Scan angle selection and volume fusion for reducing metal artifacts by multiple X-ray CT scanning
Scan angle selection and volume fusion for reducing metal artifacts by multiple X-ray CT scanning
复制标题
通过多次 X 射线 CT 扫描减少金属伪影的扫描角度选择和体积融合
DOI：
10.1016/j.precisioneng.2021.07.020
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
Hiromasa Suzuki
中科院分区：
文献类型：
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作者：
Yingqi Tan;Yutaka Ohtake;Hiromasa Suzuki
本文提出了一种新的方法，以减少CT（计算机断层扫描）伪影，通过使用多个X射线CT扫描，其中CT数据融合与扫描角度组合的优化选择相结合。工业X射线CT已被广泛用于研究包括金属在内的工业零件，这些零件会引起各种CT伪影。这些CT伪影降低了X射线CT图像的质量，并妨碍了精确测量。我们的多X射线CT扫描方法的重点是CT伪影分布估计，其中包括扫描角度组合优化，多CT体积配准，CT体积融合。为了证明我们的方法，我们选择了多个最佳的扫描角度，并进行了工业零件，包括金属和树脂体融合。我们的方法有效地减少了CT伪影。我们的实验还表明，额外的扫描连续减少金属伪影在各个区域，这表明我们的扫描角度选择方法成功地选择了扫描角度的最佳组合。
This paper proposes a new method to reduce CT (computed tomography) artifacts by using multiple X-ray CT scanning in which CT data fusion is combined with optimized selection of a combination of scan angles. Industrial X-ray CT has been widely used for investigating industrial parts including metals, which cause various CT artifacts. These CT artifacts reduce the quality of X-ray CT images, and prevent precise measurements. Our multiple X-ray CT scanning approach focuses on CT artifacts distribution estimation, which including scan angle combination optimization, multiple CT volume registration, and CT volume fusion. To demonstrate our method, we selected multiple optimal scan angles and conducted volume fusion on industrial parts included metals and resins. Our approach effectively reduced CT artifacts. Our experiments also showed that additional scans successively reduced metal artifacts in various regions, suggesting that our scan angle selection method successfully selected an optimal combination of scan angles.