公开(公告)号：US06920240B2

公开(公告)日：2005-07-19

申请号：US10048336

申请日：2001-06-07

申请人： Thomas Rodet ,  Pierre Grangeat ,  Laurent Desbat

发明人： Thomas Rodet ,  Pierre Grangeat ,  Laurent Desbat

IPC分类号： G06T11/00 ,  G06K9/00

CPC分类号： G06T11/005 ,  G06T2211/421

摘要： Sets of projections of measurements through an object (1) the image of which is to be represented, undergo Fourier transforms before being broken down into blocks according to cutoff frequencies. The blocks are separately reconstructed in order to form a series of thumbnail images of the object, which are then combined in order to reconstruct the final image. The reconstruction calculations on the thumbnail images are rapid and often a large portion of the blocks will be discarded, notably those which are at high frequencies, whereby their contribution may frequently be neglected as well as the noise effects which accumulate therein.The invention is applied to medical or industrial tomography methods and is of larger interest for mobile objects, the movement of which may be estimated and compensated.

摘要翻译： 通过其图像要被表示的对象（1）的测量的投影的集合在根据截止频率被分解成块之前进行傅里叶变换。 为了形成一系列的对象的缩略图，单独地重建这些块，然后将其组合以便重构最终的图像。 缩略图上的重建计算是快速的，并且通常大部分的块将被丢弃，特别是那些处于高频率的块，其中它们的贡献可能经常被忽略以及在其中积累的噪声效应。 本发明应用于医疗或工业层析成像方法，并且对移动物体具有较大的兴趣，其运动可以被估计和补偿。

公开(公告)号：US20060147097A1

公开(公告)日：2006-07-06

申请号：US10530854

申请日：2003-10-14

申请人： Pierre Grangeat ,  Thomas Rodet ,  Laurent Desbat

发明人： Pierre Grangeat ,  Thomas Rodet ,  Laurent Desbat

IPC分类号： G06K9/00

CPC分类号： G06T11/006 ,  G06T2211/421

摘要： A calculation for reconstructing tomographic images involves the decomposition of two-dimensional sets of projections of this image by a wavelet decomposition method, in which the set of projections is separated into thumbnail images expressing the whole and the higher frequency details of the projections, respectively. The reconstruction is carried out separately on the thumbnail images before making a combination. Certain properties of this decomposition, notably in the Fourier frequency domain, provide substantial reduction of the amount of calculations.

摘要翻译： 用于重建断层图像的计算涉及通过小波分解方法对该图像的二维投影集进行分解，其中将该组投影分成表示整体的缩略图和投影的较高频率细节。 在进行组合之前，在缩略图上分别进行重建。 这种分解的某些特性，特别是在傅里叶频域中，提供了大量的计算量的减少。

公开(公告)号：US20050238219A1

公开(公告)日：2005-10-27

申请号：US10524967

申请日：2004-06-28

申请人： Sebastien Roux ,  Anne Koenig ,  Laurent Desbat ,  Pierre Grangeat

发明人： Sebastien Roux ,  Anne Koenig ,  Laurent Desbat ,  Pierre Grangeat

IPC分类号： G06T11/00 ,  G06K9/00

CPC分类号： G06T11/006 ,  G06T2211/412

摘要： A correct inversion formula of projections of tomography is proposed by supposing improved deformation of the object (E), that is, comprising translations, rotations and homotheties comparable to uniform dilations. Generalisations to other deformation situations of the object in question and other radiations are possible.

摘要翻译： 通过假设物体（E）的改进的变形，即包括与均匀膨胀相当的平移，旋转和同源物，提出了层析成像投影的正确的反演公式。 对所讨论的物体和其他辐射的其他变形情况的概括是可能的。

公开(公告)号：US08265353B2

公开(公告)日：2012-09-11

申请号：US10955037

申请日：2004-09-30

申请人： Stéphane Bonnet ,  Pierre Grangeat

发明人： Stéphane Bonnet ,  Pierre Grangeat

IPC分类号： G06K9/00

CPC分类号： G06T11/005 ,  G06T2211/412

摘要： Measurements of a mobile object and particularly a living being are made using two techniques, normally radiation attenuation and radiation emission, in synchronization to provide images of the object state. Movement displacement fields from one phase to the next are estimated for both techniques, but the final images obtained by the emission technique are improved by the knowledge of the displacement field obtained by the other technique that is more precise.

摘要翻译： 使用两种技术（通常是辐射衰减和辐射发射）同步地进行移动物体，特别是生物的测量以提供物体状态的图像。 对于两种技术估计从一个相位到下一个相位的移动位移场，但是通过更精确地获得的其他技术获得的位移场的知识来改进由发射技术获得的最终图像。

公开(公告)号：US20080314765A1

公开(公告)日：2008-12-25

申请号：US12213063

申请日：2008-06-13

申请人： Alexandre Chibane ,  Pierre Grangeat

发明人： Alexandre Chibane ,  Pierre Grangeat

IPC分类号： G01N27/26

CPC分类号： G01R31/1227 ,  G01N27/4163

摘要： Method for detecting defective electrodes in a micro-electrode matrix The method for detecting defective electrodes in an electrode matrix comprises measurement of an electrochemical impedance spectrum for each of the electrodes. Modeling of the spectrum impedance relative to each electrode by means of an implicit non-integral frequency model is performed in the form of a parameter matrix. Principal components analysis of the matrix is performed to transform said parameter matrix into a final matrix containing decorrelated variables representing the parameter matrix in a new space. The distance between each electrode and a reference point is calculated. These calculated distances are compared with a preset threshold distance and the electrodes having a distance greater than the threshold distance are classified as being defective.

摘要翻译： 用于检测微电极矩阵中的有缺陷的电极的方法用于检测电极矩阵中的有缺陷的电极的方法包括测量每个电极的电化学阻抗谱。 以参数矩阵的形式，通过隐式非积分频率模型建模相对于每个电极的频谱阻抗。 执行矩阵的主成分分析以将所述参数矩阵转换成包含在新空间中表示参数矩阵的解相关变量的最终矩阵。 计算每个电极与参考点之间的距离。 将这些计算的距离与预设的阈值距离进行比较，并且具有大于阈值距离的距离的电极被分类为有缺陷的。

公开(公告)号：US20050285857A1

公开(公告)日：2005-12-29

申请号：US10955037

申请日：2004-09-30

申请人： Stephane Bonnet ,  Pierre Grangeat

发明人： Stephane Bonnet ,  Pierre Grangeat

IPC分类号： G06T11/00 ,  G06T17/00

CPC分类号： G06T11/005 ,  G06T2211/412

摘要： Measurements of a mobile object and particularly a living being are made using two techniques, normally radiation attenuation and radiation emission, in synchronisation to provide images of the object state. Movement displacement fields from one phase to the next are estimated for both techniques, but the final images obtained by the emission technique are improved by the knowledge of the displacement field obtained by the other technique that is more precise.

摘要翻译： 使用两种技术（通常是辐射衰减和辐射发射）同步地进行移动物体，特别是生物的测量以提供物体状态的图像。 对于两种技术估计从一个相位到下一个相位的移动位移场，但是通过更精确地获得的其他技术获得的位移场的知识来改进由发射技术获得的最终图像。

公开(公告)号：US09251122B2

公开(公告)日：2016-02-02

申请号：US13603716

申请日：2012-09-05

申请人： Rémi Perenon ,  Ali Mohammad-Djafari ,  Pierre Grangeat

发明人： Rémi Perenon ,  Ali Mohammad-Djafari ,  Pierre Grangeat

IPC分类号： G01N31/00 ,  G06F17/18 ,  B82Y15/00 ,  B82Y35/00 ,  G01N29/02 ,  G01N29/30 ,  H01J49/00 ,  G06F19/00

CPC分类号： G06F17/18 ,  B82Y15/00 ,  B82Y35/00 ,  G01N29/022 ,  G01N29/30 ,  G01N2291/0255 ,  G01N2291/0256 ,  G01N2291/0427 ,  G06F19/703 ,  G06F19/707 ,  H01J49/0018

摘要： A method for estimating a molecular mass parameter in a sample that includes at least one component of given molecular mass, comprising the steps consisting of passing the sample through a processing chain comprising a mass spectrometer with a MEMS or NEMS electromechanical sensor, in this way obtaining a signal representing the molecular mass parameter and estimating the molecular mass parameter by means of a signal processing device. The molecular mass parameter is defined on the basis of a parameter of time distribution of successive detections, by the MEMS or NEMS electromechanical sensor, of the adsorption of said component, and the estimation of the molecular mass parameter is made by Bayesian inference, on the basis of a direct analytical modeling of said signal according to the molecular mass parameter and to technical parameters of the processing chain comprising at least one technical parameter of the MEMS or NEMS electromechanical sensor.

摘要翻译： 一种用于估计样品中包含给定分子量的至少一种组分的分子量参数的方法，包括以下步骤：将样品通过包含质谱仪的处理链与MEMS或NEMS机电传感器以这种方式获得 表示分子量参数并通过信号处理装置估计分子质量参数的信号。 基于由MEMS或NEMS机电传感器连续检测的时间分布参数，所述组分的吸附而定义分子质量参数，并且通过贝叶斯推理对分子质量参数进行估计，在 根据分子质量参数对所述信号的直接分析建模以及包括MEMS或NEMS机电传感器的至少一个技术参数的处理链的技术参数的基础。

公开(公告)号：US6103350A

公开(公告)日：2000-08-15

申请号：US870971

申请日：1997-06-06

申请人： Pierre Grangeat ,  Jerome De Murcia

发明人： Pierre Grangeat ,  Jerome De Murcia

IPC分类号： G06T5/00 ,  B32B27/14

CPC分类号： G06T5/002 ,  G06T11/005 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/10104 ,  G06T2207/10108 ,  G06T2207/30048 ,  G06T2211/412 ,  Y10T428/24802

摘要： The present invention consists of obtaining from a series of measurements or original images of varying precision of a mobile object, such as a beating heart, a sequence of restored images minimizing an error function comprising an adequation term between the restored images and the measurements, a space moving term of images to be restored and a time smoothing term of restored images, taking account of an evaluation of the movement of the object between the original image during the considered phase of the movement and the image of the object in a neighboring phase.

摘要翻译： 本发明包括从一系列测量结果或诸如跳动心脏的移动对象的不同精度的原始图像获得，将包括恢复图像和测量之间的充分项的误差函数最小化的恢复图像序列， 考虑到在所考虑的运动阶段期间的原始图像与相邻相位中的对象的图像之间的对象的运动的评估，将恢复的图像的空间移动项和恢复的图像的时间平滑项。

公开(公告)号：US5814817A

公开(公告)日：1998-09-29

申请号：US642432

申请日：1996-05-03

申请人： Regis Guillemaud ,  Pierre Grangeat

发明人： Regis Guillemaud ,  Pierre Grangeat

IPC分类号： G01N23/04 ,  G01T1/164 ,  G01T1/29 ,  G01T1/161

CPC分类号： G01T1/1615 ,  A61B6/4258 ,  G01T1/1642 ,  G01T1/2985 ,  A61B6/037

摘要： A process provides a cartography of an emission of radiation by a body (2) that is corrected with respect to the attenuation of radiation by the body. A radiation transmissions source (3) is able to assume several positions with respect to the body and emits photons toward the body. The process includes: for each position of the radiation source, determining a transmission measurement (N) of the photons emitted by the radiation source and transmitted by the body and determining an emission measurement projection of the photons emitted by the body, the transmission measurement and the emission measurement projection being performed with the same geometry of the body. Determining, for each position of the radiation source, an attenuation correction coefficient C of radiation due to the body in order to correct the emission measurement projection (E6); and then constructing an emissions map (E2) on the basis of the attenuation-corrected, emission measurement projections.

摘要翻译： 一个过程提供了通过身体（2）发射辐射的制图，其被相对于身体的辐射衰减被校正。 辐射传播源（3）能够相对于身体呈现多个位置并朝向身体发射光子。 该过程包括：对于辐射源的每个位置，确定由辐射源发射并由身体传输的光子的透射测量（N），并确定由身体发射的光子的发射测量投影，透射测量和 以与身体相同的几何形状执行发射测量投影。 对于辐射源的每个位置确定为了校正发射测量投影（E6）而导致的由身体引起的辐射的衰减校正系数C; 然后基于经衰减校正的发射测量投影来构建排放图（E2）。

公开(公告)号：US5406478A

公开(公告)日：1995-04-11

申请号：US185472

申请日：1994-01-24

申请人： Solange Delageniere ,  Pierre Grangeat

发明人： Solange Delageniere ,  Pierre Grangeat

IPC分类号： G01B11/24 ,  G06T1/00 ,  G06T7/20 ,  G06T11/00 ,  G06F15/42

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

摘要： The present invention provides a method for generating three-dimensional images of an object having a network of points. One preferred embodiment of the present invention comprises using a moving two-dimensional sensor network array to take measurements, at successive discrete time intervals, of radiation emanating from the network of points. The sensors generate electrical signals representative of the object at the discrete time intervals, which impulses are used to generate a system of linear equations describing the object at these discrete time intervals. A change function function is generated to describe the object in between the discrete time intervals. Finally, electrical signals representative of a continuous description of the object are generated using the system of equations and the change function, which continuous description are used to generate three-dimensional images of the object.

摘要翻译： 本发明提供一种用于产生具有点网络的对象的​​三维图像的方法。 本发明的一个优选实施例包括使用移动的二维传感器网络阵列以连续的离散时间间隔从点网络发出的辐射进行测量。 这些传感器以离散的时间间隔产生代表物体的电信号，该脉冲用于产生在这些离散时间间隔描述物体的线性方程组。 生成变化函数函数来描述离散时间间隔之间的对象。 最后，使用方程式和变化函数来生成代表对象的连续描述的电信号，该连续描述用于生成对象的三维图像。