【摘要】 针对CMOS图像传感器滚筒式曝光模式,研究采用多种曝光时间,实现多线段拟合像素输出特性曲线,扩展传感器的动态范围,并改善其平滑性,提高图像清晰度;应用电源保护环、像素二次采样等方法消噪。电路选用charter 0.35μm工艺,经仿真验证满足设计要求。更多还原

【Abstract】 Aiming at the roll exposure for CMOS image sensor,a multi-time exposure mode is proposed to improve dynamic range through fitting the curve of output characteristic and also to optimize image quality by improving the smoothness of curve.Power rings,dual-sampling,etc.are applied for noise elimination.0.35 μm process is chosen.The layout has passed verification.更多还原