Optical gas imaging systems and method compatible with uncooled thermal imaging cameras

    公开(公告)号:US11641441B2

    公开(公告)日:2023-05-02

    申请号:US17054096

    申请日:2019-05-23

    申请人: Fluke Corporation

    摘要: Thermal imaging systems can include an infrared camera module (200), a user interface (208), a processor (222), and a memory. The memory can include instructions to cause the processor (222) to perform a method upon a detected actuation from the user interface (208). The method can include performing a non-uniformity correction (1702) to reduce or eliminate fixed pattern noise from infrared image data from the infrared camera module (200). The method can include capturing infrared images (1704) at a plurality of times and register the captured images via a stabilization process (1706). The registered, non-uniformity corrected images can be used to perform a gas imaging process (1700). A processor (222) can be configured to compare an apparent background temperature in each of a plurality of regions of infrared image data to a target gas temperature. The processor (222) can determine if such regions lack sufficient contrast to reliably observe the target gas.

    OPTICAL GAS IMAGING SYSTEMS AND METHOD COMPATIBLE WITH UNCOOLED THERMAL IMAGING CAMERAS

    公开(公告)号:US20210218909A1

    公开(公告)日:2021-07-15

    申请号:US17054096

    申请日:2019-05-23

    申请人: Fluke Corporation

    IPC分类号: H04N5/33 G01J5/02 G01N21/3504

    摘要: Thermal imaging systems can include an infrared camera module (200), a user interface (208), a processor (222), and a memory. The memory can include instructions to cause the processor (222) to perform a method upon a detected actuation from the user interface (208). The method can include performing a non-uniformity correction (1702) to reduce or eliminate fixed pattern noise from infrared image data from the infrared camera module (200). The method can include capturing infrared images (1704) at a plurality of times and register the captured images via a stabilization process (1706). The registered, non-uniformity corrected images can be used to perform a gas imaging process (1700). A processor (222) can be configured to compare an apparent background temperature in each of a plurality of regions of infrared image data to a target gas temperature. The processor (222) can determine if such regions lack sufficient contrast to reliably observe the target gas.

    EDGE ENHANCEMENT FOR THERMAL-VISIBLE COMBINED IMAGES AND CAMERAS

    公开(公告)号:US20190130621A1

    公开(公告)日:2019-05-02

    申请号:US16169554

    申请日:2018-10-24

    申请人: Fluke Corporation

    摘要: Systems and methods directed toward combining visible light and infrared images can include processing visible light image data to determine an edge factor value for a plurality of visible light pixels corresponding to the strength of an edge at that location. The edge factor value can be determined using features from the visible light image data and an edge gain input, which may be adjustable by a user. The edge factor values are combined with an edge midscale value to create a first set of modified visible light image data including pixels emphasized based on the strength of the edge in the visible light image. The modified visible light image data is combined with infrared image data to create combined image data having contribution from the infrared image data and the edge factor values from the visible light image data.

    HIGH-ACCURACY TEMPERATURE SCREENING IN DYNAMIC AMBIENT CONDITIONS

    公开(公告)号:US20220338740A1

    公开(公告)日:2022-10-27

    申请号:US17861049

    申请日:2022-07-08

    申请人: Fluke Corporation

    IPC分类号: A61B5/01 A61B5/11 A61B5/00

    摘要: A system for screening persons' temperatures comprises an imaging device configured to generate imagery data, including infrared image data, of a first scene and a second scene. The system receives imagery data from the first scene, identifies persons in the scene using the imagery data, and determines each person's temperature. The system further compares the persons' temperatures to a threshold and indicates a person should be directed to the second scene if the person's temperature is above a threshold. Subsequently, the system determines and compares the person's temperature in the second scene and provides an indication if the person's temperature exceeds a second threshold. Further, a confidence factor can be associated with determinations of persons' temperatures.

    EDGE ENHANCEMENT FOR THERMAL-VISIBLE COMBINED IMAGES AND CAMERAS
    18.
    发明申请
    EDGE ENHANCEMENT FOR THERMAL-VISIBLE COMBINED IMAGES AND CAMERAS 审中-公开
    可视化组合图像和摄像机的边缘增强

    公开(公告)号:US20170061663A1

    公开(公告)日:2017-03-02

    申请号:US14837757

    申请日:2015-08-27

    申请人: Fluke Corporation

    IPC分类号: G06T11/60 G06T7/00

    摘要: Systems and methods directed toward combining visible light and infrared images can include processing visible light image data to determine an edge factor value for a plurality of visible light pixels corresponding to the strength of an edge at that location. The edge factor value can be determined using features from the visible light image data and an edge gain input, which may be adjustable by a user. The edge factor values are combined with an edge midscale value to create a first set of modified visible light image data including pixels emphasized based on the strength of the edge in the visible light image. The modified visible light image data is combined with infrared image data to create combined image data having contribution from the infrared image data and the edge factor values from the visible light image data.

    摘要翻译: 针对组合可见光和红外图像的系统和方法可以包括处理可见光图像数据以确定对应于该位置处的边缘的强度的多个可见光像素的边缘因子值。 可以使用来自可见光图像数据和边缘增益输入的特征来确定边缘因子值,边缘增益输入可由用户调节。 将边缘因子值与边缘中间值组合以产生包括基于可见光图像中的边缘的强度而强调的像素的第一组修改的可见光图像数据。 修改的可见光图像数据与红外图像数据组合,以创建来自红外图像数据和来自可见光图像数据的边缘因子值的贡献的组合图像数据。

    LASER ILLUMINATED GAS IMAGING
    19.
    发明申请
    LASER ILLUMINATED GAS IMAGING 有权
    激光照射气体成像

    公开(公告)号:US20150369730A1

    公开(公告)日:2015-12-24

    申请号:US14310914

    申请日:2014-06-20

    申请人: Fluke Corporation

    摘要: Aspects of the invention generally relate to illumination gas imaging and detection. Camera systems can illuminate a target scene with light sources configured to emit absorbing and non-absorbing wavelengths with respect to a target gas. An image of the target scene illuminated with a non-absorbing wavelength can be compared to a non-illuminated image of the target scene in order to determine information about the background of the target scene. If sufficient light of the non-absorbing wavelength is scattered by the scene toward a detector, the target scene comprises an adequate background for performing a gas imaging process. A camera system can alert a user of portions of the target scene suitable or unsuitable for performing a gas imaging process. If necessary, the user can reposition the system until sufficient portions of the target scene are recognized as suitable for performing the gas imaging process.

    摘要翻译: 本发明的方面通常涉及照明气体成像和检测。 相机系统可以照亮目标场景,光源被配置成相对于目标气体发射吸收和非吸收波长。 可以将用非吸收波长照射的目标场景的图像与目标场景的非照明图像进行比较,以便确定关于目标场景的背景的信息。 如果足够的非吸收波长的光被场景散射到检测器,则目标场景包括用于执行气体成像处理的足够的背景。 相机系统可以向用户提醒适合于或不适合执行气体成像过程的目标场景的部分。 如果需要,用户可以重新定位系统,直到目标场景的足够部分被识别为适合执行气体成像过程。

    THERMAL IMAGE ANIMATION
    20.
    发明申请
    THERMAL IMAGE ANIMATION 有权
    热图像动画

    公开(公告)号:US20140267353A1

    公开(公告)日:2014-09-18

    申请号:US13833853

    申请日:2013-03-15

    申请人: FLUKE CORPORATION

    摘要: Animation of a thermal image captured by a thermal imager that includes automatically changing particular aspects of the presentation of the image. The coloring of the thermal image may automatically change through two or more color presentations. The colors which may automatically change or be “animated” may be any colors in the usual rainbow of color or in the greyscale. The animation may include a series of small, stepwise incremental changes that gradually change the image. If timed correctly and if the increments are sufficiently small, the transitions of the image may appear smooth, in the manner of a movie or cartoon.

    摘要翻译: 由热像仪拍摄的热图像的动画,其包括自动改变图像呈现的特定方面。 热图像的着色可以通过两个或多个颜色表现自动改变。 可以自动改变或被“动画化”的颜色可以是通常的彩色彩色或灰度中的任何颜色。 动画可能包括逐渐改变图像的一系列小的逐步增量更改。 如果正确定时,如果增量足够小,图像的过渡可能以电影或卡通形式显得平滑。