Metal Artifacts Reduction in Computed Tomography:A Bilateral Reprojection Approach

摘要：

Reducing artifacts owing to metallic objects inComputed Tomography (CT) is a challenging task. These metalinduced anisotropic streaks are both signal dependent anddifficult to distinguish from sharp edges. The method we proposeis based on a non-iterative reprojection-reconstructionframework. It first identifies metal regions and bilateral filteringis used to deal with the streak artifacts. Refined projection data isobtained by replacing metal traces with projections of thebilateral filtered image. Metal regions were superimposed backfor the final reconstruction. Experimental results demonstrate asignificant reduction in the metal artifacts while preserving theedges for the underlying object.

作者: Lin Cheng Jinfeng Liu

作者单位: Department of Engineering Trinity College Hartford, CT, USA

会议类型: 国际会议

会议名称: The 4th International Conference on Bioinformatics and Biomedical Engineering(第四届IEEE生物信息与生物医学工程国际会议 iCBBE 2010)

会议地点: 成都

会议语种:英文

页码: 1-4

在线出版日期: 2010-06-18（万方平台首次上网日期，不代表论文的发表时间）