ANSI/NIST-ITL 1-2011 Data Format for the Interchange of Biometric and Forensic Information Foreword ...……………………………………………………………………………..vii 1 Introduction...................................................................................................... 1 1.1 Previous versions of the Standard ............................................................ 1 1.2 Summary of Changes for this Version of the Standard ............................. 1 2 Scope, purpose, and conformance ................................................................. 2 2.1 Scope ........................................................................................................ 2 2.2 Purpose..................................................................................................... 3 2.3 Conformance............................................................................................. 3 3 Encodings of the Standard.............................................................................. 3 4 Transmitted data conventions ......................................................................... 4 4.1 Friction Ridge Representation................................................................... 4 4.2 Byte and bit ordering ................................................................................. 4 4.3 Grayscale data .......................................................................................... 4 4.4 Binary data ................................................................................................ 5 4.5 Color data.................................................................................................. 5 4.6 Compression algorithms............................................................................ 7 4.7 Scan sequence.......................................................................................... 9 5 Image resolution requirements...................................................................... 10 5.1 Resolution accuracy requirement............................................................ 10 5.2 Scanner resolution requirement .............................................................. 11 5.3 Transmitting resolution requirement........................................................ 11 6 Transaction description ................................................................................. 12 7 Record type descriptions............................................................................... 14 7.1 Type-1 Transaction information record ................................................... 14 7.2 Type -2 User- defined descriptive text record ........................................... 15 7.3 Type-4 fingerprint image records (Users are encouraged not to utilize) 16 7.4 Type-7 User-defined image record (Users are encouraged not to utilize) 16 7.5 Type-8 Signature image record............................................................... 17 7.6 Type-9 Minutiae data record ................................................................... 17 i ANSI/NIST-ITL 1-2011 Data Format for the Interchange of Biometric and Forensic Information 7.7 Type-10 Facial or SMT;Type-11 Facial;and Type-12 SMT image records 18 7.8 Type-13 Variable-resolution latent image record .................................... 18 7.9 Type-14 Variable-resolution fingerprint image record ............................. 18 7.10 Type-15 Variable-resolution palmprint image record ............................ 19 7.11 Type-16 User-defined variable-resolution testing image record............ 19 7.12 Type-17 Iris image record ..................................................................... 19 7.13 Type -18 DNA data record ..................................................................... 20 7.14 Type -19 Plantar image record............................................................... 20 7.15 Type-20 Original image record.............................................................. 20 7.16 Type- 98 Information assurance record ................................................ 21 7.17 Type-99 CBEFF biometric data record.................................................. 21 8 Type-1 transaction information record........................................................... 22 8.1 Field 1.001 Record Header ..................................................................... 23 8.2 Field 1.002: Version number / VER......................................................... 23 8.3 Field 1.003: File content / CNT.............................................................. 23 8.4 Field 1.004: Type of transaction / TOT.................................................... 24 8.5 Field 1.005: Date / DAT........................................................................... 24 8.6 Field 1.006: Priority / PRY....................................................................... 24 8.7 Field 1.007: Destination agency identifier / DAI .................................... 24 8.8 Field 1.008: Originating agency identifier / ORI....................................... 24 8.9 Field 1.009: Transaction control number / TCN ...................................... 25 8.10 Field 1.010: Transaction control reference / TCR ................................. 25 8.11 Field 1.011: Native scanning resolution / NSR...................................... 25 8.12 Field 1.012: Nominal transmitting resolution / NTR............................... 25 8.13 Field 1.013: Domain name / DOM......................................................... 25 8.14 Field 1.014: Greenwich Mean Time / GMT ........................................... 26 8.15 Field 1.015: Directory of character sets / DCS...................................... 26 9 Type-2 user-defined descriptive text record.................................................. 27 9.1 Fields for Type-2 records ........................................................................ 28 10 Type-4 fingerprint image records.................................................................. 28 ii ANSI/NIST-ITL 1-2011 Data Format for the Interchange of Biometric and Forensic Information 10.1 Field 4.001: Record Header .................................................................. 29 10.2 Field 4.002: Image designation character / IDC.................................... 29 10.3 Field 4.003: Impression type / IMP........................................................ 29 10.4 Field 4.004: Fingerprint generalized position / FGP .............................. 30 10.5 Field 4.005: Image scanning resolution / ISR........................................ 34 10.6 Field 4.006: Horizontal line length / HLL ............................................... 34 10.7 Field 4.007: Vertical line length / VLL.................................................... 35 10.8 Field 4.008: Compression algorithm / CGA / BCA ................................ 35 10.9 Field 4.009: Image data / DATA ............................................................ 35 11 Type-7 user-defined image record................................................................ 35 11.1 Field 7.001: Record header................................................................... 36 11.2 Field 7.002: Image designation character / IDC.................................... 36 11.3 User-defined fields for Type-7 logical record......................................... 36 12 Type-8 signature image record..................................................................... 36 12.1 Field 8.001: Record header................................................................... 37 12.2 Field 8.002: Image designation character / IDC.................................... 37 12.3 Field 8.003: Signature type / SIG .......................................................... 38 12.4 Field 8.004: Signature representation type / SRT ................................. 38 12.5 Field 8.005: Image scanning resolution / ISR........................................ 38 12.6 Field 8.006: Horizontal line length / HLL ............................................... 38 12.7 Field 8.007: Vertical line length / VLL.................................................... 38 12.8 Field 8.008: Signature image data / DATA............................................ 38 13 Type-9 minutiae data record......................................................................... 39 13.1 Field 9.001: Record header................................................................... 41 13.2 Field 9.002: Image designation character / IDC.................................... 41 13.3 Field 9.003: Impression type / IMP........................................................ 41 13.4 Fields 9.013 – 9.030: IAFIS Features.................................................... 41 13.5 Fields 9.031 – 9.125: Registered vendor minutiae fields ...................... 42 13.6 Fields 9.126 – 9.150: M1-378 / ISO 19794-2 Minutia data.................... 42 13.7 Fields 9.300 – 9.398 Extended feature set fields .................................. 49 14 Type-10 facial or SMT image record........................................................... 129 iii ANSI/NIST-ITL 1-2011 Data Format for the Interchange of Biometric and Forensic Information 14.1 Field 10.001 Record Header ............................................................... 132 14.2 Field 10.002 Image designation character / IDC................................. 132 14.3 Field 10.003: Image type / IMT............................................................ 132 14.4 Field 10.004: Source agency / ORI / SRC........................................... 132 14.5 Field 10.005: