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5.2 Acquisition and format

NIST PIV and digital identity SP 800-76-1
All changes in this version
first version loaded 5 Images shall either be uncompressed or compressed using an implementation of the Wavelet Scalar Quantization part of 5

Title

Acquisition and format

Control

This section provides specifications for the retention of facial images. Facial images collected during PIV Registration shall be formatted such that they conform to INCITS 385-2004 [FACESTD]. In addition to establishing a format, [FACESTD] specifies how a face image should be acquired. This is done to improve image quality and, ultimately, performance. The images shall be embedded within the CBEFF structure defined in Section 6. Because [FACESTD] is generic across applications it includes sections that have either-or requirements. Table 6 is an application profile of [FACESTD] tailored for PIV. It gives concrete specifications for much of the generic content. Column 3 references the sections of [FACESTD] and columns 4 and 5 give [FACESTD] requirements. For PIV, column 6 of Table 6 gives normative practice or value specifications. The table is not conformant with the Implementation Conformance Statement [ICS] standard. Particularly it extends the function of ICS but because it has the needed rows it may be useful in construction of a traditional ICS. Nevertheless the addition of a "values supported column" as specified in Section 9.1 of [ICS] should be used by implementers for checking conformance to the specifications. INCITS 385 is likely to be revised by the INCITS M1 committee. Such revisions are irrelevant to PIV; however implementations should respect the version number on Line 5 of Table 6.

Table 6: INCITS 385 profile for PIV facial images

INCITS 385-2004 Section title and/or field name (Numbers in parentheses are [FACESTD] clause numbers) Field or content Value Reqd Values Allowed Informative Remarks