiting prepositions and comparative adjectives for learning visual classifiers, ECCV 2008 [PDF]
Abhinav Gupta, Jianbo Shi and Larry S. Davis, A Shape Aware Model for semi-supervised Learning of Objects and its Context, NIPS 2008 [PDF]
Abhinav Gupta and Larry S. Davis, Objects in Action: An Approach for Combining Action Understanding and Object Perception, CVPR 2007 [PDF]

Event modeling and recognition

Vlad I. Morariu and Larry S. Davis. Multi-agent event recognition in structured scenarios. IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2011 [PDF]
Aniruddha Kembhavi, Tom Yeh, and Larry Davis, Why Did the Person Cross the Road (There)? Scene Understanding using Probabilistic Logic Models and Common Sense Reasoning. ECCV 2010. [PDF]
Abhinav Gupta, Praveen Srinivasan, Jianbo Shi and Larry S. Davis, Understanding Videos, Constructing Plots: Learning a Visually Grounded Storyline Model from Annotated Videos, In CVPR 2009. [PDF]
Son Tran and Larry Davis, Visual Event Modeling and Recognition using Markov Logic Networks ECCV08. 2008. [PDF]
Vinay D. Shet, David Harwood and Larry S. Davis, Multivalued Default Logic for Identity Maintenance in Visual Surveillance, 9th European Conference on Computer Vision (ECCV), 2006, Graz, Austria [PDF]
Vinay D. Shet, David Harwood and Larry S. Davis, Top-Down, Bottom-up Multivalued Default Reasoning for Identity Maintenance, 4th ACM International Workshop on Video Surveillance & Sensor Networks (VSSN) in conjunction with ACM Multimedia Santa Barbara, CA, USA, 2006 [PDF]
Vinay D. Shet, David Harwood and Larry S. Davis, VidMAP: Video Monitoring of Activity with Prolog, IEEE International Conference on Advanced Video and Signal based Surveillance (AVSS), Como, Italy, September 2005 [PDF]
Nagia Ghanem, Daniel DeMenthon, David Doermann and Larry Davis, Representation and Recognition of Events in Surveillance Video Using Petri Nets.. Second IEEE Workshop on Event Mining 2004, CVPR2004 [PDF]

High Performance Computing and Fast Algorithms for Vision

Brandyn White, Tom Yeh, Jimmy Lin, and Larry Davis, Web-Scale Computer Vision using MapReduce for Multimedia Data Mining, KDD Workshop, July 2010. [PDF]
Mohamed Hussein, Fatih Porikli, and Larry Davis, Kernel Integral Images: A Framework for Fast Non-Uniform Filtering, EEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR), Anchorage, AK, June 2008. [PDF]
Vlad I. Morariu, Balaji Vasan Srinivasan, Vikas C. Raykar, Ramani Duraiswami, and Larry S. Davis. Automatic online tuning for fast Gaussian summation. Advances in Neural Information Processing Systems (NIPS), 2008. [PDF]

Miscellaneous

V. S. N. Prasad, B. Siddiquie, J. Golbeck and L. S. Davis, Classifying Computer Generated Charts, Workshop on Content Based Multimedia Indexing (CBMI) 2007. [PDF]
Y. Yacoob and L. Davis, Segmentation using Meta-texture Saliency , International Conference on Computer Vision, Rio De Janeiro, Brazil, 2007. [PDF]
V. S. N. Prasad and L. S. Davis, Detecting Rotational Symmetries, (Oral Pres.) Proc. IEEE Int'l Conf. Computer Vision (ICCV) 2005, Oct. 2005. [PDF]
Bohyung Han and Larry Davis, Semi-Parametric Model-Based Clustering for DNA Microarray Data, International Conference on Pattern Recognition (ICPR), Hong Kong, China, 2006
Wael Abd-Almageed and Larry Davis, Density Estimation using Mixtures of Mixtures of Gaussians, European Conference on Computer Vision , 2006. [PDF]
Y. Yacoob and L.S. Davis, Segmentation of Planar Objects and their Shadows in Motion Sequences, Int. Journal of Computer Vision, (67)1, April 2006, 53 - 69.