BS ISO 11962-2002 Micrographics - Image mark (blip) used with 16 mm and 35 mm roll microfilm《缩微照相 16 mm和35 mm成卷缩微胶片使用的图象标记(标志)》.pdf

1、BRITISH STANDARDBS ISO 11962:2002Incorporating corrigendum no. 1Micrographics Image mark (blip) used with 16 mm and 35 mm roll microfilmICS 37.080g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3

2、g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS ISO 11962:2002This British Standard, having been prepared under the direction of the Disc Board, was published under the authority of the Standards Policy and Strategy Committee on 6 August 2002 BSI 2007ISBN 0 580 40191 XNational forewordThis British

3、Standard was published by BSI. It is the UK implementation of ISO 11962:2002.The UK participation in its preparation was entrusted to Technical Committee IDT/1, Document imaging applications, to Subcommittee IDT/1/2, Applications.A list of organizations represented on IDT/1/2 can be obtained on requ

4、est to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date Comments1

5、6934 Corrigendum No. 128 February 2007 Revision of National forewordINTERNATIONALSTANDARDISO11962First edition2002-08-01Reference numberISO 11962:2002(E)Micrographics Image mark (blip) used with 16 mm and 35 mm roll microfilmMicrographie Repre dimage (pav optique) utilis avec des microfilms en roule

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9、a thserdda es igvne olebw.iiiForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISOmember bodies). The work of preparing International Standards is normally carried out through ISO technicalcommittees. Each member body interested

10、in a subject for which a technical committee has been established hasthe right to be represented on that committee. International organizations, governmental and non-governmental, inliaison with ISO, also take part in the work. ISO collaborates closely with the International ElectrotechnicalCommissi

11、on (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.Publication as an Inte

12、rnational Standard requires approval by at least 75 % of the member bodies casting a vote.Attention is drawn to the possibility that some of the elements of this International Standard may be the subject ofpatent rights. ISO shall not be held responsible for identifying any or all such patent rights

13、.International Standard ISO 11962 was prepared by Technical Committee ISO/TC 171, Document imagingapplications, Subcommittee SC 2, Application issues.BS ISO 11962:2002blank1Micrographics Image mark (blip) used with 16 mm and 35 mm roll microfilm1 ScopeThis International Standard specifies the locati

14、on, size, and density of single-size image marks and small, medium,and large image marks recorded on and microfilm for use in image-mark retrieval systems. It appliesto and microfilm used in a retrieval system, regardless of the method and equipment used to generatethe original or duplicate microfil

15、m.2 Normative referencesThe following normative documents contain provisions which, through reference in this text, constitute provisions ofthis International Standard. For dated references, subsequent amendments to, or revisions of, any of thesepublications do not apply. However, parties to agreeme

16、nts based on this International Standard are encouraged toinvestigate the possibility of applying the most recent editions of the normative documents indicated below. Forundated references, the latest edition of the normative document referred to applies. Members of ISO and IECmaintain registers of

17、currently valid International Standards.ISO 5-2:2001, Photography Density measurements Part 2: Geometric conditions for transmission densityISO 5-3:1995, Photography Density measurements Part 3: Spectral conditions3 Terms and definitionsFor the purposes of this International Standard, the terms and

18、definitions given in ISO 6196 apply.4 Location of image marks4.1 Image mark channelThe width of a channel when measured from the nearest edge of the microfilm shall be not less than (seeFigure 2). The channel shall be reserved for blip marks and microfilm control codes and shall be kept free ofdocum

19、ent images, numbers and extraneous marks.4.2 Document image area16 mm 35 mm16 mm 35 mm2,16 mmBS ISO 11962:2002ISO 6196-1:1993, Micrographics Vocabulary Part 1: General terms ISO 6196-2:1993, Micrographics Vocabulary Part 2: Image positions and methods of recording ISO 6196-3:1997, Micrographics Voca

20、bulary Part 3: Film processing ISO 6196-4:1998, Micrographics Vocabulary Part 4: Materials and packaging ISO 6196-5:1987, Micrographics Vocabulary Part 5: Quality of images, legibility, inspection ISO 6196-6:1992, Micrographics Vocabulary Part 6: Equipment ISO 6196-7:1992, Micrographics Vocabulary P

21、art 7: Computer micrographics ISO 6196-8:1998, Micrographics Vocabulary Part 8: Use” Image marks shall be arranged in either of the following ways (see Figure 1). In a channel along either the bottom or top edge of the microfilm. Images may be in either simplex or duplex format as defined in ISO 619

22、6-2. Either format can be used in either the lower (A) channel or the upper (B)channel. For single channel use, the lower, channel A, is more often used. In two channels, channel A along the bottom edge of the microfilm and channel B along the top edge. Imagemarks start from the start of the film in

23、 channel A, run with increasing count to the end of the film, then continuefrom the end of the film back to the start of the film in channel B.” Document images shall not extend to less than 2,16 mm from the film edge if an image mark channel is used along that edge (see Figure 2). 2 Dimensions in m

24、illimetresFigure 2 Image mark location with reserved channelBS ISO 11962:2002a) Single channel for simplex or duplex format b) Single channel for simplex or duplex format c) Two channel for duo or duo duplex format Key 1 leading end of microfilm 2 image area Figure 1 Permissible channel locations 3P

25、osition of image marksEach image mark shall be entirely within the image mark channel.The image mark shall be positioned in the image mark channel, in either of the following positions:a) with its leading edge aligned with the leading edge of the document image;b) with its leading edge between the l

26、eading edge and trailing edge of the document image in a consistent position.Position a) is strongly preferred.If a large image mark extends beyond the trailing edge of the document image, its leading edge shall align with theleading edge of the document image.SpacingThe space between image marks sh

27、all be not less than (see Figure 2).5 Dimensions of image marksLengthThe lengths of single-size image marks and small, medium and large image marks shall be as shown in Table 1. Thelength of each type of image mark shall be uniform throughout the microfilm.HeightThe height of the image mark measured

28、 across the film shall be a minimum of but not exceed andmay not extend beyond the allowable channel width. (See Figure 2.)6 DensitiesThe densities of image mark and background shall be as shown in Table 2.Table 1 Image mark lengthsDimensions in millimetresSingle-size mark Small mark Medium mark Lar

29、ge markMinimum 0,6 0,6 2,2 4,2Preferred 0,7 0,7 2,3 4,3Maximum 7,9 1,3 3,1 7,90,69 mm1,14 mm 2,16 mmBS ISO 11962:2002Splices 4.3If the microfilm is spliced, the splice shall not alter or obscure any part of any image mark, nor result in marking that could be interpreted as an image mark by retrieval

30、 devices. For example opaque tape is not permitted.4.4The distance from the leading edge of the image mark to the leading or trailing edge of the document image, whichever is selected as the reference edge of the document image, measured parallel to the edge of the microfilm,shall be uniform within

31、0,15 mm throughout the roll of microfilm. 4.5Image marks shall be either single size marks throughout the microfilm, or small and medium marks throughout the microfilm or small, medium and large marks throughout the microfilm. The latter two options allow more sophisticated searches. Medium and larg

32、e marks as a combination is not recommended.5.1 Types of image mark 5.25.35.4 Image mark positioning An image mark shall be positioned such that it at least covers an area that is not greater than 1,02 mm from theedge of the microfilm to not less than 1,86 mm from that edge. It shall not extend more

33、 than 2,16 mm from thatedge (see Figure 2). 4 7 Microfilm control code7.1 GeneralMicrofilm control code is machine-readable code used in some retrieval equipment to identify the roll of microfilm andto control or modify the operation of the equipment. It may comprise start codes, stop codes and data

34、 codesenclosed on the microfilm in various combinations of image marks and spaces.7.2 Code characteristics7.2.1 Density, code channel and polarityDensity, code channel and polarity shall conform to the specifications for image marks.7.2.2 Start codes7.2.3 Stop codes7.2.4 Data codesData codes shall b

35、e located between the start and stop codes and shall consist of image marks and spaces of thesame length as those specified for small, medium or large image marks.8 SymbolsIf symbols are used, they shall occupy one or more frames at the beginning of the roll before the start code.Images of symbols s

36、hall not encroach into the image mark channel(s).It is preferred that frames containing symbols do not contain image marks so that the search parameter settings aremaintained.Table 2 Transmission densities of image marksDimensions in millimetresType of microfilmMinimum density of the opaque areaMaxi

37、mum density of the clear areaSilver halidea1,0 0,25Diazoa1,0 0,20Thermally processed silver a1,25 0,45Vesicular b1,4 0,25aVisual diffuse transmission density measured as specified in ISO 5-2 and ISO 5-3.bVisual projection transmission density measured as specified in ISO 5-2.BS ISO 11962:2002Start c

38、odes shall comprise one or more image marks. Each mark shall be at least 8,7 mm long and precededby a space equal to or greater than the length of a small image mark. Stop codes shall comprise one or more image marks. Each shall be at least 8,7 mm long and preceded by a spaceequal to or greater than

39、 the length of a small image mark. blankBS ISO 11962:2002BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorp

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