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

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 VERSION8.10.9 Field 10.009: Transmitted horizontal pixel scale / THPSThis field is mandatory. See Section 7.7.8.4 <strong>for</strong> details.8.10.10 Field 10.010 Transmitted vertical pixel scale / TVPSThis field is mandatory. See Section 7.7.8.5 <strong>for</strong> details.8.10.11 Field 10.011: Compression algorithm / CGAThis is a mandatory field. It shall specify the algorithm used to compress the transmittedcolor or grayscale images. See Table 15 <strong>for</strong> a list of the codes, and Sections 7.7.9.3 and7.7.9.4 <strong>for</strong> a detailed description of this field. Annex E: E.6.1 Compression algorithmlists conditions <strong>for</strong> facial images by SAP level.8.10.12 Field 10.012: Color space / CSPThis is a mandatory field. See Section 7.7.10 <strong>for</strong> details.8.10.13 Field 10.013: Subject acquisition profile / SAPThe Subject Acquisition Profile (SAP) is a mandatory field when Field 10.003: <strong>Image</strong>type / IMT contains “FACE”. Otherwise, it shall not be entered. See Section 7.7.5.1.8.10.14 Field 10.014: Face image bounding box coordinates in fullimage / FIPThis field 117 is only appropriate <strong>for</strong> face images (IMT = 'FACE') that do not comply withSAP Levels 30, 32, 40, 42, 50, 51 or 52, because those images shall be cropped to a“head only” or “head and shoulders” composition. This field is an alternative approach tothe bounding box described in Field 10.015: Face image path coordinates in full image /FPFI.If the image contains more than one face, the bounding box indicates the face of interest;otherwise, this box can be used <strong>for</strong> cropping the single facial image. All associated Type-10 fields are limited to the face defined by the bounding box in the larger image. Thisfield has four (4) mandatory and one (1) optional in<strong>for</strong>mation item.• The first in<strong>for</strong>mation item (left horizontal coordinate value / LHC) is theleft horizontal offset of the bounding box relative to the origin positioned inthe upper left corner of the image. It is expressed in pixel counts across.• The second in<strong>for</strong>mation item (right horizontal coordinate value / RHC) isthe right horizontal offset of the bounding box is relative to the originpositioned in the upper left corner of the image. It is expressed in pixelcounts across.117New <strong>for</strong> the <strong>2011</strong> version of the standard.May, 2013 DRAFT VERSION UPDATE 2013 Page 203

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