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    • 11. 发明申请
    • Sequenced Illumination
    • 顺序照明
    • US20100128964A1
    • 2010-05-27
    • US12277936
    • 2008-11-25
    • Ronald Bruce Blair
    • Ronald Bruce Blair
    • G06K9/00
    • G06K9/2027G06K9/2018G07D7/121G07D7/205
    • The present invention provides a method and system for imaging documents such as bank notes. The method comprises passing a document past an image sensor such as a line scan camera while sequentially illuminating the document using multi-mode illumination. Two or more light sources are used, each one producing a different mode of illumination. A lookup table divides documents into discrete successive sections (i.e. scan lines) and specifies a mode of illumination (e.g., color, azimuth, reflective, transmissive) for each section of a document during imaging. As the document passes the image sensor, the light sources are activated according to the sequence specified in the lookup table, producing an interleaved, multi-mode image of the document.
    • 本发明提供了一种用于成像诸如纸币的文档的方法和系统。 该方法包括使文档通过诸如行扫描照相机的图像传感器,同时使用多模式照明顺序地照亮文档。 使用两个或更多个光源,每个光源产生不同的照明模式。 查找表将文档划分成离散的连续部分(即扫描线),并且在成像期间指定文档的每个部分的照明模式(例如,颜色,方位,反射,透射)。 当文档通过图像传感器时,光源根据查找表中指定的顺序被激活,产生文档的交织的多模式图像。
    • 14. 发明授权
    • Sequenced illumination
    • 顺序照明
    • US08780206B2
    • 2014-07-15
    • US12277936
    • 2008-11-25
    • Ronald Bruce Blair
    • Ronald Bruce Blair
    • H04N7/18
    • G06K9/2027G06K9/2018G07D7/121G07D7/205
    • The present invention provides a method and system for imaging documents such as bank notes. The method comprises passing a document past an image sensor such as a line scan camera while sequentially illuminating the document using multi-mode illumination. Two or more light sources are used, each one producing a different mode of illumination. A lookup table divides documents into discrete successive sections (i.e. scan lines) and specifies a mode of illumination (e.g., color, azimuth, reflective, transmissive) for each section of a document during imaging. As the document passes the image sensor, the light sources are activated according to the sequence specified in the lookup table, producing an interleaved, multi-mode image of the document.
    • 本发明提供了一种用于成像诸如纸币的文档的方法和系统。 该方法包括使文档通过诸如行扫描照相机的图像传感器,同时使用多模式照明顺序地照亮文档。 使用两个或更多个光源,每个光源产生不同的照明模式。 查找表将文档划分成离散的连续部分(即扫描线),并且在成像期间指定文档的每个部分的照明模式(例如,颜色,方位,反射,透射)。 当文档通过图像传感器时,光源根据查找表中指定的顺序被激活,产生文档的交织的多模式图像。