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Penrose Pixels for Super-Resolution

机译:彭罗斯像素超分辨率

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摘要

We present a novel approach to reconstruction-based super-resolution that uses aperiodic pixel tilings, such as a Penrose tiling or a biological retina, for improved performance. To this aim, we develop a new variant of the well-known error back projection super-resolution algorithm that makes use of the exact detector model in its back projection operator for better accuracy. Pixels in our model can vary in shape and size, and there may be gaps between adjacent pixels. The algorithm applies equally well to periodic or aperiodic pixel tilings. We present analysis and extensive tests using synthetic and real images to show that our approach using aperiodic layouts substantially outperforms existing reconstruction-based algorithms for regular pixel arrays. We close with a discussion of the feasibility of manufacturing CMOS or CCD chips with pixels arranged in Penrose tilings.
机译:我们提出了一种新颖的基于重建的超分辨率方法,该方法使用非周期性像素平铺(例如Penrose平铺或生物视网膜)来提高性能。为此,我们开发了一种著名的误差反投影超分辨率算法的新变体,该算法在其反投影算子中使用了精确的检测器模型,以实现更高的准确性。我们模型中的像素可以在形状和大小上有所不同,并且相邻像素之间可能存在间隙。该算法同样适用于周期性或非周期性像素平铺。我们目前使用合成图像和真实图像进行分析和广泛测试,以表明我们使用非周期性布局的方法大大优于现有的常规像素阵列基于重建的算法。最后,我们讨论制造像素排列在Penrose拼贴中的CMOS或CCD芯片的可行性。

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