顺序双模融合水下单光子激光雷达成像算法

IF 2.7 3区 地球科学 Q1 ENGINEERING, MARINE Journal of Marine Science and Engineering Pub Date : 2024-09-09 DOI:10.3390/jmse12091595
Tian Rong, Yuhang Wang, Qiguang Zhu, Chenxu Wang, Yanchao Zhang, Jianfeng Li, Zhiquan Zhou, Qinghua Luo
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引用次数: 0

摘要

针对浅海水域潜标等小型目标的远距离、高分辨率成像探测需求,开展了单光子激光雷达成像技术研究。本文报告了顺序双模融合成像算法,该算法具有较强的信息提取能力,可从复杂信号光子数中重建场景目标深度和反射强度图像。该算法由数据预处理、超大群值估计、噪声筛分和总变化平滑约束四个步骤组成,可对目标进行高质量成像。仿真和测试结果表明,该方法的成像性能和成像特性均优于目前高性能的第一光子群成像算法,说明该方法在稀疏光子计数成像方面具有很大优势,即使在 50828 Lux 环境强光和强干扰、0.1 Lux 低照度环境或水下高衰减环境下,本文提出的方法也能构建清晰的目标场景深度和反射强度图像。
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Sequential Two-Mode Fusion Underwater Single-Photon Lidar Imaging Algorithm
Aiming at the demand for long-range and high-resolution imaging detection of small targets such as submerged submarine markers in shallow coastal waters, research on single-photon lidar imaging technology is carried out. This paper reports the sequential two-mode fusion imaging algorithm, which has a strong information extraction capability and can reconstruct scene target depth and reflection intensity images from complex signal photon counts. The algorithm consists of four steps: data preprocessing, extremely large group value estimation, noise sieving, and total variation smoothing constraints to image the target with high quality. Simulation and test results show that the imaging performance and imaging characteristics of the method are better than the current high-performance first-photon group imaging algorithm, indicating that the method has a great advantage in sparse photon counting imaging, and the method proposed in this paper constructs a clear depth and reflectance intensity image of the target scene, even in the 50,828 Lux ambient strong light and strong interference, the 0.1 Lux low-light environment, or the underwater high-attenuation environment.
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来源期刊
Journal of Marine Science and Engineering
Journal of Marine Science and Engineering Engineering-Ocean Engineering
CiteScore
4.40
自引率
20.70%
发文量
1640
审稿时长
18.09 days
期刊介绍: Journal of Marine Science and Engineering (JMSE; ISSN 2077-1312) is an international, peer-reviewed open access journal which provides an advanced forum for studies related to marine science and engineering. It publishes reviews, research papers and communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Electronic files and software regarding the full details of the calculation or experimental procedure, if unable to be published in a normal way, can be deposited as supplementary electronic material.
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