基于ARM平台的深度图像采集程序设计与实现摘要在当今这一智能化的信息时代，三维图像采集技术发展迅猛，应用广泛。通过镜头对目标进行识别、跟踪和测量，之后再做进一步的图像处理，得到适合人类观察或机器识别的图像是三维图像采集的主要作用。目前关于深度信息采集的研究方法有多种，包括：三角测量法、TOF测距、干涉法和结构光。本课题主要研究的是基于ARM平台的深度图像采集系统，其测量原理是通过计算发射信号与返回信号的相位差，进而得到各像素点的距离，实现三维图像的实时获取。主要完成的工作包括以下几点：(1)了解TOF测距技术在国内外的发展现状，查阅资料了解不同三维信息采集方法及其优缺点，根据设计要求，制定完整的系统设计方案。(2)掌握epc610芯片的TOF测距原理，各引脚参数，寄存器的读写命令字以及LED调制，绘制epc610采集系统的电路图。(3)编写并调试程序实现图像数据的采集与处理，得到最终的三维信息，解决零点漂移，积分时间的选择等关键问题。(4)完成在不同条件下的数据测量，计算测量精度，结合理论知识对结果进行分析，得出结论。关键词：三维图像采集；TOP测距；积分时间；调制光；SPI基于ARM平台的深度图像采集程序设计与实现Design and implementation of depth image acquisition progamebase on ARM platformAbstractIn today's intelligent information age,three-dimensional image acquisition isdeveloping rapidly and used widely.Through the lens to identify,track and measurethe target,and then do further image processing,the pictures which get suitable forhuman observation or machine identification are the main role of three-dimensionalimage acquisition.At present,there are several research methods on the depth ofimage acquisition,including triangulation,TOF ranging,interferometry and structurallight.The subject mainly study a image acquisition system based on the ARMplatform,the measurement principle is phase difference calculated by thetransmission signal and the return signal,and then the distance of each pixel is gotten.The main work of thesis is as follows:(1)Understand the development of TOF distance measurement technology at homeand abroad,access to information to understand the different three-dimensionalinformation collection methods and their advantages and disadvantages.According tothe design requirements,a complete system design is formulated.(2)Master the epc610 chip TOF ranging principle,the pin parameters,register readand write command words and LED modulation,drawing epc610 acquisition systemcircuit diagram.(3)Prepare and debug the program to achieve the image data collection andprocessing,get the final three-dimensional information to solve the zero drift,thechoice of integration time and other key issues.(4)Complete the measurement of data in different conditions,calculate the measure-ment accuracy,combine with the theoretical knowledge to analysis experimentalresult,and draw conclusions.Key words:3D image acquisition;TOF ranging;integration time;modulated light;SPI基于ARM平台的深度图像采集程序设计与实现目录摘Abstract..II引221.1.1课题来源..21.1.2研究目的..21.1.3研究意义...21.2国内外研究现状....31.3论文的主要研究和结构41.3.1主要研究内容.41.3.2论文结构安排52系统的测量原理.·62.1不同深度测量方法概述及比较62.1.1三角测量法62.1.2结构光..672.2系统测量原理710103.2系统测量解决的关键问题.…103.3系统测量的整体方案103.4各项性能指标分析…133.4.1距离分辨率、可确定距离与调制光频率的关系....·131414164.1epc610传感器模块...164.1.1片上系统组成及特点......16