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Open AccessArticle

Color Restoration for Full-Waveform Multispectral LiDAR Data

1
State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, 129 Luoyu Road, Wuhan 430072, China
2
State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, 30 Xiao Hongshan Road, Wuhan 430072, China
3
Faculty of Information Engineering, China University of Geosciences, Wuhan 430074, China
*
Authors to whom correspondence should be addressed.
Remote Sens. 2020, 12(4), 593; https://doi.org/10.3390/rs12040593
Received: 20 December 2019 / Revised: 29 January 2020 / Accepted: 8 February 2020 / Published: 11 February 2020
(This article belongs to the Section Engineering Remote Sensing)
The current full-waveform data at a single wavelength can mainly retrieve the geometric attributes of targets along the light path by detecting waveform components, resulting in the lack of spectral or color attribute information. This kind of device relies on a digital camera for acquiring the color information, however, which is inevitably limited by the lighting conditions and geometric registration errors. With the development of multispectral light detection and ranging (LiDAR) or even hyperspectral LiDAR that often utilize a supercontinuum laser source covering the whole visible light band, including red, green and blue bands, the simultaneous acquisition of color and spatial information becomes possible and makes passive imaging data no longer necessary. In this study, we propose a color restoration method for a full-waveform multispectral LiDAR (FWMSL) system. Additionally, we develop a multispectral lognormal function to fit the tailing echoes measured by FWMSL further accurately. Experimental data from our FWMSL system are used to evaluate the performance of the proposed method. The relative standard deviation, correlation coefficient (R2) and color difference ( Δ E ) metrics suggest that the color restoration for the full-waveform multispectral data is feasible. View Full-Text
Keywords: color measurement; full-waveform; lognormal function; multispectral LiDAR color measurement; full-waveform; lognormal function; multispectral LiDAR
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MDPI and ACS Style

Wang, B.; Song, S.; Gong, W.; Cao, X.; He, D.; Chen, Z.; Lin, X.; Li, F.; Sun, J. Color Restoration for Full-Waveform Multispectral LiDAR Data. Remote Sens. 2020, 12, 593.

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