Influence of the Maximum Blur Radius on Depth Sensor Based on Liquid Crystal Lens

被引：2

作者：

Zheng, Liming ^{[1
]}

Chen, Xiaoxi ^{[1
]}

Zhang, Yalei ^{[1
]}

Ye, Mao ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Optoelect Sci & Engn, Chengdu 611731, Peoples R China

来源：

PHOTONIC SENSORS | 2021年 / 11卷 / 03期

关键词：

Depth from defocus; liquid crystal lens; maximum blur radius;

D O I：

10.1007/s13320-021-0621-x

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

This paper describes how the maximum blur radius affects the depth results by depth from the defocus (DFD) method based on liquid crystal (LC) lens. Boundary frequency is determined by the maximum blur radius. It is found that if the maximum blur radius used in the calculation is larger than the real value, the depth resolution obtained is reduced; on the other hand, if one smaller than the real value is used, the depth resolution in the middle range of the scene is increased, but errors occur in the near and far planes. Using the maximum blur radius close to the real one results in the best depth results.

引用

页码：371 / 375

页数：5

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