强激光与粒子束2024，Vol.36Issue(1)：117-122,6.DOI:10.11884/HPLPB202436.230257
基于显微CT影像的靶丸表面缺陷检测方法
Surface defect detection method for capsule based on micro-CT image
摘要
Abstract
The distribution of defects on the inner and outer surfaces of the capsule has an important impact on the success rate and efficiency of the laser inertial confinement fusion experiment.At present,the only way to observe the inner surface is to use direct X-ray imaging technology to obtain local two-dimensional information,while this paper uses micro-CT to photograph the capsule to non-destructively obtain the full surface morphology information of its inner and outer surfaces.On this basis,a technique is proposed for the observation of defects on the inner and outer surfaces of the capsule.First,the defect area was segmented by edge detection and ideal surface fitting.Then the defects were divided into blocks by connected domain analysis,and the width and height of each area were calculated separately.In addition,a stereoscopic image of the capsule was interactively drawn using a volume rendering method,especially highlighting the colored height field in the defect areas and allowing the inner surface of the capsule to be observed by virtual cutting.This method can identify most surface defects,and can calculate the defect size parameters more accurately.Unidentified defects can be observed as a supplement through volume rendering,providing researchers with a good aid for analysis.关键词
三维分割/缺陷检测/ICF靶丸/显微CT/体绘制Key words
three-dimensional segmentation/defect detection/inertial confinement fusion capsule/micro-CT/volume rendering分类
物理学引用本文复制引用
汤玉玲,赵庆贤,刘家铭,罗守华..基于显微CT影像的靶丸表面缺陷检测方法[J].强激光与粒子束,2024,36(1):117-122,6.基金项目
国家自然科学基金项目(61871126) （61871126）
江苏省重点研发计划项目(BE2022828) （BE2022828）
