The hierarchical pairing method to estimate kinetic characteristics of fused silica exit surface damage particle ejection

Yangliang Li; Chao Shen; Yujun Zhang

doi:10.1117/12.2544554

18 December 2019 The hierarchical pairing method to estimate kinetic characteristics of fused silica exit surface damage particle ejection

Yangliang Li, Chao Shen, Yujun Zhang

Author Affiliations +

Proceedings Volume 11338, AOPC 2019: Optical Sensing and Imaging Technology; 113381S (2019) https://doi.org/10.1117/12.2544554
Event: Applied Optics and Photonics China (AOPC2019), 2019, Beijing, China

Abstract

The dual-probe time-resolved shadowgraphic microscopy system can observe the particle ejection phenomenon during laser-induced fused silica component damage, and the system can acquire two consecutive images with adjustable time intervals within one damage event. The paper presents a method for measuring speed and size automatically of the ejected particles utilizing the two consecutive images. The core work of automatic measurement method is particle detection and pairing by means of hierarchical pairing method, and estimates the instantaneous speed and size of the ejected particles. In hierarchical pairing method, the ideas of unimodal threshold segmentation, adaptive area thresholds and adaptive displacement thresholds are designed and applied. Experiments performed on experimental image pairs showed that the method is helpful to explore the kinetic properties of ejected particles.

Citation Download Citation

Yangliang Li, Chao Shen, and Yujun Zhang "The hierarchical pairing method to estimate kinetic characteristics of fused silica exit surface damage particle ejection", Proc. SPIE 11338, AOPC 2019: Optical Sensing and Imaging Technology, 113381S (18 December 2019); https://doi.org/10.1117/12.2544554

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available