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截断奇异函数
相关语句
  truncated singularity function
     X-CT Image Reconstruction from Finite Angle Project Data Using Truncated Singularity Function Analysis
     X-CT有限角投影图像重建的截断奇异函数分析法
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  “截断奇异函数”译为未确定词的双语例句
     In this way, firstly characteristic parameters are extrac ted from X-CT finite angle project data,then some truncated singularity functi ons are constructed using those characteristic parameter,and finally X-CT image s are reconstructed by those truncated singularity functions. Thus non truncated artifacts X-CT image from finite angle project data can be gained.
     本文的方法是从采集到的X CT有限角截断投影数据中提取用于重建图像的特征信息 ,并用这些特征信息构造截断奇异函数 ,再由这些截断奇异函数的线性泛函来重构X CT图像 ,达到消除X CT有限角投影数据图像重建中的截断伪影之目的 .
短句来源
  相似匹配句对
     The cutting problem
     截断切割
短句来源
     X-CT Image Reconstruction from Finite Angle Project Data Using Truncated Singularity Function Analysis
     X-CT有限角投影图像重建的截断奇异函数分析法
短句来源
     Shear Cutting Mould
     截断切割模型
短句来源
     A Strictly Monotonic Continuous Singular Function
     严格单调连续奇异函数
短句来源
     Singularity Functional Method in Structural Analysis of High-Rise Buildings
     高层建筑结构分析的奇异函数方法
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In this paper,we propose a new edge finding technology to fit to MR images with truncation artifact.In our method,any truncation artifact digit signal can be expressed as the weighted sum of truncated singularity functions (TSF) relatea to the signal singularity locations,and the singularity locations and weight coefficients can be determined by this signal.Edges of MR images with truncation artifacts can be constructed by these singularity locations.False edges due to truncation artifacts can be removed using...

In this paper,we propose a new edge finding technology to fit to MR images with truncation artifact.In our method,any truncation artifact digit signal can be expressed as the weighted sum of truncated singularity functions (TSF) relatea to the signal singularity locations,and the singularity locations and weight coefficients can be determined by this signal.Edges of MR images with truncation artifacts can be constructed by these singularity locations.False edges due to truncation artifacts can be removed using this method.Experiment and simulation results show that this method gives much better performance than available method.

本文提出了一种适合于含有截断伪影磁共振图像 (磁共振截断频谱图像 )的边缘检测新算法 .本方法中 ,把任何有截断伪影的信号表示为以奇异点为参量的截断奇异函数的加权和 ,奇异点和加权系数由该信号决定 ,而计算出的奇异点就是图像的边缘 ,从而剔除了由截断伪影而引入的虚假边缘 .实际和仿真结果表明这种方法效果高于现有方法 .

In this paper,we present a new method on X-CT image reconstruction from finite angle projections data.In this way, firstly characteristic parameters are extrac ted from X-CT finite angle project data,then some truncated singularity functi ons are constructed using those characteristic parameter,and finally X-CT image s are reconstructed by those truncated singularity functions.Thus non truncated artifacts X-CT image from finite angle project data can be gained.Experimental and simulated results show that...

In this paper,we present a new method on X-CT image reconstruction from finite angle projections data.In this way, firstly characteristic parameters are extrac ted from X-CT finite angle project data,then some truncated singularity functi ons are constructed using those characteristic parameter,and finally X-CT image s are reconstructed by those truncated singularity functions.Thus non truncated artifacts X-CT image from finite angle project data can be gained.Experimental and simulated results show that this method gives much better reconstructed ima ge than available methods.

本文提出一种新的X CT截断投影数据图像重建方法 .本文的方法是从采集到的X CT有限角截断投影数据中提取用于重建图像的特征信息 ,并用这些特征信息构造截断奇异函数 ,再由这些截断奇异函数的线性泛函来重构X CT图像 ,达到消除X CT有限角投影数据图像重建中的截断伪影之目的 .实际和模拟结果都表明这种方法效果高于现有方法 .

We propose a new edge detection algorithm suited to MR images with truncation artifact. According to the singularity functions analysis (SFA) theory, any digit signal with truncation artifact can be expressed as the weighted sum of truncated singularity functions (TSF) related to the signal singularity locations, the singularity locations and weight coefficients are determined from this signal. Layer analysis method of edge detection is that weight truncated singularity function on singularity point is reduced...

We propose a new edge detection algorithm suited to MR images with truncation artifact. According to the singularity functions analysis (SFA) theory, any digit signal with truncation artifact can be expressed as the weighted sum of truncated singularity functions (TSF) related to the signal singularity locations, the singularity locations and weight coefficients are determined from this signal. Layer analysis method of edge detection is that weight truncated singularity function on singularity point is reduced from the signal with truncated artifacts layer by layer, and then the singularity points are detected layer by layer. Edges of MR images with truncation artifacts can be constructed by these singularity locations. False edges due to truncation artifacts can be removed using this method. Experiment and simulation results showed that this method gave much better performance than currenthy available method.

本文提出一种适合于含有截断伪影磁共振图像的边缘检测新算法。按奇异函数分析理论 ,把任何有截断伪影的信号表示为以奇异点为参量的截断奇异函数的加权和 ,奇异点和加权系数由该信号决定。层析边缘检测的关键在于一层层地剥去奇异点上的加权截断奇异函数 ,从而一层层地检测出奇异点。这些奇异点可以构成图像的边缘。本方法可以有效地剔除由截断伪影而引入的虚假边缘。实际和仿真结果都表明这种方法效果高于现有方法

 
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