[extropy-chat] Public Lecture: Surfing with Wavelets

[Amara Graps]

For you MIT-area people, a talk for you:

http://www.claymath.org/public_lectures/daubechies2.php


** Surfing with wavelets **

Ingrid Daubechies, Princeton University

Tuesday, April 10, 2007 at 7:00 PM
Kirsch Auditorium (Room 32 -123)
MIT, Stata Center
Cambridge, Massachusetts


In this talk, Princeton mathematics professor Ingrid Daubechies will
explain the basic principles of wavelets and illustrate how they are
used by scientists as a mathematical tool in many different
applications.

Wavelets give a new approach to the analysis of sounds and images, and
are used in many other applications. The wavelet transform provides the
mathematical analog of a music score: just as the score tells a musician
which notes to play when, the wavelet analysis of a sound takes things
apart into elementary units with a well defined frequency (which note?)
and a well defined time (when?). For images, wavelets allow you to first
describe the coarse features with a broad brush, and then later to fill
in details, as with the zoom function of a camera. The wavelet transform
is sometimes called a "mathematical micropscope."

-- 

Amara Graps, PhD      www.amara.com
INAF Istituto di Fisica dello Spazio Interplanetario (IFSI), Roma, ITALIA
Associate Research Scientist, Planetary Science Institute (PSI), Tucson