Method of searching for a thermal target
    1.
    发明授权
    Method of searching for a thermal target 有权
    搜寻热靶的方法

    公开(公告)号:US08373127B2

    公开(公告)日:2013-02-12

    申请号:US12491720

    申请日:2009-06-25

    IPC分类号: G01J5/02

    摘要: A system and method are used to search for a thermal target from a moving aerial platform. The system includes a computer corrected to a wide field-of-view thermal imager, a narrow field-of-view thermal imager, a global navigation satellite system receiver, and an inertial navigation system. The wide field-of-view thermal imager acouires multiple images as the wide field-of-view thermal imager moves relative to a search area. Each point of each imaoe is correlated to a stationary position within the search area. The computer is configured to independently time-average the thermal signal amplitude emanating from each stationary sector in the search area imaged bv the wide field-of-view thermal imager. and direct the narrow field-of-view thermal imager to point to the stationary position of the sector of interest and display a thermal imaoe associated with the sector of interest to a user.

    摘要翻译: 系统和方法用于从移动的空中平台搜索热目标。 该系统包括连接到宽视场热像仪,窄视野热像仪,全球导航卫星系统接收器和惯性导航系统的计算机。 当宽视场热像仪相对于搜索区域移动时,宽视场热像仪获取多个图像。 每个图像的每个点都与搜索区域内的静止位置相关。 计算机被配置为独立地对由宽视场热像仪成像的搜索区域中的每个静止扇区发出的热信号振幅进行时间平均,并将窄视场热像仪指向静止位置 并且显示与用户感兴趣的扇区相关联的热图像。

    Detecting strain in birefringent materials using spectral polarimetry
    3.
    发明授权
    Detecting strain in birefringent materials using spectral polarimetry 失效
    使用光谱极化法检测双折射材料中的应变

    公开(公告)号:US07859653B2

    公开(公告)日:2010-12-28

    申请号:US11848284

    申请日:2007-08-31

    IPC分类号: G01B11/16

    摘要: A method, computer program product and system for analyzing multispectral images from a plurality of regions of birefringent material, such as a polymer film, using polarized light and a corresponding polar analyzer to identify differential strain in the birefringent material. For example, the birefringement material may be low-density polyethylene (LDPE), high-density polyethylene (HDPE), polypropylene, polyethylene terephthalate (PET), polyvinyl chloride (PVC), polyvinylidene chloride, polyester, nylon, or cellophane film. Optionally, the method includes generating a real-time quantitative strain map.

    摘要翻译: 一种用于从双折射材料的多个区域(例如聚合物膜)使用偏振光和相应的极性分析仪分析多光谱图像以识别双折射材料中的微分应变的方法,计算机程序产品和系统。 例如,双折射材料可以是低密度聚乙烯(LDPE),高密度聚乙烯(HDPE),聚丙烯,聚对苯二甲酸乙二醇酯(PET),聚氯乙烯(PVC),聚偏二氯乙烯,聚酯,尼龙或玻璃纸膜。 可选地,该方法包括生成实时定量应变图。

    GAS SAMPLING DEVICE AND METHOD FOR COLLECTION AND IN-SITU SPECTROSCOPIC INTERROGATION OF VAPORS AND AEROSOLS
    4.
    发明申请
    GAS SAMPLING DEVICE AND METHOD FOR COLLECTION AND IN-SITU SPECTROSCOPIC INTERROGATION OF VAPORS AND AEROSOLS 审中-公开
    气体采样装置和收集和现场光谱色谱蒸发器和气溶胶的方法

    公开(公告)号:US20100053605A1

    公开(公告)日:2010-03-04

    申请号:US12508721

    申请日:2009-07-24

    IPC分类号: G01J3/44 G01N1/22

    摘要: A gas sampling device, analyte detection system, and methods for identifying a vapor or aerosol analyte suspended in a gas are described. The gas sampling device comprises a chamber having a gas inlet port, a substrate, one or more gas outlet ports near the substrate, and a pump. The gas outlet ports direct airflow to a reflecting substrate coated with a spectroscopically-transparent material. Analytes are deposited on the coated substrate through impaction, for massive aerosols, and diffusion through the viscous boundary layer, for vapor analytes. In one analyte detection system, a spectroscopic instrument is positioned behind a window opposite the substrate to interrogate the coated substrate surface as analytes are collected. An alternate detection system combines the gas sampling device with a detector in fluid communication with the gas outlet ports from the chamber, wherein the substrate is used as an analyte concentrator.

    摘要翻译: 描述了气体取样装置,分析物检测系统和用于识别悬浮在气体中的蒸汽或气溶胶分析物的方法。 气体采样装置包括具有气体入口端口,基板,靠近基板的一个或多个气体出口端口和泵的室。 气体出口端口将气流引导到涂有光谱透明材料的反射基板。 分析物通过冲击沉积在涂覆的基底上,用于大量气溶胶,并通过粘性边界层扩散用于蒸气分析物。 在一个分析物检测系统中,分光仪器位于与衬底相对的窗口的后面,以在分析物被收集时询问涂覆的基底表面。 替代检测系统将气体采样装置与检测器结合,该检测器与来自腔室的气体出口端口流体连通,其中基板用作分析物浓缩器。

    METHOD OF SEARCHING FOR A THERMAL TARGET

    公开(公告)号:US20090321636A1

    公开(公告)日:2009-12-31

    申请号:US12491720

    申请日:2009-06-25

    IPC分类号: G02F1/00 G06K9/34

    摘要: In one embodiment, an efficient method is presented for aerial searching for a small thermal target in a search area, such as a single person in open water, using two thermal imagers or “cameras” coupled with a computer which presents data from the system to a human user for inspection. One of the two thermal imagers has a very wide field of view (WFOV) fixed forward of or below the aircraft. The other, narrow field-of-view (NFOV) imager has a high zoom capability but its field of view can be reoriented to geo-point to a location on command. The WFOV thermal imager collects images rapidly so that no individual image is blurred due to changes in the field of view (FOV) on the time-scale of the image capture. The images are geo-registered using information from a global positioning receiver as well as the current altitude, roll, pitch, yaw, and velocity of the aircraft. As the aircraft moves and the FOV in the WFOV thermal imager changes, the computer averages the amplitude of the thermal radiation detected from each geo-registered position on the water below using the captured images continuously and in real time. The signal from a thermal target in the water is integrated while the background is relatively suppressed, enhancing the signal-to-noise ratio for the target as the square root of the number of images collected in which the target appears. A target which is much smaller than the area covered by a single pixel or that even has a thermal contrast below the noise equivalent temperature difference of the WFOV thermal imager can be detected. Thermal anomalies which have a signal commensurate in amplitude and spatial extent to the object of the search are selected by the system and their coordinates are relayed to the NFOV thermal imager. The NFOV thermal imager zooms into these locations sequentially and presents the image information to the human user who can then either reject or verify that the subject being imaged is the object of the search.