Description:
This is an extension of the table, Finger Position Code & Maximum Image Dimensions in order to include additional finger combinations. The extension is to Table 12 in Part 1 and Table 212 in Part 2. This brings the ANSI/NIST standards into harmony with “Mobile ID Device Best Practice Recommendation Version 1.0” (NIST Special Publication 500-280). Only the table extension is subject to vote.
The “Mobile ID Device Best Practice Recommendation Version 1.0” (BPR) was developed by a working group established by the Advisory Policy Board (APB) to the Federal Bureau of Investigation (FBI). The Working Group was comprised of representatives from Government (US and international), academia, and industry. It met over thirteen months and produced several drafts before reaching a consensus on the final version that was then issued as a NIST Special Publication.
The document is intended to assist organizations that process and exchange biometric data captured and acquired from a Mobile ID device without regard to any peculiarities of that device. Information captured, compiled and formatted in accordance with the BPR and compliant with the target system’s implementation of the ANSI/NIST-ITL 1-2007 or ANSI/NIST 2-2008 standards can be transmitted and seamlessly exchanged.
The working group recognized the need to be able to transmit data captured from multiple fingers simultaneously. The ANSI/NIST finger position codes are extended to allow for this type of data. Note that Table 12(Part1) and Table 212 (Part 2) are identical. The codes start at 0 and go to 19. Palm codes utilize numbers 20 through 36 in Record Type 15. Thus, the additional finger codes (used for the simultaneous capture of multiple fingers) adopted in the BPR start at 40.
This update does not impact any existing parts of Part 1 or Part 2 of the standard.
Proposed text to be inserted immediately following the existing Note to Table 12 in Part 1 and Table 212 part 2:
The above table is extended with minimum dimensions for common 2-finger and 3-finger combinations captured by mobile ID devices. Note that mobile devices can use the codes defined in the above table, as well as those presented here.
Table 12.A (Table 212.A for Part 2)
|
Finger position |
Finger code |
Min image area (cm2) |
Min Width (mm) (in) |
Min Length (mm) (in) |
|
2-Finger Combinations |
|
|
|
|
|
Right index/middle |
40 |
15.47 |
40.6 1.6 |
38.1 1.5 |
|
Right middle/ring |
41 |
15.47 |
40.6 1.6 |
38.1 1.5 |
|
Right ring/little |
42 |
15.47 |
40.6 1.6 |
38.1 1.5 |
|
Left index/middle |
43 |
15.47 |
40.6 1.6 |
38.1 1.5 |
|
Left middle/ring |
44 |
15.47 |
40.6 1.6 |
38.1 1.5 |
|
Left ring/little |
45 |
15.47 |
40.6 1.6 |
38.1 1.5 |
|
Right index/ Left index |
46 |
15.47 |
40.6 1.6 |
38.1 1.5 |
|
3-Finger Combinations |
|
|
|
|
|
Right index/middle/ring |
47 |
24.19 |
63.5 2.5 |
38.1 1.5 |
|
Right middle/ring/little |
48 |
24.19 |
63.5 2.5 |
38.1 1.5 |
|
Left index/middle/ring |
49 |
24.19 |
63.5 2.5 |
38.1 1.5 |
|
Left index/middle/ring |
50 |
24.19 |
63.5 2.5 |
38.1 1.5 |
For comments, questions, or more information relating to the Standard, you may contact me at:
Fingerprint Standards
100 Bureau Dr. Mail Stop 8940
Gaithersburg, MD 20899-8940
Voice: (301) 975-5663
Fax: (301) 975-5287
E-mail: bwing@nist.gov
NIST is an agency of the U.S. Commerce Department
Contact webmaster@magi.nist.gov with corrections/comments.
NIST Privacy Policy/Security Notice NIST Disclaimer FOIA
Created October 13, 2005.
Last modified September 21, 2009.