发明名称 |
IMAGE SENSOR DRIVING APPARATUS, METHOD AND RADIATION IMAGING APPARATUS |
摘要 |
An image sensor driving apparatus extracts an image signal from an image sensor including a plurality of photoelectric conversion elements two-dimensionally arrayed, and includes a conversion unit which converts the image signal into digital data by performing offset correction for the image signal. The apparatus obtains digital data corresponding to a first sampling count by causing the conversion unit to process a reference voltage signal in accordance with a synchronization signal which determines an imaging frame rate, and obtains digital data corresponding to a second sampling count by causing the conversion unit to process a reference voltage signal every time extracting an image signal from a photoelectric conversion element group obtained by dividing a plurality of photoelectric conversion elements. The apparatus generates a correction value used for offset correction based on the obtained digital data corresponding to the first and second sampling counts. |
申请公布号 |
US2017019617(A1) |
申请公布日期 |
2017.01.19 |
申请号 |
US201615281448 |
申请日期 |
2016.09.30 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
Dowaki Kanako;Naito Yuichi;Matsumoto Kazumasa;Yamazaki Takashi |
分类号 |
H04N5/357;H04N5/365;H04N5/32;H04N5/217;H04N5/378 |
主分类号 |
H04N5/357 |
代理机构 |
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代理人 |
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主权项 |
1. (canceled) |
地址 |
Tokyo JP |