Seminar series
Date
Tue, 04 Feb 2014
Time
14:00 -
14:30
Location
L5
Speaker
Jeffrey D. Blanchard
Organisation
Grinnell College
Composite dilation wavelets are affine systems which extend the notion of wavelets by incorporating a second set of dilations. The addition of a second set of dilations allows the composite system to capture directional information in addition to time and frequency information. We classify admissible dilation groups at two extremes: frequency localization through minimally supported frequency composite dilation wavelets and time localization through crystallographic Haar-type composite dilation wavelets.