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

ANSI/NIST-ITL 1-2011 - UPDATE 2013 DRAFT VERSION7.7.5.1.5 Level 30 (Basic mugshot)These mugshots shall adhere to strict background, lighting, and resolution requirements.In particular, the background is 18% gray, the lighting is three-point, and the image size isat least 480 x 600 pixels with an aspect ratio of 1:1.25. Annex E: Facial Capture –SAPs 30 and above for more information about Level 30.7.7.5.1.6 Level 32 (Mobile device basic mugshot)The requirements for level 32 are based on those of level 30, but not fully inclusive of allof those requirements. For instance, relative centering error and 18% grayscale withappropriate lighting may not be realistic for a mobile application. Use of this SAPnumber indicates that the image was captured with a mobile device. See Table 11 for thecomplete requirements for SAP level 32.7.7.5.1.7 Level 40 (Higher resolution mugshot)A facial image conforming to the level-40 application profile can be captured with an offthe-shelf1-megapixel camera. Requirements for conformance with level-40 facial imagecapture include the following (See Annex E: Facial Capture – SAPs 30 and above):· The image shall conform to the minimum requirements for the capture of level-30facial images· At least one full frontal face image shall be captured.· The minimum number of pixels in the digital image shall be 768 x 1024 pixels, and· Facial images shall conform to the “head and shoulders” composition detailedrequirements shown in Annex E: Facial Capture – SAPs 30 and above.It should be noted that the resolution aspect of the captured facial images are improved asthe number of pixels in both directions are increased. As images are captured with anincreased number of pixels, the 3:4 (Width : Height) aspect ratio shall be maintained.7.7.5.1.8 Level 42 (Mobile device higher resolution mugshot)The requirements for level 42 are based on those of level 40, but not fully inclusive ofthose requirements. For instance, relative centering error and 18% grayscale withappropriate lighting may not be realistic for a mobile application. Use of this SAPnumber indicates that the image was captured with a mobile device. See Table 11 for thecomplete requirements for SAP level 42.7.7.5.1.9 Levels 50 and 51 (Best practice mugshots)A facial image conforming to the level 50 and level 51 application profiles shall include“face image capture requirements”. See Annex E: Facial Capture – SAPs 30 andabove. These profile levels are intended to allow for examination of up to forensic-level74