发明名称 |
Methods, systems and apparatuses using barrier self-calibration for high dynamic range imagers |
摘要 |
Methods, systems and apparatuses proving a high dynamic range imager. Multiple photosensor integration periods are used to capture pixel signal information. A transistor gate is used to remove electrons from the photosensor between the two successive integration periods providing a non-linear pixel response characteristic having a knee point. Each pixel is calibrated for the knee point which is used during adjustment of the pixel output signal. Each pixel may also be calibrated with an arbitrary signal response curve for multiple light intensities.
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申请公布号 |
US7920193(B2) |
申请公布日期 |
2011.04.05 |
申请号 |
US20070976301 |
申请日期 |
2007.10.23 |
申请人 |
APTINA IMAGING CORPORATION |
发明人 |
LADD JOHN;AGRANOV GENNADIY A.;JERDEV DMITRI |
分类号 |
H04N3/14;H04N5/353;H04N5/355;H04N5/374 |
主分类号 |
H04N3/14 |
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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