阵列相机光照度特性检测方法研究

陈圣; 洪途; 吕众; 刘立欣; 冯茂林; 韩宇; 程习成; 谭勇

光学技术, 2022, 48 (5): 578, 网络出版: 2023-01-20

阵列相机光照度特性检测方法研究

Research on illumination characteristics detection method of array camera

论文大纲

陈圣 ¹洪途 ¹吕众 ¹刘立欣 ²冯茂林 ¹韩宇 ¹程习成 ¹谭勇 ¹

作者单位

¹ 长春理工大学物理学院, 吉林长春 130022

² 长春理工大学光电工程学院, 吉林长春 130022

辐射定标阵列相机动态范围信噪比光响应非均匀性 radiometric calibration array camera dynamic range signal-to-noise ratio non-uniformity of light response

摘要

针对阵列相机的定标检测需求, 研制一套多光源阵列相机辐射定标装置, 通过对积分球衰减效率的理论计算和系统光能量衰减曲线的实际测试, 可得到系统的光学传递曲线, 加上宽量程测量装置实现对系统的光强变化实时测量, 并运用多种光源结合衰减片轮组, 达到宽动态范围为1.728×10-5～54Lux的测试光源连续输出, 分别满足微光阵列相机、强光阵列相机和其他多种阵列相机的多参数检测需求。开展了阵列相机多参数检测实验和标定分析, 实验结果表明: 装置能长久实现光照度特性实时监测和对多种阵列相机进行相机品质检测, 能为阵列相机的运行环境和使用范畴进行判定。

Abstract

Aiming at the need of calibration detection of array camera, a radiometric calibration device of multi-light source array camera is developed in this work. By calculating the attenuation efficiency of the integrating sphere and testing the attenuation curve of the optical energy, the optical transfer curve of the system can be obtained. It employs a wide range measuring device to realize the real-time measurement of the system's light intensity change, and uses a variety of light sources combined with the attenuating wheel set to achieve the continuous output of the test light source with a wide dynamic range of 1.728×10-5~54Lux, respectively to meet the multi-parameter detection requirements of low-light array camera, high-light array camera and other array cameras. Finally, the multi-parameter detection experiment and calibration analysis of array camera are carried out in this work. The experimental results show that the device in this paper can realize real-time monitoring of illuminance characteristics and detect the quality of various array cameras for a long time, and can determine the operating environment and use scope of array cameras.

参考文献

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陈圣, 洪途, 吕众, 刘立欣, 冯茂林, 韩宇, 程习成, 谭勇. 阵列相机光照度特性检测方法研究[J]. 光学技术, 2022, 48(5): 578. CHEN Sheng, HONG Tu, LV Zhong, LIU Lixin, FENG Maolin, HAN Yu, CHENG Xicheng, TAN Yong. Research on illumination characteristics detection method of array camera[J]. Optical Technique, 2022, 48(5): 578.

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