Artículos de revistas
Detection of edges from spectral data: New results
Registro en:
Applied And Computational Harmonic Analysis. Academic Press Inc Elsevier Science, v. 22, n. 3, n. 386, n. 393, 2007.
1063-5203
WOS:000246231500011
10.1016/j.acha.2006.10.002
Autor
Wei, MS
Martinez, AG
De Pierro, AR
Institución
Resumen
We are concerned with the problem of recovering edges of piecewise smooth functions with finitely many jump discontinuities. In a series of papers, Gelb and Tadmor presented computationally simple methods for this task that are based on the conjugate Fourier series with different concentration kernels. In this article we present experimental results comparing conjugate series based methods with a new approach based on polynomial filters and suitable approximations. This new approach proves to be more accurate and stable. (c) 2006 Elsevier Inc. All rights reserved. 22 3 386 393