本组图像是通过佳能单反相机（EOS 70D）手动调焦采集作为最终的实验数据，引用时可参考文献：
陈健,王灵阳,陈德全,等.基于对焦深度法的光学显微镜系统设计[J].应用光学.2017,(6).979-984
CHEN J, CHEN D, MENG S. A novel region selection algorithm for auto-focusing method based on depth from focus[M], Euro-china Conference on Intelli
