The Imaging and Computing Group (ICG) studies the mathematical and numerical challenges of inverse wave scattering.
The group‘s research directions include applied analysis (harmonic, microlocal), computational wave propagation, fast numerical algorithms, optimization methods, and sparse and separated expansions for data representation. Many of the problems we try to solve are inspired from seismic and radar imaging.
We are always on the lookout for talented people to join the group!
Research Highlights
Matrix probing: randomized fitting for the wave-equation Hessian. What can be determined about the pseudoinverse pinv(A) of a matrix A from one application of A to a vector of random entries? A ...read more
A butterfly algorithm for synthetic aperture radar imaging. We propose what is perhaps the first O(N log N) controlled-accuracy algorithm for SAR imaging. We use the butterfly scheme, an alternative to the FFT ...read more
Wave computation with Fourier integral operators. We propose a new time upscaling method to avoid the CFL condition for acoustic wave propagation in a smooth heterogeneous medium, by numerically representing ...read more
News and Events
October 2011
Welcome to Russ Hewett, Vincent Jugnon, Xiangxiong Zhang, and Ting Zhou!
Updated September, 2011
MIT undergraduates: a possible UROP project for this semester.
Updated August 3, 2011
Current Job Posting - One postdoc position on the mathematics of compressed sensing, one postdoc position in mathematical geophysics. One summer intern position. See the openings page for descriptions.
Updated August 3, 2011
Upcoming conferences - AMS annual meeting in Boston, Jan 2012 - SAR2012 at IPAM - Harrington fellows probability meeting at UT Austin, Apr 2012 - PICOF 12 - SIAM IS12 - EAGE 2012 - SEG 2012.
