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黑暗环境下利用超连续谱激光源进行主动高光谱成像
目标检测
2026/09/21
摘要：利用超连续谱 (SC) 激光照明器和可见/近红外高光谱相机构建了主动高光谱成像 (HSI) 系统，用于黑暗环境下的 物体光谱检测。结果表明，一旦提前对照明器进行特性分析，SC 照明器的高斯分布仍可用于精确的反射光谱测量。通过 与被动结果的比较证明了主动 HSI 结果的有效性。然后，利用主动 HSI 系统在一次推扫式测量中成功获取了不同物体 的反射光谱。通过主成分分析聚类和无监督 K 均值光谱分类算法，证明了这种具有高光谱和空间分辨率的主动 HSI 系 统对于特定光谱检测是高效且适用的。
关键词：激光光谱、主动高光谱成像、超连续谱激光
DOI：10.1088/1674-1056/28/3/034206
设备：GaiaField
Active hyperspectral imaging with a supercontinuum laser source in the dark
Abstract：An active hyperspectral imaging (HSI) system was built with a supercontinuum (SC) laser illuminator and a visible/near- infrared hyperspectral camera, which was used for object spectrum detection in the dark. It was demonstrated that the Gaussian- like distribution of the SC illuminator can still be used for accurate reflectance spectrum measurement once the illuminator was characterized in advance. The validity of active HSI results was demonstrated by comparison with passive results. Then, the active HSI system was used to acquire reflectance spectra of different objects in just one push broom measurement successfully. With algorithms of principal component analysis clustering and unsupervised K-means spectral classification, this active HSI system with high spectral and spatial resolutions was demonstrated to be efficient and applicable for specific spectrum detections.
Keywords：laser spectroscopy, active hyperspectral imaging, supercontinuum laser
