List of Publications

 

 

Computer Vision and Machine Learning

 

.        S. Kumar, M. Mohri and A. Talwalkar

Ensemble Nystrom Method

Neural Information Processing Systems (NIPS), 2009.

[pdf]

 

.        S. Kumar, M. Mohri and A. Talwalkar

On Sampling-based Approximate Spectral Decomposition

International Conference on Machine Learning (ICML), 2009.

[pdf]

 

.        S. Kumar, M. Mohri and A. Talwalkar

Sampling Techniques for the Nystrom Method

Twelfth International Conference on Artificial Intelligence and Statistics (AISTATS), 2009.

[pdf]

 

.        A. Makadia, V. Pavlovic and S. Kumar

A New Baseline for Image Annotation

European Conference on Computer Vision (ECCV), 2008.

[pdf]

 

.        A. Talwalkar, S. Kumar and H. A. Rowley

Large-Scale Manifold Learning

IEEE Computer Vision and Pattern Recognition (CVPR), 2008.

[pdf]

 

.        M. Kim, S. Kumar, V. Pavlovic and H. A. Rowley

Face Tracking and Recognition with Visual Constraints in Real-World Videos

IEEE Computer Vision and Pattern Recognition (CVPR), 2008.

[pdf]

 

        S. Kumar and H. A. Rowley

Classification of Weakly-Labeled Data with Partial Equivalence Relations

IEEE International Conference on Computer Vision (ICCV), 2007.

[pdf]

Some additional results and parts of the video and retrieval datasets used in this work can be seen here.

 

        S. Kumar and M. Hebert

Discriminative Random Fields

International Journal of Computer Vision (IJCV), 68(2), 179-201, 2006.

[pdf]

 

        S. Kumar, J. August and M. Hebert

Exploiting Inference for Approximate Parameter Learning in Discriminative Fields: An Empirical Study
Energy Minimization Methods in Computer Vision and Pattern Recognition (EMMCVPR), 2005.

[pdf]

This paper is an extended and revised version of the earlier work presented in Snowbird Learning Workshop, 2004.

 

        S. Kumar

Models for Learning Spatial Interactions in Natural Images for Context-Based Classification

PhD Thesis, The Robotics Institute, School of Computer Science, Carnegie Mellon University, September 2005.

[pdf] [ps]

Revised October 2005.

 

        S. Kumar and M. Hebert

A Hierarchical Field Framework for Unified Context-Based Classification

IEEE International Conference on Computer Vision (ICCV), 2005.

[pdf] [ps]

Revised October 2005.

 

        C. Rother, S. Kumar, V. Kolmogorov and A. Blake

Digital Tapestry

IEEE International Conference on Computer Vision and Pattern Recognition (CVPR), June, 2005.

[pdf]

 

        S. Kumar and M. Hebert

Discriminative Random Fields

In review, International Journal of Computer Vision (IJCV), Submitted, 2004.

 

        S. Kumar and M. Hebert

Approximate Parameter Learning in Discriminative Fields

Snowbird Learning Workshop, Utah, 2004.

[pdf] [ps]

The synthetic dataset used for learning and inference experiments can be obtained from here.

 

        S. Kumar and M. Hebert

Multiclass Discriminative Fields for Parts-Based Object Detection

Snowbird Learning Workshop, Utah, 2004.

[pdf]

 

Discriminative Fields for Modeling Spatial Dependencies in Natural Images

Advances in Neural Information Processing Systems, NIPS 16, 2004.

[pdf] [ps]

The binary denoising synthetic dataset used for training and testing can be obtained from here.

        S. Kumar and M. Hebert

Discriminative Random Fields: A Discriminative Framework for Contextual Interaction in Classification

IEEE International Conference on Computer Vision (ICCV), 2003.

[pdf] [ps]

 

Man-Made Structure Detection in Natural Images using a Causal Multiscale Random Field

IEEE International Conference on Computer Vision and Pattern Recognition (CVPR), 2003.

[pdf]

Some more example results and comparisons.

The structure detection database used for training and testing can be obtained from here.

 

An Observation-Constrained Generative Approach for Probabilistic Classification of Image Regions

Image and Vision Computing, 21, pp. 87-97, 2003.

[pdf]

A shorter version of this paper appeared in the following workshop:

 

Probabilistic Classification of Image Regions using an Observation-Constrained Generative Approach

ECCV Workshop on Generative Models based Vision (GMBV), 2002.

[pdf]

 

 

Medical Imaging and Robotics

 

Path Planning with Hallucinated Worlds

In Proc. IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), October 2004.

[pdf]

 

Design of a Vision-guided Microrobotic Colonoscopy System

International Journal of Advanced Robotics, vol. 14, no. 2, pp. 87-104, 2000.

[link]

 

A Fully Automatic Microrobotic Endoscopy System

Journal of Intelligent and Robotic Systems, vol. 28, pp. 325-341, 2000.

[link]

 

A New Approach for Nonlinear Distortion Correction in Endoscopic Images Based on Least Squares Estimation

IEEE Transactions on Medical Imaging, vol. 18, no. 4, pp. 345-354,1999.

[link]

 

Real-Time Automatic Extraction of Lumen Region and Boundary from Endoscopic Images

IEE Journal of Medical & Biological Engineering & Computing, vol. 37, pp. 600-604, 1999.

[link]

 

Technique of Distortion Correction in Endoscopic Images using a Polynomial Expansion

IEE Journal of Medical & Biological Engineering & Computing, vol. 37, no. 1, pp. 8-12, 1999.

[link]

 

A Pipelined Architecture for Image Segmentation by Adaptive Progressive Thresholding

Journal of Microprocessors and Microsystems, vol. 23, no. 8-9, pp. 493-499, 1999.

[link]

 

Online Extraction of Lumen Region and Boundary from Endoscopic Images Using a Quad Structure

IEE Conference on Image Processing and its Applications (IPA), pp. 818-822, 1999.

 

A New Technique for the Segmentation of Lumen from Endoscopic Images by Differential Region Growing

42nd Midwest Symposium on Circuits and Systems, New Mexico, 1999.

 

Development of a Microrobotic System for Intelligent Endoscopy

2nd Scientific Meet. of Biomed. Eng. Soc., Singapore, January 1999.

 

A Computer-Based Endoscopic Image Segmentation Technique for Lumen Extraction

13th Int. Congress and Exhibition on Comp. Asst. Radio. Surgery, Paris, June, 1999.

 

Computer-Assisted Intelligent Endoscopy

13th Int. Congress and Exhibition on Comp. Asst. Radio. Surgery, Paris, June, 1999.

 

Design of a Self Guided Vehicle (SGV) with Laser Based Navigation System

National Seminar on Mechatronics, India, Madras, 1997.