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    Defective pixel correction method and system
    3.
    发明公开
    Defective pixel correction method and system 有权
    Korrekturverfahren und Vorrichtungfürdefekte BIldelemente

    公开(公告)号：EP1250000A2

    公开(公告)日：2002-10-16

    申请号：EP02001705.9

    申请日：2002-01-24

    申请人： Agilent Technologies, Inc. (a Delaware corporation)

    发明人： Post, William L.

    IPC分类号： H04N5/217

    CPC分类号： H04N5/2176

    摘要： A defective pixel detection and correction mechanism (110) for use in an image sensor integrated circuit determines whether a current pixel is a defective pixel in a consistent manner from frame to frame. The defective pixel detection and correction mechanism (110) also replaces defective pixels with stable replacement values. The defective pixel detection and correction mechanism (110) has a defective pixel detection mechanism (210) that employs a look-up table (230) with defective pixel locations for providing a non-varying determination of whether a pixel is defective or non-defective. The defective pixel detection and correction mechanism also has a defective pixel correction mechanism (220) that employs a consistent replacement choice facility (254) to provide a previous pixel value in the same frame, on the same row, and a predetermined number of pixels from the current pixel location as a replacement value and a replacement unit (e.g., multiplexer) (250) for replacing the defective pixel value with the replacement value.

    摘要翻译： 在图像传感器集成电路中使用的缺陷像素检测和校正机构（110）以帧间一致的方式确定当前像素是否是缺陷像素。 缺陷像素检测和校正机构（110）还用稳定的替换值替换缺陷像素。 缺陷像素检测和校正机构（110）具有缺陷像素检测机构（210），其利用具有缺陷像素位置的查找表（230）来提供像素是否有缺陷或无缺陷的不变的确定 。 缺陷像素检测和校正机构还具有使用一致的替换选择设备（254）的缺陷像素校正机构（220），以在同一帧中在同一行上提供先前的像素值，并且将预定数量的像素从 当前像素位置作为替换值，以及替换单元（例如，多路复用器）（250），用于用替换值替换缺陷像素值。

    Defective pixel correction method and system
    5.
    发明公开
    Defective pixel correction method and system 有权
    用于缺陷像素校正的方法和装置

    公开(公告)号：EP1250000A3

    公开(公告)日：2003-03-05

    申请号：EP02001705.9

    申请日：2002-01-24

    申请人： Agilent Technologies, Inc. (a Delaware corporation)

    发明人： Post, William L.

    IPC分类号： H04N5/217

    CPC分类号： H04N5/2176

    摘要： A defective pixel detection and correction mechanism (110) for use in an image sensor integrated circuit determines whether a current pixel is a defective pixel in a consistent manner from frame to frame. The defective pixel detection and correction mechanism (110) also replaces defective pixels with stable replacement values. The defective pixel detection and correction mechanism (110) has a defective pixel detection mechanism (210) that employs a look-up table (230) with defective pixel locations for providing a non-varying determination of whether a pixel is defective or non-defective. The defective pixel detection and correction mechanism also has a defective pixel correction mechanism (220) that employs a consistent replacement choice facility (254) to provide a previous pixel value in the same frame, on the same row, and a predetermined number of pixels from the current pixel location as a replacement value and a replacement unit (e.g., multiplexer) (250) for replacing the defective pixel value with the replacement value.