Ramani Duraiswami

Professor
3361 A.V. Williams Building
(301) 405-6710
Education: 
Ph.D., Johns Hopkins University (Mechanical Engineering)
Biography: 

Ramani Duraiswami is a professor in the Department of Computer Science.

He is the director of the Perceptual Interfaces and Reality Laboratory and has broad research interests in a number of areas, including scientific computing, spatial audio, and machine learning and computer vision.

Duraiswami's work in computer audition is inspired by the way humans effortlessly use spatial sound for making sense of the environment. The focus is on understanding the physical mechanisms, and providing machines with the same capabilities, and the use of computing, mathematical physics and experiments have characterized this work. In scientific computing, the focus is on solving very large problems using approximation algorithms and parallel computing. This work has been driven by applications in audio, speaker ID, computer vision, physics, and machine learning. A particular focus here has been in developing and improving algorithms based on the fast-multipole method, and in the use of heterogeneous multicore architectures to achieve orders of magnitude speed-ups.

Duraiswami received his doctorate in mechanical engineering from Johns Hopkins University in 1991.

Publications

2006


Gumerov NA, Duraiswami R.  2006.  FMM accelerated BEM for 3D Laplace & Helmholtz equations. Proceedings Int. Conf. on Boundary Element Techniques.

Gumerov NA, Zandifar A, Duraiswami R, Davis LS.  2006.  3D structure recovery and unwarping of surfaces applicable to planes. International journal of computer vision. 66(3):261-281.

Li Z, Duraiswami R.  2006.  Headphone-Based Reproduction of 3D Auditory Scenes Captured by Spherical/Hemispherical Microphone Arrays. Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on. 5:V-V.

Zotkin DN, Duraiswami R, Grassi E, Gumerov NA.  2006.  Fast head-related transfer function measurement via reciprocity. The Journal of the Acoustical Society of America. 120(4):2202-2215.

Zhang Z, Mayergoyz ID, Gumerov NA, Duraiswami R.  2006.  Numerical Analysis of Plasmon Resonances Based on Fast Multipole Method. Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on.
:459-459.

Yerukhimovich A, Duraiswami R, Gumerov NA, Zotkin DN.  2006.  Frequency Independent Flexible Spherical Beamforming Via Rbf Fitting. 2006 IEEE International Conference on Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 5:V-V-V-V.

Raykar VC, Duraiswami R.  2006.  Fast optimal bandwidth selection for kernel density estimation. Proceedings of the sixth SIAM International Conference on Data Mining.
:524-528.

Duraiswami R, Zotkin DN, O'donovan A.  2006.  Capture and rendering of spatial sound over headphones. The Journal of the Acoustical Society of America. 120(5):3094-3094.

Duraiswami R, Li Z, Zotkin DN, Grassi E.  2006.  Spherical and hemispherical microphone arrays for capture and analysis of sound fields. The Journal of the Acoustical Society of America. 120(5):3225-3225.

2005


Raykar V C, Yang C, Duraiswami R, Gumerov NA.  2005.  Fast Computation of Sums of Gaussians in High Dimensions. Technical Reports from UMIACS UMIACS-TR-2005-69.

Raykar VC, Yegnanarayana B, Prasanna SRM, Duraiswami R.  2005.  Speaker Localization Using Excitation Source Information in Speech. Speech and Audio Processing, IEEE Transactions on. 13(5):751-761.

Raykar VC, Duraiswami R.  2005.  Approximate expressions for the mean and the covariance of the maximum likelihood estimator for acoustic source localization. Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on. 3:iii/73-iii/76Vol.3-iii/73-iii/76Vol.3.

Li Z, Duraiswami R.  2005.  A robust and self-reconfigurable design of spherical microphone array for multi-resolution beamforming. Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on. 4:iv/1137-iv/1140Vol.4-iv/1137-iv/1140Vol.4.

Duraiswami R, Raykar VC.  2005.  The manifolds of spatial hearing. Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on. 3:iii/285-iii/288Vol.3-iii/285-iii/288Vol.3.

Zotkin DN, Chi T, Shamma SA, Duraiswami R.  2005.  Neuromimetic sound representation for percept detection and manipulation. EURASIP Journal on Applied Signal Processing. 9:1350-1350.

Duraiswami R, Li Z, Zotkin DN, Grassi E, Gumerov NA.  2005.  Plane-wave decomposition analysis for spherical microphone arrays. IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, 2005.
:150-153.

Yang C, Duraiswami R, Davis LS.  2005.  Fast multiple object tracking via a hierarchical particle filter. Computer Vision, 2005. ICCV 2005. Tenth IEEE International Conference on. 1:212-219Vol.1-212-219Vol.1.

Raykar VC, Duraiswami R, Yegnanarayana B.  2005.  Extracting the frequencies of the pinna spectral notches in measured head related impulse responses. The Journal of the Acoustical Society of America. 118(1):364-374.

Yang C, Duraiswami R, Davis LS.  2005.  Efficient mean-shift tracking via a new similarity measure. Computer Vision and Pattern Recognition, 2005. CVPR 2005. IEEE Computer Society Conference on. 1:176-183vol.1-176-183vol.1.

Han B, Yang C, Duraiswami R, Davis LS.  2005.  Bayesian filtering and integral image for visual tracking. Proceedings of the Worshop on Image Analysis for Multimedia Interactive Services (WIAMIS'05).

Zandifar A, Duraiswami R, Davis LS.  2005.  A video-based framework for the analysis of presentations/posters. International Journal on Document Analysis and Recognition. 7(2):178-187.

Yang C, Duraiswami R, Davis LS.  2005.  Efficient kernel machines using the improved fast Gauss transform. Advances in neural information processing systems. 17:1561-1568.

Yegnanarayana B, Prasanna SRM, Duraiswami R, Zotkin DN.  2005.  Processing of reverberant speech for time-delay estimation. IEEE Transactions on Speech and Audio Processing. 13(6):1110-1118.

2004


Yang C, Duraiswami R, Davis LS.  2004.  Similarity measure for nonparametric kernel density based object tracking. Eighteenth Annual Conference on Neural Information Processing Systems, Vancouver.

David P, DeMenthon D, Duraiswami R, Samet H.  2004.  SoftPOSIT: Simultaneous pose and correspondence determination. International Journal of Computer Vision. 59(3):259-284.

Duraiswami R, Zotkin DN, Gumerov NA.  2004.  INTERPOLATION AND RANGE EXTRAPOLATION OF HEAD RELATED TRANSFER FUNCTIONS. IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS SPEECH AND SIGNAL PROCESSING. 4

Duraiswami R, Seydou F, Gumerov NA.  2004.  TM Electromagnetic Scattering from 2D Multilayered Dielectric Bodies-Numerical Solution. Applied Computational Electromagnetics Society journal.
(2):100-107.

Seydou F, Ramahi O, Duraiswami R, Seppdnen T.  2004.  Computation of Green's function for finite-size photonic crystals by boundary element method. Antennas and Propagation Society International Symposium, 2004. IEEE. 4:4320-4323Vol.4-4320-4323Vol.4.

Li Z, Duraiswami R, Davis LS.  2004.  Recording and reproducing high order surround auditory scenes for mixed and augmented reality. Mixed and Augmented Reality, 2004. ISMAR 2004. Third IEEE and ACM International Symposium on.
:240-249.

Raykar VC, Duraiswami R.  2004.  Automatic position calibration of multiple microphones. Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on. 4:iv-69-iv-72vol.4-iv-69-iv-72vol.4.

Zandifar A, Lim S, Duraiswami R, Gumerov NA, Davis LS.  2004.  Multi-level fast multipole method for thin plate spline evaluation. Image Processing, 2004. ICIP '04. 2004 International Conference on. 3:1683-1686Vol.3-1683-1686Vol.3.

Li Z, Duraiswami R, Grassi E, Davis LS.  2004.  A spherical microphone array system for traffic scene analysis. Intelligent Transportation Systems, 2004. Proceedings. The 7th International IEEE Conference on.
:338-342.

Raykar VC, Duraiswami R, Yegnanarayana B.  2004.  Extracting the frequencies of the pinna spectral notches from measured head-related impulse responses. The Journal of the Acoustical Society of America. 116(4):2625-2625.

Li Z, Duraiswami R, Grassi E, Davis LS.  2004.  Flexible layout and optimal cancellation of the orthonormality error for spherical microphone arrays. Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on. 4:iv-41-iv-44vol.4-iv-41-iv-44vol.4.

Raykar VC, Duraiswami R, Yegnanarayana B.  2004.  A study of the pinna anthropometry and the spectral notch frequencies. The Journal of the Acoustical Society of America. 116(4):2625-2625.

2003


Mesgarani N, Shamma S, Grant KW, Duraiswami R.  2003.  Augmented intelligibility in simultaneous multi-talker environments. Proc. International Conference on Auditory Display (ICAD’03).
:71-74.

Gumerov NA, Duraiswami R.  2003.  Acoustical scattering from N spheres using a multilevel fast multipole method. The Journal of the Acoustical Society of America. 113(4):2334-2334.

Elgammal A, Duraiswami R, Davis LS.  2003.  Efficient kernel density estimation using the fast gauss transform with applications to color modeling and tracking. Pattern Analysis and Machine Intelligence, IEEE Transactions on. 25(11):1499-1504.

Elgammal A, Duraiswami R, Davis LS.  2003.  Efficient kernel density estimation using the fast gauss transform with applications to color modeling and tracking. Pattern Analysis and Machine Intelligence, IEEE Transactions on. 25(11):1499-1504.

David P, DeMenthon D, Duraiswami R, Samet H.  2003.  Simultaneous pose and correspondence determination using line features. Computer Vision and Pattern Recognition, 2003. Proceedings. 2003 IEEE Computer Society Conference on. 2:II-424-II-431vol.2-II-424-II-431vol.2.

Zotkin DN, Shamma SA, Ru P, Duraiswami R, Davis LS.  2003.  Pitch and timbre manipulations using cortical representation of sound. Multimedia and Expo, IEEE International Conference on. 3:381-384.

Zotkin DN, Hwang J, Duraiswami R, Davis LS.  2003.  HRTF personalization using anthropometric measurements. Applications of Signal Processing to Audio and Acoustics, 2003 IEEE Workshop on..
:157-160.

Yang C, Duraiswami R, Gumerov NA, Davis LS.  2003.  Improved fast gauss transform and efficient kernel density estimation. Computer Vision, 2003. Proceedings. Ninth IEEE International Conference on.
:664-671vol.1-664-671vol.1.

Yang C, Duraiswami R, DeMenthon D, Davis LS.  2003.  Mean-shift analysis using quasiNewton methods. Image Processing, 2003. ICIP 2003. Proceedings. 2003 International Conference on. 2:II-447-50vol.3-II-447-50vol.3.

Seydou F, Seppanen T, Duraiswami R.  2003.  A simplified Newton method for the inverse orthotropic problem. Antennas and Propagation Society International Symposium, 2003. IEEE. 1:535-538vol.1-535-538vol.1.

Mohan A, Duraiswami R, Zotkin DN, DeMenthon D, Davis LS.  2003.  Using computer vision to generate customized spatial audio. Multimedia and Expo, IEEE International Conference on. 3:57-60.

Elgammal A, Duraiswami R, Davis LS.  2003.  Probabilistic tracking in joint feature-spatial spaces. Computer Vision and Pattern Recognition, 2003. Proceedings. 2003 IEEE Computer Society Conference on. 1:I-781-I-788vol.1-I-781-I-788vol.1.

Pages