发明名称 |
CMOS image sensor system with self-reset digital pixel architecture for improving SNR and dynamic range |
摘要 |
A CMOS DPS image sensor architecture for improving SNR and dynamic range is presented. The CMOS DPS architecture includes self-reset digital pixels capable of collecting more charge than the physical well capacity. A method for improving SNR without reducing dynamic range in a CMOS video sensor system under low illumination is described, wherein the CMOS video sensor system employing self-reset DPS architecture includes pixel level A/D conversion and wherein each DPS pixels is capable of resetting itself whenever a corresponding diode reaches saturation during integration time.
|
申请公布号 |
US6927796(B2) |
申请公布日期 |
2005.08.09 |
申请号 |
US20010962804 |
申请日期 |
2001.09.24 |
申请人 |
THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY |
发明人 |
LIU XINQIAO;LIM SUK HWAN;GAMAL ABBAS EL |
分类号 |
H04N5/355;H04N5/361;H04N5/363;H04N5/365;H04N5/374;(IPC1-7):H04N5/335 |
主分类号 |
H04N5/355 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|