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：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：US06549606B1

公开(公告)日：2003-04-15

申请号：US09666999

申请日：2000-09-21

申请人： Régis Vaillant ,  Francisco Sureda ,  Jean Lienard ,  Laurent Launay

发明人： Régis Vaillant ,  Francisco Sureda ,  Jean Lienard ,  Laurent Launay

IPC分类号： A61B603

CPC分类号： G06T11/005 ,  G06T2211/404 ,  Y10S378/901

摘要： Several acquisitions of digital radiographic images of an element of interest are made, by using a moving camera rotating around the element of interest in a plane parallel to the plane of a section, a matching stage is carried out in which projected elements are located in all the acquired images, corresponding respectively to the projections of the element of interest in those acquired images. The width of each projected element is determined and the section of the element of interest is reconstructed from the different widths determined.

摘要翻译： 通过使用在平行于部分的平面的平面中围绕感兴趣的元件旋转的移动相机来进行对感兴趣的元件的数字放射照相图像的几次采集，执行匹配阶段，其中投影元素位于所有 所获取的图像分别对应于那些获取的图像中的感兴趣元素的投影。 确定每个投影元素的宽度，并从所确定的不同宽度重建感兴趣元素的部分。

公开(公告)号：US06643392B1

公开(公告)日：2003-11-04

申请号：US09667067

申请日：2000-09-21

申请人： Régis Vaillant ,  Yves Trousset ,  Jean Lienard ,  Francisco Sureda

发明人： Régis Vaillant ,  Yves Trousset ,  Jean Lienard ,  Francisco Sureda

IPC分类号： G06K900

CPC分类号： G06T11/005 ,  G06T11/006 ,  G06T2211/404 ,  G06T2211/412 ,  G06T2211/424

摘要： A process for reconstructing a tridimensional image of an object moving with a substantially cyclic motion, for example the vessels of the human heart, in which, for an acquisition duration extending over several cycles of the movement of the object, an acquisitio of a plurality of initial digital radiographic images is performed using a snapshot apparatus rotating around the object. Initial images having the same temporal occurrence in the course of each cycle are selected respectively in successive cycles so as to form a group of images which is associated with this same temporal occurrence. Several different groups of initial images corresponding respectively to several different temporal occurrences are formed. An intermediate tridimensional representation of the object is reconstructed on the basis of each group of initial images and of an iterative image reconstruction algorithm. A law of spatial deformation between two intermediate tridimensional representations is formulated on the basis of the two intermediate tridimensional representations corresponding to two successive temporal occurrences, and a final tridimensional representation of the object is reconstructed on the basis of the initial images successively acquired, of the spatial deformation laws successively formulated and of an iterative image reconstruction algorithm.

摘要翻译： 一种用于重建以基本循环运动（例如人类心脏的血管）移动的物体的三维图像的过程，其中，对于在物体的运动的几个周期延伸的获取持续时间，获取多个 使用绕物体旋转的快照设备执行初始数字放射照相图像。 分别在连续循环中选择在每个周期的过程中具有相同时间出现的初始图像，以形成与该相同时间出现相关联的一组图像。 形成了分别对应于几个不同时间事件的几组不同的初始图像。 在每组初始图像和迭代图像重建算法的基础上重建对象的中间三维表示。 基于对应于两个连续时间出现的两个中间三维表示来形成两个中间三维表示之间的空间变形规律，并且基于连续获取的初始图像重建对象的最终三维表示 相继制定的空间变形规律和迭代图像重建算法。

公开(公告)号：US06385285B1

公开(公告)日：2002-05-07

申请号：US09667210

申请日：2000-09-21

申请人： Régis Vaillant ,  Laurent Launay ,  Jean Lienard ,  Francisco Sureda

发明人： Régis Vaillant ,  Laurent Launay ,  Jean Lienard ,  Francisco Sureda

IPC分类号： A61B603

CPC分类号： G06T11/006 ,  G06T2211/424

摘要： Method of reconstruction of a three-dimensional image of an element of interest comprises a phase of acquisition of digital radiographic images by rotation of an camera around the organ, a phase of marking the position of the element of interest from image to image, and a phase of reconstruction of the three-dimensional image of the element of interest from acquired images and positions of the element of interest successively located in the successive images.

摘要翻译： 重建感兴趣元件的三维图像的方法包括通过相机围绕器官的旋转来获取数字放射照相图像的阶段，将图像元素的位置标记到图像的相位，以及 从所获取的图像中重建感兴趣元素的三维图像和依次位于连续图像中的感兴趣元素的位置的相位。

公开(公告)号：US08515527B2

公开(公告)日：2013-08-20

申请号：US10964428

申请日：2004-10-13

申请人： Régis Vaillant ,  François Kotian ,  Jasbir Singh Sra ,  Jean Cousty ,  Laurent Launay

发明人： Régis Vaillant ,  François Kotian ,  Jasbir Singh Sra ,  Jean Cousty ,  Laurent Launay

IPC分类号： A61B5/05

CPC分类号： A61B6/12 ,  A61B5/7285 ,  A61B6/5235 ,  A61B6/5247 ,  A61B6/541 ,  A61B6/566 ,  A61B34/10 ,  A61B34/20 ,  A61B90/36 ,  A61B2017/00243 ,  A61B2034/105 ,  A61B2034/2051 ,  A61B2034/256 ,  G06K9/32 ,  G06K2209/051 ,  G06T7/30 ,  G06T7/73 ,  G06T2207/30048

摘要： An imaging system for use in a medical intervention procedure is disclosed. A first image acquisition system is configured to produce a fluoroscopy image of an anatomical region. A second image acquisition system is configured to produce a 3D model of the anatomical region. An interventional tracking system, which includes a position indicator, is configured to maneuver within the anatomical region. A first anatomical reference system is common to both the first and the second image acquisition systems, and a second anatomical reference system is common to both the first image acquisition system and the interventional tracking system. A processing circuit configured to process executable instructions for registering the second image acquisition system with the first image acquisition system to define a first registration, registering the interventional tracking system with the first image acquisition system to define a second registration, and in response to the first and second registrations, registering the interventional tracking system with the second image acquisition system.

摘要翻译： 公开了一种用于医疗干预程序的成像系统。 第一图像采集系统被配置为产生解剖区域的透视图像。 第二图像采集系统被配置为产生解剖区域的3D模型。 包括位置指示器的介入跟踪系统被配置为在解剖区域内操纵。 第一解剖参考系统对于第一和第二图像采集系统是共同的，第二解剖参考系统对于第一图像采集系统和介入跟踪系统是共同的。 一种处理电路，被配置为处理用于将所述第二图像采集系统与所述第一图像采集系统注册的可执行指令，以定义第一注册，将所述介入跟踪系统与所述第一图像采集系统注册以定义第二注册，以及响应于所述第一注册 和第二注册，用第二图像采集系统注册介入跟踪系统。

公开(公告)号：US07242402B1

公开(公告)日：2007-07-10

申请号：US09594873

申请日：2000-06-15

申请人： Fabienne Betting ,  Jérôme Francois Knoplioch ,  Laurent Launay ,  Yves Trousset ,  Régis Vaillant

发明人： Fabienne Betting ,  Jérôme Francois Knoplioch ,  Laurent Launay ,  Yves Trousset ,  Régis Vaillant

IPC分类号： G06T17/00 ,  G09G5/00

CPC分类号： G06T19/00 ,  G06T2219/008

摘要： The invention concerns a method of visualization of a part of a three-dimensional image. The part is defined by a finite predetermined volume, a sphere, for example, the center of which is located on an element of interest present in the three-dimensional image. In order to do so, a point is selected on the element of interest, a sphere is created in the three-dimensional image, the dimensions of which are predetermined and the center of which is the point on the element of interest, an intersection is made between the sphere and the three-dimensional image, and then the part of the three-dimensional image contained in the sphere is displayed.

摘要翻译： 本发明涉及一种可视化三维图像的一部分的方法。 该部分由有限的预定体积定义，球体例如其中心位于三维图像中存在的感兴趣元素上。 为了这样做，在感兴趣的元素上选择一个点，在三维图像中创建球体，其尺寸是预定的，其中心是感兴趣元素上的点，交点是 在球体和三维图像之间形成，然后显示包含在球体中的三维图像的一部分。

公开(公告)号：US06404843B1

公开(公告)日：2002-06-11

申请号：US09666997

申请日：2000-09-21

申请人： Régis Vaillant

发明人： Régis Vaillant

IPC分类号： A61B603

CPC分类号： G06T11/005 ,  G06T11/006 ,  G06T2211/404

摘要： The invention concerns a method of reconstruction of a three-dimensional image of elements of sharp contrast from a set of two-dimensional images of an object comprising the elements of sharp contrast. For each different position of an X-ray camera around the object, a two-dimensional image is taken, and the use of an algorithm for reconstruction of the three-dimensional image is preceded by a stage of filtering of the set of two-dimensional images.

摘要翻译： 本发明涉及从包括锐利对比元素的对象的一组二维图像重建锐利对比元素的三维图像的方法。 对于物体周围的X射线摄像机的每个不同位置，拍摄二维图像，并且使用用于重建三维图像的算法之前是一组二维的滤波 图片。

公开(公告)号：US06320928B1

公开(公告)日：2001-11-20

申请号：US09254094

申请日：1999-03-01

申请人： Régis Vaillant ,  Yves Trousset ,  Romain Boucherie ,  René Romeas

发明人： Régis Vaillant ,  Yves Trousset ,  Romain Boucherie ,  René Romeas

IPC分类号： A61B600

CPC分类号： G06T11/006 ,  A61B6/583 ,  G06T2211/404 ,  G06T2211/424

摘要： A set of digital two-dimensional projected images of an object is acquired for different positions of a camera rotating around an object. The projected images are calibrated into a volume containing the object and divided into voxels, the space coordinates of which are identified in a chosen calibration frame of reference. A pretreatment is applied on each acquired image in order to elaborate a rectified image having a predetermined spatial orientation selected as a function of a chosen specific axis of the calibration frame of reference, and an iterative algorithm of algebraic image reconstruction between each rectified image and the set of voxels is applied by successively treating the voxels in a predetermined order linked to the choice of said specific axis, which makes it possible to minimize the duration of reconstruction of the three-dimensional image.

摘要翻译： 对于围绕物体旋转的相机的不同位置，获取对象的一组数字二维投影图像。 将投影图像校准成包含对象的体积并且被分成体素，其体空间坐标在选定的校准参考系中被识别。 对每个获取的图像应用预处理，以便制定具有根据校准参考系的所选择的特定轴的函数选择的具有预定空间取向的整流图像，以及每个整流图像与第二图像之间的代数图像重建的迭代算法 通过以与所述特定轴的选择相关联的预定顺序连续处理体素来应用一组体素，这使得可以最小化三维图像的重建的持续时间。