ANSI/NIST-ITL 1-2011 - NIST Visual Image Processing Group ...

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ANSI/NIST-ITL 1-2011Data Format for the Interchange of Biometric and Forensic Informationmajor case printsA set of exemplar images of all finger and palm friction skin for an individual.Major case prints include full palmprint images, as well as rolled fingerprints,plain fingerprints, entire joint images, and rolled tips for all fingers. A set of majorcase prints may optionally include plantar images. They are also known ascomplete friction ridge exemplars. (Note that the term Major Case Prints may bedeprecated for some uses because in legal contexts it can be incorrectly read asmaking an implication regarding the severity of the case.)In order to ensure that segmentation of a multi-finger plain image has beenperformed correctly (if single finger flat images are transmitted), the original multifingerplain images shall accompany the segmented single-finger images.Also, 2 plain impressions of the thumbs are specifically required in major caseprints.Major case prints may be transmitted using either Type-4 or Type-14 records,with Type-14 preferred.matrixThe substance deposited by the finger that forms the impression.medial segmentThe middle segment of the finger. The thumb does not have a medial segment.minutiaThe point where a friction ridge begins, terminates, or splits into two or moreridges. Minutiae are friction ridge characteristics that are used to individualize afriction ridge image (fingerprint, palmprint, plantar).mugshotTerm used interchangeably with facial image.native scanning resolutionThe scanning resolution used by a specific AFIS, live-scan reader, or otherimage capture device and supported by the originator of the transmission.NIEMAbbreviation for the National Information Exchange Model. It is a partnership ofUS Government agencies designed to develop and support informationexchange standards using XML.NISTAcronym for the National Institute of Standards and Technology.Brad Wing 7/7/10 9:41 AMComment: Note the inclusion of a requirementto forward the original multi-finger plain imagealong with the segmented images. (NEW)264DRAFT 2
ANSI/NIST-ITL 1-2011Data Format for the Interchange of Biometric and Forensic Informationnominal transmitting resolutionThe number of pixels per unit distance (ppmm or ppi) of the transmitted image.The transmitting resolution may be the same as the scanning resolution for aparticular image. On the other hand, the transmitting resolution may be less thanthe scanning resolution if the scanned image was subsampled, scaled, orinterpolated down before transmission.NFIQAbbreviation for NIST Fingerprint Image Quality.palmprintAn exemplar or latent friction ridge image from the palm (side and underside) ofthe hand. A full palmprint includes the area from the wrist to the tips of thefingers. A lower palmprint includes the area from the wrist to the base of thefingers, including the entire interdigital area. An upper palmprint includes the areafrom the tips of the fingers to the interdigital area, and must include enough of theinterdigital area to be able to determine that upper and lower palm images arefrom the same hand.palmarHaving to do with the friction ridge skin on the hands (fingers).plain fingerprintA fingerprint image resulting from the touching of one or more fingers to alivescan platen or paper fingerprint card without any rolling motion.plantarHaving to do with the friction ridge skin on the feet (soles and toes).ppiAbbreviation for pixels per inch.ppmmAbbreviation for pixels per millimeter.proximal segmentThe segment of the finger or thumb closest to the palm.recurving ridgeA ridge whose path begins in one direction, curves and continues in a pathparallel or nearly parallel to its start.An innermost recurving ridge is a recurving ridge that encloses no otherrecurving ridges.265DRAFT 2
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