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http://dx.doi.org/10.9766/KIMST.2020.23.6.609

A Study on Image Resolution Increase According to Sequential Apply Detector Motion Method and Non-Blind Deconvolution for Nondestructive Inspection  

Soh, KyoungJae (The 4th Research and Development Institute, Agency for Defense Development)
Kim, ByungSoo (The 4th Research and Development Institute, Agency for Defense Development)
Uhm, Wonyoung (The 4th Research and Development Institute, Agency for Defense Development)
Lee, Deahee (The 4th Research and Development Institute, Agency for Defense Development)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.23, no.6, 2020 , pp. 609-617 More about this Journal
Abstract
Non-destructive inspection using X-rays is used as a method to check the inside of products. In order to accurately inspect, a X-ray image requires a higher spatial resolution. However, the reduction in pixel size of the X-ray detector, which determines the spatial resolution, is time-consuming and expensive. In this regard, a DMM has been proposed to obtain an improved spatial resolution using the same X-ray detector. However, this has a limitation that the motion blur phenomenon, which is a decrease in spatial resolution. In this paper, motion blur was removed by applying Non-Blind Deconvolution to the DMM image, and the increase in spatial resolution was confirmed. DMM and Non-Blind Deconvolution were sequentially applied to X-ray images, confirming 62 % MTF value by an additional 29 % over 33 % of DMM only. In addition, SSIM and PSNR were compared to confirm the similarity to the 1/2 pixel detector image through 0.68 and 33.21 dB, respectively.
Keywords
X-ray; Detector Motion Method; Non-Blind Deconvolution; Spatial Resolution; Modulation Transfer Function;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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