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Stochastic
Systems Group |
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PROGRAMS
&
PROJECTS
The Stochastic Systems Group and its members are actively involved with many
other organizations, companies, and universities. Below are brief descriptions
of our collaborative work with each group as well as any links to their
official web sites.
- Probabilistic Modeling and Statistical Inference for
Random Fields and Space-Time Processes, Office of Naval
Research (N00014-91-J-1004)
The focus of this project is on basic theory for
spatially-distributed and space-time random phenomena. Areas of
current interest focus on fusion and assimilation of large,
multi-sensor data sets in remote sensing using multiresolution
stochastic models. The theory of such models, especially for handling
multiresolution data and nonstationary phenomena is of particular
importance. While there are no formal relationships tied to this
grant, this research involves substantial collaboration with two
M.I.T. groups: one headed by Prof. Carl Wunsch (Dep't. of Earth and
Planetary Sciences) for applications in oceanography and one headed by
Prof. Dennis McLaughlin (Civil Engineering) for applications in
hydrology. An addition to this work also involves interaction with
Dr. David Rossi of Schlumberger Studies and Production (Clamart,
France) in the area of geophysical exploration.
- Multiresolution Methods in Systems, Signals, and Images, Air Force
Office of Scientific Research(F49620-95-1-0083)
The focus of this project is on the basic theory of
multiresolution stochastic models with applications to a variety of
signal and image processing problems including the modeling and
analysis of fractals, motion estimation from image sequences, image
segmentation, and efficient algorithms for optimal detection in
multiple access communications. There are no formal relationships
tied to this grant, but the research involves both collaboration and
transitions of our research to Alphatech, Inc. (point of contact:
Dr. Robert Washburn, Vice-President) and Lincoln Laboratory (point of
contact: Dr. Donald Boroson).
- Defense Advanced Research Project Agency (through AFOSR and
Alphatech) (F49620-93-1-0604)
These are an interconnected set of research projects aimed at
developing a fundamental, unified theory for automatic target
recognition (ATR), including basic sensor physics, image and signal
analysis, and object recognition and performance analysis. These
efforts involve substantive interactions with two other groups at
M.I.T., one headed by Prof. Jeffrey Shapiro and the other by
Prof. Eric Grimson and Paul Viola. Early work on one of these
projects (61477) involved research on several sensing modalities
including laser radar and synthetic aperture radar (SAR), but current
and planned activities have focused and will focus on SAR-based ATR.
These projects also involve considerable collaboration with Lincoln
Laboratory (Drs. Leslie Novak and Daniel Dudgeon) and Alphatech
(Drs. Robert Washburn, William Irving, Ronald Chaney, and Alan Chao),
and one of these projects (63645) is in fact a joint project with
Alphatech and Yale University.
- Air Force Office of Scientific Research (through Boston
University)
This project represents a large, multi-university effort led
by Boston University (Drs. David Castenon and W. Clem Karl) and also
involving Northeastern University, Courant Institute, University of
Michigan, University of Minnesota, and Stanford University
(See MURI web-site). The
overall theme of this research is the development of basic analytical
methods for reduced-signature target recognition. Other
M.I.T. participants in this program include Prof. Jeffrey Shapiro,
Prof. Gilbert Strang, Prof. Eric Grimson, and Prof. Paul Viola.
Current work on this project includes nonlinear evolution for image
segmentation and image analysis for moving targets.
- Army Research Office (through Washington University)
This project is part of the Center
for Imaging Science, based at Washington University
(Prof. Michael Miller) and also involving the University of Texas.
The basic objective of this research center is the introduction and
study of innovative stochastic models for imagery. The intellectual
aim is the development of a fundamental understanding of problems of
extracting information from imagery, and the application context is
primarily automatic target recognition. Other M.I.T. participants
include Prof. Jeffrey Shapiro and Sanjoy Mitter and Dr. Thomas Green
of Lincoln Laboratory. Sensors of interest here include
electro-optical, lasar radar, as well as radar. Current projects
include statistical methods for multiresolution image segmentation and
for image formation in the presence of lasar speckle.
Problems with this site should be emailed to jonesb@mit.edu