发明名称 |
Sensitivity compensating method for solid-state image pickup element used in electronic still camera |
摘要 |
A method for compensating changes which would otherwise be produced in a video output signal when the shutter speed exceeds a certain value, even though the same light level of the received image is maintained on the image pickup. In one embodiment, the shutter speed and/or aperture setting are adjusted to compensate. The amplification factor of the output video signal can also be adjusted. In other embodiments, gamma correction is effected separately for each primary color signal to compensate for the changes which affect the color signals in different amounts as the shutter speed is increased.
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申请公布号 |
US4825293(A) |
申请公布日期 |
1989.04.25 |
申请号 |
US19870109014 |
申请日期 |
1987.10.16 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
KOBAYASHI, KIYOTAKA;TABEI, MASATOSHI;ARASHI, MADOKA;MIZOBUCHI, YUZO |
分类号 |
H04N5/235;(IPC1-7):H04N5/235 |
主分类号 |
H04N5/235 |
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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