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Dose-efficient automatic differentiation for ptychographic reconstruction

delete2024-06-12
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OA
AI
L
Longlong Wu
S
Shinjae Yoo
Y
Yong S. Chu
X
Xiaojing Huang *
I
Ian Robinson *
DOI:10.1364/OPTICA.522380delete
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摘要

摘要

En 中文
Ptychography作为一种强大的无透镜成像方法,经过几十年的发展,已成为相干衍射成像家族的热门成员。利用低剂量x射线和/或快速扫描的能力在印刷测量中提供了很大的优势 (例如,当测量辐射敏感样品时),但导致低光子统计,使得随后的相位检索具有挑战性。在这里,我们演示了一种剂量有效的自动区分框架,用于在低光子统计和低重叠率下进行重叠重建 (DAP)。由于该DAP框架不需要相互空间约束,因此基于各种前向模型的框架在这些条件下显示出优越的性能。它有效地抑制了重建图像中的潜在伪影,特别是对于光栅扫描中固有的周期性伪影。我们使用模拟和实测数据集验证了该方法的有效性和鲁棒性。
Keyword:
RAY
PLATFORM

期刊

Optica 封面图
Optica
IF:
8.5
论文数:
2.4K
被引数:
2.1W

机构

U
united states department of energy (doe)
学者数:
11.3W
论文数: 9.6W
被引数: 246
B
Brookhaven National Laboratory
学者数:
6.4K
论文数: 4.9K
被引数: 1.9W
引用论文

引用论文

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