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；TOF测距；积分时间；调制光；SPIDesignandimplementationofdepthimageacquisitionprogameIbaseonARMplatformAbstractIntoday'sintelligentinformationage,three-dimensionalimageacquisitionisdevelopingrapidlyandusedwidely.Throughthelenstoidentify,trackandmeasurethetarget,andthendofurtherimageprocessing,thepictureswhichgetsuitableforhumanobservationormachineidentificationarethemainroleofthree-dimensionalimageacquisition.Atpresent,thereareseveralresearchmethodsonthedepthofimageacquisition,includingtriangulation,TOFranging,interferometryandstructurallight.ThesubjectmainlystudyaimageacquisitionsystembasedontheARMplatform,themeasurementprincipleisphasedifferencecalculatedbythetransmissionsignalandthereturnsignal,andthenthedistanceofeachpixelisgotten.Themainworkofthesisisasfollows:(1)UnderstandthedevelopmentofTOFdistancemeasurementtechnologyathomeandabroad,accesstoinformationtounderstandthedifferentthree-dimensionalinformationcollectionmethodsandtheiradvantagesanddisadvantages.Accordingtothedesignrequirements,acompletesystemdesignisformulated.(2)Mastertheepc610chipTOFrangingprinciple,thepinparameters,registerreadandwritecommandwordsandLEDmodulation,drawingepc610acquisitionsystemcircuitdiagram.(3)Prepareanddebugtheprogramtoachievetheimagedatacollectionandprocessing,getthefinalthree-dimensionalinformationtosolvethezerodrift,thechoiceofintegrationtimeandotherkeyissues.(4)Completethemeasurementofdataindifferentconditions,calculatethemeasure-mentaccuracy,combinewiththetheoreticalknowledgetoanalysisexperimentalresult,anddrawconclusions.Keywords:3Dimageacquisition;TOFranging;integrationtime;modulatedlight;SPIII目录摘要............................................................IAbstract...........................................................II引言............................................................11绪论.............................................................21.1选题...........................................................21.1.1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......................................
