基于线阵扫描的有限角度投影数据的CT三维重建

详细信息

Limited Angle Computed Tomography Recontruction Algorithm Based on Line Scanning

摘要: 通过对最小化图像总变差的优化准则的迭代重建算法的三维扩展，实现了基于GPU(图形处理器)技术的有限角度投影数据的三维重建算法；在此基础上，通过改变扫描方式，实现了线阵探测器的有限角度投影数据的CT三维重建。试验表明：该方法可有效实现基于线阵扫描的有限角度投影数据的三维重建，是面阵列探测器有限角度投影数据CT三维重建的有力补充。
- 线阵扫描 /
- 有限角度 /
- CT三维重建 /
- GPU
Abstract: This article is to show, based on the GPU technology, how to realize limited angle projection data 3D reconstruction algorithm through the minimization of total variation image optimization criterion of iterative reconstruction algorithm for three-dimensional expansion. On the basis of this and by changing the scanning mode, the linear array detector limited angle projection data CT three-dimensional reconstruction is realized. Experiments show that the method can effectively realize the limited angle projection data reconstruction based on line scanning, and is a powerful supplement of limited angle projection data CT three-dimensional reconstruction by the surface array detector.
- Line scanning /
- Limited angle /
- CT three-dimensional reconstruction /
- GPU

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