China Mechanical Engineering ›› 2026, Vol. 37 ›› Issue (5): 1210-1217.DOI: 10.3969/j.issn.1004-132X.2026.05.021

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Underwater Target 3D Reconstruction Method Based on AUV Equipped with Monocular-Line Laser

YANG Yongjun(), YANG Renyou(), LI Yufeng, QIN Hao   

  1. Southern Marine Science and Engineering Guangdong Laboratory(Zhanjiang),Zhanjiang,Guangdong,524000
  • Received:2025-07-10 Online:2026-05-25 Published:2026-06-09
  • Contact: YANG Renyou

基于自主水下航行器搭载单目-线激光器的水下目标三维重建方法

杨永俊(), 杨仁友(), 李俞锋, 秦浩   

  1. 南方海洋科学与工程广东省实验室(湛江), 湛江, 524000
  • 通讯作者: 杨仁友
  • 作者简介:杨永俊,男,1998年生,科研助理。研究方向为水下机器人、三维重建、视觉SLAM。E-mail:1515813841@qq.com
    杨仁友*(通信作者),男,1980年生,研究员级高级工程师。研究方向为海洋牧场智慧渔业、人工智能、水下机器人等。E-mail:youngrenyou@zjblab.com
  • 基金资助:
    广东省海洋经济发展(海洋六大产业)专项资金(粤自然资合[2024]18号)

Abstract:

The underwater targets were scanned and 3D reconstructed based on the autonomous underwater vehicle(AUV) platform equipped with a monocular camera and a line laser sensor. Aiming at the difficulty of extracting stripe coordinates in underwater laser images, an adaptive method was proposed for extracting laser stripe coordinates in the HSV space, and the 3D spatial coordinates of the target point were calculated by combining the laser triangulation model and the camera inverse projection matrix. Further, the AUV pose information was utilized to stitch multiple frames of point clouds, achieving the reconstruction of the complete 3D structure of the target object. By constructing the described algorithm framework described, AUV experiments were conducted to verify the feasibility of the method and the effectiveness of point cloud reconstruction under the pool environment.

Key words: stripe coordinate extraction, triangulation, inverse projection, 3D reconstruction

摘要:

基于自主水下航行器(AUV)平台搭载单目相机与线激光传感器对水下目标进行扫描与三维重建。针对水下激光图像中条纹坐标提取困难等问题,提出了一种自适应HSV空间下的激光条纹坐标提取方法,并结合激光三角测距模型与相机反投影矩阵计算目标点的三维空间坐标。进一步利用AUV位姿信息对多帧点云进行拼接,实现对目标物体完整三维结构的重建。通过构建所述算法框架,在水池环境下开展了AUV试验,验证了该方法的可行性与点云重建的有效性。

关键词: 条纹坐标提取, 三角测距, 反投影, 三维重建

CLC Number: