Paper
13 December 2024 Pseudo-hyperdimensional optical remote sensing: assessment and challenge
Chenxin Fan, Yi Lin
Author Affiliations +
Proceedings Volume 13496, AOPC 2024: Optical Sensing, Imaging Technology, and Applications; 134960F (2024) https://doi.org/10.1117/12.3046273
Event: Applied Optics and Photonics China 2024 (AOPC2024), 2024, Beijing, China
Abstract
Synchronous heterogeneous optical remote sensing (RS) now is marching from integrated high-dimensional optical RS to single-system hyperdimensional optical RS. The representative case includes light detection and ranging (LiDAR) – from its integration with hyperspectral imager to the cutting-edge hyperspectral LiDAR. In this process, some kinds of pseudo-hyperdimensional optical RS systems are designed in order to achieve the performance comparable to the latter. However, whether such systems can give the satisfactory results for the applications with strict requirements on accuracy is always a concern for the discipline. Aiming at this issue, we attempt to make its data quality assessment, in the case of Leica BLK360. The results show the modes of laser reflectance, RGB reflectance, and laser footprint diameter index changing along with the ranging distance increasing. As regard to the key point of data quality assessment, i.e., how to assign the reflectance amplitudes of the red-green-blue (RGB) spectral bands for each laser footprint, we compare the performance of BLK360 with that of a real-sense hyperspectral LiDAR, the prototype developed by Finnish Geospatial Research Institute. The statistical comparison indicates that the latter works better, since it is not restricted to the problem caused by image matching to laser footprint, which is generally inherent in pseudo-hyperdimensional optical RS. With such challenges in application of pseudo-hyperdimensional optical RS clarified, the necessity of stepping into the stage of hyperdimensional optical RS is highlighted.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Chenxin Fan and Yi Lin "Pseudo-hyperdimensional optical remote sensing: assessment and challenge", Proc. SPIE 13496, AOPC 2024: Optical Sensing, Imaging Technology, and Applications, 134960F (13 December 2024); https://doi.org/10.1117/12.3046273
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KEYWORDS
Remote sensing

Ranging

Reflectivity

Plastics

LIDAR

Integrated optics

Beam diameter

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