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    Composite image processing for LWIR images using geometric features
    11.
    发明授权
    Composite image processing for LWIR images using geometric features 有权

    公开(公告)号：US09832396B2

    公开(公告)日：2017-11-28

    申请号：US14560814

    申请日：2014-12-04

    Applicant: United Technologies Corporation

    Inventor： Charles W. Haldeman ,  Andrew Consiglio ,  Christopher J. Lehane ,  Mark F. Zelesky

    IPC: H04N5/33 ,  G06T7/33 ,  G06T5/50

    CPC classification number: H04N5/33 ,  G06T5/50 ,  G06T7/33 ,  G06T2207/10016 ,  G06T2207/10048 ,  G06T2207/20221 ,  G06T2207/30164

    Abstract: A method for thermally imaging a moving workpiece of a gas turbine engine comprises identifying a plurality of geometric features to construct a composite image. The geometric features include at least one integral thermal feature of the moving workpiece, and at least one artificial feature applied to the workpiece for diagnostic purposes. One of the plurality of geometric features is identified as a master feature, and the remainder of the plurality of geometric features are located relative to the master feature with relative actual coordinates. A pixel location of the master feature is identified or each image, and the remainder of the plurality of geometric features are located relative to the master feature with relative pixel coordinates. Offset, rotation, and scaling of the secondary images are varied to minimize a relative difference between the relative pixel coordinates and the relative actual coordinates. The offset, rotated, and scaled secondary images are combined with the reference image to form a composite image.

    DUAL WALLED SEAL ASSEMBLY
    16.
    发明申请
    DUAL WALLED SEAL ASSEMBLY 有权
    双壁密封组件

    公开(公告)号：US20150345319A1

    公开(公告)日：2015-12-03

    申请号：US14724442

    申请日：2015-05-28

    Applicant: United Technologies Corporation

    Inventor： Mark F. Zelesky ,  Timothy M. Davis

    IPC: F01D11/00

    CPC classification number: F01D11/005 ,  F01D11/003 ,  F05D2240/11 ,  F05D2240/55 ,  F05D2250/75 ,  F16J15/0887

    Abstract: A seal assembly that may be for turbine engine includes a first wall defining in-part a first flowpath and a second wall defining in-part a second flowpath having a pressure that is greater than the first flowpath. The second wall has a plurality of metering apertures in fluid communication between the second flowpath and a cavity defined by and between the first and second walls. The walls may be convoluted and generally, resiliently compressed between two substantially opposing surfaces for providing a seal between the two flowpaths.

    Abstract translation: 可用于涡轮发动机的密封组件包括第一壁部分地限定第一流动路径，第二壁部分限定具有大于第一流动路径的压力的第二流动路径。 第二壁具有在第二流动路径和由第一和第二壁之间限定的空腔之间流体连通的多个计量孔。 壁可以被卷绕并且通常在两个基本上相对的表面之间弹性压缩，以在两个流路之间提供密封。

    NATURAL RESOLUTION PROCESSING FOR LWIR IMAGES
    17.
    发明申请
    NATURAL RESOLUTION PROCESSING FOR LWIR IMAGES 有权
    自然图像的自然分辨率处理

    公开(公告)号：US20150172566A1

    公开(公告)日：2015-06-18

    申请号：US14560843

    申请日：2014-12-04

    Applicant: United Technologies Corporation

    Inventor： Charles W. Haldeman ,  Andrew Consiglio ,  Christopher J. Lehane ,  Mark F. Zelesky

    IPC: H04N5/33 ,  H04N5/265 ,  G06T7/00

    CPC classification number: H04N5/33 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/10048 ,  G06T2207/20216 ,  G06T2207/30164 ,  H04N5/265

    Abstract: A method for thermally imaging a moving workpiece of a gas turbine engine using long wavelength infrared (LWIR) images of the workpiece captured during operation of the gas turbine engine. The method comprises determining average pixel intensity and pixel variation in intensity for each pixel across the plurality of LWIR images, determining average area intensity and area variation in intensity across a range of areas defined by increasing length scales about a selected pixel, and identifying as a critical length scale a length scale at which area variation in intensity is minimized as a function of length scale, for which the area intensity remains substantially the same as the average pixel intensity of the selected pixel. A composite image is built such that each pixel of the composite image has intensity equal to an average area intensity centered on that pixel, over the critical length scale.

    Abstract translation: 一种利用在燃气涡轮发动机运转期间捕获的工件的长波长红外（LWIR）图像对燃气涡轮发动机的移动工件进行热成像的方法。 该方法包括确定多个LWIR图像中的每个像素的平均像素强度和像素变化，确定通过增加关于所选像素的长度尺度所限定的区域范围内的强度的平均面积强度和面积变化，并将其识别为 临界长度刻度，其中强度的区域变化被最小化为长度尺度的函数的长度尺度，其面积强度保持与所选像素的平均像素强度基本相同。 构建合成图像，使得合成图像的每个像素的强度等于关键长度尺度上以该像素为中心的平均面积强度。

    COMPOSITE IMAGE PROCESSING FOR LWIR IMAGES USING GEOMETRIC FEATURES
    18.
    发明申请
    COMPOSITE IMAGE PROCESSING FOR LWIR IMAGES USING GEOMETRIC FEATURES 有权
    使用几何特征的LWIR图像的复合图像处理

    公开(公告)号：US20150172565A1

    公开(公告)日：2015-06-18

    申请号：US14560814

    申请日：2014-12-04

    Applicant: United Technologies Corporation

    Inventor： Charles W. Haldeman ,  Andrew Consiglio ,  Christopher J. Lehane ,  Mark F. Zelesky

    IPC: H04N5/33 ,  G06T7/60 ,  G06T11/60

    CPC classification number: H04N5/33 ,  G06T5/50 ,  G06T7/33 ,  G06T2207/10016 ,  G06T2207/10048 ,  G06T2207/20221 ,  G06T2207/30164

    Abstract: A method for thermally imaging a moving workpiece of a gas turbine engine comprises identifying a plurality of geometric features to construct a composite image. The geometric features include at least one integral thermal feature of the moving workpiece, and at least one artificial feature applied to the workpiece for diagnostic purposes. One of the plurality of geometric features is identified as a master feature, and the remainder of the plurality of geometric features are located relative to the master feature with relative actual coordinates. A pixel location of the master feature is identified or each image, and the remainder of the plurality of geometric features are located relative to the master feature with relative pixel coordinates. Offset, rotation, and scaling of the secondary images are varied to minimize a relative difference between the relative pixel coordinates and the relative actual coordinates. The offset, rotated, and scaled secondary images are combined with the reference image to form a composite image.

    Abstract translation: 用于热成像燃气涡轮发动机的移动工件的方法包括识别多个几何特征以构造合成图像。 几何特征包括移动工件的至少一个整体热特征，以及至少一个人造特征，用于诊断目的。 多个几何特征中的一个被识别为主要特征，并且多个几何特征的其余部分相对于具有相对实际坐标的主要特征定位。 识别主要特征的像素位置或每个图像，并且多个几何特征的其余部分相对于具有相对像素坐标的主要特征位置。 改变次级图像的偏移，旋转和缩放以使相对像素坐标和相对实际坐标之间的相对差异最小化。 偏移，旋转和缩放的次级图像与参考图像组合以形成合成图像。

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