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    • 1. 发明授权
    • Method and apparatus for optical measurement of the leading edge position of an airfoil
    • 用于光学测量翼型前缘位置的方法和装置
    • US06876459B2
    • 2005-04-05
    • US10063228
    • 2002-04-01
    • Peter Henry TuGlen William BrooksbyJames Vradenburg MillerDonald Wagner Hamilton
    • Peter Henry TuGlen William BrooksbyJames Vradenburg MillerDonald Wagner Hamilton
    • G01B11/00G01B11/02G01B11/14G01N21/86
    • G01B11/028
    • Apparatus (10) for determining the leading edge (E) of an airfoil (A) includes a first light source (S1) illuminating a portion of the airfoil including its leading edge and a first camera (M1) acquiring an image of the illuminated portion of the airfoil. A second light source (S2), spaced apart from the first light source, also illuminates a portion of the airfoil including its leading edge. A second camera (M2) acquires an image of the portion of the airfoil illuminated by the second light source. The location (N2) of the second light source and the first camera are coincident in space as are the location (N1) of the first light source and the second camera. An image processor (P) processes the respective images obtained from the two cameras to locate the leading edge of the object. In doing so, the processor utilizes similarities in illumination of the airfoil by the respective light sources and occlusion boundaries of the respective illuminated portions of the airfoil.
    • 用于确定翼型(A)的前缘(E)的装置(10)包括照射包括其前缘的翼型的一部分的第一光源(S1)和获取被照射部分的图像的第一照相机(M1) 的翼型。 与第一光源间隔开的第二光源(S2)也照亮包括其前缘的翼型的一部分。 第二相机(M2)获取由第二光源照亮的翼型部分的图像。 第二光源和第一照相机的位置(N2)与第一光源和第二照相机的位置(N1)一样在空间中。 图像处理器(P)处理从两个相机获得的各个图像以定位对象的前沿。 在这样做时,处理器利用相应的光源照射翼型的相似性,以及翼型的相应照明部分的遮挡边界。
    • 3. 发明授权
    • Surface reconstruction and registration with a helmholtz reciprocal image pair
    • 表面重建和配准亥姆霍兹倒数图像对
    • US07574067B2
    • 2009-08-11
    • US10678244
    • 2003-10-03
    • Peter Henry TuJames Vradenburg MillerPaulo Ricardo MendoncaJames Chapman Ross
    • Peter Henry TuJames Vradenburg MillerPaulo Ricardo MendoncaJames Chapman Ross
    • G06K9/40G06K9/00
    • G06T7/593G06T7/507G06T7/74G06T7/80
    • A method of image reconstruction comprising: obtaining a Helmholtz reciprocal pair of images of an object, the images comprising a first image and a corresponding reciprocal image; determining an imaging geometry associated with the obtaining; selecting a plurality of points in the first image and identifying corresponding candidate points in the corresponding reciprocal image; matching a selected point of the plurality of points and a candidate point of the corresponding candidate points. A method of image registration with an object comprising: obtaining a Helmholtz reciprocal pair of images of an object, the Helmholtz reciprocal pair of images comprising a first image and a corresponding reciprocal image; estimating a pose for the object; predicting an estimated image corresponding to the pose and one image of the reciprocal pair of images; comparing the estimated image with a corresponding actual image from the pair of images; and refining the estimating a pose based on the comparing.
    • 一种图像重建方法,包括:获得对象的亥姆霍兹倒数对图像,所述图像包括第一图像和相应的倒数图像; 确定与所述获取相关联的成像几何; 选择所述第一图像中的多个点并识别所述对应的倒数图像中的相应候选点; 匹配多个点中的选定点和相应候选点的候选点。 一种用对象进行图像配准的方法,包括:获得对象的亥姆霍兹倒数对图像,所述亥姆霍兹倒数对图像包括第一图像和对应的倒数图像; 估计物体的姿势; 预测对应于所述姿势的估计图像和所述倒数对图像的一个图像; 将估计图像与来自该对图像的对应实际图像进行比较; 并根据比较精化估计姿势。
    • 6. 发明授权
    • Method and system for airway measurement
    • 气道测量方法和系统
    • US07116810B2
    • 2006-10-03
    • US10065878
    • 2002-11-27
    • James Vradenburg MillerMatthew William TurekJoseph Leagrand MundyPeter Henry Tu
    • James Vradenburg MillerMatthew William TurekJoseph Leagrand MundyPeter Henry Tu
    • G06K9/00A61B5/08
    • G06T7/62
    • A method for measuring tubular anatomical structures, for example lung airways, comprises isolating by at least one segmentation process a given tubular anatomical structure of interest and measuring at least one attribute of the structure of interest. A system for measuring lung airways using acquired image data is provided. The system comprises an imaging device for acquiring the image data and an image processing device coupled to the imaging device. The imaging processing device is configured for isolating by at least one segmentation process a given airway of interest, fitting an inner ellipse to an inner boundary of the given airway and an outer ellipse to an outer boundary of the airway structure using statistical techniques at a given point in the airway, and further configured for generating measurements of the given airway using the inner and outer ellipses.
    • 用于测量管状解剖结构(例如肺气道)的方法包括通过至少一个分割过程分离给定的感兴趣的管状解剖结构并测量感兴趣结构的至少一个属性。 提供了一种使用获取的图像数据测量肺气道的系统。 该系统包括用于获取图像数据的成像装置和耦合到成像装置的图像处理装置。 成像处理装置被配置为通过至少一个分割过程将感兴趣的给定气道进行隔离,使用给定的气道结构的统计技术将内部椭圆拟合到给定气道的内边界和外部椭圆到气道结构的外边界 并且还被配置为使用内部和外部椭圆产生给定气道的测量。