Surface-distortion measuring device and method
    1.
    发明授权
    Surface-distortion measuring device and method 有权
    表面失真测量装置及方法

    公开(公告)号:US07869061B2

    公开(公告)日:2011-01-11

    申请号:US11991788

    申请日:2006-09-14

    IPC分类号: G01B11/24

    摘要: A surface-distortion measuring device and a surface-distortion measuring method can quantitatively, rapidly, and highly accurately measure and evaluate surface-distortion distribution at all of observable points on a specular or semi-specular surface of a measurement target. The device includes pattern displaying means 2 capable of switching and displaying a plurality of kinds of light-and-shade patterns 5, capturing means 3 for capturing mirror images, reflected in the specular or semi-specular surface of a measurement target 1, of the plurality of light-and-shade patterns displayed on the pattern displaying means, and surface-distortion distribution calculating means 10 for performing image processing on the captured mirror images of the plurality of light-and-shade patterns to calculate surface-distortion distribution of the measurement-target surface.

    摘要翻译: 表面失真测量装置和表面失真测量方法可以定量,快速和高精度地测量和评估测量目标的镜面或半镜面上的所有可观察点处的表面失真分布。 该装置包括能够切换和显示多种光和阴影图案的图案显示装置2,用于捕获反射在测量对象1的镜面或半镜面中的镜像的拍摄装置3, 在图案显示装置上显示的多个光和阴影图案;以及表面失真分布计算装置10,用于对多个光和阴影图案的所拍摄的镜像进行图像处理,以计算出 测量目标表面。

    Method and apparatus for measuring a three-dimensional curved surface
shape
    2.
    发明授权
    Method and apparatus for measuring a three-dimensional curved surface shape 失效
    用于测量三维弯曲表面形状的方法和装置

    公开(公告)号:US5102223A

    公开(公告)日:1992-04-07

    申请号:US652446

    申请日:1998-02-07

    IPC分类号: G01B11/25

    CPC分类号: G01B11/2522

    摘要: A method and apparatus for measuring a three-dimensional curved surface shape based on a new measuring principle that a surface of an object to be measured is coded with information relating to a slit light which is used as a medium and moved or rotated at a constant speed. The manner in which a linear reflected pattern of the slit light is moved over the surface of the object to be measured is picked up by a television camera to form a composite image in which a value of each of picture elements in the image is represented by information relating to the slit light, e.g., a position, time or projection angle of the slit light at an instant that the slit light passes through one of positions on the object surface corresponding to that picture element. Then, a difference in value between each corresponding picture elements of the composite image and another composite image formed similarly with respect to a reference plane is determined to measure a three-dimensional curve surface shape of the object to be measured.

    Image composing apparatus
    3.
    发明授权
    Image composing apparatus 失效
    图像合成装置

    公开(公告)号:US4881126A

    公开(公告)日:1989-11-14

    申请号:US258604

    申请日:1988-10-17

    IPC分类号: G06T7/00 G06T5/50 H04N5/262

    CPC分类号: H04N5/2625 G06T5/50

    摘要: An image composing apparatus adapted to produce a composite image in which a value of each of picture elements is represented by a maximum value or minimum value of the brightness of a video signal as well as a corresponding other signal at the instant of the maximum or minimum value. A composite image is formed in which a value of each of picture elements is represented by a count of synchronizing signals or an externally applied timing, position or angle indicative external input signal at an instant that the video signal attains the maximum value or the minimum value for each picture element.

    Fatigue crack position detection apparatus
    4.
    发明授权
    Fatigue crack position detection apparatus 失效
    疲劳裂纹位置检测装置

    公开(公告)号:US4716459A

    公开(公告)日:1987-12-29

    申请号:US912582

    申请日:1986-09-16

    摘要: A distance between a distal end of a crack formed in a fatigue test piece on which a reference line is scribed, and the reference line, is monitored. The reference line and the crack are scanned with an ITV camera to prepare the fatigue test piece having the crack of a predetermined length. Luminance levels are integrated from a video signal obtained by scanning each raster in the same direction as that of the reference line to obtain a maximum luminance level, and the reference line position is detected from the maximum luminance level. At the same time, continuity of a high-level value is discriminated from the video signal, and a crack distal end position is detected from the discrimination result. A difference between both the detected positions is calculated, and the test piece is machined so that the difference corresponds to the predetermined length.

    摘要翻译: PCT No.PCT / JP86 / 00028第 371日期1986年9月16日 102(e)1986年9月16日PCT PCT 1月24日PCT公布。 出版物WO86 / 04410 日期:1986年7月31日。监视在其上划线的疲劳试片上形成的裂纹的远端与基准线之间的距离。 使用ITV照相机对参考线和裂纹进行扫描,以制备具有预定长度的裂纹的疲劳试验片。 从通过扫描每个光栅获得的视频信号与参考线的方向相同的方向集成亮度水平以获得最大亮度水平,并且从最大亮度水平检测参考线位置。 同时,从视频信号中辨别出高电平值的连续性,并根据识别结果检测裂纹远端位置。 计算两个检测位置之间的差异,并且加工试样,使得该差异对应于预定长度。

    Three-dimensional (3-D) coordinate measuring method, 3-D coordinate measuring apparatus, and large-structure building method
    7.
    发明授权
    Three-dimensional (3-D) coordinate measuring method, 3-D coordinate measuring apparatus, and large-structure building method 失效
    三维(3-D)坐标测量方法,三维坐标测量装置和大型建筑方法

    公开(公告)号:US06559931B2

    公开(公告)日:2003-05-06

    申请号:US10251879

    申请日:2002-09-20

    IPC分类号: G01C308

    CPC分类号: G01C15/00 G01C11/06

    摘要: A 3-D coordinate measurement is performed in such a way that an electrooptical distance-measuring device is used to measure a linear distance to a target point set on a surface of a measurement object, an angle measuring device is used to measure shifted angles of an optical axis of the electrooptical distance-measuring device, and a 3-D coordinate of the target point is measured according to a measured distance and a measured angle after the optical axis of the electrooptical distance-measuring device has been aligned to the target point. The present method includes a coordinate recognizing step for observing a plurality of targets, recognizing a plurality of target points, and calculating approximate 3-D coordinates of the target points; a macroscopic sighting step for approximate aligning the optical axis of the electrooptical distance-measuring device; and a microscopic sighting step for aligning the optical axis of the electrooptical distance-measuring device to the one of the target points in the predetermined viewfield range.

    摘要翻译: 以这样的方式进行3维坐标测量,使得电光测距装置测量到设置在测量对象表面上的目标点的线性距离,使用角度测量装置测量偏移角度 电光测距装置的光轴和目标点的3-D坐标根据测量的距离和在光电测距装置的光轴已经对准目标点之后的测量角度被测量 。 本方法包括:用于观察多个目标,识别多个目标点并计算目标点的近似3维坐标的坐标识别步骤; 用于近似对准电光测距装置的光轴的宏观瞄准步骤; 以及用于将电光测距装置的光轴与预定视野范围内的目标点之一对准的微观瞄准步骤。

    Apparatus for measuring three-dimensional curved surface shapes
    8.
    发明授权
    Apparatus for measuring three-dimensional curved surface shapes 失效
    用于测量三维弯曲表面形状的装置

    公开(公告)号:US5102224A

    公开(公告)日:1992-04-07

    申请号:US496336

    申请日:1990-03-20

    CPC分类号: G01B11/2518 G01B11/2522

    摘要: A three-dimensional curved surface shape measuring apparatus of the slit light linear scanning type. In accordance with a composite image u(x', y') produced by image composing means when a slit light is scanned over a surface of an object to be measured, a measured value or computed value u.sub.o (x', y') of a composite image with respect to a reference plane, a light projecting angle .theta. to the reference plane and a reference plane-television camera distance a, a necessary computational processing is performed to determine a three-dimensional curved surface shape f(x, y) of the surface of the object which is free of any distortions due to a perspective effect of the television camera.

    Surface-distortion Measuring Device and Method
    9.
    发明申请
    Surface-distortion Measuring Device and Method 有权
    表面失真测量装置及方法

    公开(公告)号:US20090141287A1

    公开(公告)日:2009-06-04

    申请号:US11991788

    申请日:2006-09-14

    IPC分类号: G01B11/25

    摘要: A surface-distortion measuring device and a surface-distortion measuring method can quantitatively, rapidly, and highly accurately measure and evaluate surface-distortion distribution at all of observable points on a specular or semi-specular surface of a measurement target. The device includes pattern displaying means 2 capable of switching and displaying a plurality of kinds of light-and-shade patterns 5, capturing means 3 for capturing mirror images, reflected in the specular or semi-specular surface of a measurement target 1, of the plurality of light-and-shade patterns displayed on the pattern displaying means, and surface-distortion distribution calculating means 10 for performing image processing on the captured mirror images of the plurality of light-and-shade patterns to calculate surface-distortion distribution of the measurement-target surface.

    摘要翻译: 表面失真测量装置和表面失真测量方法可以定量,快速和高精度地测量和评估测量目标的镜面或半镜面上的所有可观察点处的表面失真分布。 该装置包括能够切换和显示多种光和阴影图案的图案显示装置2,用于捕获反射在测量对象1的镜面或半镜面中的镜像的拍摄装置3, 在图案显示装置上显示的多个光和阴影图案;以及表面失真分布计算装置10,用于对多个光和阴影图案的所拍摄的镜像进行图像处理,以计算出 测量目标表面。