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

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ANSI/<strong>NIST</strong>-ITL 1-<strong>2011</strong> - UPDATE 2013 DRAFT VERSION8.10.18 Field 10.018: Distortion / DISTThis optional field (which can be used only if IMT is 'FACE') contains the type ofdistortion, whether it is estimated or calculated, and its relative severity. This fieldconsists of three in<strong>for</strong>mation items, all of which are subjective in nature:• The first in<strong>for</strong>mation item is the distortion code / IDK. Allowed values are:“Barrel” (<strong>Image</strong> appears to be spherized), or“Inflated” (also known as wide angle or fisheye distortion) or“Pincushion” (image 'pinched' at the center or 'bowed inwards').• The second in<strong>for</strong>mation item is an alphabetic code, which is a distortionmeasurement code / IDM, that indicates if the distortion is estimated “E” orcalculated “C”.• The third in<strong>for</strong>mation item is the distortion severity code / DSC. Theallowed values are: “Mild”, “Moderate” or “Severe”.8.10.19 Field 10.019: Lighting artifacts / LAFThis optional field (contains the type of lighting artifacts found in the Type-10 imagerecord. It is only applicable to face images (IMT = 'FACE'). Multiple lighting artifactsmay be repeated as separate subfields. The codes are:F: Face shadowsH: Hot spotsR: Reflections from eye glasses8.10.20 Field 10.020: Subject pose / POSThis optional field is to be used <strong>for</strong> the exchange of facial image data (IMT = 'FACE').When included, this field shall contain one character code selected from Table 61 todescribe the pose of the subject. For the determined 3D pose entry “D”, Field 10.025:Subject pose angles / SPA shall contain a set of determined 3D pose angles (i.e., Yaw,Pitch, and Roll angles) away from the full frontal face orientation.[2013n>] A value of POS = D does not imply that the image itself is a 3D image, suchas a point cloud. 3D imagery can be transmitted in a Type-22 record. [2013n]Note that the offset angle in Field 10.021: Pose offset angle / POA is opposite from theyaw angle in Field 10.025 as indicated by a minus sign. See E.7.2 Subject Pose (POS)and subject pose angles (SPA) <strong>for</strong> more in<strong>for</strong>mation about pose angles.Pose descriptionTable 61 Subject posePosecodePose descriptionPosecodeFull Face Frontal F Angled Pose AMay, 2013 DRAFT VERSION UPDATE 2013 Page 205

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