Biometrics is the science and technology of measuring and analyzing biological data, such as the imagery of the face or iris. There are 2 problems that need to be overcome with the acquisition of biometric data: (i) ensuring that the biological data is within the field of coverage of one or more of the biometric sensors, and (ii) ensuring that the data is acquired as uniformly as possible so that comparison of data from the same user across different time periods is facilitated.
One existing approach to ensuring that the biological data is within the field of coverage is shown in
Because the cameras are all at the same height, then the vertical skewing will be cancelled out equally in all camera views. If an attention mechanism at the camera cannot be applied due to the physical constraints of the system, then an alternative more complex solution to this third step is a fore shortening compensation algorithm to remove the vertical skewing.
While this discussion has focused on allowing a substantially vertical region of interest to be covered using a horizontal arrangement of cameras, alternatively the same method could be used such that a substantially horizontal region of interest is covered using a vertical arrangement of cameras. The cameras could also be pan/tilt/zoom cameras, either moved directly or by means of a mirror.
The present application claims priority to and is a continuation of U.S. application Ser. No. 14/075,232 entitled “BIOMETRIC CAMERA MOUNT SYSTEM” and filed on Nov. 8, 2013, which claims priority to and is a continuation of U.S. application Ser. No. 13/464,710 entitled “BIOMETRIC CAMERA MOUNT SYSTEM” and filed on May 4, 2012, which claims priority to and is a continuation of U.S. application Ser. No. 12/749,663 entitled “BIOMETRIC CAMERA MOUNT SYSTEM” filed on Mar. 30, 2010, which claims the benefit of and priority to U.S. Provisional Application 61/164,528, entitled “BIOMETRIC CAMERA MOUNT SYSTEM” and filed on Mar. 30, 2009, all of which are incorporated herein by reference in their entirety.
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Number | Date | Country | |
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Parent | 14075232 | Nov 2013 | US |
Child | 14687444 | US | |
Parent | 13464710 | May 2012 | US |
Child | 14075232 | US | |
Parent | 12749663 | Mar 2010 | US |
Child | 13464710 | US |