ANSI/NIST-ITL 1-2011 - NIST Visual Image Processing Group ...

ANSI/NIST-ITL 1-2011Data Format for the Interchange of Biometric and Forensic Information• The second information item in each subfield (character set name /CSN) shall be the common name for the character set associated withthat index number.• The optional third information item (character set version / CSV) isthe specific version of the character set used. In the case of the use ofUTF-8, the third optional information item can be used to hold thespecific version of the character set used with UTF-8, so that thedisplay terminal can be switched to the correct font family.Table 5 lists the reserved named character sets and their associated 3-characterindex numbers.Characterset indexTable 5 Directory of character setsCharacterset nameDescription000 ASCII 7-bit English (Default)001 ASCII 8-bit Latin002 UNICODE 16-bit003 UTF-8 8-bit004-127 ------------- Reserved for ANSI/NIST future use128-999 ------------- User-defined character sets9 Type-2 user-defined descriptive text recordType-2 records are optional, but when present, shall contain textual informationrelating to the subject of the transaction and shall be represented in an ASCIIformat. This record may include such information as the state or FBI numbers,physical characteristics, demographic data, and the subject’s criminal history.Every transaction usually contains one or more Type-2 records which isdependent upon the entry in the Type-of-Transaction Field 1.004 (TOT).Additional Type-2 records may be included in the file.Table 6 Type 2 record dataMnemonic Condcode*Field Characternumber TypeField nameOccur countMinMaxM 2.001 RECORD HEADER 1 1IDC M 2.002 N IMAGE DESIGNATION CHARACTER 1 1---- O 2.003 USER DEFINED FIELDS 0 UnlimitedCondition codes: M = Mandatory; O= Optional;C-field number = Conditional upon the value of the field referenced.27DRAFT 2