Size characterization of x-ray tube source with sphere encoded imaging method

In x-ray imaging, the size of the x-ray tube light source significantly impacts image quality. However, existing methods for characterizing the size of the x-ray tube light source do not meet measurement requirements due to limitations in processing accuracy and mechanical precision. In this study,...

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Veröffentlicht in:Review of scientific instruments 2024-01, Vol.95 (1)
Hauptverfasser: Yu, Jian, Li, Dikai, Dai, Yanmeng, Zhang, Chunhui, Chen, Wei, Zhong, Jian, Wang, Xue, Xia, Runxiang, Cao, Leifeng, Zhou, Cangtao, Ruan, Shuangchen
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container_title Review of scientific instruments
container_volume 95
creator Yu, Jian
Li, Dikai
Dai, Yanmeng
Zhang, Chunhui
Chen, Wei
Zhong, Jian
Wang, Xue
Xia, Runxiang
Cao, Leifeng
Zhou, Cangtao
Ruan, Shuangchen
description In x-ray imaging, the size of the x-ray tube light source significantly impacts image quality. However, existing methods for characterizing the size of the x-ray tube light source do not meet measurement requirements due to limitations in processing accuracy and mechanical precision. In this study, we introduce a novel method for accurately characterizing the size of the x-ray tube light source using spherical encoded imaging technology. This method effectively mitigates blurring caused by system tilting, making system alignment and assembly more manageable. We employ the Richardson–Lucy algorithm to iteratively deconvolve the image and recover spatial information about the x-ray tube source. Unlike traditional coded imaging methods, spherical coded imaging employs high-Z material spheres as coding elements, replacing the coded holes used in traditional approaches. This innovation effectively mitigates blurring caused by system tilting, making system alignment and assembly more manageable. In addition, the mean square error is reduced to 0.008. Our results demonstrate that spherical encoded imaging technology accurately characterizes the size of the x-ray tube light source. This method holds significant promise for enhancing image quality in x-ray imaging.
doi_str_mv 10.1063/5.0180056
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subjects Algorithms
Alignment
Assembly
Blurring
Coding
Error reduction
Image enhancement
Image quality
Light sources
Spatial data
X ray imagery
X ray tubes
title Size characterization of x-ray tube source with sphere encoded imaging method
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