The Review of Scatter Suppression Methods in Cone Beam CT
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摘要: 锥束CT严重的散射伪影极大地降低图像质量,成为限制其发展和应用的关键因素。国内外学者对散射抑制或校正方法已做了很多综述性的报道,但是随着锥束CT系统散射抑制研究的进一步推进,出现了一些新的技术。本文分析了X射线散射对CT成像的影响,对常用的散射抑制方法进行归纳总结,梳理散射校正框架,详细介绍基于投影补偿的散射校正技术和常用的散射估计方法,对目前散射校正的问题进行总结,重点讨论了散射校正对噪声的放大作用,为散射抑制的研究和发展提供借鉴作用。Abstract: Scatter artifacts in cone beam CT(CBCT) degrades image quality seriously, which limits the development and application of CBCT. Researchers have reviewed scatter suppression or correction methods at home and abroad. However, a few new technologies have appeared along with the advancement of scatter suppression methods. This paper analyses the effects of X-ray scattering to CT imaging and summarizes general scatter suppression methods. Also, the scatter correction framework is combed, in which the projection compensation technique and common scatter estimation methods are introduced particularly. Problems in scatter correction are concluded, in which the magnification of noises in scatter correction is emphasized. It provides use for reference to the research and development in scatter suppression.
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Keywords:
- cone beam CT /
- scatter suppression /
- projection compensation /
- scatter estimation /
- noises
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期刊类型引用(7)
1. 赵浩翔，赵晓杰，陈平，魏交统. 基于散射校正板和ADMM算法的锥束CT散射校正. CT理论与应用研究(中英文). 2025(02): 225-234 . 
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2. 罗雪莹. 锥束CT散射校正的平板探测研究. 福建电脑. 2024(05): 65-69 . 百度学术
3. 张文君，黄钢，丁海宁，徐红春. 基于深度学习的医用锥形束CT图像散射伪影校正的研究进展. CT理论与应用研究. 2023(02): 285-296 . 本站查看
4. 杨富强，杨瑶，李志翔，黄魁东. X射线工业CT成像过程复杂伪影抑制方法综述. 自动化学报. 2023(04): 687-704 . 百度学术
5. 左欣，乔日东，倪培君，付康，徐向群，齐子诚. 扫描电压及散射线校正对叶片工业CT三维成像边界提取的影响. 无损检测. 2021(02): 1-4+56 . 百度学术
6. 刘晓彤，王丙阳，戴宁，武立铭，王敬钊，胡全栋，李怀学. 激光选区熔化制备钛合金点阵材料无损表征. 航空制造技术. 2021(05): 24-29 . 百度学术
7. 唐天旭，段晓礁，周志政，吴琦. 基于散射校正板的锥束微纳CT系统的散射校正. 光学学报. 2019(08): 411-421 . 百度学术
其他类型引用(8)
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