Bandlimited shearlet-type frames with nice duals

JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS

卷:243

Article

Grohs, P.

关键词: Shearlets;    Nonlinear approximation;    Parabolic molecules;    Frames;   

DOI  :  10.1016/j.cam.2012.10.030

来源: Elsevier

【 摘 要 】

The present paper constructs a frame/dual frame pair of shearlet type such that both frames possess the distinctive time-frequency localization properties needed in establishing their desirable approximation properties. Our construction is based on a careful pasting together of two bandlimited shearlet Parseval frames associated with two different frequency cones, inspired by domain decomposition methods used primarily for the solution of PDEs. (c) 2012 Published by Elsevier B.V.

【 授权许可】

Free