摘要
针对柔性化功能测试中实装电路板(Printed Circuit Board Assembly,PCBA)元件高度测量传统方法操作不便、效率较低问题,提出一种基于ERH-Stereo立体匹配PCBA元件高度测量算法,由双目测距原理采集PCBA对象获得RGB图像,再由RAFT-Stereo加以ECA+UHRNet创新ERH-Stereo立体匹配网络结构获得PCBA高精度视差图,进而求得PCBA深度信息、元件高度。实验表明,ERH-Stereo在Scene Flow数据集上EPE、D1指标达到0.43%、5.1%,高度测量绝对误差均<1 mm,可以满足实际指导PCBA测试治具柔性化设计要求。
Aiming at the problems of inconvenience and low efficiency of the traditional method of measuring the height of Printed Circuit Board Assembly(PCBA)components in flexible functional testing,an algorithm based on ERH-Stereo STEREO matching PCBA component height measurement is proposed.PCBA objects are collected by binocular ranging principle to obtain RGB images,and then RAFT-Stereo and ECA+UHRNet innovative ERH-Stereo STEREO stereo matching network structure are used to obtain PCBA high-precision parallax map,and then PCBA depth information and component height are obtained.Experiments show that ERH-Stereo's EPE and D1 indexes on Scene Flow dataset reach 0.43%and 5.1%,and the absolute error of height measurement is less than 1mm,which can meet the requirements of flexible design of PCBA test fixture.
作者
张嘉龙
刘桂雄
周善龙
ZHANG Jialong;LIU Guixiong;ZHOU Shanlong(School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,China;Finetooling Technology(Guangzhou)Co.,Ltd.,Guangzhou 510700,China)
出处
《激光杂志》
北大核心
2025年第1期68-74,共7页
Laser Journal
基金
广东省重点领域研发计划项目(No.2019B010154003)。
作者简介
张嘉龙(2000-),硕士研究生,主要从事智能检测与仪器技术。E-mail:202221002175@mail.scut.edu.cn;通讯作者:刘桂雄(1968-),男,博士,教授,博士生导师,主要从事先进传感与仪器研究。E-mail:megxliu@scut.edu.cn。
