多尺度信息融合的船舶外板检测三维标志点识别方法  

Recognition Method for 3D Mark Points for Ship Outer Panel Inspection of Multi-scale Information Fusion

作　　者：刘玉奇 黄博晓 李占 王英华 LIU Yuqi;HUANG Boxiao;LI Zhan;WANG Yinghua(Ship Quality and Reliability Research Center,China Shipbuilding Group Corporation Comprehensive Economic and Technological Research Institute,Beijing 100081,China)

机构地区：[1]中国船舶集团有限公司综合技术经济研究院船舶质量与可靠性研究中心,北京100081

出　　处：《计算机测量与控制》2024年第2期262-267,共6页Computer Measurement &Control

摘　　要：针对船舶外板开展数字化检测技术研究对提升船舶外板智能制造水平具有重要意义;为解决船舶外板检测参考点坐标获取问题,提出了一种识别三维标志点的方法,可在船舶外板数字化检测过程中为实测点云和模型点云的匹配提供参考坐标信息;该方法针对船舶外板结构特点和形面测量需求,设计三维标志点的几何结构;此外,结合三维标志点自身多种特征和周边结构差异化特征,将标志点多种尺度信息进行融合,实现对标志点的精准识别;最后通过标志点测量数据计算对应船舶外板上定位点的三维坐标;通过试验验证了所提出的方法在三维标志点识别方面具有准确性高、定位精准的优点,将大幅提升船舶外板数字化检测的效率。Aimed at digital inspection technologies,It is of great significance for ship outer panels to improve its intelligent manufacturing level.To solve the problem of obtaining the coordinates of reference points for ship outer panel detection,an identifying three-dimensional marker point method is proposed,which can provide reference coordinate information for the matching of measured point clouds and model point clouds in the digital detection process of ship outer panels.This method designs the geometric structure of three-dimensional marker points based on the structural characteristics and surface measurement requirements of ship outer panels.In addition,by combining the various features of 3D mark points themselves with the differentiated features of surrounding structures,the multi-scale information of mark points is fused to achieve the accurate recognition of mark points.Finally,the three-dimensional coordinates of the corresponding positioning points on the ship outer panel are calculated through the measurement data of the marker points.Through the experiments,it is verified that the proposed method has the advantages of high robustness,accurate positioning in 3D marker point recognition,which greatly improves the efficiency of digital detection of ship outer panels.

关 键 词：船舶外板 数字化检测 三维标志点 识别方法 形面测量 精准识别 

分 类 号：TP391.412[自动化与计算机技术—计算机应用技术]