Design and modeling of multi-spectral polarimetry streak tube imaging LiDAR

Guo, Shangwei; Li, Wenhao; Lai, Zhengchao; Meng, Xianqin; Han, Song; Zhai, Yuan‐Qi

doi:10.1016/j.infrared.2021.103872

Cited by 4 publications

(2 citation statements)

References 32 publications

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“…Polarimetric LiDAR incorporates polarimetry into LiDAR technology and has been extensively applied in atmospheric sensing 28 – 33 A few attempts of polarimetric LiDAR focus on enhancing the detection of solid targets, 34 , 35 such as vegetation, 36 – 39 distant constructions, 40 and objects relevant to autonomous driving in low-visibility conditions 25 , 41 . However, established polarimetric LiDARs are only single-, dual-, or triple-wavelength, being thus largely limited in extracting surrounding material information accurately.…”

Section: Introductionmentioning

confidence: 99%

Classification of material and surface roughness using polarimetric multispectral LiDAR

Han,

Salido-Monzú,

Wieser

2023

Opt. Eng.

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Section: Introductionmentioning

confidence: 99%

Classification of material and surface roughness using polarimetric multispectral LiDAR

Han,

Salido-Monzú,

Wieser

2023

Opt. Eng.

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“…In 2021, Shangwei Guo et al reported a multispectral polarization streak tube imaging lidar with the number of photocathode slits being 16. However, the slit length is only 32 mm [18]. Therefore, the number of slits is positively correlated with the effective area of the photocathode and inversely proportional to the spatial resolution.…”

Section: Introductionmentioning

confidence: 99%

3-D Imaging Lidar Based on Miniaturized Streak Tube

Tian¹,

Shen²,

Xue³

et al. 2023

Measurement Science Review

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Streak Tube Imaging Lidar (STIL), with advantages of non-scanning working mode, small distortion, high image framing rate, high resolution in low contrast environment, compact structure, easy miniaturization and high reliability, has a wide range of applications in military, aerospace, space confrontation, attack and defense, and marine law enforcement. This article introduces the principle of single-slit and multi-slit streak tube imaging lidar. It also introduces a single-slit general streak camera that can be used for imaging lidar. In addition, a multi-slit miniaturized streak tube with a single-lens focusing system with a total length of about 200 mm has been designed. The results of the 3D electromagnetic simulation show that the effective photocathode area of this streak tube reaches 36 mm × 36 mm, the temporal resolution is better than 50 ps, the dynamic spatial resolution can reach 12 lp/mm, and the whole photocathode can accommodate at least 19 slits in the effective detection range. The streak tube has a meshless structure, which is highly reliable. The streak tube can be used to increase the field of view of the imaging lidar system, improve the reliability, and achieve system miniaturization.

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Building roof extraction from ASTIL echo images applying OSA-YOLOv5s

et al. 2022

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Light detection and ranging (LiDAR) is a type of essential tool for urban planning and geoinformation extraction. Airborne streak tube imaging LiDAR (ASTIL) is a new system with great advantages in the rapid collection of remote sensing data. To the best of our knowledge, a new method to extract a building roof from the echo images of ASTIL is proposed. We improve YOLOv5s with a one-shot aggregation (OSA) module to improve efficiency. The experimental results show that the mean average precision of the OSA-YOLOv5s algorithm can reach 95.2%, and the frames per second can reach 11.74 using a CPU and 39.39 using a GPU. The method proposed can extract building objects efficiently from the echo images of ASTIL and acquire the building roof point cloud.

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Design and modeling of multi-spectral polarimetry streak tube imaging LiDAR

Cited by 4 publications

References 32 publications

Classification of material and surface roughness using polarimetric multispectral LiDAR

Classification of material and surface roughness using polarimetric multispectral LiDAR

3-D Imaging Lidar Based on Miniaturized Streak Tube

Building roof extraction from ASTIL echo images applying OSA-YOLOv5s

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