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Simultaneous Bayesian compressive sensing and blind deconvolution

机译:贝叶斯同时压缩感知和盲反卷积

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The idea of compressive sensing in imaging refers to the reconstruction of an unknown image through a small number of incoherent measurements. Blind deconvolution is the recovery of a sharp version of a blurred image when the blur kernel is unknown. In this paper, we combine these two problems trying to estimate the unknown sharp image and blur kernel solely through the compressive sensing measurements of a blurred image. We present a novel algorithm for simultaneous image reconstruction, restoration and parameter estimation. Using a hierarchical Bayesian modeling followed by an Expectation-Minimization approach we estimate the unknown image, blur and hyperparameters of the global distribution. Experimental results on simulated blurred images support the effectiveness of our method. Moreover, real passive millimeter-wave images are used for evaluating the proposed method as well as strengthening its practical aspects.
机译:成像中的压缩感测是指通过少量非相干测量来重建未知图像。盲反卷积是当模糊内核未知时恢复模糊图像的清晰版本。在本文中,我们结合了这两个问题来尝试估计未知的清晰图像并仅通过对模糊图像的压缩感测来模糊内核。我们提出了一种同时进行图像重建,恢复和参数估计的新颖算法。使用分层贝叶斯建模,然后采用期望最小化方法,我们可以估计全局分布的未知图像,模糊和超参数。在模拟模糊图像上的实验结果证明了我们方法的有效性。此外,真实的无源毫米波图像用于评估所提出的方法并增强其实用性。

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