4.3 Article

Preliminary verification of hyperspectral LiDAR covering VIS-NIR-SWIR used for objects classification

期刊

EUROPEAN JOURNAL OF REMOTE SENSING
卷 55, 期 1, 页码 291-303

出版社

TAYLOR & FRANCIS LTD
DOI: 10.1080/22797254.2022.2056519

关键词

Remote sensing; classification; hyperspectral LiDAR; SWIR spectrum; super-continuum laser; gaussian fitting

资金

  1. Academy of Finland [336145, 337656, 314312]
  2. Foreign Experts Program of Ministry of Science and Technology in China [G2021026027L]
  3. Bureau of International Co-operation Chinese Academy of Sciences [181811KYSB20160040]
  4. Chinese Academy of Sciences Innovation Fund Project [CXJJ-19S030]
  5. Strategic Priority Research Program of the Chinese Academy of Sciences [XDA22030202]
  6. Guangdong Basic and Applied Basic Research Foundation [2019A1515011501]
  7. Beijing Municipal Science & Technology Commission [Z181100001018036]
  8. Shanghai Science and Technology Foundation [18590712600]
  9. Jihua lab [X190211TE190]
  10. Huawei [9424877]

向作者/读者索取更多资源

This study proposed and tested an eight-channel Hyperspectral LiDAR prototype covering visible to short-wavelength infrared range. The results showed that the prototype is capable of effectively obtaining spectral profiles of plants, textiles, camouflage objects, and ore samples, with potential applications in vegetation, mining, and surveillance related object classification.
Hyperspectral LiDAR (HSL) has been utilised as an efficacious technique in objects classification and recognition based on its synchronously obtaining spectral and spatial information. However, the spectral information obtained by most of the developed HSL was in the visible and near-infrared range (VNIR, 400-1000 nm). Whereas spectral information in a longer wavelength range showed more useful for classification and detection, such as detecting vegetation water content. This paper proposed and tested an eight-channel HSL prototype covering visible to near-infrared and even short-wavelength infrared (VIS-NIR-SWIR, 450-1460 nm) based on a Super-continuum (SC) laser. System calibration, range precision and spectral profiles experiments were carried out to test the HSL prototype. The spectral profiles collected by the HSL are consistent with those acquired by the commercial spectrometer (SVC (c) HR-1024). And these spectral profiles of plants, textiles, camouflage objects, and ore samples collected by the HSL, especially those in the SWIR range, can effectively reveal the health status of the plants, and classify the manufacturing materials and ore species. The unique characteristics of spectral profiles covering VIS-NIR-SWIR promote the HSL shows the potential applications on objects classification related to vegetation, mining and surveillance.

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