一种新型高动态范围CMOS图像传感器结构设计
Design of a New High Dynamic Range CMOS Image Sensor Structure
乔劲轩 1魏经纬1
作者信息
- 1. 格科微电子(上海)有限公司,上海 201203
- 折叠
摘要
阐述一种新型的高动态范围CMOS图像传感器结构.在新型CMOS图像传感器中,像素包括两个具有不同感光灵敏度的光电二极管以及多个电荷-电压转换增益档位,列电路具有多个模拟电压增益档位.根据该结构和读出方法,对每个像素只进行一次信号电压的读取,可以显著缩短行读出时间,进而提高帧率.
Abstract
This paper describes a novel high dynamic range CMOS image sensor structure.In the new CMOS image sensor,the pixels include two photodiodes with different photosensitivity and multiple charge voltage conversion gain levels,and the column circuit has multiple analog voltage gain levels.According to this structure and readout method,only one signal voltage reading is performed on each pixel,which can significantly shorten the row readout time and thereby improve the frame rate.
关键词
CMOS图像传感器/高动态范围/增益自适应/高帧率Key words
CMOS image sensor/high dynamic range/gain adaptation/high frame rate引用本文复制引用
出版年
2024
NETL
NSTL
万方数据