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

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ANSI/NIST-ITL 1-2011 - UPDATE 2013 DRAFT VERSIONIf the SRT field contains the binary equivalent of “2”, then DATA shall contain a list ofvectors describing the pen position and pen pressure of line segments within the signature.Each vector shall consist of five bytes.The first two bytes of each vector shall contain the unsigned binary X coordinate of the penposition with the high order byte containing the most significant bits. The next two bytesshall contain the unsigned Y coordinate using the same convention to denote the mostsignificant bits. Both the X and Y coordinates shall be expressed in units of .0254 mm (.001inches) referenced from the bottom leftmost corner of the signature. Positive values of Xshall increase from left-to-right and positive values of Y shall increase from bottom-to-top.An unsigned binary number between “0” and “255” contained in the fifth byte shall representthe pen pressure. This shall be a constant pressure until the next vector becomes active.Binary value of “1” shall represent the least recordable pressure for a particular device, whilethe binary equivalent of “254” shall represent the maximum recordable pressure for thatdevice. To denote the end of the vector list the binary equivalent of “255” shall be inserted inthis entry.B.2.5Type-9 recordFields 9.005 through 9.012 are to be used for legacy data only. See ANSI/NIST-ITL 1-2007for instructions on use of these fields.Paths in EFS require a special data construct for Traditional encoding. See Section 7.7.12.2Type-9 extended feature set (EFS) paths.Polygons are used in the following EFS fields:Field 9.302: EFS finger - palm - plantar position / FPPField 9.300: EFS region of interest / ROIField 9.324: EFS distinctive features / DISField 9.357: EFS local quality issues / LQIField 9.360: EFS area of correspondence / AOC.Open paths are used in the following EFS field:Field 9.373: EFS ridge path segments / RPS.A comma separates the X and Y coordinates for a given vertex, and a dash separatingconsecutive vertices. For example: X1,Y1-X2,Y2-X3,Y3If multiple paths are present in the same field, they are stored as separate data entries(occurrences), separated by the“ R S” character:X1,Y1-X2,Y2-X3,Y3 R S X4,Y4-X5,Y5-X6,Y6May, 2013 DRAFT VERSION UPDATE 2013 Page 453
ANSI/NIST-ITL 1-2011 - UPDATE 2013 DRAFT VERSIONB.2.6Type-10 recordThere are no special requirements for this record type.B.2.7Type-11 record[2013v>] The Type-11 record should not be encoded using the Traditional format.{] The Type-12 record ishould not be encoded using the Traditional format.[
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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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