摘要
飞机积冰严重危害飞行安全。分析云中过冷液滴的微物理特性是研究飞机积冰的有效方式。针对高分辨率粒子成像仪拍摄的不同类别云中粒子,提出了一种过冷液滴识别方法。应用数字图像处理技术提取粒子形状轮廓,提出了利用傅里叶描述子来构建粒子形状特征向量的方法,并进行了实验对比分析,所组成的傅里叶描述子特征向量可以直接为过冷液滴识别所用,对过冷液滴的识别具有重要的应用价值。
Aircraft icing seriously endangers flight safety.Analyzing the Microphysical Characteristics of supercooled droplets is an effective way to study aircraft icing.Aiming at different types of cloud particles captured by a high-resolution particle imager,a method for identifying supercooled droplets was proposed.Applying digital image processing technology to extract particle shape contour,a method using Fourier descriptors was proposed to construct particle shape feature vectors,and experimental comparison and analysis are carried out.The Fourier descriptors can be directly used in the recognition process,which has important application value for the recognition of supercooled droplets.
作者
王楠
焦瑞莉
黄敏松
WANG Nan;JIAO Ruili;HUANG Minsong(School of Information and Communication Engineering,Beijing Information Science&Technology University,Beijing 100085,China;Key Laboratory of Cloud-Precipitation Physics and Severe Storms,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China)
出处
《北京信息科技大学学报（自然科学版）》
2021年第3期34-39,共6页
Journal of Beijing Information Science and Technology University
基金
国家自然科学基金资助项目(41775166,41705142)
北京信息科技大学其他纵向项目(20190091)。
关键词
过冷液滴识别
数字图像处理
傅里叶描述子
recognition of supercooled droplets
digital image processing
Fourier descriptor
