Results 21 to 30 of about 657,522 (147)

High-Flux Fast Photon-Counting 3D Imaging Based on Empirical Depth Error Correction

Photonics, 2023
The time-correlated single-photon-counting (TCSPC) three-dimensional (3D) imaging lidar system has broad application prospects in the field of low-light 3D imaging because of its single-photon detection sensitivity and picoseconds temporal resolution ...
Xiaofang Wang, Tongyi Zhang, Yan Kang, Weiwei Li, Jintao Liang   +4 more
doaj   +1 more source

Research on the Adaptability of Typical Denoising Algorithms Based on ICESat-2 Data

Remote Sensing, 2023
Photon-counting light detection and ranging (LiDAR) emits and receives weak photon signals, which are easily mixed with background noise caused by the sun, the atmosphere, etc., and is thus difficult to distinguish.
Mengyun Kui, Yunna Xu, Jinliang Wang, Feng Cheng   +3 more
doaj   +1 more source

Efficient and Noise Robust Photon-Counting Imaging with First Signal Photon Unit Method

Photonics, 2021
Efficient photon-counting imaging in low signal photon level is challenging, especially when noise is intensive. In this paper, we report a first signal photon unit (FSPU) method to rapidly reconstruct depth image from sparse signal photon counts with ...
Kangjian Hua, Bo Liu, Zhen Chen, Liang Fang, Huachuang Wang   +4 more
doaj   +1 more source

Design and evaluation of multispectral LiDAR for the recovery of arboreal parameters [PDF]

, 2014
Multispectral light detection and ranging (LiDAR) has the potential to recover structural and physiological data from arboreal samples and, by extension, from forest canopies when deployed on aerial or space platforms.
Nichol, Caroline, Martinez-Ramirez, Daniel, Ximing, Ren, Wallace, A.M., Woodhouse, Iain, Wallace, Andrew Michael, Nichol, Caroline J, McCarthy, Aongus, Buller, Gerald, Morak, Simone, Woodhouse, Iain H, Ren, Ximing, Buller, Gerald Stuart   +12 more
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Evaluation and Improvement of Lidar Performance Based on Temporal and Spatial Variance Calculation

Applied Sciences, 2019
Poisson distributions have the characteristic of equality between their variance and mean values. By constructing a calculation model of the temporal variance and spatial variance, the relationship between the variance and mean values of lidar analog ...
Fei Gao, Xinxin Xu, Qingsong Zhu, Li Wang, Tingyao He, Longlong Wang, Samo Stanič, Dengxin Hua   +7 more
doaj   +1 more source

Ge-on-Si single-photon avalanche diode detectors: design, modeling, fabrication, and characterization at wavelengths 1310 and 1550 nm [PDF]

, 2013
The design, modeling, fabrication, and characterization of single-photon avalanche diode detectors with an epitaxial Ge absorption region grown directly on Si are presented.
Lever, LJM, Paul, D.J., Buller, GS, Ikonic, Zoran, Warburton, Ryan E, Ikonic, Z, Myronov, Maksym, Knights, AP, Leadley, D. R. (David R.), Gallacher, Kevin, Kelsall, Robert W., Pilgrim, Neil J, Pilgrim, NJ, Paul, DJ, Myronov, M., Paul, Douglas J. (Professor of Semiconductor Devices), Allred, P, Intermite, G., Leadley, David R, Huante-Ceron, E, Kelsall, RW, Lever, Leon J M, Pilgrim, Neil J., Kelsall, R.W., Allred, P., Myronov, M, Huante-Ceron, Edgar, Lever, Leon J. M., Lever, L.J.M., Leadley, D.R., Knights, A.P., Knights, Andrew P., Allred, Phil, Ikonic, Z., Huante-Ceron, E., Warburton, RE, Knights, Andrew P, Pilgrim, N.J., Buller, G.S., Intermite, G, Paul, Douglas J, Warburton, Ryan E., Leadley, DR, Intermite, Giuseppe, Gallacher, K, Warburton, R.E., Buller, G. S. (Gerald S.), Kelsall, Robert W, Buller, Gerald Stuart   +48 more
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Subcentimeter depth resolution using a single-photon counting time-of-flight laser ranging system at 1550 nm wavelength [PDF]

, 2007
We demonstrate subcentimeter depth profiling at a stand off distance of 330m using a time-of-flight approach based on time-correlated single-photon counting.
Nam, Sae Woo, Hernandez-Marin, Sergio, Wallace, A.M., Warburton, R.E., McCarthy, Aongus, Nam, S.W., Buller, G.S., Wallace, Andrew M., Warburton, Ryan E., Hadfield, Robert H., Hernandez-Marin, S., Hadfield, R., McCarthy, A., Buller, Gerald S.   +13 more
core   +1 more source

Fraunhofer Lidar Prototype in the Green Spectral Region for Atmospheric Boundary Layer Observations

Remote Sensing, 2013
A lidar detects atmospheric parameters by transmitting laser pulse to the atmosphere and receiving the backscattering signals from molecules and aerosol particles. Because of the small backscattering cross section, a lidar usually uses the high sensitive
Songhua Wu, Xiaoquan Song, Bingyi Liu
doaj   +1 more source

Single photon source characterization with a superconducting single photon detector [PDF]

, 2005
Superconducting single photon detectors (SSPD) based on nanopatterned niobium nitride wires offer single photon counting at fast rates, low jitter, and low dark counts, from visible wavelengths well into the infrared.
Mirin, R.P., Nam, S.W., Gruber, S.S., Miller, A.J., Stevens, M.J., Hadfield, R., Schwall, R.E.   +6 more
core   +1 more source

Photon-counting distributed free-space spectroscopy

Light: Science & Applications, 2021
A photon-counting distributed free-space spectroscopy is proposed and demonstrated using lidar technique. It is suitable for remote spectrum analysis with range resolution over wide band.
Saifen Yu, Zhen Zhang, Haiyun Xia, Xiankang Dou, Tengfei Wu, Yihua Hu, Manyi Li, Mingjia Shangguan, Tianwen Wei, Lijie Zhao, Lu Wang, Pu Jiang, Chengjun Zhang, Lixing You, Leigang Tao, Jiawei Qiu   +15 more
doaj   +1 more source