利用梯度平方函数高斯插值实现在峰值附近的精确调焦。
Gauss interpolation realized the fine focusing nearby the peak of focusing curve based on the gradient energy function.
为实现免散瞳眼底相机在被观测眼底图像较暗情况下的精确调焦，提出了双光楔裂像调焦方法。
A focusing method by adjusting two slit mark images was proposed to realize accurate focusing of a non-mydriatic fundus camera for an observed retina image in dark.
基于智能化测量仪的研制，就如何利用VFW实时视频，人工调节计算机判别，方便的实现精确调焦进行了探讨和研究，为图像测量系统图像的采集和处理提供方法。
The paper discusses how to make use of VFW real-time video to implement precision focus conveniently, adjustde by manual work and distinguish by computer .
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