Ramani Duraiswami

Professor

4244 Iribe Center

(301) 405-6710

Academic Web Page

Research Group(s):

Center for Automation Research

University of Maryland Center for Machine Learning

Education:

Ph.D., Johns Hopkins University (Mechanical Engineering)

Biography:

Ramani Duraiswami is a professor of computer science with an appointment in the University of Maryland Institute for Advanced Computer Studies.

His research in audio and computational acoustics aims to replicate human spatial sound processing in machines, using insights from physical mechanisms, computing and experiments. In scientific computing, Duraiswami works on solving large-scale problems with approximation algorithms and parallel computing, focusing on improving speed with advanced algorithms and multicore architectures.

Go here to view Duraiswami’s academic publications listed on Google Scholar.

Publications

2006

Raykar V C, Duraiswami R. 2006. Very fast optimal bandwidth selection for univariate kernel density estimation. Technical Reports from UMIACS UMIACS-TR-2005-73.

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.

Gumerov NA, Duraiswami R, Zotkin DN. 2006. Head-related transfer functions via the fast multipole accelerated boundary element method. The Journal of the Acoustical Society of America. 120(5):3342-3343.

Gumerov NA, Duraiswami R. 2006. Efficient computation of 3-D acoustical scattering from multiple arbitrarily shaped objects using the boundary element method/fast multipole method (BEM/FMM). The Journal of the Acoustical Society of America. 120(5):3282-3282.

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.

Seydou F, Ramahi OM, Duraiswami R, Seppänen T. 2006. Numerical computation of the Green?s function for two-dimensional finite-size photonic crystals of infinite length Optics ExpressOpt. Express. 14(23):11362-11371.

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.

Gumerov NA, Duraiswami R. 2006. Fast multipole method for the biharmonic equation in three dimensions. Journal of Computational Physics. 215(1):363-383.

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.

2005

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).

Zotkin DN, Davis LS, Duraiswami R, Grassi E, Gumerov NA, Zhiyun L. 2005. High Order Spatial Audio Capture and Its Binaural Head-Tracked Playback Over Headphones with HRTF Cues. Audio Engineering Society Convention 119.

Gumerov NA, Duraiswami R. 2005. Computation of scattering from clusters of spheres using the fast multipole method. The Journal of the Acoustical Society of America. 117(4):1744-1761.

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.

Duraiswami R, Zotkin DN, Li Z, Grassi E, Gumerov NA, Davis LS. 2005. High Order Spatial Audio Capture and Binaural Head-Tracked Playback over Headphones with HRTF Cues. Proceedings 119th convention of AES.

Duraiswami R, Zotkin DN, Li Z, Grassi E, Gumerov NA, Davis LS. 2005. System for capturing of highorder spatial audio using spherical microphone array and binaural head-tracked playback over headphones with head related transfer function cues. Proc. 119th convention AES.

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.

Gumerov NA, Duraiswami R. 2005. Computation of scattering from clusters of spheres using the fast multipole method. The Journal of the Acoustical Society of America. 117:1744-1744.

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.

Davis LS, Duraiswami R, Grassi E, Gumerov NA, Li Z, Zotkin DN. 2005. High Order Spatial Audio Capture and Its Binaural Head-Tracked Playback Over Headphones with HRTF Cues. Audio Engineering Society Convention 119.

Gumerov NA, Duraiswami R. 2005. Fast Multipole Method for the Biharmonic Equation. UMIACS-TR-2005-29

Gumerov NA, Duraiswami R. 2005. Comparison of the Efficiency of Translation Operators Used in the Fast Multipole Method for the 3D Laplace Equation. Technical Reports from UMIACS UMIACS-TR–2005-09.

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.

2004

Zotkin DN, Duraiswami R, Davis LS. 2004. Rendering localized spatial audio in a virtual auditory space. IEEE Transactions on Multimedia. 6(4):553-564.

Zotkin DN, Duraiswami R. 2004. Accelerated speech source localization via a hierarchical search of steered response power. IEEE Transactions on Speech and Audio Processing. 12(5):499-508.

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.

Tang Z, Duraiswami R, Gumerov NA. 2004. FAST ALGORITHMS TO COMPUTE MATRIX-VECTOR PRODUCTS FOR PASCAL MATRICES. Technical Reports from UMIACS UMIACS-TR-2004-08.

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.

Yang C, Duraiswami R, Elgammal A, Davis LS. 2004. On-Line Kernel-Based Tracking in Joint Feature-Spatial Spaces. IEEE, 0-7695-2158-2164.

Zotkin DN, Duraiswami R, Davis LS. 2004. Rendering localized spatial audio in a virtual auditory space. Multimedia, IEEE Transactions on. 6(4):553-564.

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.

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.

Li Z, Duraiswami R, Gumerov NA. 2004. Capture and recreation of higher order 3d sound fields via reciprocity. International Conference on Audio Display.

Zhao H, Plaisant C, Shneiderman B, Duraiswami R. 2004. Sonification of geo-referenced data for auditory information seeking: Design principle and pilot study. Proceedings of ICAD.

Gumerov NA, Zandifar A, Duraiswami R, Davis LS. 2004. Structure of applicable surfaces from single views. Computer Vision-ECCV 2004. :482-496.

Gumerov NA, Duraiswami R. 2004. Efficient computation of acoustical scattering from N spheres via the fast multipole method accelerated flexible generalized minimal residual method. The Journal of the Acoustical Society of America. 116(4):2528-2528.

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

Gumerov NA, Duraiswami R. 2004. Fast Multipole Methods For The Helmholtz Equation In Three Dimensions.

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.

2003

Liu K, Duraiswami R, Davis LS. 2003. A Simple and Optimal Energy Surface Reconstruction Algorithm from Volumetric Data. Technical Reports from UMIACS.

Seydou F, Duraiswami R, Seppanen T. 2003. Three dimensional acoustic scattering from an M multilayered domain via an integral equation approach. Antennas and Propagation Society International Symposium, 2003. IEEE. 1:669-672vol.1-669-672vol.1.

Zotkin DN, Shamma SA, Ru P, Duraiswami R, Davis LS. 2003. AUDIO-P2. 1: PITCH AND TIMBRE MANIPULATIONS USING CORTICAL REPRESENTATION OF SOUND. IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS SPEECH AND SIGNAL PROCESSING. 5

Seydou F, Duraiswami R, Seppanen T. 2003. Integral equation solution of electromagnetic scattering from a multilayered cylindrical waveguide. Antennas and Propagation Society International Symposium, 2003. IEEE. 3:524-527vol.3-524-527vol.3.

Raykar VC, Duraiswami R, Davis LS, Yegnanarayana B. 2003. Extracting significant features from the hrtf. Proceedings of the 2003 International Conference on Auditory Display.

Seydou F, Duraiswami R, Seppanen T. 2003. A boundary element method for electromagnetic scattering by multiple cylinders. Antennas and Propagation Society International Symposium, 2003. IEEE. 3:516-519vol.3-516-519vol.3.

Seydou F, Duraiswami R, Seppanen T. 2003. A 2D profile reconstruction in a multilayered waveguide structure. Antennas and Propagation Society International Symposium, 2003. IEEE. 1:531-534vol.1-531-534vol.1.

Gumerov NA, Duraiswami R, Borovikov EA. 2003. Data Structures, Optimal Choice of Parameters, and Complexity Results for Generalized Multilevel Fast Multipole Methods in $d$ Dimensions. Technical Reports from UMIACS UMIACS-TR-2003-28.

Seydou F, Gumerov NA, Duraiswami R. 2003. Two methods for solving a 3D acoustic inverse scattering problem. The Journal of the Acoustical Society of America. 113(4):2191-2191.

Seydou F, Duraiswami R, Gumerov NA. 2003. Analysis of particular phononic structures using single integral equations. The Journal of the Acoustical Society of America. 113(4):2284-2284.

Raykar VC, Duraiswami R, Yegnanarayana B, Prasanna SRM. 2003. Tracking a moving speaker using excitation source information. Eighth European Conference on Speech Communication and Technology.

Raykar VC, Duraiswami R, Davis LS, Yegnanarayana B. 2003. Extracting significant features from the HRTF. Proceedings of the 2003 International Conference on Auditory Display.