发明名称 |
Pixel signal non-uniformity correcting device |
摘要 |
A pixel signal correcting device of a type which corrects pixel signals generated by A/D-converting signals output from a plurality of photoelectric sensor elements arrays is provided. In a calibration mode when the arrays are exposed to uniform illuminating light, the pixel signal for each pixel of the arrays is stored, and a reference pixel signal is determined based on the stored pixel signals. A correction value for each pixel is determined based on a difference between the corresponding stored pixel signal and the reference pixel signal, such that all of the correction values have the same sign. The correction values are stored and used for correcting pixel signals generated during a normal operating mode.
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申请公布号 |
US5331420(A) |
申请公布日期 |
1994.07.19 |
申请号 |
US19910766396 |
申请日期 |
1991.09.27 |
申请人 |
NIKON CORPORATION |
发明人 |
YAMANO, SHOZO;UCHIYAMA, SHIGEYUKI |
分类号 |
G02B7/34;H04N5/232;H04N5/335;H04N5/365;H04N5/372;H04N5/378;(IPC1-7):H04N5/335 |
主分类号 |
G02B7/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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