光学字符阅读纸检测

GB/T 5271.12-2000信息技术 词汇第12部分:外围设备

为方便信息处理方面的交流，特制定此部分标准。本标准给出了与信息处理领域相关的概念的术语和定义，并明确了这些条目之间的关系。 为方便将此标准翻译成其他语言，给出的定义尽可能避免语言上的特殊性。 本标准定义了数据媒体、存储器、磁带及打印机等概念。

GB/T 12508-1990光学识别用字母数字字符集 第2部分:OCR-B 字符集 印刷图象的形状和尺寸

本标准规定了印刷图象的形状和尺寸，它既符合人们阅读的习惯，又适用于机器的读出，以便易于和促进光学字符识别（OCR）在数据处理中的应用。 本标准规定了用于光学字符识别的字母数字字符、图形和符号的印刷图象的形状和尺寸，也适用于一般的用途。 所设计的OCR-B的字符形状，既适用于OCR系统，且在更广泛的应用范围内也适用于一般的用途，而不至于造成过分的不方便。OCR-B的字符大小用三种尺寸给出。

GB/T 18725-2008制造业信息化.技术术语

本标准定义了制造业信息化领域所用的有关技术术语，包括信息技术基础理论部分的基本术语和信息技术在制造业中应用部分的技术术语，以及国内技术市场上出现的新的词汇。本标准适用于与制造业信息化技术有关的科研、生产、工程、管理、经营、教育等部门。本标准技术内容支持现代设计工程和企业信息化所要求的设计、制造、管理、集成、通信互连、网络及相关信息技术等方面的术语。

GB/T 20225.1-2017电子文档管理 词汇 第1部分:电子文档成像

GB/T 20225的本部分旨在方便电子文件管理领域内的交流和术语的翻译。本部分通篇所用的“电子文档管理”是作为输入技术(扫描、索引、光学字符识别、格式、数字生成等)、管理技术(文档服务、工作流及其他工作管理工具)以及存储(主要是光学存储或磁存储)技术的通用术语。

GB/T 22821-2008光学字符阅读纸

本标准规定了光学字符阅读纸的产品分类、技术要求、试验方法、检验规则和标志、包装、运输、贮存。本标准适用于光电录入技术所用的光学字符阅读纸。

GB/T 30536-2014文献成像应用 对原始文件制作的建议

本标准规定了印刷文献的原件制作指导,以便更易被缩微复制或影像扫描复制。虽然本标准更多是针对具体的拉丁字母,但是其一般原则也适用于使用其他字母或意符的文献制作。本标准不适用于GB/T 14689和GB/T 10609.4中给出的技术制图的条件。同样也不适用于特殊的缩微影像技术或相关的扫描使用(银行支票或条码扫描)。

NB/T 20271-2014核电厂退役需要的文件和记录的维护与保存要求

本标准规定了收集、筛选、保存和维护核电厂退役需要的文件和记录的方法及一般要求。本标准主要适用于核电厂业主和(或)营运单位对核电厂退役需要的文件和记录的管理,其他核设施退役可参照执行。

BS EN 13619-2002邮政服务.邮件处理.处理信件的光学特征

This European Standard specifies optical characteristics for processing letters and gives guidelines on the valuesof these attributes that will assure a high level of address readability. It is aimed at facilitating relations betweenPostal Operators and Customers by providing information that mailers can use to ensure that the addresses theyprint can be processed successfully by postal automation systems.The standard is intended to support:¾assessment of the probable readability of a printed address, using given address recognition equipment,without actually submitting it to the equipment;¾determination of the changes in address printing characteristics that are required to achieve a desired level ofaddress readability using given address recognition equipment;¾assessment of the complexity, and thus the cost, of the address recognition equipment needed to achieve adesired level of readability of addresses with given printing characteristics.The standard applies to mail items whose size is up to and including C51, but may also be applied to oversizeitems, commonly referred to as C5+, and to flats. The address blocks covered are:¾the delivery address block;¾the sender address block if this is printed on the same side of the mail item as the delivery address block.The guidelines provided in the standard apply to address blocks as they appear on finished mail items whensubmitted to postal operators, and not just to addresses and the substrate on which they are printed. Users of thestandard are responsible for determining the physical parameters which are required to achieve compliance aftertaking account of characteristics which result from mail item features, other than printing, such as covering, the useof transparent window envelopes and the use of address labels.The guidelines are based on physical attributes that tend to influence the readability of addresses by opticalcharacter recognition (OCR) equipment and by video-coders. To the extent that this is possible, attributes havebeen selected so as to be easily controllable and to be measurable using simple, low-cost, means. The attributevalues given are based on common notions of typography and on colour reference systems that are likely to beknown by mailers. The values given should be interpreted as recommendations or guidelines, not as strict,mandatory, all-or-nothing rules.OCR systems are complex and their behaviour is therefore not easily modelled by simple attributes. As a result theambition of the standard is limited by the difficulty of defining some attributes in formal terms, even though theirinfluence on address readability has been proven. Where this is the case, the standard uses examples, lists ofpreferred values, or literal descriptions to give hints on how to maximise address readability.Since all attributes do not contribute uniformly to the readability of an address, the standard identifies two levels ofsalience for each attribute (high and normal). These two levels are designed to aid in the definition of readabilityclasses by users of the standard.This standard considers a printed address as being made up of a series of lines of printed information2. Guidelinesrelated to such address lines are relevant for all lines in an address block.