公开(公告)号：US5982422A

公开(公告)日：1999-11-09

申请号：US262296

申请日：1994-06-20

申请人： Laurence Flath ,  Eustace L. Dereniak ,  John P. Garcia ,  Steven M. Shepard

发明人： Laurence Flath ,  Eustace L. Dereniak ,  John P. Garcia ,  Steven M. Shepard

IPC分类号： H04N5/225 ,  H04N5/33 ,  H04N5/335 ,  H04N5/372 ,  H04N3/14

CPC分类号： H04N5/335

摘要： Disclosed is a method to image events with a camera having a focal plane ay of sensors on a charge coupled device whose parallel vertical registers clock signal charges to a horizontal register. The method includes sending a first clock signal to first gates on vertical register zones proximal to the sensors, and sending a second clock signal to second gates on distal vertical register zones remote from the sensors. A first transfer pulse on the first clock signal causes first signal charges in the sensors to transfer to the proximal zones, and then the first signal charges dissipate into the substrate of the charge coupled device. A second transfer pulse of the first clock signal occurs at a predetermined interval after the first transfer pulse and second signal charges transfer to the proximal zone. The second signal charges are clocked off the charge coupled device to become part of a video signal.

摘要翻译： 公开了一种在电荷耦合器件上具有传感器焦平面阵列的相机成像事件的方法，其并行垂直寄存器将时钟信号充电到水平寄存器。 该方法包括：将第一时钟信号发送到靠近传感器的垂直寄存器区上的第一个门，并向远离传感器的远侧垂直寄存器区的第二个门发送第二个时钟信号。 第一时钟信号上的第一传送脉冲使得传感器中的第一信号电荷转移到近端区域，然后第一信号电荷消散到电荷耦合器件的衬底中。 在第一传送脉冲和第二信号电荷转移到近端区之后，第一时钟信号的第二传送脉冲以预定间隔发生。 第二个信号电荷从电荷耦合器件中断开，成为视频信号的一部分。

公开(公告)号：US5404162A

公开(公告)日：1995-04-04

申请号：US73846

申请日：1993-06-07

申请人： David T. Sass ,  Steven M. Shepard

发明人： David T. Sass ,  Steven M. Shepard

IPC分类号： H04N5/30 ,  H04N5/225

CPC分类号： H04N5/30

摘要： A new imaging technique increases the effective frame rate of a video cam to a rate as high as one million Hz. In this technique, raw video signals are taken from the camera's sensors before the camera's logic does any signal processing. These signals are sent to an interface unit which selects signal segments for creating a composite image, the segments' size being as small as one or two pixels. Portions of the video signal that are not selected are given a zero value by the interface unit. The video signals are thereafter sent to the camera's signal processing logic, which converts the video signals into signals representing frames comprised of raster scan lines. The selected video signal segments become discrete portions of frames which are collected by a frame grabber. The frame grabber counts the times it has collected each discrete frame portion, determines an average value for each discrete portion, and builds the composite image from the averaged frame portions.

摘要翻译： 新的成像技术将摄像机的有效帧速率提高到高达100万Hz的速率。 在这种技术中，在摄像机的逻辑执行任何信号处理之前，从摄像机的传感器获取原始视频信号。 这些信号被发送到接口单元，该接口单元选择用于创建合成图像的信号段，段的大小小至一个或两个像素。 没有选择的视频信号的部分由接口单元给出零值。 视频信号随后被发送到相机的信号处理逻辑，其将视频信号转换成表示由光栅扫描线组成的帧的信号。 所选择的视频信号段变成由帧采集器收集的帧的离散部分。 帧抓取器对每个离散帧部分收集的时间进行计数，确定每个离散部分的平均值，并从平均帧部分构建合成图像。

公开(公告)号：US07186981B2

公开(公告)日：2007-03-06

申请号：US10902225

申请日：2004-07-29

申请人： Steven M. Shepard ,  Timothy Young

发明人： Steven M. Shepard ,  Timothy Young

IPC分类号： G01N21/00

CPC分类号： G01N25/72

摘要： A pulse controller device for controlling the excitation of a heat source used in thermographic imaging is disclosed. The pulse controller device comprises a power supply, a heat source coupled to the power supply, a device coupled to the power supply signaling the power supply to deliver electrical power to the heat source, a sensor for sensing the delivery of electrical power to the heat source, a flash duration module coupled to said sensor for measuring a duration of time, and a gate device coupled to said flash duration module for gating the electrical power utilized by the heat source. A method for thermographically evaluating a sample is also disclosed.

摘要翻译： 公开了一种用于控制用于热成像成像的热源的激发的脉冲控制器装置。 所述脉冲控制器装置包括电源，耦合到所述电源的热源，耦合到所述电源的设备的信号，所述电源指示所述电源向所述热源传递电力;传感器，用于感测向所述热量传递电力 源，连接到所述传感器的闪光持续时间模块，用于测量持续时间;以及耦合到所述闪光持续时间模块的门装置，用于选通由热源使用的电功率。 还公开了用于热成像评估样品的方法。

公开(公告)号：US5136383A

公开(公告)日：1992-08-04

申请号：US676669

申请日：1991-03-28

申请人： Steven M. Shepard ,  David T. Sass

发明人： Steven M. Shepard ,  David T. Sass

IPC分类号： H04N5/04 ,  H04N5/30 ,  H04N5/44 ,  H04N7/00 ,  H04N7/18

CPC分类号： H04N5/4448 ,  H04N5/04 ,  H04N5/30 ,  H04N7/002 ,  H04N7/188

摘要： The invention is synchronization hardware for assisting the processing of video signals in a high speed imaging system, the hardware having logic circuitry for selecting acceptable pictoral units from within frames of a video signal. The synchronization hardware also has circuits for electronically coordinating a camera, a frame grabber, a host computer for the frame grabber and a flagging signal generator.

摘要翻译： 本发明是用于协助在高速成像系统中处理视频信号的同步硬件，该硬件具有用于从视频信号的帧内的帧内选择可接受的图形单元的逻辑电路。 同步硬件还具有用于电子协调摄像机，帧采集器，用于帧采集器的主计算机和标记信号发生器的电路。

公开(公告)号：US07083327B1

公开(公告)日：2006-08-01

申请号：US09453319

申请日：1999-12-02

申请人： Steven M. Shepard

发明人： Steven M. Shepard

IPC分类号： G01N25/72 ,  G01N3/00 ,  G01J5/10

CPC分类号： G01N25/72

摘要： A active thermographic method for detecting subsurface defects in a specimen, particularly kissing unbond defects, includes heating a specimen, applying a force to the surface of the specimen to shift and separate the walls of the defect, and obtaining thermographic images of the specimen over time to monitor the heat flow through the specimen and detect thermal discontinuities. Because kissing unbond defects normally have good physical contact, and therefore good thermal conductivity, between its walls, these defects can go undetected in conventional active thermographic methods. By distorting the surface of the specimen, the kissing unbond defect is enlarged enough to generate sufficient thermal contrast for the defect to appear in the thermographic images.

摘要翻译： 用于检测样品中的地下缺陷的主动热成像方法，特别是接触未结合的缺陷，包括加热样品，向样品表面施加力以移动和分离缺陷壁，并随时间获得样品的热成像图像 以监测通过样品的热流，并检测热不连续性。 因为接触无粘合缺陷通常在其壁之间具有良好的物理接触，因此具有良好的导热性，所以在传统的活性热敏成像方法中，这些缺陷可能未被发现。 通过扭曲样品的表面，接吻未粘合缺陷被扩大到足以产生足够的热对比度，以使缺陷出现在热敏照相图像中。

公开(公告)号：US5683181A

公开(公告)日：1997-11-04

申请号：US439588

申请日：1995-05-12

申请人： Steven M. Shepard

发明人： Steven M. Shepard

IPC分类号： G01J5/00 ,  G01K7/00 ,  G01K7/36

CPC分类号： G01J5/02 ,  G01J5/0285 ,  G01J5/08 ,  G01J5/0887 ,  G01J2005/0077

摘要： An embodiment of an apparatus for enhancing remote infrared (IR) temperature measurement of a low-emissivity sample includes a flexible membrane of a high-emissivity material for converting thermal energy from the sample into IR energy, an enclosed shroud, an IR camera, a light source, and at least one fan. The membrane is coupled to the enclosed shroud at one end of the shroud for supporting the membrane. The shroud includes at least four walls and an end wall opposite the membrane to define an interior space. The end wall includes an imaging window formed therethrough for accommodating the IR camera, which is provided for detecting IR energy radiated from the membrane. The light source is disposed in the interior space and mounted to the shroud for illuminating the membrane. The fan is disposed in an aperture formed in the end wall and is provided for generating an airflow into the interior space onto the membrane to thereby apply a force against the membrane to move the membrane in a direction so that a predetermined surface area of a sample positioned adjacent to the apparatus is contacted by the membrane.

摘要翻译： 用于增强低辐射率样品的远红外（IR）温度测量的装置的实施例包括用于将来自样品的热能转换为IR能量的高辐射材料的柔性膜，封闭的护罩，IR照相机， 光源和至少一个风扇。 膜在护罩的一端连接到封闭的护罩，用于支撑膜。 护罩包括至少四个壁和与膜相对的端壁以限定内部空间。 端壁包括通过其形成的用于容纳IR照相机的成像窗口，其用于检测从膜辐射的IR能量。 光源设置在内部空间中并安装到护罩上以照亮膜。 风扇设置在形成在端壁中的孔中，并且被设置用于产生到膜中的内部空间的气流，从而向膜施加力以沿着使得样品的预定表面积移动膜的方向 邻近设备的位置被膜接触。

公开(公告)号：US06795784B1

公开(公告)日：2004-09-21

申请号：US09623071

申请日：2001-01-12

申请人： Steven M. Shepard

发明人： Steven M. Shepard

IPC分类号： G06K900

CPC分类号： G06T7/0002 ,  G01N27/72

摘要： A method an apparatus for non-destructive testing and evaluation of part samples includes obtaining a defect image of the sample, displaying the defect image on a display, referencing the defect image, such as through marking or annotation, to highlight locations at which defects or measurements are found, superimposing the defect image onto a live image of the part, and physically marking/annotating the part, tracing the marks from the defect image onto the physical sample, while viewing the live image. Because both the defect image and the live image are viewed through the same camera lens and are therefore subject to the same amount of distortion, the actual sample can be marked exactly according to the marks made in the defect image; there is no need to attempt matching a distorted defect image with the physical sample, as has been done in the prior art. This one-to-one correspondence between the defect image and the live display enables precise marking of the physical sample since the user looks at the distorted live image of the sample, not the physical sample itself, during the marking process. The method is particularly useful for detecting subsurface defects in a sample via thermographic techniques.

摘要翻译： 一种用于部分样本的非破坏性测试和评估的装置的方法包括获得样本的缺陷图像，在显示器上显示缺陷图像，参考缺陷图像，例如通过标记或注释，突出显示出缺陷或 发现测量，将缺陷图像叠加到部件的实时图像上，并且在观看实时图像的同时，将缺陷图像上的标记从缺陷图像追踪到物理样本上进行物理标记/注释。 因为缺陷图像和实时图像都是通过相同的相机镜头观看的，因此受到相同的失真量，可以根据在缺陷图像中产生的标记来精确地标记实际样本; 如现有技术中所做的那样，不需要尝试将失真的缺陷图像与物理样品匹配。 缺陷图像和实时显示之间的一对一对应可以精确地标记物理样本，因为用户在标记过程中观察样本的失真实况图像而不是物理样本本身。 该方法特别适用于通过热成像技术检测样品中的地下缺陷。

公开(公告)号：US06751342B2

公开(公告)日：2004-06-15

申请号：US10123726

申请日：2002-04-15

申请人： Steven M. Shepard

发明人： Steven M. Shepard

IPC分类号： G06K900

CPC分类号： G06T7/40 ,  G01N25/72 ,  G06T1/0007 ,  G06T7/001 ,  G06T7/42 ,  G06T2207/10016 ,  G06T2207/10048 ,  G06T2207/30148 ,  G06T2207/30164

摘要： A method and system for non-destructive, reference-free thermographic detection of sub-surface defects uses an infrared camera to capture multiple, spatially different images of a sample that has been heated and allow to cool to equilibrium temperature. The temperature-time data obtained for each pixel in each image is converted into the logarithmic domain and a least squares fit is conducted on the data to generate a polynomial expression corresponding to the temperature-time data for a given pixel. This polynomial expression can be transformed into the original time domain to obtain temperature-time data with improved signal-to-noise characteristics.

摘要翻译： 用于非表面缺陷的非破坏性无参考热成像检测的方法和系统使用红外相机来捕获被加热并允许冷却至平衡温度的样品的多个空间不同的图像。 将每个图像中的每个像素获得的温度 - 时间数据转换成对数域，并对数据进行最小二乘拟合，以生成与给定像素的温度 - 时间数据相对应的多项式。 该多项式表达式可以变换为原始时域，以获得具有改善的信噪比特性的温度 - 时间数据。

公开(公告)号：US5350481A

公开(公告)日：1994-09-27

申请号：US105982

申请日：1993-08-10

申请人： Steven M. Shepard ,  William A. Moncrief

发明人： Steven M. Shepard ,  William A. Moncrief

IPC分类号： B29C65/48 ,  B29C67/24 ,  B29C73/14

CPC分类号： B29C66/474 ,  B29C65/483 ,  B29C65/485 ,  B29C65/4875 ,  B29C67/247 ,  B29C73/14 ,  B29L2022/02 ,  B29L2030/00 ,  Y10T152/109

摘要： Disclosed is a device to repair ruptures in the wall of a flexible pressurizable enclosure. The device has an apertured plate on the wall's outer surface, and has a threaded fastener protruding through the aperture and rupture into the enclosure. A butterfly member threaded to the fastener within the enclosure has clamping members swingable out from the fastener so that engagement surfaces on the clamping members face the ruptured zone of the wall. A layer on the engagement surfaces has a curable adhesive resin initially segregated from a setting agent therefor, which is also in the layer. The segregation of resin and setting agent is achieved by enclosing at least one of these substances in capsules distributed within the layer. Once the clamping members swing away from the fastener, turning the fastener moves the clamping members to press them on the inner surface zone of the enclosure wall. The wall is thus sealingly pressed between the clamping members and the plate on the wall's outer surface.

摘要翻译： 公开了一种用于修复柔性可加压外壳的壁中的破裂的装置。 该装置在壁的外表面上具有多孔板，并且具有穿过孔突出并且破裂进入外壳的螺纹紧固件。 螺纹连接到外壳中的紧固件的蝴蝶构件具有可从紧固件摆出的夹紧构件，使得夹紧构件上的接合表面面向壁的破裂区域。 接合表面上的层具有最初与固化剂隔离的可固化粘合剂树脂，其也在该层中。 通过将这些物质中的至少一种包裹在分布在层内的胶囊中来实现树脂和固化剂的分离。 一旦夹紧构件远离紧固件摆动，转动紧固件就移动夹紧构件以将它们压在封闭壁的内表面区域上。 因此，壁被密封地压在夹紧构件和壁的外表面上的板之间。

公开(公告)号：US4970597A

公开(公告)日：1990-11-13

申请号：US468336

申请日：1990-01-22

申请人： Steven M. Shepard

发明人： Steven M. Shepard

IPC分类号： H04N5/228 ,  H04N5/30 ,  H04N7/18

CPC分类号： H04N5/228 ,  H04N5/30 ,  H04N7/188 ,  Y10S348/901

摘要： The invention is a method of imaging a high speed event. A multiplicity oframes, or image fields, are output from a camera which scans repeated occurrences of the event. Selected data representing individual portions of frames are accumulated in essentially random order. The selected data are used to construct a composite image of the high speed event.

摘要翻译： 本发明是对高速事件进行成像的方法。 从相机中输出多个帧或图像字段，扫描重复出现的事件。 表示帧的各个部分的所选数据以基本上随机的顺序累积。 所选数据用于构建高速事件的合成图像。