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1. 发明授权

US5408535A Video test strip reader and method for evaluating test strips 失效
标题翻译：视频测试条读取器和评估测试条的方法
公开(公告)号：US5408535A
公开(公告)日：1995-04-18
申请号：US117782
申请日：1993-09-07
申请人： Willis E. Howard, III , Dijia Huang , Robert W. Rogers , Gerald H. Shaffer , Mark A. Yoder
发明人： Willis E. Howard, III , Dijia Huang , Robert W. Rogers , Gerald H. Shaffer , Mark A. Yoder
IPC分类号： G01N33/52 , G01N21/78 , G01N21/84 , G01N21/86 , G01N31/22 , G01N35/00 , H04N7/18 , G06K9/00 , G01N21/01
CPC分类号： G01N21/8483 , G01N2021/177 , G01N2035/00108 , Y10T436/11
摘要： A video test strip reader uses a video imager or camera for viewing a viewing field containing reagent test strips each having test pads reacted with a specimen containing constituents of interest. The video imager produces an analog signal representing an image of the viewing field. An image handler coupled to the video imager converts or digitizes the analog signal into a digital signal representing the image and stores the image in the form of an array of pixels representing the image. Each pixel contains color information broken down into red, green or blue (RGB). A processor coupled to the image handler analyzes the array of pixels, determines the location and orientation of a test strip, identifies the test areas on the test strip, measures the corresponding test areas on the strip at the proper times and calculates the test results, such as the concentration of the constituents of interest in the specimen or other measurable properties of the specimen such as color or specific gravity, etc. Accordingly, the video test strip reader can simultaneously locate, color analyze and time track multiple test strips on the viewing field.
摘要翻译：视频测试读取器使用视频成像器或相机来观看包含试剂测试条的观察区，每个测试条具有与包含感兴趣的成分的样本反应的测试垫。视频成像器产生表示视野的图像的模拟信号。耦合到视频成像器的图像处理器将模拟信号转换或数字化为表示图像的数字信号，并以表示图像的像素阵列的形式存储图像。每个像素包含分为红色，绿色或蓝色（RGB）的颜色信息。耦合到图像处理器的处理器分析像素阵列，确定测试条的位置和方位，识别测试条上的测试区域，在适当的时间测量条带上相应的测试区域并计算测试结果，例如样品中感兴趣的组分的浓度或样品的其他可测量性质如颜色或比重等。因此，视频测试条读取器可以同时定位，颜色分析和时间跟踪多个测试条在观看领域。

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