Материал: part05

Page 136​ DICOM PS3.5 2020a - Data Structures and Encoding​

Table H.3-1. Character Sets and Escape Sequences Used in Example 1​

H.3.2 Value 1 of Attribute Specific Character Set (0008,0005) is ISO 2022 IR 13.​

Example H.3-2. Value 1 of Attribute Specific Character Set (0008,0005) is ISO 2022 IR 13​

Specific Character Set:​

(0008,0005) ISO 2022 IR 13\ISO 2022 IR 87​

Character String:​

^ = ^ = ^ ​

^ = ESC 02/04 04/02 ESC 02/08 04/10 ^ ESC 02/04 04/02 ESC 02/08 04/10 = ESC 02/04 04/02 ​ ESC 02/08 04/10 ^ ESC 02/04 04/02 ESC 02/08 04/10​

Encoded representation:​

13/04 12/15 12/00 13/14 05/14 12/00 13/11 11/03 03/13 01/11 02/04 04/02 03/11 03/03 04/05 04/04 01/11 02/08 04/10 05/14 01/11 02/04 04/02 04/02 04/00 04/15 03/10 01/11 02/08 04/10 03/13 01/11 02/04 04/02 02/04 06/04 02/04 05/14 02/04 04/00 01/11 02/08 04/10 05/14 01/11 02/04 04/02 02/04 03/15 02/04 06/13 02/04 02/06 01/11 02/08 04/10

An example of what might be displayed or printed by an ASCII based machine that displays or prints the Control Character ESC​ (01/11) using \033:​

\324\3l7\300\336^\300\333\263=\033$B;3ED\033(J^\033$BB@O:\033(J=\033$B$d$^$@\033(J^\033$B$?$m$&\033(J

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DICOM PS3.5 2020a - Data Structures and Encoding​ Page 137​

Table H.3-2. Character Sets and Escape Sequences Used in Example 2​

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I Character Sets and Person Name Value​ Representation in the Korean Language​ (Informative)​

I.1 Character Sets For The Korean Language in DICOM​

KS X 1001 (registered as ISO-IR 149) is used as a Korean character set in DICOM. This character set is the one most broadly used​ for the representation of Korean characters. It can be encoded by ISO 2022 code extension techniques, and is registered in ISO​ 2375.​

The Escape Sequence is shown for reference in Table I.1-1 (see PS3.3)​

Table I.1-1. ISO/IEC 2022 Escape Sequence for ISO-IR 149​

ISO-IR 149​

1.​ISO-IR 149 is only used as a G1 set in DICOM.​

2.​TheKoreancharacterset(ISOIR149)isinvokedtotheG1area.ThisisdifferentfromtheJapanesemulti-bytecharacter​ sets (ISO 2022 IR 87 and ISO 2022 IR 159), which use the G0 code area. Japan's choice of G0 is due to the adoption​ of an encoding method based on "ISO-2022-JP". ISO-2022-JP, the most familiar encoding method in Japan, and uses​ only the G0 code area. In Korea, most operating systems adopt an encoding method that invokes the Hangul character​ set(KSX1001)intheG1codearea.So,thedifferencebetweencodeareasofKoreanandJapanesecharacteroriginates​ inconvention,notatechnicalproblem.Invocationofmulti-bytecharactersetstotheG1areadoesnotchangethecurrent​ DICOM normative requirements.​

I.2 Example of Person Name Value Representation in the Korean Language​

Example I.2-1. Example of Person Name Value Representation in the Korean Language​

Person names in the Korean language may be written in Hangul (phonetic characters), Hanja (ideographic characters), or Latin (al-​ phabetic characters). The three component groups should be written in the order of alphabetic, ideographic, and phonetic (see​ Table 6.2-1).​

Specific Character Set:​

(0008,0005) \ISO 2022 IR 149​

Character String:​

Hong^Gildong= ^ = ^ ​

Hong^Gildong= ESC 02/04 02/09 04/03 ^ ESC 02/04 02/09 04/03 = ESC 02/04 02/09 04/03 ^ ESC 02/04 02/09 04/03​

​

Encoded representation:​

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04/08 06/15 06/14 06/07 05/14 04/07 06/09 06/12 06/04 06/15 06/14 06/07 03/13 01/11 02/04 02/09 04/03 15/11 15/03 05/14 01/11 02/04 02/09 04/03 13/01 12/14 13/04 13/07 03/13 01/11 02/04 02/09 04/03 12/08 10/11 05/14 01/11 02/04 02/09 04/03 11/01 14/06 11/05 11/15

An example of what might be displayed or printed by an ASCII based machine that displays or prints the Control Character ESC​ (01/11) using \033:​

Hong^Gildong=\033$) C\373\363^\033$)C\321\316\324\327=\033$)C\310\253^\033$)C\261\346\265\277

Note​

1.​The multi-byte character set (ISO-IR 149) and single-byte character set (ISO 646) can be used intermixed without any​ explicit escape sequence after the initial escape sequence. Once ISO 646 has been designated to the GL area and​ ISO-IR 149 to the GR area, each character set has different code area, thus can be used intermixed. The decoder will​ check the most significant bit of a character to know whether it is a two byte character in the GR area (high bit one) or​ a one byte character in the GL area (high bit zero).​

2.​Intheaboveexampleofpersonnamerepresentation,explicitescapesequencesprecedeeachHangulandHanjastring.​ These escape sequences are to meet the requirements of the code extension technique that specifies a switch to the​ Default Character Repertoire before delimiters. In the previous example, it is assumed that the Default Character Rep-​ ertoire (ISO-646) is invoked to G0 code area and no character set to G1 area after delimiters ("^" and "=" signs). See​ Section 6.1.2.5.3.​

I.3 Example of Long Text Value Representation in the Korean Language Without​

Explicit Escape Sequences Between Character Sets​

Example I.3-1. Example of Long Text Value Representation in the Korean Language Without Explicit​ Escape Sequences Between Character Sets​

Hangul (ISO IR 149) and ASCII (ISO 646) character sets can be used intermingled without explicit escape sequences between them.​ The Hangul character set ISO IR 149 is invoked to the G1 area, so this invocation doesn't affect the G0 area to which the ASCII​ character set has been invoked. The following is an example of a Long Text value representation that includes ASCII and Hangul​ character set.​

Specific Character Set:​

(0008,0005) \ISO 2022 IR 149​

Character String:​

The first line includes .​

The second line includes , too.​

The third line​

Encoded String:​

ESC 02/04 02/09 04/03 The first line includes .​

ESC 02/04 02/09 04/03 The second line includes , too.​

The third line​

Once having invoked the ISO IR 149 character set to G1 area by the escape sequence in the head of line, one can use Hangul and​ ASCII intermixed in that line.​

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