专利名称：Bad pixel detection and correction in an
image nsing device
发明人：Baharav, Izhak,Kakarala, Ramakrishna,Zhang,
Xuemei,Vook, Dietrich Werner
申请号：EP02004892.2
申请日：20020304
公开号：EP1271933A3
公开日：
20030528祝寿四字成语
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专利附图：
摘要：A nsor (100) includes an array of photodetectors (102) each generating an output signal of
pixel data (108) indicative of incident light intensity. This pixel data (108)is read out from the array one line at a time and stored in a line buffer (104). A bad pixel processor (110) includes a first buffer (104) that stores pixel data (108) obtained from the line buffer (116) for a certain pixel in a currently read out line and pixel signal light data for pixels adjacent to the certain pixel. An included cond buffer (122) stores features that are indicative of whether the pixels in a previously read out line were identified as bad pixels. Using the information in the first and cond buffers, the
哈尔滨导游processor (110) identifies whether the certain pixel is a bad pixel. In one operation, the水瓶座女人
processor (110) precludes any finding of the certain pixel as being a bad pixel if the features in the cond buffer (122) indicate that a pixel in the previous line that is adjacent to the certain pixel in the current line was identified as a bad pixel. In another operation, the processor (110) applies a variable detection threshold against the certain pixel, with the value of that threshold being t higher if the features in the cond buffer (122) indicate that a pixel in the previous line that is adjacent to the certain pixel in the current line was identified as a bad pixel. When a bad pixel is detected, a correction algorithm is executed to replace the pixel data (108) for the bad pixel with data that more accurately reprents, estimates or approximates the intensity of the light that is incident on the photodetector.
申请人：Agilent Technologies, Inc. (a Delaware corporation)
地址：395 Page Mill Road Palo Alto, CA 94303 US
除法的公式
小炒肉做法国籍：US
代理机构：Liegang, Evadpark
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