国际ISO/IEC标准29158
初版2020-12
信息技术一自动识别和数据采集技术一 直接部件标识（DPM）质量指南
信息技术一自动识别和数据采集技术一直接零件标识(DMP)质量指南
ISO/IEC29158：2020（E）国际标准化组织
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目录页面
前言v引言viI范围
2规范性参考3术语和定义4符号和缩写术语5方法概述5.1与ISO/IEC15415的工艺差异5.2照明5.3倾斜同轴照明和相机位置（TCL6获取图像6.1相机位置和符号方向6.1.1元件放置6.1.290°摄像机角度的摄像机位置设置6.1.3TCL设置6.2照明环境6.2.1常规6.2.2同轴垂直（906.2.3漫反射离轴（D6.2.5两个方向（角度T 6.2.4四个方向（角度Q6.2.6单向（角度S6.2.7TCL设置6.3图像聚焦6.4景深6.5系统响应调整和反射率校准7验证符号7.1初始图像反射率7.1.1常规7.1.2初始化孔径大小7.1.3创建初始直方图7.1.4计算平均值7.1.5优化图片7.2获取测试镜像 7.2.1矩阵符号7.2.2二值化图像7.3应用参考解码算法7.3.1常规7.3.2必要时重复7.3.3继续直到结束7.4最终图像调整7.4.1常规7.4.3创建网格点直方图7.4.4测量平均光（ML7.4.5记录参数 7.4.6为符号引用解码创建二值化图像7.4.7解码8 确定对比参数
7.4.2确定具有两个孔径的网格点反射率
8.1初始化孔径大小8.2计算细胞对比度（CC
8.3 Calculatecellmodulemodulation(CMOD) 99
8.4 Calculateminimumreflectance(Rtarget)9 Grading 10C重试@91误Cell contrast（CC 109.2Minimmreflectance (Atarget 1093Celmodulation(CM 119.4Fixed pattern damage (FPD 119.5 Finali grade 1210 Commtinieatinggrade requirements and results 12C重试10误General 12d02Communication of application requirements 121013:Communicating from verifier to application 121014 Communicating the use of a proprietary decode 12Annex A MV Threshold determination method 14C重试@camera position 18sed s Sa snnu xAmBomative) Dot connecting algorithm 2227AmexE(informative) Communicating thegrade 29Amt(ormative) rossreference to ISO/IEC 15415Big因 3233C重试①错误原因
Foreword
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Commission) form the specialized system for worldwide standardization. National bodies that aremembers of ISOorIECparticipatein thedevelopment of International Standards through technicalmittees established by therespective organization to deal withparticularfields of technicalactivity.ISO and IEC technical mittees collaborateinfieldsof mutualinterest.Otherinternational organizations governmental and non-governmental in liaison with ISO and IEC alsotake part in the work.
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The procedures used to develop this document and those intended foritsfurther maintenance aredescribed in the ISO/IEC Directives Part 1. In particular the different approval criteria needed forthe different types of document should be noted. This document was drafted in accordance withthe editorial rules of the ISO/IEC Directives Part 2 (see iso ore/directives).
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Attention is drawn to the possibility that some of theelements of this document may be the subjectof patent rights. ISO and IEC shall not be held responsible for identifying any or all such patentrights. Details of any patent rights identified during the development of the document will be in theIntroduction and/or on theISOlist of patent declarations received(see iso ore/oatents)or theIEC list of patent declarations received (see httns /natents iec c).
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For an explanation of the voluntary nature of standards the meaning of ISO specific terms andfYpresions related prepaferpityassersmentaf welharinfqsationreabp uthfslis adberencht8ity SubmitteeSC31 Automaticidentificationand data capture techniques.
This first edition cancels and replaces ISO/IEC TR 29158:2011 which has been technically revised. C重试错误原因C重试@错误原因The main changes pared to the previous edition are as follows:
C重试错误原因 inclusion of continuousgrading;-expanded grading levels for minimum reflectance (firgetJ: C重试①错误原因C重试@错误原因mclusionOf a tilted lighting and camera position;-reorganizedproposed lighting options. C重试错误原因
C重试错误原因Anyfeedback orquestions on thisdocument should bedirected to theuser'snational standardsbody. A plete listing of these bodies can be found at iso ore/members html.
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