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 Information150DRAFT 2Figure 28 Feature point codes defined in ISO/IEC 14496-214.27.1.2 Eye and nostril center Feature PointsThe eye center feature points 12.1 (left) and 12.2 (right) are defined to be thehorizontal and vertical midpoints of the eye corners (3.7, 3.11) and (3.8, 3.12)respectively. The left nostril center feature point 12.3 is defined to be themidpoint of the nose feature points (9.1, 9.15) in the horizontal direction and (9.3,9.15) in the vertical direction. Similarly, the right nostril center feature point 12.4is defined to be the midpoint of the nose feature points (9.2, 9.15) in the
ANSI/NIST-ITL 1-2011Data Format for the Interchange of Biometric and Forensic Informationhorizontal direction and (9.3, 9.15) in the vertical direction. Both the eye centerand nostril center Feature points are shown in Figure 29 and values given inTable 54.Figure 29 Eye and nostril center feature pointsCenter Feature PointTable 54 Eye and nostril center feature point codesMidpoint of FeaturePointsFeaturecodePointLeft Eye 3.7, 3.11 12.1Right Eye 3.8, 3.12 12.2Left NostrilHorizontalVertical12.39.1, 9.15 9.3,9.15Right NostrilHorizontalVertical12.49.2, 9.15 9.3,9.1514.27.1.3 Anthropometric landmarks with and without MPEG4 counterpartsThis section uses the definitions specified by ISO 55 . Tables and contents in thissection are from the standard referenced in footnote 55.•55 See ISO/IEC 19794-5 Information technology – Biometric data interchange formats – Part 5: Face imagedata, Clause 5.5.6 Anthropometric Landmarks.151DRAFT 2
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