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1.发明申请公开(公告)号：US20070003118A1
公开(公告)日：2007-01-04
申请号：US11172657
申请日：2005-06-30
CPC分类号： G06T7/0012 , G06T7/001 , G06T7/38 , G06T2207/30004
摘要： A technique is provided for comparative image analysis and/or change detection using computer assisted detection and/or diagnosis (CAD) algorithms. The technique includes registering a three-dimensional image and a two-dimensional image, projecting the registered three-dimensional image to generate a reprojected two-dimensional image, and automatically comparing the two-dimensional image and the reprojected two-dimensional image.
摘要翻译： 提供了一种用于使用计算机辅助检测和/或诊断（CAD）算法的比较图像分析和/或变化检测的技术。 该技术包括登记三维图像和二维图像，投影登记的三维图像以生成重新投影的二维图像，并且自动比较二维图像和重新投影的二维图像。
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公开(公告)号：US20050226375A1
公开(公告)日：2005-10-13
申请号：US10813759
申请日：2004-03-31
CPC分类号： A61B6/502 , A61B6/027 , A61B6/4007 , A61B6/4035 , A61B6/482 , A61B6/584 , G06F19/00 , Y10S378/901
摘要： Techniques are provided for generating three-dimensional images, such as may be used in mammography. In accordance with these techniques, projection images of an object of interest are acquired from different locations, such as by moving an X-ray source along an arbitrary imaging trajectory between emissions or by individually activating different X-ray sources located at different locations relative to the object of interest. The projection images may be reconstructed to generate a three-dimensional dataset representative of the object from which one or more volumes may be selected for visualization and display. Additional processing steps may occur throughout the image chain, such as for pre-processing the projection images or post-processing the three-dimensional dataset.
摘要翻译： 提供了用于产生三维图像的技术，例如可用于乳房X线照相术。 根据这些技术，例如通过沿着发射之间的任意成像轨迹移动X射线源或通过单独激活位于相对于不同位置的不同位置处的不同X射线源，从不同位置获取感兴趣对象的投影图像 感兴趣的对象。 可以重建投影图像以生成代表对象的三维数据集，从该对象可以选择一个或多个卷来进行可视化和显示。 在整个图像链中可能发生附加处理步骤，例如用于预处理投影图像或对3D维数据集进行后处理。
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公开(公告)号：US20110293200A9
公开(公告)日：2011-12-01
申请号：US11805369
申请日：2007-05-23
IPC分类号： G06K9/54
CPC分类号： G06T11/006
摘要： A technique is provided for generating quantitative projection images from projection images. The pixels of the quantitative projection images correspond to quantitative composition estimates of two or more materials. The quantitative projection images are reconstructed to generate a quantitative volume in which each voxel value corresponds quantitatively to the two or more materials or a mixture of the two or more materials.
摘要翻译： 提供了一种用于从投影图像生成定量投影图像的技术。 定量投影图像的像素对应于两种或更多种材料的定量组成估计。 重建定量投影图像以产生定量体积，其中每个体素值定量对应于两种或更多种材料或两种或更多种材料的混合物。
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公开(公告)号：US20050135558A1
公开(公告)日：2005-06-23
申请号：US10745315
申请日：2003-12-22
CPC分类号： A61B6/504 , A61B6/02 , A61B6/481 , G06T11/006 , G06T2211/436
摘要： A technique is provided for generating a three-dimensional image from fluoroscopic projection images. The technique allows for the acquisition of fluoroscopic images at different perspectives relative to a region of interest. One or more three-dimensional images may then be reconstructed from the fluoroscopic projection images. The three-dimensional images may then be displayed to provide anatomic context for the fluoroscopic application. A fluoroscopic projection image, such as the most current fluoroscopic image, may be superimposed on the three-dimensional image if desired.
摘要翻译： 提供了一种用于从透视投影图像生成三维图像的技术。 该技术允许相对于感兴趣的区域以不同的观点获取荧光透视图像。 然后可以从透视投影图像重建一个或多个三维图像。 然后可以显示三维图像以提供荧光镜应用的解剖背景。 如果需要，诸如最新的透视图像的透视投影图像可以叠加在三维图像上。
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公开(公告)号：US20050135555A1
公开(公告)日：2005-06-23
申请号：US10744034
申请日：2003-12-23
CPC分类号： A61B6/025 , A61B6/4021 , A61B6/463 , G06T11/008 , G06T2211/436
摘要： A technique is provided for concurrently viewing volumes that may be rendered using visualization techniques incorporating one or more functions, such as depth-dependent weighting functions. In one aspect, the viewing technique may provide for the concurrent viewing of volumes, such as overlapping volumes, from different viewpoints. In accordance with this aspect, the relative position of display may convey the relative viewpoints. In addition, the viewing technique may provide for concurrently displaying volume renderings of a volume in which the volume renderings are generated using different functions, such as weighting and/or transfer functions. In this manner, the effect of the functions on visual properties of structures within the volume may be observed.
摘要翻译： 提供了一种技术，用于同时观看可以使用结合一个或多个功能（例如深度相关加权函数）的可视化技术呈现的体积。 在一个方面，观看技术可以提供从不同观点同时观看体积，例如重叠体积。 根据这个方面，显示器的相对位置可以传达相对的观点。 此外，观看技术可以提供使用诸如加权和/或传递功能的不同功能同时显示其中生成体积渲染的卷的体积渲染。 以这种方式，可以观察到功能对体积内的结构的视觉特性的影响。
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