公开(公告)号：US20090136112A1

公开(公告)日：2009-05-28

申请号：US12267632

申请日：2008-11-10

申请人： Vincent BISMUTH ,  Vincent Auvray ,  Regis Vaillant ,  Jean Lienard

发明人： Vincent BISMUTH ,  Vincent Auvray ,  Regis Vaillant ,  Jean Lienard

IPC分类号： G06K9/40

CPC分类号： G06T5/002 ,  G06T2207/10116 ,  G06T2207/20064 ,  G06T2207/20182 ,  G06T2207/20221

摘要： A method for the processing of images in interventional radioscopy to produce a sequence of de-noised images in which elongated objects of guiding instrumentation equipment are preserved and enhanced. The method of the invention uses a tool for indicating the confidence to be placed in a given pixel as regards its belonging to a piece of guidance equipment. This tool is used to create a combination algorithm capable of re-injecting the pixels having a low contrast-to-noise ratio into the de-noised image. This combination algorithm enables the enhancement solely of the pixels of the guidance equipment with a high confidence value so as not to produce artifacts with the enhancement of false positives.

摘要翻译： 一种用于在介入式放射检查中处理图像以产生一系列去噪图像的方法，其中保存和增强了引导仪器设备的细长物体。 本发明的方法使用工具来表示将其置于给定像素中的置信度，就其属于一块引导设备而言。 该工具用于创建能够将具有低对比度噪声比的像素重新注入到去噪图像中的组合算法。 该组合算法使得能够仅利用高置信度的引导设备的像素进行增强，从而不会随着误报的增强而产生伪像。

公开(公告)号：US20090022376A1

公开(公告)日：2009-01-22

申请号：US12139579

申请日：2008-06-16

申请人： Vincent Bismuth ,  Vincent Auvray ,  Jean Lienard ,  Regis Vaillant

发明人： Vincent Bismuth ,  Vincent Auvray ,  Jean Lienard ,  Regis Vaillant

IPC分类号： G06K9/00

CPC分类号： G06T5/20 ,  G06K9/4609 ,  G06K2209/057

摘要： A method for processing images in interventional radioscopy for detecting guiding instrumentation equipment. The method of the invention enables objects of longilinear or very curved shapes to be detected within the radioscopic image having very low contrast to noise ratios. In one embodiment, an algorithm enables the measured contrast to noise ratio of long or curved structures in the image to be considerably improved. To do this, an embodiment of the invention uses oriented, separable, recursive and rapid steerable detection filters. Said detection filters have a low calculation cost, even for long filters having several orientations

摘要翻译： 用于检测导向仪器设备的介入式放射检查图像处理方法。 本发明的方法能够在具有非常低的对比度噪声比的放射线图像内检测到具有长线形或非常弯曲形状的物体。 在一个实施例中，算法使得能够显着改善图像中的长或弯曲结构的测量对比度与噪声比。 为此，本发明的实施例使用定向的，可分离的，递归的和快速的可操纵的检测滤波器。 所述检测滤波器具有低的计算成本，即使对于具有多个取向的长滤波器也是如此

公开(公告)号：US20070058880A1

公开(公告)日：2007-03-15

申请号：US11401043

申请日：2006-04-10

申请人： Jean Lienard ,  Vincent Auvray ,  Regis Vaillant

发明人： Jean Lienard ,  Vincent Auvray ,  Regis Vaillant

IPC分类号： G06K9/40 ,  G06K9/00

CPC分类号： G06T5/002 ,  G06T5/50 ,  G06T7/223 ,  G06T2207/10121 ,  G06T2207/20221 ,  G06T2207/30004

摘要： A process and system for improving a digital image of an object defined by pixels, acquired at the instant t and generated from an X-ray detector receiving X-rays emitted by a source. The process includes: determining a predicted image of the object at the instant t as a function of the images of the object acquired at the instants t-i, i being a positive whole number greater than or equal to 1, and moving of each of the layers constituting the image acquired at the instant t, the number of layers being previously fixed and the moving of each of the layers being previously determined; and generating a visualized image corresponding to a weighted sum of the predicted image and the image of the object acquired at the instant t, so as to attenuate the noise of the image of the object acquired at the instant t.

摘要翻译： 一种用于改善由时刻t获取并由接收由源发射的X射线的X射线检测器产生的由像素定义的对象的数字图像的处理和系统。 该过程包括：根据在时刻ti获取的对象的图像，确定在时刻t的对象的预测图像，i是大于或等于1的正整数，并且每个层的移动 构成在时刻t获取的图像，预先固定的层数，并且预先确定每个层的移动; 并产生对应于在时刻t获取的预测图像和对象图像的加权和的可视化图像，以便衰减在时刻t获取的对象的图像的噪声。

公开(公告)号：US08160318B2

公开(公告)日：2012-04-17

申请号：US12139579

申请日：2008-06-16

申请人： Vincent Bismuth ,  Vincent Auvray ,  Jean Lienard ,  Régis Vaillant

发明人： Vincent Bismuth ,  Vincent Auvray ,  Jean Lienard ,  Régis Vaillant

IPC分类号： G06K9/00

CPC分类号： G06T5/20 ,  G06K9/4609 ,  G06K2209/057

摘要： A method for processing images in interventional radioscopy for detecting guiding instrumentation equipment. The method of the invention enables objects of longilinear or very curved shapes to be detected within the radioscopic image having very low contrast to noise ratios. In one embodiment, an algorithm enables the measured contrast to noise ratio of long or curved structures in the image to be considerably improved. To do this, an embodiment of the invention uses oriented, separable, recursive and rapid steerable detection filters. Said detection filters have a low calculation cost, even for long filters having several orientations.

摘要翻译： 用于检测导向仪器设备的介入式放射检查图像处理方法。 本发明的方法能够在具有非常低的对比度噪声比的放射线图像内检测到具有长线形或非常弯曲形状的物体。 在一个实施例中，算法使得能够显着改善图像中的长或弯曲结构的测量对比度与噪声比。 为此，本发明的实施例使用定向的，可分离的，递归的和快速的可操纵的检测滤波器。 所述检测滤波器具有低的计算成本，即使对于具有多个取向的长滤波器也是如此。

公开(公告)号：US08094897B2

公开(公告)日：2012-01-10

申请号：US12267632

申请日：2008-11-10

申请人： Vincent Bismuth ,  Vincent Auvray ,  Régis Vaillant ,  Jean Lienard

发明人： Vincent Bismuth ,  Vincent Auvray ,  Régis Vaillant ,  Jean Lienard

IPC分类号： G06K9/00

CPC分类号： G06T5/002 ,  G06T2207/10116 ,  G06T2207/20064 ,  G06T2207/20182 ,  G06T2207/20221

摘要： A method for the processing of images in interventional radioscopy to produce a sequence of de-noised images in which elongated objects of guiding instrumentation equipment are preserved and enhanced. The method of the invention uses a tool for indicating the confidence to be placed in a given pixel as regards its belonging to a piece of guidance equipment. This tool is used to create a combination algorithm capable of re-injecting the pixels having a low contrast-to-noise ratio into the de-noised image. This combination algorithm enables the enhancement solely of the pixels of the guidance equipment with a high confidence value so as not to produce artifacts with the enhancement of false positives.

摘要翻译： 一种用于在介入式放射检查中处理图像以产生一系列去噪图像的方法，其中保存和增强了引导仪器设备的细长物体。 本发明的方法使用工具来表示将其置于给定像素中的置信度，就其属于一块引导设备而言。 该工具用于创建能够将具有低对比度噪声比的像素重新注入到去噪图像中的组合算法。 该组合算法使得能够仅利用高置信度的引导设备的像素进行增强，从而不会随着误报的增强而产生伪像。

公开(公告)号：US20070058780A1

公开(公告)日：2007-03-15

申请号：US11409836

申请日：2006-04-24

申请人： Jean Lienard ,  Vincent Auvray ,  Vincent Bismuth ,  Benjamin Didier Wimille

发明人： Jean Lienard ,  Vincent Auvray ,  Vincent Bismuth ,  Benjamin Didier Wimille

IPC分类号： H05G1/64

CPC分类号： G06T5/002 ,  G06T7/254 ,  G06T2207/10121 ,  G06T2207/20028 ,  G06T2207/20182 ,  G06T2207/30101

摘要： A method and apparatus for reduction of noise in an image of a sequence of fluoroscopic images of an object in motion having a differentiation of the pixels of the image between pixels in motion and fixed pixels, and a processing wherein a time filtering operation of the fixed pixels. For each pixel of the image, the differentiation between a pixel in motion and a fixed pixel is performed as a function of the result of a detection of motion during which, in a zone of the image covering a set of pixels in the vicinity of the pixel, the existence or respectively the absence of motion of the object relative to a preceding image is detected.

摘要翻译： 一种用于减少运动对象的荧光透视图像序列中的噪声的方法和装置，其具有运动像素与固定像素之间的图像像素的区分，以及其中固定的像素之间的时间滤波操作 像素。 对于图像的每个像素，运动像素和固定像素之间的差异作为运动检测结果的函数来执行，在该区域中，在覆盖一组像素的图像的区域中， 检测对象相对于前一图像的存在或不存在运动。

公开(公告)号：US08121192B2

公开(公告)日：2012-02-21

申请号：US11401043

申请日：2006-04-10

申请人： Jean Lienard ,  Vincent Auvray ,  Régis Vaillant

发明人： Jean Lienard ,  Vincent Auvray ,  Régis Vaillant

IPC分类号： H04N7/12

CPC分类号： G06T5/002 ,  G06T5/50 ,  G06T7/223 ,  G06T2207/10121 ,  G06T2207/20221 ,  G06T2207/30004

摘要： A process and system for improving a digital image of an object defined by pixels, acquired at the instant t and generated from an X-ray detector receiving X-rays emitted by a source. The process includes: determining a predicted image of the object at the instant t as a function of the images of the object acquired at the instants t−i, i being a positive whole number greater than or equal to 1, and moving of each of the layers constituting the image acquired at the instant t, the number of layers being previously fixed and the moving of each of the layers being previously determined; and generating a visualized image corresponding to a weighted sum of the predicted image and the image of the object acquired at the instant t, so as to attenuate the noise of the image of the object acquired at the instant t.

摘要翻译： 一种用于改善由时刻t获取并由接收由源发射的X射线的X射线检测器产生的由像素定义的对象的数字图像的处理和系统。 该过程包括：根据在时刻t-i，i为大于或等于1的正整数获得的对象的图像的函数，确定在时刻t的对象的预测图像，以及每个 构成在时刻t获取的图像的层，先前固定的层的数量和预先确定的每个层的移动; 并产生对应于在时刻t获取的预测图像和对象图像的加权和的可视化图像，以便衰减在时刻t获取的对象的图像的噪声。

公开(公告)号：US07599575B2

公开(公告)日：2009-10-06

申请号：US11409836

申请日：2006-04-24

申请人： Jean Lienard ,  Vincent Auvray ,  Vincent Jonas Bismuth ,  Benjamin Didier Réne Wimille

发明人： Jean Lienard ,  Vincent Auvray ,  Vincent Jonas Bismuth ,  Benjamin Didier Réne Wimille

IPC分类号： G06K9/36

CPC分类号： G06T5/002 ,  G06T7/254 ,  G06T2207/10121 ,  G06T2207/20028 ,  G06T2207/20182 ,  G06T2207/30101

摘要： A method and apparatus for reduction of noise in an image of a sequence of fluoroscopic images of an object in motion having a differentiation of the pixels of the image between pixels in motion and fixed pixels, and a processing wherein a time filtering operation of the fixed pixels. For each pixel of the image, the differentiation between a pixel in motion and a fixed pixel is performed as a function of the result of a detection of motion during which, in a zone of the image covering a set of pixels in the vicinity of the pixel, the existence or respectively the absence of motion of the object relative to a preceding image is detected.

摘要翻译： 一种用于减少运动对象的荧光透视图像序列中的噪声的方法和装置，其具有运动像素与固定像素之间的图像像素的区分，以及其中固定的像素之间的时间滤波操作 像素。 对于图像的每个像素，运动像素和固定像素之间的差异作为运动检测结果的函数来执行，在该区域中，在覆盖一组像素的图像的区域中 检测对象相对于前一图像的存在或不存在运动。

公开(公告)号：US20130116551A1

公开(公告)日：2013-05-09

申请号：US13810292

申请日：2011-07-15

申请人： Raoul Florent ,  Vincent Auvray ,  Michael Grass ,  Dirk Schaefer ,  Gert Schoonenberg

发明人： Raoul Florent ,  Vincent Auvray ,  Michael Grass ,  Dirk Schaefer ,  Gert Schoonenberg

IPC分类号： A61B6/02

CPC分类号： A61B6/022 ,  A61B6/12 ,  A61B6/4441 ,  A61B6/463 ,  A61B6/487 ,  A61B6/504 ,  A61B6/5223 ,  A61B6/5235 ,  A61B2090/364 ,  A61B2090/367

摘要： The present invention relates to 3D-originated cardiac roadmapping. In order to improve the accuracy of the information provided to the user as navigation information, without any additional burden to the patient such as additional X-ray dose, a method is described comprising the steps of a) providing 3D+t image data of a vascular structure of an object; b) acquiring two-dimensional image data of the object, which object comprises the vascular structure, the 2D image data comprising at least one 2D image; c) projecting the vascular structure, thereby generating a plurality of mask images on the basis of a 3D+t image data; d) registering the at least one 2D image with one of the plurality of the mask images, wherein the registration comprises finding the maximum of a similarity factor between the mask images and the at least one 2D image; e) generating a combination of the at least one 2D image and a projection of the vascular structure on the basis of the 3D+t image data according to the registration; and f) displaying the combination as a guiding vessel tree projection. Thus improved cardiac roadmapping in form of a topographical roadmapping is provided since the roadmapping is based on three-dimensional data.

摘要翻译： 本发明涉及3D起源的心脏路线图。 为了提高作为导航信息提供给用户的信息的准确性，对病人没有任何额外的负担，例如额外的X射线剂量，描述了一种方法，其包括以下步骤：a）提供一个 物体的血管结构; b）获取所述对象的二维图像数据，所述对象包括所述血管结构，所述2D图像数据包括至少一个2D图像; c）投影血管结构，从而基于3D + t图像数据生成多个掩模图像; d）使用所述多个掩模图像之一登记所述至少一个2D图像，其中所述注册包括找到所述掩模图像与所述至少一个2D图像之间的相似性因子的最大值; e）根据所述注册，基于所述3D + t图像数据生成所述至少一个2D图像和所述血管结构的投影的组合; 以及f）将组合显示为引导血管树投影。 因此，由于路线图基于三维数据，所以提供了形成路面图的形式的改进的心脏路线图。

公开(公告)号：US20130322724A1

公开(公告)日：2013-12-05

申请号：US13810680

申请日：2011-07-15

申请人： Raoul Florent ,  Vincent Auvray ,  Michael Grass ,  Dirk Schaefer ,  Gert Schoonenberg

发明人： Raoul Florent ,  Vincent Auvray ,  Michael Grass ,  Dirk Schaefer ,  Gert Schoonenberg

IPC分类号： G06T7/00

CPC分类号： G06T7/0012 ,  A61B6/12 ,  A61B6/463 ,  A61B6/487 ,  A61B6/504 ,  A61B6/5235 ,  A61B90/37 ,  A61B2090/364 ,  A61B2090/365 ,  A61B2090/3764 ,  G06T7/32 ,  G06T19/00 ,  G06T2207/10121 ,  G06T2207/30101

摘要： The invention relates to adaptive roadmapping providing improved information to the user, comprising the following steps: providing pre-navigation image data representing at least a part of a vascular structure comprising a tree-like structure with a plurality of sub-trees; generating a vessel representation on the basis of pre-navigation image data; acquiring live image data of the object, which object comprises the vascular structure; wherein the vascular structure contains an element of interest; determining spatial relation of the pre-navigation image data and the live image data; analysing the live image data by identifying and localizing the element in the live image data; determining a sub-tree in which the element is positioned, wherein the determining is based on the localization of the element and on the spatial relation; and selecting a portion of the vascular structure based on the determined sub-tree; generating a combination of the live image data and an image of the selected portion of the vascular structure; and displaying the combination as a tailored roadmap. The element may be physical object, for example an interventional tool or device.

摘要翻译： 本发明涉及向用户提供改进信息的自适应路线图，包括以下步骤：提供表示包括具有多个子树的树状结构的血管结构的至少一部分的导航前图像数据; 基于导航前图像数据生成船舶表示; 获取对象的实时图像数据，该对象包括血管结构; 其中所述血管结构含有感兴趣的元件; 确定所述导航前图像数据和实况图像数据的空间关系; 通过识别和定位实时图像数据中的元素来分析实况图像数据; 确定所述元素所在的子树，其中所述确定基于所述元素的定位和所述空间关系; 以及基于所确定的子树选择所述血管结构的一部分; 生成活体图像数据和血管结构的所选部分的图像的组合; 并将该组合显示为定制的路线图。 该元件可以是物理对象，例如介入工具或设备。