Phase imaging with rotating illumination
Phase imaging with rotating illumination
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DOI：
10.3788/col201412.010501
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发表时间：
2014
影响因子：
3.5
通讯作者：
Haiyan Wang;Cheng Liu;X. Pan;Jun Cheng;Jianqiang Zhu
中科院分区：
文献类型：
--
作者：
Haiyan Wang;Cheng Liu;X. Pan;Jun Cheng;Jianqiang Zhu
针对扩展关联迭代引擎（ePIE）算法的不足，提出了一种改进的ePIE算法。利用平面波照明的可旋转“屏幕”的出射波作为样品上的照明光，可同时重建可旋转物体和样品的复杂透射函数。与标准的x-y扫描PIE算法相比，该算法完全避免了工作台滞后（或间隙误差）的影响。与标准PIE算法相比，该算法具有更快的收敛速度和更好的精度。
A modified extended-ptychographical-iterative-engine (ePIE) algorithm is proposed to overcome the disadvantages of ePIE technique and reduce the influence of stage hysteresis or backlash error. The exit wave of a rotatable "screen" illuminated by plane wave is used as the illumination on the specimen, and the complex transmission functions of the rotatable object and specimen can be simultaneously reconstructed. Compared with the standard x-y scanning PIE algorithm, the proposed algorithm can completely avoid the influence of stage hysteresis (or backlash error). The proposed algorithm also has higher convergence speed and better accuracy than the standard PIE algorithm.