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- Based on the numerical analysis for filtered backprojection algorithm，introduces a method to improve the computational procedures involved in the backprojection. 摘要 对反投影的计算方法进行了改进，设计了一种能够提高反投影速度的方法。
- Traditional filtered backprojection(FBP) method required complete projection data,which were often difficult or even impossible to acquire for objective reasons. 传统的滤波反投影算法(FBP)要求完备的投影数据,而实际检测中往往由于客观原因无法获得完全的投影数据。
- One of the conventional reconstruction techniques of CT is the filtered backprojection method which has little complexity and high resolution, but has not locality properly. 摘要滤波反投影算法是经典的CT图像重建算法，它速度快，空间和密度分辨率好，但不具有局部性。
- Describes CT's operation principle, math model of images'reconstruction and Radon transform and reverse Radon transform, then proposes a fast FBP based on researching of the standard filtered backprojection reconstruction algorithm. 介绍了CT的工作原理、CT的发展过程、投影重建图像的数学模型和二维Radon变换及其逆变换,然后在深入研究传统的标准滤波反投影(FBP)基础上,提出了一种改进的滤波反投影重建算法。 这种新算法主要通过减少投影数量然后重建子图象来实现。
- The method of filter backprojection is one of the popular algorithms of image reconstruction now.The speed of the method is rapid and its image is nice. 滤波反投影算法是目前比较常用的CT图像重建算法，它速度快，图像质量好。
- space-variant filtered backprojection algorithm 空间可变滤波反投影重建算法
- Filtered backprojection algorithm 滤波反投影
- All drinking water must be filtered. 饮用水均须过滤净化。
- Filtered water is piped into the buildings. 过滤后的水通过管道输入大楼。
- Sunlight filtered through the drawn shades. 阳光从拉下的窗帘里透了进来。
- The sunlight filtered through the curtains. 阳光透过窗帘映了进来。
- Keywords Industrial CT;Signal processing;Image reconstruction;Algebraic reconstruction technique;Filtered backprojection method; 工业CT;信号处理;图像重建;代数重建法;滤波反投影法;
- Keywords cone beam computed tomography;cone beam reconstruction;analytic algorithms;filtered backprojection algorithms.; 锥形束断层成像;锥形束重构;解析算法;滤波反投影算法;
- Sunlight filtered through the leaves. 阳光透过了树叶。
- News of the defeat filtered through. 失败的消息走漏了出来。
- You need to filter the drinking water. 你需要把饮用水过滤。
- A filter traps dust from the air. 过滤网可存住空气中的尘埃。
- The news of the defeat started to filter through. 战败的消息开始传出来。
- It won't take long to filter the coffee. 用不了多少时间就可以把咖啡过滤好。
- I took this picture with a red filter. 这张照片我是用红色滤光镜拍摄的。
