acknowledgements for ansi/nist-itl 1-2011 - NIST Visual Image ...

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ANSI/NIST-ITL 1-2011 - UPDATE 2013 DRAFT VERSION8.4.1 Field 4.001: Record headerThe content of this mandatory field is dependent upon the encoding used. See therelevant annex of this standard for details. See Section 7.1.8.4.2 Field 4.002: Information designation character / IDCThis mandatory field shall contain the IDC assigned to this Type-4 record as listed in theinformation item IDC for this record in Field 1.003 Transaction content / CNT. SeeSection 7.3.1.8.4.3 Field 4.003: Impression type / IMPThis mandatory field shall indicate the manner by which the fingerprint was obtained.See Section 7.7.4.1 for details.8.4.4 Field 4.004: Friction ridge generalized position / FGPThis mandatory field shall contain the decimal code number corresponding to the fingerposition and shall be taken from Table 8. Only finger numbers 0-15 apply to Type-4 52 .Up to five additional finger positions shall be referenced by entering the alternate fingerpositions using the same format. If fewer than five finger position references are to beused, the unused position references shall be filled with 255 for Traditional format. Sixvalues shall be entered in each record for Traditional format. See Section 7.7.4.2 formore information.If Record Type-4 is used and images are scanned at a step in the migration path greaterthan the class of 500 ppi (effectively 510 ppi) , they shall be subsampled, scaled down, orinterpolated down to produce a class resolution of 500 ppi for transmission. RecordType-4 shall not be used to transmit a fingerprint image at greater than 20.08 ppmm (510ppi) 53 . See Section 7.7.6.2.8.4.5 Field 4.005: Image scanning resolution / ISRThe mandatory ISR field relates to the scanning resolution of this image. Previousversions of this standard stated that 0 in this field represents the 'minimum scanningresolution.' The minimum scanning resolution was defined in ANSI/NIST-ITL 1-2007 as“19.69 ppmm plus or minus 0.20 ppmm (500 ppi plus or minus 5 ppi).” Therefore, if theimage scanning resolution corresponds to the Appendix F certification level (See Table14 Class resolution with defined tolerance), a 0 shall be entered in this field.A value of 1 is entered if the actual scanning resolution (outside of the Appendix Fcertification range) is specified in Field 1.011 Native scanning resolution / NSR.52The 2007 and 2008 versions of this standard restricted the FGP to a range of 0 to 14. Code 15 is includedin this version.53[2013a>] Sentence reworded for clarity. [
ANSI/NIST-ITL 1-2011 - UPDATE 2013 DRAFT VERSION8.4.6 Field 4.006: Horizontal line length / HLLThis mandatory field shall contain the number of pixels on a single horizontal line of thetransmitted image. See Section 7.7.8.1.8.4.7 Field 4.007: Vertical line length / VLLThis mandatory field shall contain the number of pixels on a single horizontal line of thetransmitted image. See Section 7.7.8.2.8.4.8 Field 4.008: Compression algorithm / GCA 54This is a mandatory field, used to specify the type of compression algorithm used. A zerodenotes no compression. Otherwise, the WSQ algorithm should be used to compress thedata, and is indicated by a value of 1. Codes 2 and 3 are retained solely for backwardscompatibility with those legacy systems that use JPEG compression and should notnormally be used. See Section 7.7.9.1.8.4.9 Field 4.009: Image data / DATAThis is a mandatory field.8.5 Record Type-5: DeprecatedSee ANSI/NIST-ITL 1-2007 or ANSI/NIST-ITL 2-2008 for specifications. No instances ofRecord Type-5 shall be included in a transaction conformant with this version of thestandard.8.6 Record Type-6: DeprecatedSee ANSI/NIST-ITL 1-2007 or ANSI/NIST-ITL 2-2008 for specifications. No instances ofRecord Type-6 shall be included in a transaction conformant with this version of thestandard.8.7 Record Type-7: User-defined image recordType-7 records shall contain user-defined image information relating to the transactionsubmitted for processing. New implementations based on this standard are encouraged touse the Record Type-13: Friction-ridge latent image record for latent records, andother record types, as appropriate, for transmitting biometric and forensic images. Imagestransmitted using Record Type-7 shall consist of scanned pixels that may be either binaryor grayscale output. Each grayscale pixel value shall be expressed as an unsigned byte. Avalue of 0 shall be used to define a black pixel and an unsigned value of 255 shall be usedto define a white pixel. For binary pixels, a value of 0 shall represent a white pixel and avalue of 1 shall represent a black pixel. Resolution and compression is not specified forthis Record Type. See Section 7.7.6 for information about the difference in the handling54[2013e>] Mnemonic corrected to GCA [
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NIST Special Publication 500-xxxANS
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5.3.18 Type-18 records ............
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8.1.4 Field 1.004 Type of transacti
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8.9.7.18 Field 9.322: EFS core delt
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8.11 Record Type-11: Forensic and i
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8.14.2 Field 14.002: Information de
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8.17 Record Type-17: Iris image rec
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8.19.24 Field 19.902: Annotation in
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8.24.6 Field 99.101: Biometric type
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F.6.3 Reference points.............
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Figure 34: Palm with carpal delta a
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Table 31 Off-center fingerprint pos
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Table 95 DNA sample cellular types.
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Type-11:A new record type introduce
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ACKNOWLEDGEMENTS FOR ANSI/NIST-ITL
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Will Graves, Rob Mungovan, Catherin
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John ManzoFBI/BIOMETRICS Center ofE
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General Editor: Brad Wing[2013a>]AC
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CANVASSEES For the 2013 UpdateTO BE
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ANSI/NIST-ITL 1-2011 - UPDATE 2013
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