Ramani Duraiswami 
I am an associate professor in the department of computer science and of the University of Maryland Institute of Advanced Computer Studies (UMIACS). I direct research at the Perceptual Interfaces and Reality Laboratory (PIRL), and have broad research interests in computer audition, computer vision and scientific computing.
NEW:
Our book: Fast
Multipole Methods for the Helmholtz Equation in Three Dimensions (The Elsevier
Electromagnetism Series) has just been published by Elsevier.)
For table of contents see here.
Research
Interests
Audio and Computational Acoustics:
Acoustics
for perceptual reality: Head Related Transfer Functions, Room Impulse Responses, Auditory Telepresence, Reproduction of audio using headphones,
Reproduction using speakers
Microphone Arrays: Beamforming, Source Localization, Source Modeling, Spherical Microphone Arrays, Cameras and Arrays, The Audio Camera
Auditory User Interfaces: Sonification of Data, Systems for presentation, auditory prosthesis for the visually impaired
Underwater
acoustics (older stuff): Bubble counting, sound propagation in bubbly media and
fog
Scientific Computation:
Fast Multipole Methods: Data Structures; Adaptive Algorithms; FMM for the Laplace, Helmholtz, Biharmonic, Maxwell and Stokes kernels; General kernels; Scattering problems
High Performance Computing: GPU Computing, Parallel Computing
Computational Statistics and Learning Methods: Improved Fast Gauss Transform in high dimensions; Mean-Shift mode seeking; Particle Filters; "Fast N-Body Learning"; Classification, Ranking, Gaussian Processes.
Data Fitting and Modeling: RBF interpolation; Data Structures for higher dimensional data; Non Uniform Fast Fourier Transforms
Boundary Element Methods: Speedup via the FMM; Computation of singular and near singular integrals; Meshless Methods; Software.
Other (older stuff): Electrical Impedance Tomography; Bubble Dynamics; Free surface flow; Spectral Methods; Effective Media; Inverse problems.
Computer Vision:
Vision aware audio; Tracking; Pose; Kernel methods, Vision based prosthetics for the visually impaired, application of fast algorithms to computer vision and image processing, The Audio Camera.
Teaching
Spring 2007, Fall 2005: CMSC 460/AMSC/MAPL 460: Computational Methods.
Fall
2002, 2003, 2004, 2006: CMSC 878R: Fast Multipole
Methods: Fundamentals and Applications, with Nail
Spring 2006: CMSC828D : Algorithms and systems for capture and playback of spatial audio
Spring 2005: CMSC 426: Computer Vision
Spring 2001 - now, Group Seminar: Weekly computer vision seminar to promote intra-lab discussion and dissemination of results.
Fall
2000: CMSC 828D:
Fundamentals of Computer Vision (with Larry Davis,
Spring
2000: Reading Course on
Statistical Pattern Recognition (with
Other
Affiliations
I
am a member of the following programs and
centers, all at the University of Maryland,
College Park.
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The Norbert Wiener Center for Harmonic Analysis and Applications |
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Professional
Service
Associate
editor of the ACM Transactions on Applied
Perception.
I organize (with David Jacobs) the weekly CFAR local seminar.
Member, Audio and Electroacoustics
Technical Committee, IEEE Signal Processing Society.
I am an ad hoc reviewer for
several journals and conferences.
Meetings
I was local arrangements chair
of IEEE Vis2006 and InfoVis 2006 held at Baltimore in
October 2006.
I was a co-organizer and
finance chair of The Second
International Symposium on 3D Data Processing, Visualization, and Transmission held between September 7 to 10, 2004 in the city of Thessaloniki, Greece.
I was program chair of the 3rd International
Conference on Mobile and Ubiquitous Multimedia (MUM2004) College Park, Maryland,
U.S.A. October 27 - 29, 2004
I was an organizer and finance chair of CVPR 2004, Washington,
DC, 27th June - 2nd July, 2004.
I was lead organizer of the workshop Fast Multipole Method, Tree-Code and Related
Approximate Algorithms held at the Center for Scientific Computing and Applied
Mathematical Modeling at the University of Maryland. (April 19 - April 30,
2004)
I was lead organizer of the workshop on Audio Assistive Technologies for the
visually impaired, held in conjunction with the International
Conference on Auditory Displays (ICAD) in Boston in July 2003.
I was submissions chair for
the Fifth International Conference on Automatic
Face and Gesture Recognition held in May 2002 in Washington D.C.
Students/Student
Collaborators
Currently Enrolled Students
Adam O'Donovan (Computational Perception)
Balaji Vasan (Microphone Arrays)
Zhenyu Zhang (Computational Nanoscience)
Graduated
Zhiyun Li (Auditory scene capture and recreation) (now at Leica)
Changjiang Yang (improved computational vision algorithms, fast Gauss transform, regularization) (now at Sarnoff)
Dmitry Zotkin (computational audio, microphone arrays, video-conferencing, active human tracking) (now at University of Maryland)
Yang Wang (visualization of versions of the Fast Multipole Method) (now at the University of Michigan Law School)
Vasanth Philomin (Intelligent Vehicles, robust condensation) (now at
Ross Cutler (Keck Laboratory) (now at Microsoft, Redmond, WA)
Collaborators/Group
Members
Adam O’ Donovan
Former Members
Visitors
Contact Information
E-mail
address: ramani AT umiacs.umd.edu
Web
address: http://www.umiacs.umd.edu/~ramani
Phone:
(301) 405 6710 Fax: (301) 314 9658
Mail address:
UMIACS, Univ. of Maryland, Room 3365 A.V. Williams Building, Building 115, College Park, MD 20742