红外与激光工程, 2019, 48 (11): 1113002, 网络出版: 2019-12-09   

基于相关法飞行时间三维感知的误差机理研究

Theoretical investigation on correlating time-of-flight 3D sensation error
作者单位
中国空间技术研究院, 北京 100081
摘要
飞行时间测量是三维感知系统的重要原理之一。近年来随着半导体技术的发展, 基于信号相关法的飞行时间测量系统以其无活动部件、高集成度、低功耗的优势, 在三维成像领域迅速发展。文中系统研究了基于信号相关的飞行时间测量技术的数学原理, 分析了其误差来源及其数学模型, 并进行了横向对比。研究结果表明: 飞行时间成像系统的光源误差、多路径误差和环境光是制约测量精度和适用范围的主要因素。
Abstract
Time-of-flight measurement is one of the principles of 3D sensation systems. In recent years, with the development of semiconductor technology, time-of-flight measurement systems based on the signal correlation method have developed rapidly in the field of three-dimensional imaging due to its advantages of all solid-state components, high integration and low power consumption. The mathematical principles of correlation time-of-flight measurement techniques were systematically studied, its error sources were analysed, the mathematical models were constructed, and different types of measurement errors were compared. The research results show that light source error, multipath and ambient light interference are the main factors that restrict the measurement accuracy and application range of time-of-flight imaging systems.

卢纯青, 宋玉志, 武延鹏, 杨孟飞. 基于相关法飞行时间三维感知的误差机理研究[J]. 红外与激光工程, 2019, 48(11): 1113002. Lu Chunqing, Song Yuzhi, Wu Yanpeng, Yang Mengfei. Theoretical investigation on correlating time-of-flight 3D sensation error[J]. Infrared and Laser Engineering, 2019, 48(11): 1113002.

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