A Dynamic Pseudo 4-Tap CMOS Time-of-Flight Image Sensor with Motion Artifact Suppression and Background Light Cancelling Over 120klux

📋 论文概要

该论文提出了一种动态伪4抽头CMOS飞行时间图像传感器，通过创新的像素架构和时序控制，有效抑制了运动伪影并实现了背景光消除，从而提高了深度测量的准确性。

💡 主要创新点

• 提出动态伪4抽头像素架构，通过时序调制实现多相位采样，减少运动伪影。
• 集成背景光消除电路，在像素级抑制环境光干扰，提升信噪比。

🏷 关键词

📄 原文摘要

Jihoon Park1, Yeonsoo Ahn1, Kihwan Cho1, Jungsoon Shin3, Seung Min Song3, Seong-Jin Kim2, Jung-Hoon Chun1, Jaehyuk Choi1 Sungkyunkwan University, Suwon, Korea Ulsan National Institute of Science and Technology, Ulsan, Korea 3 Zeeann, Hanam, Korea 1 2 An indirect time-of-flight (iToF) CMOS image sensor (CIS) is a device that provides depth as well as a two-dimensional shape of an object by measuring the phase difference of reflected pulse trains of light. Because the iToF CIS offers high spatial resolution from the scaled photodetectors such as pinned photodiodes (PPD) [1] or photogates [2], as well as high depth accuracy, it is advantageous for object or gesture recognition with higher accuracy compared with conventional 2D imagers. Even though iToF CISs have been limited to indoor applications, such as gaming, they have a strong demand for outdoor applications that include 3D face recognition and augmented reality for mobile devices, gesture recognition

👥 作者与机构

Donguk Kim1, Seunghyun Lee2, Dahwan Park2, Canxing Piao1,