The past few years have seen an incredible explosion of new (or revival of old) fast and effective algorithms for various imaging and informationscience applications. These include: nonloca; means, compressive sensing,Bregman iteration, as well as relatively old favorites such as the levelset method and PDE based image restoration. I'll give my ...
Creator:
Osher, Stanley J. (University of California, Los Angeles)
Created:
2011-03-08
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Similarity search is a fundamental computational task that involves searching for similar items in a large collection of objects. This task is often formulated as the nearest neighbor problem: given a database of n points in a d-dimensional space, devise a data structure that, given any query point, quickly finds its nearest neighbor in the data...
Creator:
Indyk, Piotr (Massachusetts Institute of Technology)
Created:
2016-09-15
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
I will describe joint work with Matt Elsey and Peter Smereka on large scale simulations of mean curvature and related geometric motions for networks of curves in 2D and surfaces in 3D. These motions arise as gradient flow for variational models encountered in image processing (Mumford-Shah model of image segmentation) and materials science (grai...
Creator:
Esedoglu, Selim (University of Michigan)
Created:
2011-03-09
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
We will give a brief overview of multiscale modeling for wave equationproblems and then focus on two techniques. One is an energy conservingDG method for time domain and the other is a new a new sweepingpreconditioner for frequency domain simulation. The latter is resultingin a computational procedure that essentially scales linearly even inthe ...
Creator:
Engquist, Bjorn (The University of Texas at Austin)
Created:
2010-11-02
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
We present a series of applications of the Jacobi evolution equations alonggeodesics in groups of diffeomorphisms. We describe, in particular, how theycan be used to perform feasible gradient descent algorithms for imagematching, in several situations, and illustrate this with 2D and 3Dexperiments. We also discuss parallel translation in the gro...
Creator:
Younes, Laurent (Johns Hopkins University)
Created:
2006-04-06
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Yellow background with black and white border and black, white and yellow rectilinear ornament with sunburst motif at top above bull-and-star Charlotte trademark
Creator:
Purcell, William Gray, 1880-1965
Contributor:
Alexander Brothers Leather and Belting Company
Created:
1918
Contributed By:
University of Minnesota Libraries, Northwest Architectural Archives.