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Linear Stable Sampling Rate: Optimality of 2D Wavelet Reconstructions from Fourier Measurements

2014/03/02 by Ben Adcock, Anders C. Hansen, Adcock, Ben +5
Computer Science · Earth and Planetary Sciences · Mathematics · #Image and Signal Denoising Methods #Mathematical Analysis and Transform Methods #Seismic Imaging and Inversion Techniques #math.FA

paper · pdf · doi:10.48550/arxiv.1403.0172

arxiv created 2014/03/24 · arxiv updated 2014/03/25

Abstract

In this paper we analyze two-dimensional wavelet reconstructions from Fourier samples within the framework of generalized sampling. For this, we consider both separable compactly-supported wavelets and boundary wavelets. We prove that the number of samples that must be acquired to ensure a stable and accurate reconstruction scales linearly with the number of reconstructing wavelet functions. We also provide numerical experiments that corroborate our theoretical results.

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