Five edge images of an octagonal aperture using for sample drift detection

When the sample plane drifts from the focal plane, we realize the feedback-lock of the sample plane by analyzing the varied blurriness of aperture incoherent images.These are five edge images of an octagonal aperture, corresponding to five sample drift position spaced 0.3 microns apart. Drift distances are the name of the figure film.

当样品平面偏离焦平面时，我们通过分析孔径非相干图像（aperture incoherent images）的模糊程度变化，实现对样品平面的反馈锁定。本数据集包含五幅八角形孔径的边缘图像，分别对应五个间隔0.3微米的样品偏移位置，各图像的文件名以对应的偏移距离命名。