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    • 12. 发明授权
    • Photodetector array based image analysis apparatus
    • 基于光电检测器阵列的图像分析仪器
    • US5602932A
    • 1997-02-11
    • US499712
    • 1995-07-07
    • Alan MacdonaldIan Miller
    • Alan MacdonaldIan Miller
    • H04N17/04G06K9/00
    • H04N17/04
    • Image analysis apparatus comprises a two dimensional array of photodetectors (80) for receiving light from pixels of a display screen (90). The intensity values generated by the photodetectors (80) in response to incident light from the pixels are stored in a memory (40). The photodetectors' spatial geometry is mapped onto the display screen's known pixel geometry. A processor (50) determines one or more performance parameters of the display screen (90) as a function of the intensity values stored in the memory (40) and of the photodetectors mapped spatial geometry (80). Calibration and correlation problems associated with prior art measurement techniques are avoided by mapping the spacing of the array of photodetectors onto the known geometry of the display pixel structure. Also, the apparatus can be conveniently incorporated into a handset and therefore does not require complicated positioning jigs in use.
    • 图像分析装置包括用于从显示屏(90)的像素接收光的光电检测器(80)的二维阵列。 由光电检测器(80)响应于来自像素的入射光产生的强度值被存储在存储器(40)中。 光电探测器的空间几何被映射到显示屏上已知的像素几何。 处理器(50)根据存储在存储器(40)和光电探测器映射的空间几何(80)中的强度值的函数来确定显示屏幕(90)的一个或多个性能参数。 通过将光电检测器阵列的间距映射到显示像素结构的已知几何形状来避免与现有技术测量技术相关的校准和相关问题。 此外,该装置可以方便地并入到手机中,因此不需要使用复杂的定位夹具。