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公开(公告)号:US20060143215A1
公开(公告)日:2006-06-29
申请号:US10545655
申请日:2004-02-17
申请人: Roel Truyen , Iwo Serlie , Steven Lobregt
发明人: Roel Truyen , Iwo Serlie , Steven Lobregt
CPC分类号: G06T11/008
摘要: A method of constructing an object data set of data elements representing a physical property is described, in which the construction of the object data set includes assigning attributes to respective data elements. Such attributes are used, for example, in volume rendering. The construction of the object data set is achieved in such a way that the relative contributions of the physical property to the values of the respective data elements are derived on the basis of the relative contributions of the physical property to the data values of the data elements. These contributions are calculated by modeling transition changes in the image using a plot of grey value and gradient magnitude. Sampling of data points along the maximum gradient allows identification of the ranges of the physical property contributing to the selected voxel and calculation of the relative amounts.
摘要翻译: 描述了构成表示物理属性的数据元素的对象数据集的方法,其中对象数据集的构造包括将属性分配给各个数据元素。 例如,在体绘制中使用这样的属性。 以如下方式实现对象数据集的构造:使物理属性相对于相应数据元素的值的相对贡献基于物理属性对数据元素的数据值的相对贡献而导出 。 这些贡献通过使用灰度值和梯度大小的图来对图像中的转变变化进行建模来计算。 沿着最大梯度采样数据点允许识别对所选体素有贡献的物理属性的范围和相对量的计算。
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公开(公告)号:US20060222219A1
公开(公告)日:2006-10-05
申请号:US10545654
申请日:2004-02-18
申请人: Roel Truyen , Steven Lobregt , Iwo Serlie
发明人: Roel Truyen , Steven Lobregt , Iwo Serlie
IPC分类号: G06K9/00
CPC分类号: G06T11/008
摘要: A method is presented to calculate the relative contribution of different tissues, or tissue mix, to at least one data element in a medical object data set, the medical object data set containing data elements, the data elements assigning data values to respective positions in a multi-dimensional geometrical space containing more than one tissue, by means by which parameters are calculated for the at least one data element, the parameters being dependent on the data value of the at least one data element and data values of surrounding data elements in the neighborhood of the at least one data element, the parameters being further compared to combinations of said parameters for data elements occurring in the region of boundaries between tissues.
摘要翻译: 提出了一种用于计算不同组织或组织混合物对医疗对象数据集中的至少一个数据元素的相对贡献的方法,包含数据元素的医疗对象数据集,将数据值分配给各个位置的数据元素 通过对至少一个数据元素计算参数的方式,包含多于一个组织的多维几何空间,参数取决于至少一个数据元素的数据值,以及在该数据元素中的周围数据元素的数据值 所述参数进一步与在组织之间的边界区域中出现的数据元素的所述参数的组合进行比较。
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