WebOct 1, 2024 · Mathematically, blind ptychography is an inverse problem of simultaneous recovery of the object and the window function (the probe) given the intensities of the windowed Fourier transform. In ptychography, the window function has an intermediate scale between the pixel scale and the macro-scale of the extended object.

BLIND PTYCHOGRAPHY: UNIQUENESS

WebA tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Webinherent to any blind ptychography. However, when the mask is exactly known (i.e. 0= up to a constant phase factor), r = 0 and c= 1 so neither ambiguity can occur. In addition, for the regular raster scan (Fig. 1), it is well known that blind ptychography is susceptible to many other artifacts [51]. For a complete analysis of these ambiguities, the bob lamb photographer

Fast Iterative Algorithms for Blind Phase Retrieval: A Survey

WebDec 16, 2024 · The problem of blind ptychography is to determine the specimen object and the scanning probe simultaneously from diffraction data. By formulating the … WebAug 24, 2016 · Ptychography is a new kind of lens-less imaging technology for coherent diffractive imaging [].By recording overlapped diffraction patterns through the movement of the illuminating probe across the object, the complex-valued information of the original object can be recovered by phase-iterative algorithms [2–4] and lead to a fast … WebA typical blind ptychography scan corresponds to that shown in pink in Fig. 1 , and has step sizes of a quarter of a beam radius, or 88% beam area overlap between different scan positions. The large overlap provides sufficient redundancy in the dataset for reliable reconstruction of both the object and the completely clip art of paw print