查询词典 sinogram

The sinogram data used in the study was obtained from simulated phantom data.

研究中使用的正弦图数据来自模拟体模数据。

Radon transformation was used to change the artifact part to sine space, and then we obtained the sinogram.

然后用雷登变换把伪影图像变换至弦空间，即得到弦图。

Linear interpolation, non-linear interpolation and cubic spline interpolation were used to obtain corrected sinogram image.

然后用线性插值、非线性插值和三次样条插值来对伪影弦图进行处理，得到矫正的弦图。

Methods The CF iterative algorithm was applied to update the noisy detected emission sinogram data using the latest reconstructed image in the iterative process of PET reconstruction.

在PET重建的迭代过程中，此种负反馈迭代算法利用最近的一次重建图像来更新有噪声的探测到的发射正弦图数据。

An experimental study on the noise properties of x-ray CT sinogram data in Radon space.

低剂量CT断层成像的噪声抑制研究国家自然科学基金，2005-2007，课题负责人：卢虹冰，资助号：

A final image is reconstructed by the filtered back-projection from appropriately combination of original sinogram and artifacts-tissue sinogram.

最后，通过融合&伪组织&图像的sinogram和原始CT图像的sinogram，得到校正的sinogram并采用滤波反投影重建算法完成金属伪影的CT校正图像。

The normalized root mean square errors of input function using ICA in sinogram and image domain were 0.28 and 0.57, respectively.

在大鼠实验中，人工抽血及使用微量吸管抽取全血等手续皆会造成标准值的误差；我们会做多一些动物实验来降低此误差。

To develop a corrective method in which the distorted segments in sinogram are identified and interpolated using non distorted neighbor projections,to reduce distorted tomography metal artifacts caused by high-density objects.

建立了一套针对由金属伪影造成的CT图像质量退化的恢复算法。

A correction method for beam hardening, involving simple operations of the original polychrornatic projection sinogram, was presented based on the analysis of three physics properties implied by beam hardening. Its correction principle was deduced mathematically. A noise reduction method was proposed to suppress the noise enlarged by the harden correction by processing the high-frequency and the low-frequency components in the projection sinogram respectively.

在分析射束硬化现象具有的3个物理属性基础上，提出了一种对原始多色投影正弦图进行操作的硬化校正方法，并从数学上证明了其校正原理，针对该方法带来的噪声放大问题，研究了一种基于高、低频信息分类处理的噪声抑制方法。

Results In static phantom studies, the percent error of mean activity obtained by Carson's method was reduced to about 9 %, and it is less than that of image-derived method using maximum likelihood expectation maximization (about 14 %). In simulated dynamic phantom studies, the vessel component could be extracted using ICA in image and sinogram domain. In sinogram domain, the six components extracted by ICA could be obtained quickly.

在静态物理假体实验结果来看，使用Carson's method计算出感兴趣区域活性的百分比误差( 9%)比直接从影像取得活性的百分比误差( 14%)来得小；从数位模拟动态假体实验结果来看，独立成份分析法运用在影像空间或是弦波图空间上，都可以将血管分离出来，但从弦波图空间上得到各个独立成份相对於影像空间就快得多；imageICA和sinogramICA计算出的输入函数的标准化均方根误差分别是0.57和0.28。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐