What question did this study set out to answer?

Develop and validate an ultra-broadband frequency comb-based multispectral LiDAR system that simultaneously captures spectrally resolved distance and reflectance spectra for enhanced material discrimination.

October 6, 2022Optics ExpressOpen Access

Comb-based multispectral LiDAR providing reflectance and distance spectra

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Authors

YHYu HanSun Yat-sen University DSDavid Salido-MonzúETH Zurich AWAndreas WieserLMU Klinikum

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Implication

Experimental study demonstrates sub-millimeter distance and reflectance spectroscopy across target materials, highlighting improved classification accuracy for inhomogeneous surfaces.

Key Points

Develop and validate an ultra-broadband frequency comb-based multispectral LiDAR system that simultaneously captures spectrally resolved distance and reflectance spectra for enhanced material discrimination.
Constructed a comb-based multispectral LiDAR covering wavelengths from 580 nm to 900 nm across 7-channel and 33-channel configurations.
Calibrated differential delay and power measurements against a common reference object to yield distance and reflectance spectra.
Classified five tabletop material specimens using a support vector machine with a radial basis function kernel.
Achieved a distance measurement precision better than 0.1 mm across most spectral channels.
Demonstrated that combining distance and reflectance spectra enhances specimen discrimination, particularly when target materials display significant surface reflectance inhomogeneity.

Cite This Study

Han et al. (2022) studied this question.

synapsesocial.com/papers/6a7471f699129e9915f53e27 https://doi.org/10.1364/oe.473466

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Implication

Experimental study demonstrates sub-millimeter distance and reflectance spectroscopy across target materials, highlighting improved classification accuracy for inhomogeneous surfaces.

Comb-based multispectral LiDAR providing reflectance and distance spectra

Discussion

Member takes

Implication

Key Points

Cite This Study

Comb-based multispectral LiDAR providing reflectance and distance spectra

Discussion

Member takes

Implication

Key Points

Cite This Study

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