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Alternative TitleVisual Measurement Method of Gap Width of Split Type Ammunition Based on Improved Ostu-Sobel
孟向臻1; 姜春英1; 丁美杰1; 徐永利2; 徐志刚2
Source Publication火炮发射与控制学报
Contribution Rank2
Funding Organization辽宁省自然科学基金(2019-KF-01-11)
Keyword模式识别与智能系统 Otsu-Sobel 缝宽测量 最小二乘拟合 离散度


Other Abstract

In the quality inspection of split-type shell products, the high-precision stability measurement of the clearance at the thread joint is one of the important indexes to ensure the quality of the shell. In order to accurately measure the gap at the threaded joint, a visual measurement method of slit width of split shell based on improved Otsu-Sobel was proposed by using machine vision. The method generates adaptive regions of interest according to image features, then determines the rough location interval of the gap edge through monotone processing and the Sobel operator before using the degree of discretization of the image gradient to accurately locate the gap edge locally. In order to minimize the influence of mechanical installation, seam width chamfering and other factors on accuracy, the least square fitting method is used to optimize the measurement results. The experimental results show that the method can accurately detect a seam width in the range of 0.1~0.7mm, and the measurement error is less than 0.02mm.This method solves the technical problem of accurately measuring the gap at thread joints of split shells and can meet the need of product quality inspection.

Document Type期刊论文
Corresponding Author姜春英
Recommended Citation
GB/T 7714
孟向臻,姜春英,丁美杰,等. 基于改进Otsu-Sobel的分体式炮弹缝宽视觉测量方法研究[J]. 火炮发射与控制学报,2021:1-6.
APA 孟向臻,姜春英,丁美杰,徐永利,&徐志刚.(2021).基于改进Otsu-Sobel的分体式炮弹缝宽视觉测量方法研究.火炮发射与控制学报,1-6.
MLA 孟向臻,et al."基于改进Otsu-Sobel的分体式炮弹缝宽视觉测量方法研究".火炮发射与控制学报 (2021):1-6.
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