基于连续波四相位法的飞行时间(TOF)三维成像图像传感器研究

项目名称： 基于连续波四相位法的飞行时间(TOF)三维成像图像传感器研究

项目编号： No.61504141

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 无线电电子学、电信技术

项目作者： 秦琦

作者单位： 中国科学院半导体研究所

项目金额： 20万元

中文摘要： 基于连续波正交四相位法的飞行时间（Time-of-Flight，TOF）三维成像图像传感器，具有实时获取物体图像信息和距离信息的能力，在科学研究、工业生产、现代生活及国防安全等重要领域具有极为广泛的应用，因此成为世界各国竞相争夺的技术高地。. 本课题拟开展基于CMOS工艺的TOF三维成像图像传感器关键技术研究，突破现有芯片系统架构限制，探索像素器件中光生载流子的输运机制和物理效应；解决大尺寸低噪声像素中光生电荷转移速率的瓶颈问题，提出新型的像素设计方法以实现对光波飞行时间的准确测量；研究可调制光源及小型精密光学成像系统，为芯片测试和误差评估提供试验平台。. 通过对上述核心问题的研究，本课题拟提出相应的理论模型及解决方案，并最终应设计实现基于连续波正交四相位法的飞行时间（TOF）三维成像CMOS图像传感器原型芯片，填补我国在此项研究上的空白。

中文关键词： 飞行时间；图像传感器；深度测量

英文摘要： A Time-of-Flight depth image sensor, based on continuous-wave and four-phase measuring method, has the capability of image acquisition and depth measurement during the same time. It is greatly demanded in applications such as: scientific research, industrial process, modern life and national security. Because of these advantages, the TOF depth image sensor soon becomes the most popular issue in CMOS image sensor research. .This project is about to focus on the key technologies of TOF CMOS depth image sensor. To achieve accurate measurement, firstly, we should put forward a new chip architecture and research on the transfer mechanism of photo-induced carrier. The next step is to develop a new design method of pixel, in order to solve the problem of low charge transfer speed in large scale pixels. We should also study on modulated optical source and compact precision imaging system，which provided us with an experimental platform for chip testing and error evaluation..After in-depth study on these key technologies, this project will eventually work out a prototype TOF depth image sensor. It is also hopefully some device models would be proposed, which could give us theoretical directions in the future design. All the effort makes on this research would also help us to follow up the latest technology trend.

英文关键词： Time-of-Flight;Image Sensor;Depth Measurement