X-ray image reconstruction from a diffraction pattern alone
X-ray image reconstruction from a diffraction pattern alone
复制标题
DOI：
10.1103/physrevb.68.140101
复制
发表时间：
2003-10-01
影响因子：
3.7
通讯作者：
Spence, JCH
中科院分区：
文献类型：
--
作者：
Marchesini, S;He, H;Spence, JCH
散射反问题的解决方案将提供无像差、衍射受限的三维图像，而不受基于透镜的层析成像系统的分辨率和景深限制。强大的算法越来越多地被用作形成此类图像的透镜。然而，目前的图像重建方法需要知道物体的形状和在实验中不可避免地丢失的低空间频率。因此，以前已经使用衍射成像来提高通过其他手段获得的图像的分辨率。在这里，我们实验演示了一种反转方法，它重建对象的图像，而不需要任何这样的先验知识。
A solution to the inversion problem of scattering would offer aberration-free diffraction-limited three-dimensional images without the resolution and depth-of-field limitations of lens-based tomographic systems. Powerful algorithms are increasingly being used to act as lenses to form such images. Current image reconstruction methods, however, require the knowledge of the shape of the object and the low spatial frequencies unavoidably lost in experiments. Diffractive imaging has thus previously been used to increase the resolution of images obtained by other means. Here we experimentally demonstrate an inversion method, which reconstructs the image of the object without the need for any such prior knowledge.