发明名称 |
OFFSET, GAIN AND BAD PIXEL CORRECTION IN ELECTRONIC SCANNING ARRAYS |
摘要 |
<p>Method and apparatus for a wide range of correction of photosite offset and gain. Each photosite is provided with a correction value for offset and gain based on measured light intensity value. Each photosite correction value is also provided with an attribute value which is detected by a decoder (208) and indicates (i) whether the correction values are to be used as stored (in a memory 200); (ii) whether a shift of the values (by shift means 210a, 210b) is appropriate, in accordance with a shift value stored in a shift memory (212); or (iii) whether the photosite is non-correctable, and accordingly requires the implementation by an output selector (214) of a bad pixel routine comprising the substitution of an approximated photosite response derived at a bad pixel correction device (218).</p> |
申请公布号 |
EP0350328(A3) |
申请公布日期 |
1991.10.09 |
申请号 |
EP19890306931 |
申请日期 |
1989.07.07 |
申请人 |
XEROX CORPORATION |
发明人 |
LIN, YING-WEI;CALARCO, ANTHONY F. |
分类号 |
G06T1/00;H04N1/04;H04N1/401;H04N1/409;H04N5/365;H04N5/367;H04N5/369;(IPC1-7):H04N1/40 |
主分类号 |
G06T1/00 |
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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