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    • 1. 发明申请
    • METHOD AND SYSTEM FOR OUTLINING A REGION IN POSITRON EMISSION TOMOGRAPHY STUDIES
    • 用于排除位置排列测量研究中的一个地区的方法和系统
    • US20100135556A1
    • 2010-06-03
    • US12447270
    • 2007-10-25
    • Pasha RazifarAnna RingheimBengt LongstromHenry EnglerAnders Wall
    • Pasha RazifarAnna RingheimBengt LongstromHenry EnglerAnders Wall
    • G06K9/48G06T7/00
    • G06T7/12G06T2207/10104
    • In a method and system for outlining a region of interest in a Positron Emission Tomography (PET) scan study, a processor may, based on application of Masked Volume Wise Principal Component Analysis (MVW-PCA) to a plurality of scan images, generate a PC2 image showing kinetic behavior of a particular part of a subject, in particular, the grey matter of the cerebellar cortex of the subject, and may outline, in the PC2 image, a region of the PC2 image having highest pixel intensity values of the PC2 image or of a portion thereof as a region of interest, and, in particular, as a reference region. The processor may generate a PC3 image showing kinetic behavior of a different part of the subject, in particular, blood vessels of the subject, import the outline into the PC3 image to determine the correctness of the outline, and modify the outline if it is incorrect.
    • 在用于概括正电子发射断层扫描(PET)扫描研究中的感兴趣区域的方法和系统中,处理器可以基于对多个扫描图像应用蒙版卷智慧主成分分析(MVW-PCA),生成 显示受试者的特定部位,特别是受试者的小脑皮质的灰质的动力学行为的PC2图像,并且可以在PC2图像中概括具有PC2的最高像素强度值的PC2图像的区域 图像或其一部分作为感兴趣区域,特别是作为参考区域。 处理器可以产生显示受试者的不同部分(特别是受试者的血管)的动力学行为的PC3图像,将轮廓导入PC3图像以确定轮廓的正确性,并且如果轮廓不正确则修改轮廓 。
    • 2. 发明申请
    • IMAGE ANALYSIS
    • 图像分析
    • US20100260402A1
    • 2010-10-14
    • US12745739
    • 2008-12-03
    • Jan AxelssonAnna Ringheim
    • Jan AxelssonAnna Ringheim
    • G06K9/54G06T7/00
    • G06T5/008A61B6/037G06T5/002G06T11/008G06T2200/24G06T2207/10016G06T2207/10104G06T2207/30016G06T2211/412
    • Various embodiments of the invention relate to a system 100 and method 200 for image analysis. In particular, various embodiments of the invention relate to a system 100 and method 200 for extracting low-intensity features from an image data set comprising data corresponding to a sequence of original image frames 502, 504, 506, 508, 510. One such method 200 comprises determining 202 a plurality of principal components PC1, PC2, PC3, PC4, PC5, PC6 from the image data set corresponding to the original image frames, applying 204 a principal component analysis (PCA) filter to the plurality of principal components PC1, components PC2, PC3, PC4, PC5, PC6 to determine a filtered data set by discarding at least one principal component PC1 from the plurality of principal components PC1, PC2, PC3, PC4, PC5, PC6, and transforming 206 the filtered data set to create a plurality of filtered image frames 402, 404, 406, 408, 410 having enhanced low-intensity features.
    • 本发明的各种实施例涉及用于图像分析的系统100和方法200。 特别地,本发明的各种实施例涉及用于从包括对应于原始图像帧502,504,508,508的序列的数据的图像数据集中提取低强度特征的系统100和方法200。一种这样的方法 200包括从对应于原始图像帧的图像数据集中确定202多个主要分量PC1,PC2,PC3,PC4,PC5,PC6,将主成分分析(PCA)滤波器204应用于多个主成分PC1, 组件PC2,PC3,PC4,PC5,PC6,以通过从多个主要组件PC1,PC2,PC3,PC4,PC5,PC6中丢弃至少一个主要组件PC1来确定经过滤数据集,并将过滤后的数据集转换为 创建具有增强的低强度特征的多个滤波图像帧402,404,406,408,410。