Chinese Journal of Liquid Crystals and Displays, Volume. 38, Issue 11, 1481(2023)
Tilt sensor based on differential confocal microscope
Fig. 1. Principle of the system measurement and its structure diagram
Fig. 2. Changes of peak position of light spot at different tilt angles
Fig. 3. Flow chart of the improved Meanshift peak extraction algorithm
Fig. 5. Differential signal curves collected at different tilt degrees
Fig. 6. Peak position of the collected spot image extracted by improved Meanshift algorithm
Fig. 7. Relationship surface between the peak position of the facula and the tilt degree
Fig. 8. Relationship surface between the peak position of the facula and the tilt direction φ
Table 1. Measurement accuracy versus velocity contrast for different peak extraction algorithms
View tableView in ArticleTable 1. Measurement accuracy versus velocity contrast for different peak extraction algorithms
峰值提取方法 平均预测误差/（°） φ平均预测误差/（°） 预测平均耗时/s 改进Meanshift 0.011 0.128 0.141 传统Meanshift 0.012 0.131 0.215 质心法 0.034 0.214 0.003 二维高斯拟合法 0.015 0.142 3.024
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Ting-yu WANG, Zhi-yi WANG, Yong-qiang YANG, Xiao-tao MI, Jian-li WANG, Kai-nan YAO, Xue CHENG. Tilt sensor based on differential confocal microscope[J]. Chinese Journal of Liquid Crystals and Displays, 2023, 38(11): 1481
Category: Research Articles
Received: Feb. 7, 2023
Accepted: --
Published Online: Nov. 29, 2023
The Author Email: Zhi-yi WANG (wangjianli@ciomp.ac.cn), Jian-li WANG (wangzhiyi18@mails.ucas.edu.cn)
