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A Sampling Theorem for Deconvolution in Two Dimensions
SIAM Journal on Imaging Sciences ( IF 2.1 ) Pub Date : 2020-10-22 , DOI: 10.1137/20m1329615
Joseph McDonald , Brett Bernstein , Carlos Fernandez-Granda

SIAM Journal on Imaging Sciences, Volume 13, Issue 4, Page 1754-1780, January 2020.
This work studies the problem of estimating a two-dimensional superposition of point sources or spikes from samples of their convolution with a Gaussian kernel. Our results show that minimizing a continuous counterpart of the $\ell_1$-norm exactly recovers the true spikes if they are sufficiently separated, and the samples are sufficiently dense. In addition, we provide numerical evidence that our results extend to non-Gaussian kernels relevant to microscopy and telescopy.


中文翻译:

二维反卷积的采样定理

SIAM影像科学杂志,第13卷,第4期,第1754-1780页,2020年1月。
这项工作研究了估计点源或峰值的二维叠加问题,这些点源或峰值来自高斯核卷积样本。我们的结果表明,如果充分分离了真实的峰值并且样本足够密集,则使\\ ell_1 $范数的连续对应项最小化可以准确地恢复真实峰值。此外,我们提供了数值证据,表明我们的结果扩展到了与显微镜和望远镜相关的非高斯核。
更新日期:2020-10-26
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