arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1304.7337physics.optics
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大视场显微镜移变光瞳像差特性研究

Characterization of shift-variant pupil aberrations for wide field-of-view microscopy

Guoan Zheng, Xiaoze Ou, Roarke Horstmeyer, Changhuei Yang

摘要:

我们描述了一个简单而强大的方法来表征宽视场显微镜系统的移变光瞳像差。我们推导出位置相关的光瞳传递函数,首先捕获多个强度图像在不同的散焦设置,广义模式搜索(GPS)算法,然后应用到恢复复杂的光瞳函数在350个不同的空间位置在整个视场。参数拟合将这些瞳孔函数转换成精确的2D像差图。我们证明了移变像差补偿,通过使用信息保存的图像去卷积计划在整个视场。这种自动化的移位变化的瞳孔表征将促进用于未来的千兆像素成像平台的像差校正的新方法。

英文摘要:

We describe a simple and robust approach for characterizing the shift-variant pupil aberrations of wide field-of-view microscopy systems. We derive the location-dependent pupil transfer functions by first capturing multiple intensity images at different defocus settings; a generalized pattern search (GPS) algorithm is then applied to recover the complex pupil functions at ~350 different spatial locations over the entire field-of-view. Parameter fitting transforms these pupil functions into accurate 2D aberration maps. We demonstrate shift-variant aberration compensation by using an information-preserving image deconvolution scheme over the entire field-of-view. Such automated shift-variant pupil characterization will facilitate new approaches of aberration correction for future gigapixel imaging platforms.

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