| US 7,542,628 B2 | ||
| Method and apparatus for providing strobed image capture | ||
| Dominick Lolacono, Yardville, N.J. (US); James R. Matey, Princeton, N.J. (US); Oleg Naroditsky, Princeton, N.J. (US); Michael Tinker, Yardley, Pa. (US); and Thomas Zappia, Plainsboro, N.J. (US) | ||
| Assigned to Sarnoff Corporation, Princeton, N.J. (US) | ||
| Filed on Jan. 19, 2006, as Appl. No. 11/334,968. | ||
| Claims priority of provisional application 60/670203, filed on Apr. 11, 2005. | ||
| Prior Publication US 2006/0245623 A1, Nov. 02, 2006 | ||
| Int. Cl. G06K 7/00 (2006.01) | ||
| U.S. Cl. 382—312 [382/313; 382/318; 382/321] | 33 Claims |
| 1. A method for providing strobed image capture, comprising:
controlling, with a controller, at least one strobed illumination source to limit an amount of radiation from the illumination
source that is applied to an illumination sensitive object;
synchronizing, with the controller, at least one camera with the strobed illumination source; and
capturing at least one image of the illumination sensitive object with the at least one camera, the object being illuminated
at least in part by a plurality of photons from the strobed illumination source;
wherein the illumination sensitive object is an iris; and
wherein a light intensity of the strobed illumination source is increased during a strobe, while an average irradiance of
the strobed illumination source remains below a safety threshold.
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