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1. 发明申请

US20080267490A1 SYSTEM AND METHOD TO IMPROVE VISIBILITY OF AN OBJECT IN AN IMAGED SUBJECT 有权
标题翻译：系统和方法提高成像对象中对象的可视性
公开(公告)号：US20080267490A1
公开(公告)日：2008-10-30
申请号：US11740734
申请日：2007-04-26
申请人： Sebastien Gorges , Yves L. Trousset , Jeremie Pescatore , Vincent Bismuth , Marie-Odile Berger , Erwan Kerrien
发明人： Sebastien Gorges , Yves L. Trousset , Jeremie Pescatore , Vincent Bismuth , Marie-Odile Berger , Erwan Kerrien
IPC分类号： G06T17/00
CPC分类号： G06T19/00 , G06T15/503 , G06T2207/10121 , G06T2207/30021
摘要： A system to track movement of an object travelling through an imaged subject is provided. The system includes an imaging system to acquire a fluoroscopic image and operable to create a three-dimensional model of a region of interest of the imaged subject. A controller includes computer-readable program instructions representative of the steps of calculating a probability that an acquired image data is of the object on a per pixel basis in the fluoroscopic image, calculating a value of a blending coefficient per pixel of the fluoroscopic image dependent on the probability, adjusting the fluoroscopic image including multiplying the value of the blending coefficient with one of a greyscale value, a contrast value, and an intensity value for each pixel of the fluoroscopic image. The adjusted fluoroscopic image is combined with the three-dimensional model to create an output image illustrative of the object in spatial relation to the three-dimensional model.
摘要翻译：提供了跟踪穿过成像对象的物体的运动的系统。该系统包括用于获取透视图像并且可操作以创建被成像对象的感兴趣区域的三维模型的成像系统。控制器包括表示以下步骤的计算机可读程序指令：在荧光镜图像中以每像素为基础计算所获取的图像数据为对象的概率的步骤，计算依赖于荧光检查图像的透视图像的每像素的混合系数的值调整透视图像，包括将混合系数的值与透视图像的每个像素的灰度值，对比度值和强度值之一相乘。将经调整的透视图像与三维模型组合以创建说明与三维模型呈空间关系的对象的输出图像。

2. 发明授权

US07853061B2 System and method to improve visibility of an object in an imaged subject 有权
标题翻译：用于提高成像对象中的对象的可视性的系统和方法
公开(公告)号：US07853061B2
公开(公告)日：2010-12-14
申请号：US11740734
申请日：2007-04-26
申请人： Sebastien Gorges , Yves L. Trousset , Jeremie Pescatore , Vincent Bismuth , Marie-Odile Berger , Erwan Kerrien
发明人： Sebastien Gorges , Yves L. Trousset , Jeremie Pescatore , Vincent Bismuth , Marie-Odile Berger , Erwan Kerrien
IPC分类号： G06K9/00 , A61B6/02 , G21K4/00
CPC分类号： G06T19/00 , G06T15/503 , G06T2207/10121 , G06T2207/30021
摘要： A system to track movement of an object travelling through an imaged subject is provided. The system includes an imaging system to acquire a fluoroscopic image and operable to create a three-dimensional model of a region of interest of the imaged subject. A controller includes computer-readable program instructions representative of the steps of calculating a probability that an acquired image data is of the object on a per pixel basis in the fluoroscopic image, calculating a value of a blending coefficient per pixel of the fluoroscopic image dependent on the probability, adjusting the fluoroscopic image including multiplying the value of the blending coefficient with one of a greyscale value, a contrast value, and an intensity value for each pixel of the fluoroscopic image. The adjusted fluoroscopic image is combined with the three-dimensional model to create an output image illustrative of the object in spatial relation to the three-dimensional model.
摘要翻译：提供了跟踪穿过成像对象的物体的运动的系统。该系统包括用于获取透视图像并且可操作以创建被成像对象的感兴趣区域的三维模型的成像系统。控制器包括表示以下步骤的计算机可读程序指令：在荧光镜图像中以每像素为基础计算所获取的图像数据为对象的概率的步骤，计算依赖于荧光检查图像的透视图像的每像素的混合系数的值调整透视图像，包括将混合系数的值与透视图像的每个像素的灰度值，对比度值和强度值之一相乘。将经调整的透视图像与三维模型组合以创建说明与三维模型呈空间关系的对象的输出图像。

3. 发明授权

US5253171A Parallel processing method and apparatus based on the algebra reconstruction technique for reconstructing a three-dimensional computerized tomography (CT) image from cone beam projection data 失效
标题翻译：基于代数重建技术的并行处理方法和装置，用于从锥形束投影数据重建三维计算机断层摄影（CT）图像
公开(公告)号：US5253171A
公开(公告)日：1993-10-12
申请号：US586163
申请日：1990-09-21
申请人： Meng-Ling Hsiao , Wayne J. Eberhard , Yves L. Trousset
发明人： Meng-Ling Hsiao , Wayne J. Eberhard , Yves L. Trousset
IPC分类号： A61B6/03 , G06T1/00 , G06T11/00 , G06T15/08 , G06F15/00 , A61B6/00
CPC分类号： G06T11/006 , A61B6/027 , G06T2211/424
摘要： A parallel processing architecture and method, based on the 3D Algebra Reconstruction Technique (ART), for iteratively reconstructing from cone beam projection data a 3D voxel data set V representing an image of an object. The cone beam projection data is acquired by employing a cone beam x-ray source and a two-dimensional array detector to scan the object along a source scanning trajectory to obtain, at each of a plurality of discrete source positions .theta..sub.i on the source scanning trajectory, a 2D measured cone beam pixel data set P.sub.i. The 3D voxel data set V is subdivided into or organized as a plurality m of independent voxel subcubes V.sup.0 through V.sup.m-1 each containing a plurality of voxels. As a result of the subdivision of the 3D voxel data set V into voxel subcubes, the 2D measured cone beam pixel data set P.sub.i (measured projection data array) is correspondingly subdivided for each source position .theta..sub.i into projection data subsets, with overlapping regions between one or more adjacent projection data subsets corresponding to adjacent voxel subcubes. Each voxel subcube and its corresponding projection data strip or subset is processed in parallel with other pairs of voxel subcubes and corresponding projection data strips or subsets, without interference. A bi-level parallel-processor architecture is employed for iterative reproject and merge, and split and backproject operations.
摘要翻译：一种基于3D代数重建技术（ART）的并行处理架构和方法，用于从锥形束投影数据重复地重建表示对象的图像的3D体素数据集V. 通过使用锥形束x射线源和二维阵列检测器沿着源扫描轨迹扫描物体来获取锥形束投影数据，以在源扫描上的多个离散源位置θi中的每一个处得到轨迹，2D测量锥形束像素数据集Pi。 3D体元数据集V被细分为多个m个独立的体素子管V0至Vm-1，每个独立体素子管V0至Vm-1分别包含多个体素。作为将3D体素数据集V细分为体素子管的结果，将2D测量的锥形束像素数据集Pi（测量的投影数据阵列）对应于每个源位置θi分为投影数据子集，其间的重叠区域一个或多个相邻的投影数据子集对应于相邻的体素子束。每个体素子分支及其相应的投影数据条或子集与其他对体素体子束和相应的投影数据条或子集并行处理，无干扰。双级并行处理器架构用于迭代重新投影和合并，以及拆分和后处理操作。

4. 发明申请

US20090012390A1 SYSTEM AND METHOD TO IMPROVE ILLUSTRATION OF AN OBJECT WITH RESPECT TO AN IMAGED SUBJECT 审中-公开
标题翻译：相对于成像对象改进对象的系统和方法
公开(公告)号：US20090012390A1
公开(公告)日：2009-01-08
申请号：US11772350
申请日：2007-07-02
申请人： Jeremie Pescatore , Sebastien Gorges , Yves L. Trousset
发明人： Jeremie Pescatore , Sebastien Gorges , Yves L. Trousset
IPC分类号： A61B6/03
CPC分类号： A61B6/12 , A61B1/0005 , A61B1/042 , A61B5/055 , A61B6/463 , A61B6/466 , A61B6/5223 , A61B6/5235 , G06T7/0012 , G06T7/73 , G06T2200/08 , G06T2207/10121 , G06T2207/20036 , G06T2207/20221 , G06T2207/30021 , G06T2207/30101
摘要： A system to generate an image dependent on tracking movement of an object travelling through an imaged subject is provided. The system comprises a tracking system operable to detect a position or an orientation of the object travelling through the imaged subject, and an imaging system operable to create a three-dimensional model of a selected anatomical structure of the imaged subject. A controller is operable to store a plurality of computer-readable program instructions for execution by a processor, the plurality of program instructions representative of the steps of: calculating at least one two-dimensional view of a volume of interest extracted from the three-dimensional model, the volume of interest dependent relative to the tracked position of the object, and generating an output image illustrative of the at least one two-dimensional view of the volume of interest.
摘要翻译：提供了依赖于通过成像对象行进的对象的跟踪运动来生成图像的系统。该系统包括可操作以检测穿过被成像的对象的物体的位置或取向的跟踪系统，以及可操作以创建被成像的对象的所选解剖结构的三维模型的成像系统。控制器可操作地存储多个计算机可读程序指令以供处理器执行，所述多个程序指令表示以下步骤：计算从三维提取的感兴趣体积的至少一个二维视图模型，相对于对象的跟踪位置所依赖的感兴趣体积，以及生成说明该感兴趣体积的至少一个二维视图的输出图像。

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