Bayesian localization microscopy based on intensity distribution of fluorophores.

Bayesian localization microscopy based on intensity distribution of fluorophores.
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基于荧光团强度分布的贝叶斯定位显微镜

DOI:
10.1007/s13238-015-0133-9
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发表时间:
2015-03
期刊:
影响因子:
21.1
通讯作者:
Zhang, Fa
Zhang, Fa
中科院分区:
生物学1区
文献类型:
--
作者:
Xu, Fan;Zhang, Mingshu;Liu, Zhiyong;Xu, Pingyong;Zhang, Fa

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超分辨率显微镜技术克服了光学衍射的限制。最近,漂白和闪烁数据的贝叶斯分析(3B)方法已成为获得超分辨率荧光图像的重要工具。 3B 利用细胞中添加或去除荧光团引起的信息变化来拟合数据。当添加新的荧光团时,3B会选择一个随机的初始位置,优化该位置,然后确定其可靠性。然而,荧光团并不是均匀分布在整个图像区域中,并且给定位置处的荧光强度与在该位置观察到荧光团的概率正相关。在本文中,我们提出了基于荧光强度分布(FID3B)的漂白和闪烁显微镜方法的贝叶斯分析。我们利用强度分布来选择更可靠的位置作为荧光团的初始位置。这种方法可以改善重建结果并显着减少计算时间。我们使用来自细胞结构的模拟数据和实验数据来验证我们的方法的性能。结果证实了我们方法的有效性。本文的在线版本 (doi:10.1007/s13238-015-0133-9) 包含补充材料,可供授权用户使用。
Super-resolution microscopy techniques have overcome the limit of optical diffraction. Recently, the Bayesian analysis of Bleaching and Blinking data (3B) method has emerged as an important tool to obtain super-resolution fluorescence images. 3B uses the change in information caused by adding or removing fluorophores in the cell to fit the data. When adding a new fluorophore, 3B selects a random initial position, optimizes this position and then determines its reliability. However, the fluorophores are not evenly distributed in the entire image region, and the fluorescence intensity at a given position positively correlates with the probability of observing a fluorophore at this position. In this paper, we present a Bayesian analysis of Bleaching and Blinking microscopy method based on fluorescence intensity distribution (FID3B). We utilize the intensity distribution to select more reliable positions as the initial positions of fluorophores. This approach can improve the reconstruction results and significantly reduce the computational time. We validate the performance of our method using both simulated data and experimental data from cellular structures. The results confirm the effectiveness of our method. The online version of this article (doi:10.1007/s13238-015-0133-9) contains supplementary material, which is available to authorized users.
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