← 返回 JSSC 论文列表JSSC 2019第4期Image SensorsCMOS Image Sensor
A Time-Resolved NIR Lock-In Pixel CMOS ImageSensor With Background Cancelling Ca
一种具有背景光消除功能的近红外锁相像素CMOS图像传感器，用于远程心率检测。
1024×1280分辨率，30fps帧率，134.8ke-/lux·s灵敏度，1.13e-rms噪声
CMOS图像传感器近红外锁相像素心率检测背景光消除
▸采用双抽头近红外锁相像素实现时间分辨成像
▸集成横向电场电荷调制器实现90.1%的电荷调制比
▸在复杂环境光条件下实现98%以上的心率检测准确率
Abstract
This paper presents a time-resolved (TR) CMOS
image sensor (CIS) using two-tap near-infrared (NIR) lock-in
pixels with background light (BGL) cancelling capability for
remote heart rate (HR) detection. Aimed to the application,
the sensor features a 1024 (V) × 1280 (H) spatial resolution with
412 (V) × 1280 (H) region-of-interest-readout (ROI-readout) at
30 fps, a high sensitivity of 134.8 ke
−/lux · s, and an ultra-
low temporal random noise of 1.13 e −rms at analog gain of 64.
A maximum charge