一种基于深度学习立体匹配的PCBA元件高度测量方法

By using a deep learning-based stereo matching method, combined with the ERH-Stereo stereo matching network and a binocular camera moving platform, the problems of low efficiency and insufficient accuracy in PCBA component height measurement are solved, achieving high-precision and fast component height measurement and meeting the design requirements of test fixtures.

CN119027479BActive Publication Date: 2026-07-17SOUTH CHINA UNIV OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Filing Date
2024-08-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies for measuring PCBA component height are inefficient and prone to errors, making it difficult to meet the design requirements of modular and flexible test fixtures.

Method used

A deep learning-based stereo matching method is adopted. By using the ECA attention mechanism, RAFT-Stereo and UHRNet high-resolution network ERH-Stereo stereo matching network structure, combined with the baseline distance and focal length parameters of the stereo camera, a two-degree-of-freedom stereo camera moving platform is designed to achieve high-precision component height measurement.

Benefits of technology

It improves the accuracy and efficiency of PCBA component height measurement, meeting the requirements of rapid, reliable, and reduced installation force deformation in test fixture design.

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Abstract

本发明公开了一种基于深度学习立体匹配的PCBA元件高度测量方法,包括采集PCBA对象获得左右RGB图像;设计ECA注意力机制+RAFT‑Stereo+UHRNet高分辨率网络的ERH‑Stereo立体匹配网络结构;通过正交实验设计选择双目相机基线距离B(mm)、镜头焦距f、物距D参数,以获得适合视场大小、元件高度测量最小平均误差。
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