AIM: To evaluate the therapeutic effects of using prism effect in the correction of muscular asthenopia by changing optical center of presbyopic glasses.
目的：应用改变近用老视镜的光学中心所产生的三棱镜效应，消除老视患者近距离阅读和工作的肌性视疲劳。
The aim and significance of daily maintenance in operation of SDH optical transmission equipment for the electric power communication systems, the classification and contents of.
介绍了电力通信系统SDH光传输设备日常运行维护工作的目的及意义、维护工作的分类及内容、日常维护中应注意的一些问题。
Aim at video sequences with dynamic background, the CNN video motion segmentation algorithm based on optical flow field threshold is presented.
针对背景相对运动是视频序列，提出了基于光流场阈值的CNN视频分割算法。
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