基于机器视觉的大尺寸零部件三维尺寸测量方法及装置

CN121067715BActive Publication Date: 2026-07-17WUXI TUCHUANG INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUXI TUCHUANG INTELLIGENT TECH CO LTD
Filing Date
2025-09-03
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies struggle to simultaneously meet the demands for high efficiency and high precision in the three-dimensional measurement of large-sized parts, especially when dealing with complex curved surfaces and mixed-material production lines, which can easily lead to data gaps, loss of edge details, and amplified measurement errors.

Method used

By acquiring laser reflection signal intensity data from the surface of components, dynamically adjusting laser power and detector gain coefficient, optimizing scanning parameter configuration, acquiring raw point cloud data and analyzing density distribution characteristics, quantifying noise probability distribution, performing edge-preserving denoising processing, identifying key geometric features, performing region segmentation and least-squares plane fitting, and achieving dimensional measurement.

Benefits of technology

It significantly improves measurement accuracy and production efficiency, ensures data integrity and accuracy, reduces human error and costs, and provides technical support for the inspection of large-size parts and the digital transformation of the manufacturing industry.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及大尺寸零部件三维测量技术领域,公开了一种基于机器视觉的大尺寸零部件三维尺寸测量方法及装置,所述方法包括获取材质反射特性基准数据集和原始点云数据;根据所述基准数据集,自适应调整激光功率与增益,得到优化扫描参数;根据所述优化参数和原始点云,进行去噪、特征提取、区域分割和平面拟合,得到高精度几何尺寸结果。本发明能够在复杂材质与曲面的大尺寸零部件上实现高精度、高稳定且高效率的三维尺寸测量,显著优于传统方案。
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Citation Information

Patent Citations

  • Method and device for controlling power of laser in three-dimensional scanning system

    CN107819268A

  • Three-dimensional vision reconstruction method for cambered surface reflective workpiece

    CN114219893A