Apparatus for producing a jet of gas at high temperature
    1.
    发明授权
    Apparatus for producing a jet of gas at high temperature 失效
    用于在高温下产生气体射流的装置

    公开(公告)号:US4725715A

    公开(公告)日:1988-02-16

    申请号:US856666

    申请日:1986-04-25

    IPC分类号: F23D14/52 F23D14/42 F23D14/66

    CPC分类号: F23D14/42

    摘要: A tubular case closed at its two ends respectively by a first side wall carrying two electric supply terminals and a second side wall carrying a hot gas outlet nozzle for discharging a jet of heated oxygen. A heating tube extends axially through the case constituting a heating resistance, the wall or this heating tube being provided in one of its end portions with at least one opening for the passage of the gas to the interior of the heating tube and the outlet nozzle. The case also includes a heat exchanger of thermoconductive material and gas pre-heating means.

    摘要翻译: 管状壳体的两端分别由承载两个电源端子的第一侧壁和承载用于排出加热氧气射流的热气体出口喷嘴的第二侧壁封闭。 加热管轴向延伸通过构成耐热性的壳体,壁或该加热管设置在其一个端部中,至少一个开口用于气体通向加热管和出口喷嘴的内部。 该情况还包括热传导材料和气体预热装置的热交换器。

    Medical viewing system and method for enhancing structures in noisy images
    2.
    发明授权
    Medical viewing system and method for enhancing structures in noisy images 有权
    用于增强嘈杂图像结构的医疗观察系统和方法

    公开(公告)号:US07415169B2

    公开(公告)日:2008-08-19

    申请号:US10496554

    申请日:2002-11-20

    摘要: A viewing system and method for enhancing objects of interest represented on a moving background in a sequence of noisy images and for displaying the sequence of enhanced images, comprising extracting means (11) for extracting features related to an object of interest in images of the sequence; registering means (12) for registering the features related to the object of interest with respect to the image referential, yielding registered images (13); similarity detection means for determining the resemblance of the representations of a registered object of interest in succeeding images and weighing means for modulating the intensities of the pixels of said object of interest over the images of the sequence; temporal integrating means (14, 33b) for integrating the object of interest and the background over a number, or at least two, registered images (13) of the sequence; and display means (54) for displaying the processed images (15, 45) of the enhanced registered object of interest on faded background. Application: Medical Imaging. X-ray Fluoroscopic Imaging.

    摘要翻译: 一种用于增强在噪声图像序列中的移动背景上表现的感兴趣对象并用于显示增强图像序列的观看系统和方法,包括提取装置(11),用于提取与所述序列的图像中的感兴趣对象相关的特征 ; 登记装置(12),用于相对于图像参考登记与感兴趣对象相关的特征,产生登记图像(13); 相似度检测装置,用于确定在后续图像中的注册对象的表示的相似度;以及称重装置,用于调制所述序列的图像上的所述感兴趣对象的像素的强度; 时间积分装置(14,33b),用于在所述序列的数量或至少两个登记图像(13)上对感兴趣的对象和背景进行积分; 以及显示装置,用于在褪色的背景上显示增强的注册对象的处理图像(15,45)。 应用:医学影像 X光透视成像。

    Processing method and system for 3-D geometric modeling of the spine
    3.
    发明授权
    Processing method and system for 3-D geometric modeling of the spine 失效
    脊柱三维几何建模的处理方法和系统

    公开(公告)号:US07095881B2

    公开(公告)日:2006-08-22

    申请号:US09761254

    申请日:2001-01-16

    IPC分类号: G06K9/00 G06K9/36 G06K9/32

    CPC分类号: G06T7/593 G06T2207/30008

    摘要: An image processing method for providing three-dimensional geometric modeling of the spine, using a biplanar image reconstruction, comprising steps of acquisition of a first view (F) of a part of the spine, and a second view (L) of the same part of the spine taken from a different angle around the longitudinal axis of the spine, matching the dimensions of the views (F,L) from two predetermined corresponding landmarks (P1, P2) on each view and deriving three-dimensional coordinates (z, x, y) of corresponding points (P) along the spine. Application: X-ray medical 3-D imaging.

    摘要翻译: 一种用于使用双平面图像重建提供脊柱的三维几何建模的图像处理方法,包括获取脊柱的一部分的第一视图(F)和相同部分的第二视图(L)的步骤 从脊柱的纵向轴线以不同的角度取得的脊柱,将视图(F,L)的尺寸与两个预定的相应的界标(P 1,P 2)相匹配,并得出三维坐标(z ,x,y)对应点(P)。 应用:X光医学3-D成像。

    Medical viewing system and method for detecting boundary structures
    4.
    发明授权
    Medical viewing system and method for detecting boundary structures 有权
    用于检测边界结构的医疗观察系统和方法

    公开(公告)号:US07991453B2

    公开(公告)日:2011-08-02

    申请号:US10534475

    申请日:2003-11-07

    IPC分类号: A61B6/12

    摘要: A medical viewing system for displaying a sequence of medical images that represents moving and/or positioning a guide-wire in a blood vessel, which guide-wire has a guide-wire tip that is contrasted with respect to the guide wire, this system comprising acquisition means that acquires an original sequence of noisy images called live sequence and processing means for processing said live sequence of images in real time, the processing means comprising: first means (10) for automatically detecting the guide-wire tip, yielding skeleton information of the guide-wire tip and a field of motion vectors based on said skeleton information; second means (20) for automatically registering the guide-wire tip with respect to a reference based on the field of motion vectors and for enhancing the guide-wire and the vessel walls while blurring the background in the registered images; and comprising: Display means for displaying a live sequence of processed images.

    摘要翻译: 一种用于显示代表在血管中移动和/或定位导丝的一系列医学图像的医疗观察系统,该导丝具有相对于导丝形成对比的导丝末端,该系统包括 获取装置实时获取称为实时序列的原始噪声图像序列和处理所述实时序列图像的处理装置,所述处理装置包括:第一装置(10),用于自动检测导丝末端,产生骨架信息 基于所述骨架信息的导丝尖端和运动矢量场; 第二装置(20),用于基于运动矢量场自动对准导丝尖端相对于参考,并且用于在使注视图像中的背景模糊的同时增强导丝和血管壁; 并且包括:显示装置,用于显示已处理图像的实时序列。

    Medical viewing system and method for detecting borders of an object of interest in noisy images
    5.
    发明授权
    Medical viewing system and method for detecting borders of an object of interest in noisy images 有权
    用于检测嘈杂图像中感兴趣对象的边界的医学观察系统和方法

    公开(公告)号:US07551758B2

    公开(公告)日:2009-06-23

    申请号:US10537208

    申请日:2003-11-26

    IPC分类号: G06K9/00

    摘要: The invention relates to a viewing system and a method for detecting an object of interest in a sequence of images (IS). Said object of interest is detected by first locating localizers related to said object of interest and by locating borders (BL) related to said object of interest using the location (LI, LZ) of said localizers. The viewing system according to the invention is able to produce a sequence of enhanced images in which the object of interest is enhanced, to measure some characteristics and to build a three dimensional representation of said object of interest. The viewing system is also able to register and combine said sequence of enhanced images with a sequence of reference images.

    摘要翻译: 本发明涉及一种用于检测图像序列(IS)中的感兴趣对象的观看系统和方法。 通过首先定位与所述感兴趣对象相关的定位器以及通过使用所述定位器的位置(LI,LZ)定位与所述感兴趣对象相关的边界(BL)来检测所述感兴趣的对象。 根据本发明的观看系统能够产生增强图像的序列,其中感兴趣的对象被增强,以测量一些特征并构建所述感兴趣对象的三维表示。 观看系统还能够将所述增强图像序列与参考图像序列进行注册和组合。

    Device for forming an image and method of correcting geometrical optical
distortions in an image
    8.
    发明授权
    Device for forming an image and method of correcting geometrical optical distortions in an image 失效
    用于形成图像的装置和校正图像中的几何光学失真的方法

    公开(公告)号:US5675380A

    公开(公告)日:1997-10-07

    申请号:US575537

    申请日:1995-12-20

    CPC分类号: H04N5/217 G06T5/006

    摘要: The device includes systems for picking up (1), acquiring (2) and digitizing (3) a distorted source image (SI), a system for processing digital images (4, 47) for constructing a distortion-corrected target image (TI) corresponding to the source image (SI), this system including a first sub-assembly (4) for predetermining, on the basis of the data of a distorted TEST source image (SG.degree.), an optical center (OC.sup.n) and a polynomial function (F.sub.n) for correcting radial distortions around this optical center, and a second sub-assembly (47) which applies the polynomial correction function to each address of the pixel of the target image (TI) for furnishing the address of a point in the distorted source image (SI) in which an intensity data is present which is applied to the initial address in the target image. The method includes the computation, in a TEST source image (SG.degree.), of an optical center (OC.sup.n) at the center of optical distortions, and of a polynomial function (F.sup.n) for correcting distortions for constructing a TEST target image (TI).

    摘要翻译: 该设备包括用于拾取(1),获取(2)和数字化(3)失真的源图像(SI)的系统,用于处理用于构造失真校正的目标图像(TI)的数字图像(4,47)的系统, 对应于源图像(SI),该系统包括用于根据失真的TEST源图像(SG DEG)的数据,光学中心(OCn)和多项式函数来预先确定的第一子组件(4) (Fn),用于校正围绕该光学中心的径向失真;以及第二子组件(47),其将多项式校正函数应用于目标图像(TI)的像素的每个地址,以提供失真的 源图像(SI),其中存在施加到目标图像中的初始地址的强度数据。 该方法包括在TEST源图像(SG DEG)中计算光失真中心处的光学中心(OCn)以及用于校正用于构建TEST目标图像(TI)的失真的多项式函数(Fn) 。

    VASCULAR ROADMAPPING
    9.
    发明申请

    公开(公告)号:US20120183189A1

    公开(公告)日:2012-07-19

    申请号:US13498162

    申请日:2010-09-17

    IPC分类号: G06K9/00

    摘要: Cardiac roadmapping consists in correctly overlaying a vessel map sequence derived from an angiogram acquisition onto a fluoroscopy sequence used during PTCA intervention. This enhanced fluoroscopy sequence however suffers from several drawbacks such as breathing motion, high noise level, and most of all suboptimal contrast-enhanced mask due to segmentation defaults. This invention proposes to reverse the process and to locally overlay the intervention device as seen in fluoroscopy onto an optimal contrast-enhanced image of a corresponding cycle. This drastically reduces or suppresses the breathing motion, it provides the high image quality standard of angiograms, and avoids segmentation defaults. This proposal could lead to a brand new navigation practice in PCI procedures.

    摘要翻译: 心脏路线图包括将从血管造影获取导出的血管图谱顺序正确地覆盖在PTCA干预期间使用的荧光检查序列上。 然而,这种增强的荧光透视序列具有诸如呼吸运动,高噪声水平以及由于分割默认值而导致的大多数次优对比度增强的掩模的几个缺陷。 本发明提出了逆转该过程并将介入装置局部覆盖在荧光透视中观察到相应周期的最佳对比度增强图像上。 这大大降低或抑制呼吸运动,提供血管造影图像的高图像质量标准,并避免分割默认值。 这个建议可能导致PCI程序中的全新导航实践。

    Medical viewing system and method for detecting and enhancing structures in noisy images
    10.
    发明授权
    Medical viewing system and method for detecting and enhancing structures in noisy images 有权
    用于检测和增强嘈杂图像结构的医疗观察系统和方法

    公开(公告)号:US07289652B2

    公开(公告)日:2007-10-30

    申请号:US10496450

    申请日:2002-11-04

    IPC分类号: G06K9/00

    摘要: A medical viewing system for displaying a sequence of images of a medical intervention that comprises moving and/or positioning a tool in a body organ, which tool is carried by a support to which at least one marker is attached at a predetermined location with respect to the tool, comprising means for acquiring the sequence of images, and for processing said images during the medical intervention, wherein: extracting means for automatically extracting at least one marker that is attached to the tool support and that neither belongs to the tool nor to the body organ, and yielding the marker location information; computing means for automatically deriving the tool location information from the marker location information, and enhancing means for improving the visibility of the tool and/or the body organ in order to check whether the medical intervention stages are successfully carried out.

    摘要翻译: 一种用于显示医疗干预图像序列的医疗观察系统,其包括将身体器官中的工具移动和/或定位,所述工具由至少一个标记物附接到相对于 所述工具包括用于获取图像序列的装置,以及用于在医疗介入期间处理所述图像的装置,其中:提取装置,用于自动提取附接到所述工具支架的至少一个标记,并且既不属于所述工具也不属于所述工具 身体器官,并产生标记位置信息; 用于从标记位置信息自动导出工具位置信息的计算装置,以及用于提高工具和/或身体器官的可见性的增强装置,以便检查医疗介入阶段是否成功执行。