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1、J I S X*O 91 4933b08 0505176 942 a e a a UDC 003.324.2:681.327.12 JIS JAPANESE INDUSTRIAL STANDARD Handprinted HIRAGANA characters for Optical Character Recognition Translated and Published by Japanese Standards Association Printed in Japan 14 S Copyright Japanese Standards Association Provided by I
2、HS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:40:27 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS X.U009 91 4933b08 0505177 889 0 In the event of any doubt arising, the original Standard in Japanese is to b
3、e final authority. e Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:40:27 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S X * O O 91 9 4933608 0505178 71
4、5 = UDC 003.324.2:681.327.12 JAPANESE INDUSTRIAL STANDARD J I S Handprinted HIRAGANA characters for Optical x 9009-1991 Character Recognition 1. Scope .- This Japanese Industrial Standard specifies the character form of handprinted HIRAGANA t o be used for Optical Character Recognition (hereafter, r
5、eferred t o as OCR) as w e l l as the specification of lateral and vertical writing relating t o this. Informative reference: The character form of handprinted K A N J I for OCR and items relating t o this are shown as informative reference. 2. Definitions For the purpose of this standard, the follo
6、wing definitions of terms apply ( 4 ) (7) character form Actual graphics realized at writing or printing. character style This is the general idea of characters i n the base of expressed character form and designates the manner of points and strokes as elements t o discriminate individual characters
7、. Namely, the character style is abstract and is expressed as character form i n reality. line element individual character form. Line written i n one stroke of pen constructing line width Width of line element. clearance constructing character form. Significant blank t o be held between line elemen
8、ts projection t o be reference when two line elements intersect or contact at one point. Part of line element projected from intersection with line This is recognized i n character form such as “ W O bh d a C;t: 3 dsI ;t. M, G + k dz k, 2 8 , B m b + , 1 1 , HANE (Sweep) from end part of one line el
9、ement t o other line element. Additional part indicating transition i n writing order I l This is recognized i n character form of I d , . Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08
10、:40:27 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S X*9009 91 m 4933608 8505179 651 m 2 x 9009-1991 short line element constructed with plural line elements. Relatively short line element i n character form This is recognized in character form i n “ i X. f- 2 J . h
11、i. + C, ,(comma) 5 t +. microloop intersection of same line elements. Minute closed range generated by connection or This is recognized i n character form of it t r h ta k k 1 1 3 ZA 0 k EJ o (period) dc, A & l . form process chart reference side reading. vertical i n the case of vertical writing (s
12、ee Annex Fig. i). Side t o be reference at machine It shall be lateral i n the case of lateral writing and entry frame Inside of rectangle indicating the place t o be written. with one character form enclosed by lines parallel and perpendicular to form process chart reference side (see Annex Fig. 1
13、) . width of entry frame constructing one entry frame (see Annex Fig. i ) . Distance between vertical lines (in inside) height of entry frame constructing one entry frame (see Annex Fig. i ) . Distance between lateral lines (in inside) entry range Minimum rectangular range containing all entry frame
14、s of continuous set i n one line with sides parallel and perpendicular t o form process chart reference side. taken i n lateral direction i n the case of lateral writing and i n vertical direction i n the case of vertical writing (see Annex Fig. 2). However, one line shall be line interval adjacent
15、i n direction perpendicular to line direction. However, the central line shall be a perpendicular bisection of vertical side of entry frame i n the case of lateral writing and perpendicular bisection of lateral side of entry frame i n the case of vertical writing (see Annex Fig. 1 ) . Distance betwe
16、en central lines of two entry frames margin between entry frames entry range. line i n l e f t end of next entry frame i n the case of lateral writing. Distance from lateral line i n lower end t o lateral line i n upper end. of next entry frame i n the case of vertical writing (see Annex Fig. 1 ) .
17、Distance between entry frames i n one Distance from vertical line i n right end to vertical character boundary perpendicular t o form process chart reference side containing i n i t a inside all line elements of one character form (see Annex Fig. 1 ) . Minimum rectangle with sides parallel o r clear
18、 area parallel or perpendicular t o form process chart reference side and margin part around it (see Annex Fig. 2). Rectangular range containing entry range with sides drop-out colour of surrounding margin part by human eye but with hue, chromaticness and lightness almost unable t o be perceived by
19、OCR device. Colour which can be discriminated clearly from that e e e e Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:40:27 MDTNo reproduction or networking permitted without license f
20、rom IHS -,-,- 3 x 9009-1991 3. Classification and Designation of Character Styles The character s t y l e s shall be classified in one sort and shall be designated as OCR-HH. 4. Character Forms The character forms shall be as follows. F- EI .t 1% I El n /3/ i(i lnl 111 U U L - I si I N Copyright Jap
21、anese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:40:27 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S X*9009 9 1 4933608 0505181 20T D Classification of character form
22、 4 x 9009-1991 Other upper- case character 9 9 7 t , 9 L, 3, - 5. Summary of Entry 5.1 Summary of General Entry One HIRAGANA character shall be written by the character form shown i n 4 . within oneentry frame. 5.2 Clearance The clearance shown i n character forms of 4. shall be 0.5 mm or over. Furt
23、her, the character shall not be written so that the clearance may be generated at a position other than those shown i n 4 . 5.3 Projection HANE (sweep) and KAZARI (serif) The excessive projec- tions, HANE (sweep) and other decorative additional parts shall not be made i n position other than those s
24、hown i n 4. 5 . 4 Short Line Elements The short line elements shall be 1.0 um or over i n length. 5.5 Microloops The microloop shall be 0.5 mm or over in internal diameter. 5.6 Size of Character Form The tolerances of width and height of character boundary shall be as shown i n Table 1 . Table 1 . T
25、olerance of Size of Character Form Width 2 7WtoW 2 Length THtoH Remarks: H is the height of entry frame and W i s its width. Further, the lowercase characters ( & L i ? LA-X+kb ) shall be written i n size of 1/2 to 2/3 of size of uppercase characters t o be written i n the same entry range. 5.7 Line
26、 Width The tolerance range of line width shall be 0.25 to 0.65 mm. 6 . Entry Frames 6.1 Minimum Entry Frame In order t o ensure the separation between line elements of character, the minimum width of entry frame shall be 7 mm and the height of entry frame shall be 1.0 to 1.4 t i m e s of width (see
27、Annex Fig. 1 ) . 6.2 Arrangement of Entry Frames The minimum margin between entry frames shall be 1.5 mm. The l i n e interval shall be taken so that the clear area may not enter i n entry range of an other line (see Annex Fig. 1). 6.3 Spectral Characteristics The entry frames shall be printed i n d
28、rop out colour. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:40:27 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S X * O O 9 91 = 4933b08 0505382 34b 5
29、 x 9009-1991 7. Entry Ranges e The entry range must be determined i n every line by collecting entry frames. objects t o take as a separate entry range i n each. However, one line may be divided i n sets of HIRAGANA as recognition 8. Clear Areas The clear areas shall be as follows. (1) In the case o
30、f lateral writing, the vertical distances of upper and lower boundaries of clear area and upper and lower boundaries of entry frame shall be 4 mm or over and the lateral distances of left and right boundaries and l e f t and right boundaries of entry range shall be 6 mm or over. (2) In the case of v
31、ertical writing, the horizontal distance of l e f t and right boundaries of clear area and left and right boundaries of entry range shall be 4 mm or over and the vertical distance of upper and lower boundaries of clear area and upper and lower boundaries of entry range shall be 6 mm or over. e (3) T
32、here must be only entry frames and HIRAGANA as recognition objects i n the clear area. area of entry range adjacent i n upper and under and l e f t and right but must not overlap each other with other entry range (see Annex Fig. 2). The clear area may overlap each other with clear Remarks: The chara
33、cters printed i n drop-out colours are allowed t o be i n the clear area. Reference Standards: JIS X 0208-Code of the Japanese Graphic Character Set for Information JIS X 9004-Printing Specifications for Optical Character Recognition JIS X 9005-Handprinted KATAKANA Characters for Optical Character J
34、IS X 9006-Handprinted Numerals for Optical Character Recognition JIS X 9007-Handprinted Alphabets for Optical Character Recognition JIS X 9008-Handprinted Symbols for Optical Character Recognition Interchange Recognition Copyright Japanese Standards Association Provided by IHS under license with JSA
35、Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:40:27 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S X * O U 93 I 4933608 0505383 082 6 x 9009-1991 Annex Fig. 1 . Form process chart reference side, entry frames and character boundar
36、ies (1) In the case of lateral writing Form-process chart reference side c w - U AA U w u x w frame ( H ) $ 1 (2) In the case of vertical writing Line interval i / Entry frame Character boundary m Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1
37、111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:40:27 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S X*JU 9% H 4933608 0505384 TL9 7 x 9009-1991 Annex Fig. 2. Entry range and clear area (1) In the case of lateral writing Entry range (oblique l i n e part)
38、,- - - . . .-. Clear area (oblique line part) / (2) In the case of vertical writing h u U a a l C 4 4 m 0 . d ri LI u 0) o“ ! - I x U d w Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:
39、40:27 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S XU7007 7l = 4933b08 0505185 955 8 x 9009-1991 Informative reference Hand Printed KANJI Characters for Optical Character Recognition This informative reference supplements the matters relating to the specifications
40、of the body and is not a part of the specifications. 1 . Scope This informative reference shows writing styles of hand printed KANJI characters to be used for optical character recognition and the summary of general entry. 2. Definitions For the purpose of this informative reference, the following d
41、eflnitions of terms apply. Other terms are defined in 2. of body. character classification Set of characters with same origin. For example, it designates the numeric characters, alphabetical characters, hiragana, katakana, kanji, etc. kanji sustaining words of the Japanese language. Characters to be
42、 used mainly for description of self- writing style for set of characters (character classification). Style of character form generation with quality same strokes individual character form. Basic graphic elements represented as lines to construct point strokes These are abridged at times as points.
43、Extremely short strokes standing alone on graphic. square writing style character form generation of abridgement or continuation of points and strokes. strokes and points clear in beginning and end of every character. Writing style accompanied with no flowing for Writing style to generate character
44、form by piling up sweep Part of slowly elongated terminal portion of some strokes. KAZARI (Serif) Additive part supplemented at end of some strokes. running hand character strokes. Character written continuously plural 3. Writinn stvle As for writing style, the square writing style shall be used. 4
45、. Summary of entry 4 . 1 Summary of general entry One kanji shall be inscribed in one entry frame in square writing style by taking into consideration the following items. a a a a Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=W
46、ing, Bernie Not for Resale, 03/14/2007 08:40:27 MDTNo reproduction or networking permitted without license from IHS -,-,- l e l e 9 x 9009-1991 (1) Do not inscribe character protruding from the entry frame or make the character small extremely. (2) Do not inscribe character losing the balance of lin
47、e elements and left-hand and right-hand radicals, etc. El- m la I 1- I (3) Inscribe horizontal, vertical or oblique strokes i n the correct direction for each. Further, do not inscribe by inclining extremely the total of character or by rounding the corner. I ( 4 ) Inscribe strokes by paying attenti
48、on to their mutual relation, - u- (5) Do not append unnecessary “E (sweep)“ or “KAzIIlcI: (serif)“. Further, even i n the case requiring “E“ or “HAAI (sweep) , do not inscribe too large. (6) The point strokes shall not be too s m a l l or too large. the lines shall not become blurred or shall not be extremely thick. Further, . 7 E 3 f Copyright Japanese Standards Association Provided by IHS