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| Implementation of efficient image reconstruction for CT | |
| 作者姓名： | 刘杰 王光飞 |
| 作者单位： | Department of Biomedical Engineering，school of computer，Beijing Jiaotong University，Beijing 100044Received November 19，2004，Department of Biomedical Engineering，school of computer，Beijing Jiaotong University，Beijing 100044Received November 19，2004 |
| 摘 要： | Computer Tomography (CT) refers to the cross-sectional imaging of an object. When a series of rays pass through an object, the ray attenuation occurs. After projections are collected by many detectors on the side of the ob- ject, image reconstruction algorithm can be used to re- construct its two-dimensional (2D) cross-sectional image from its projection1]. The mathematical basis for tomog- raphy was inverse radon transform theory. The filtered back projection algorithm is widely used by al… |
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