一个用于宽带主动照明和基于重建的光谱测量的光谱编码模拟器
Peng Jiang1,2, Xiaoxu Wang1, Zihui Zhang1
1Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China.
Sensors (Basel, Switzerland)
|July 11, 2023
概括
这项研究引入了一种新的光谱编码模拟器,用于准确的材料分析. 该设备使用数字微镜装置来实现高分辨率的光谱反射率和透射率测量.
科学领域:
- 光学和光子学 在光学和光子学.
- 频谱学是一种光谱学.
- 计算成像技术的成像
背景情况:
- 频谱测量对于各种领域的材料识别至关重要.
- 使用窄带光源的现有方法缺乏光谱分辨率和精度.
- 这些限制源于传统光谱编码光源的调节能力较低.
研究的目的:
- 开发一个先进的光谱编码模拟器,用于主动照明.
- 克服当前光谱测量技术的局限性.
- 提高光谱反射率和透射率测量的精度和分辨率.
主要方法:
- 设计了一个光谱编码模拟器,集成了一个镜光谱成像系统和一个数字微镜装置 (DMD).
- 通过动态切换DMD微镜来调整光谱波长和强度.
- 采用凸优化来解决对应于所需光谱编码的DMD模式.
- 模拟了光谱编码,并进行了光谱反射率和透射率的数值重建.
主要成果:
- 成功模拟了现有的光谱编码和高分辨率高斯随机编码,用于压缩传感.
- 对植物和矿物质的光谱反射率进行了准确的数值重建.
- 实验性地重建了一个校准过器的光谱透射率,并具有很高的准确性.
- 演示了模拟器对高分辨率和精确光谱测量的能力.
结论:
- 开发的光谱编码模拟器有效地解决了传统方法的精度和分辨率限制.
- 该系统可以通过主动照明精确测量光谱反射率和透射率.
- 这项技术对于需要详细材料光谱分析的应用具有重大潜力.
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