Reconstruction method of 128 × 256 array single photon Lidar based on multi-domain stability feature fusion

IF 4.6 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2024-10-17 DOI:10.1016/j.optlastec.2024.111970

Le Ma , Jianfeng Sun , Xianhui Yang , Jie Lu , Wei Lu , Xin Zhou , Hongchao Ni

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引用次数: 0

Abstract

Under low-light conditions, random light distribution and non-uniform pixel sensitivity reduce both the correlation and differences among pixels, while unstable intensity information significantly impairs the detection capability of Geiger-mode avalanche photodiode (GM-APD) arrays. To address these challenges, a method based on multi-domain stability feature fusion is proposed. This approach utilizes a distance layer decomposition model to break down the global problem into localized sub-problems, effectively suppressing background noise through the fusion of stable features. Additionally, the Multi-scale Algorithm (MSA) was enhanced to selectively recover missing pixels and improve target reconstruction while preserving details. In imaging experiments conducted on targets under low-light conditions at night within remote, complex scenes, when the photon number was 0.0068 per pixel, the proposed method improved the Peak Signal-to-Noise Ratio (PSNR) of the reconstructed images by more than 12 dB compared with the Non-local MSA. It significantly promotes the development of GM-APD lidar for all-time applications.

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基于多域稳定性特征融合的 128 × 256 阵列单光子激光雷达重建方法

在弱光条件下，随机光分布和不均匀的像素灵敏度会降低像素间的相关性和差异，而不稳定的强度信息会严重影响盖革模式雪崩光电二极管阵列（GM-APD）的检测能力。为了应对这些挑战，我们提出了一种基于多域稳定性特征融合的方法。该方法利用距离层分解模型将全局问题分解为局部子问题，通过融合稳定特征有效抑制背景噪声。此外，还增强了多尺度算法（MSA），以有选择性地恢复缺失像素，在保留细节的同时改进目标重建。在对夜间低照度条件下偏远复杂场景中的目标进行的成像实验中，当每个像素的光子数为 0.0068 时，与非局部 MSA 相比，提出的方法将重建图像的峰值信噪比（PSNR）提高了 12 dB 以上。这极大地促进了全时应用的 GM-APD 激光雷达的发展。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems