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

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ANSI/NIST-ITL 1-2011 - UPDATE 2013 DRAFT VERSIONPattern Classification General Class SubclassWhorl – DeltaRelationshipArch, type not designatedArchesAU- Plain Arch PA- Tented Arch TAWhorl, type not designated- Plain Whorl PW I, O, or MWhorls- Central Pocket Loop WUCP I, O, or M- Double Loop DL I, O, or M- Accidental Whorl AW I, O, or MLoopsUnable to printRight Slant LoopLeft Slant LoopAmputationTemporarily unable to print (e.g., bandaged)Unable to ClassifyRSLSXXUPUCUnable to classify- Complete Scar SR-Dissociated Ridges/DysplasiaDR8.9.7.6 Field 9.308: EFS ridge quality/confidence map / RQMLocal friction ridge quality (as defined in the Ridge Quality Map) is an assessment ofconfidence in small local areas within an image. The local quality map is used to definethe confidence in all other features, and therefore is key information. In addition, whenthe quality map indicates a high-quality region in which features are not marked, thatinformation can be used as “negative features” or definitive absence of features, whichcan be used for exclusion.For every cell in a grid superimposed on the Region of Interest, this optional field notesthe local ridge quality of the friction ridge detail within that cell. Local ridge qualitydefines clarity in terms of the ability to discern detail in a given location. The quality ofeach cell will be represented with a local quality value 0 through 5 representing thequality of ridge detail in that cell, as specified in Table 33. If a region of interest isdefined, cells outside of the ROI polygon shall be set to a local quality value of 0 (black).This optional field is comprised of a repeating set of values. The number of subfieldscorresponds to the number of cells in a column of the image. Each row value is encodedas shown in Table 34. See Field 9.309: EFS ridge quality map format / RQF for thedefinition of the grid size and data representation.Table 33 Local ridge quality codesMay, 2013 DRAFT VERSION UPDATE 2013 Page 149
ANSI/NIST-ITL 1-2011 - UPDATE 2013 DRAFT VERSIONNameLocalQualityCode Shorthand description Display colorDefinitive pores 5 Pores and ridge edges areobvious and unambiguousDefinitive ridge edges,debatable poresDefinitive minutiae,debatable ridge edgesDefinitive ridge flow,debatable minutiae4 Ridge edges, minutiae, andridge flow are obvious andunambiguous; pores areeither debatable or notpresent3 Minutiae, and ridge floware obvious andunambiguous; ridge edgesare debatable2 Continuity of ridge flow iscertain; minutiae aredebatableDebatable ridge flow 1 Continuity of ridge flow isuncertainAqua[RGB=(0,240,240)]Blue[RGB=(0,0,255)]Green[RGB=(0,255,0)]Yellow[RGB=(255,255,0)]Red[RGB=(255,0,0)]Background 0 No ridge information Black or no color[RGB=(0,0,0)]8.9.7.7 Field 9.309: EFS ridge quality map format / RQFThis optional field defines the grid size or data representation format used in Field 9.308:EFS ridge quality/confidence map / RQM. Its use is mandatory if that field is present.This field consists of two information items:• The first information item (grid size / GSZ) shall be used to define gridsizes (both the horizontal and vertical dimensions of a single cell in the grid):valid settings range from “1” (0.01mm) through “41” (0.41mm). Therecommended grid size is 0.20mm (0.008”) – note this is 4 pixels at 500ppi,or 8 pixels at 1000ppi.• The second information item (data format / RDF) defines the format usedin Field 9.308, using the codes defined in Table 34. For all formats:o The first cell starts at the top left corner of the Region of Interest, withcells in order left to right.o All of the quality values for each row are stored in one repeatingsubfield.o The subfields are ordered from top to bottom.o If the width and/or height of the Region of Interest are not evenlydivisible by the Grid Size, partial cells shall be included at the rightand/or bottom of the ridge flow map.150
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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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