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

ANSI/NIST-ITL 1-2011 - UPDATE 2013 DRAFT VERSIONTable 53 EFS codes of quality issue typesCodeARTIFACTBACKGROUNDCOMPRESSEDDISTORTNEGATIVEOVERDEVOVERLAPSMEARSTRETCHEDTAPEOTHERDescriptionDigital artifacts, such as occasionally caused by compression orlivescan devices.Interference with background makes following ridges difficult(e.g. check patterns)Distorted area in which ridges are compressed togetherMiscellaneous distortion (See also Compressed and Stretched)Used if only a portion of the friction ridge image is tonallyreversed (has ridges and valleys inverted so that ridges appearwhite and valleys appear black). Note that Field 9.314 TonalReversal (TRV) is used if the entire image is tonally reversed.Overdeveloped area: excessive processing medium such as ink,powder, etc.Area in which another friction ridge impression is superimposedover the impression of interestSmeared or smudged areaDistorted area in which ridges are stretched apart from each otherLifting tape artifacts (crease, bubble, etc.)Other quality issues not characterized elsewhere; details shouldbe noted in Comments8.9.7.47 Field 9.360: EFS area of correspondence / AOCThis field is to be used only when two or more images contained in a single ANSI/NIST-ITL transaction are compared as candidates for individualization (potential mates). Thearea of correspondence is a polygon enclosing the region of usable ridge detail present inboth images being compared. If the corresponding areas are discontinuous, more than onearea of correspondence may be defined for a pair of images, each in a separate subfield.One Type-9 record may have multiple AOCs defined that correspond to different images,as shown in Figure 11, each in a separate repeating subfield. Figure 11 shows theinterrelationships of the IDCs and AOCs for three different Type-9 records in a singletransaction.Note that the AOC in a given Type-9 record contains an IDC reference for one or moreother Type-9 record in a transaction. For example, a latent could have areas ofcorrespondence with both the rolled and plain exemplars from one subject, or a latentcould have areas of correspondence with candidate exemplars from two differentsubjects. If two prints overlap but neither encloses the area of the other (such as shown inFigure 11, the AOC shall be marked for both prints. If the area of a small print iscompletely enclosed by the area of a larger print so that the AOC for the small print is180