CMOS image sensor with optimal video sampling scheme
CMOS image sensor with optimal video sampling scheme
复制标题
具有最佳视频采样方案的 CMOS 图像传感器
DOI：
10.1007/s11432-011-4495-1
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Hongda Chen
中科院分区：
文献类型：
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作者：
Ning Guan;Xu Zhang;Bo Liu;Zan Dong;Beiju Huang;Yun Gui;Jianqiang Han;Y. Wang;Zanyun Zhang;Hongda Chen
焦平面上的时变照明是三维信号。多维采样理论证明，通过改变采样方案，可以在保持空间分辨率不变的情况下，最大限度地提高时间分辨率。在此基础上，采用0.35 μ m2P4M CMOS工艺设计了一个多场CMOS图像传感器原型。4×4像素簇中的相应像素在整个阵列上被组装成16个场。像素的控制引脚（复位和快门）是分开的，这提供了以最佳采样方案对照明进行采样的能力。
Time-varying illumination on the focal plane is a three-dimensional signal. Multidimensional sampling theory proves that the temporal resolution can be optimally improved by a factor ofwhile the spatial resolution is reserved by changing the sampling scheme. Based on the theory, a prototype multi-field CMOS image sensor (CIS) is designed for a 0.35-μm 2P4M CMOS process. Corresponding pixels in 4×4-pixel clusters are assembled into 16 fields over the whole array. Control pins (resets and shutters) of pixels are separated which provides the ability of sampling the illumination with the optimal sampling scheme.