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发明授权
CN105528766B CT金属伪影处理方法和装置 有权

CT金属伪影处理方法和装置
摘要：
本发明公开了一种CT金属伪影处理方法和装置。该方法可包括：对包含金属伪影的原始图像进行去除金属伪影数据的第一金属伪影处理，得到第一处理图像COR1，并提取所述第一处理图像COR1的高频部分作为第一高频图像COR1HF；对原始图像进行去除金属伪影的第二金属伪影处理，得到第二处理图像COR2，并提取所述第二处理图像COR2的高频部分作为第二高频图像COR2HF；将所述第一处理图像COR1、第一高频图像COR1HF以及第二高频图像COR2HF用基于金属物图像确定的权重函数W进行加权组合，得到不包含金属伪影但保留了金属物附近区域信息的图像CORImp。
摘要（英）：

A method for processing metal artifacts in a CT image is provided. The method may comprise: performing a first metal artifact processing on the original image to obtain a first processed image COR1 and extracting the high frequency portion of the first processed image COR1 to obtain a first high-frequency image COR1HF; performing a second metal artifact processing on the original image to obtain a second processed image COR2 and extracting the high frequency portion of the processed image COR2 second to obtain a second high-frequency image COR2HF; perform a weighted combination the first processed image COR1, the first high-frequency image COR1HF and the second high-frequency image COR2HF by using a weighting function W to obtain a result image CORImp containing no metal artifact, but information of area near the metal artifact.

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