학술논문
Automatic analysis of images from the THz TDS reflection scanner
Document Type
Conference
Author
Source
2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2023 48th International Conference on. :1-2 Sep, 2023
Subject
Language
ISSN
2162-2035
Abstract
We present a method for automatic detection of defects in glass fibre reinforced polymer (GFRP) based on a terahertz time-domain spectroscopy (TDS) system. A GFRP sample with round inclusions of different sizes were measured by means of a TDS reflective scanner. The algorithm acquired a series of C-scans, which were then pre-selected to identify only those images with features potentially associated with defects. A thresholding method based on Gaussian fit to histogram was developed. The results showed that 87% of defects were detected.