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

ANSI/NIST-ITL 1-2011 - UPDATE 2013 DRAFT VERSIONCategory Type Code DescriptionOut ofregionRThe labeled feature is not visible in the impression because it liesoutside of the area of correspondence for this image: the featuremay or may not be present, but the impression does not include therelevant area (corresponding x coordinate / CXC, correspondingY coordinate / CYC, corresponding field number / CFN andcorresponding field occurrence / FOC information items areunused)Informally: It isn’t in the area of overlap, so I can’t say anything.InconclusiveUnclearareaUThe labeled feature is not visible in the impression because thepotentially corresponding region is not sufficiently clear: thefeature may or may not be present, but local quality issues preventa definite determination. (corresponding x coordinate / CXC,corresponding Y coordinate / CYC, corresponding fieldnumber / CFN and corresponding field occurrence / FOCinformation items are unused)Informally: I can’t tell if the feature is there because the areawhere it would be is smudged or otherwise unclear.Corresponding Points or Features may refer to arbitrary points, or may refer to predefinedfeatures (as noted in Table 120 and Table 54 EFS codes for field numbers used forcorresponding features). Note that the features include point features (such as minutiae, dots,or pores), but also may refer to areas (such as distinctive characteristics), lines (incipients orcreases), or paths (ridge path segments).Arbitrary points may be used to indicate characteristics that were not noted during analysis, orto indicate points in an exemplar that was not previously marked up. For example, see Table121. Assume that a latent and exemplar are both present in a transaction, and that the latent andexemplar columns in these tables are examples from Field 9.361: EFS corresponding pointsor features / CPF from different type-9 records in a single transaction. The label “M1”indicates that the latent minutia (stored in Field 9.331: EFS minutiae / MIN) #5 correspondsto corresponds to location (1024,765) within the exemplar’s 8.9.7.0.2 EFS region of interest.The label / COL “X1” indicates that the dot ( Field 9.340: EFS dots / DOT) #1 does not existwithin the exemplar image.Field 9.361 consists of the following information items:The first information item, label / COL, 1-3 character alphanumeric label used to indicatecorrespondence between feature points in different type-9 records within the same transaction.Labels within a single Type-9 record shall be unique. Note that the use of a given label in onetype-9 record means that that point or feature corresponds with any or all other features with thesame label in other type-9 records in the transaction.May, 2013 DRAFT VERSION UPDATE 2013 Page 501