Lighting correction for the outdoor environment with...

Details Lighting correction for the outdoor environment with... Lighting correction for the outdoor environment with...

2007-06-05

2007-06-05

Desire, Gregory (Department: 2624)

Image analysis

Applications

Personnel identification

C345S426000, C356S601000, C382S154000, C382S203000

Reexamination Certificate

active

10340111

ABSTRACT:
Systems and methods for identifying an object, such as a human face, are described. The systems and methods obtain parameters indicative of direct light and disperse light illuminating the object. Using these parameters, an albedo of the object is computed. The albedo is related to the radiance of the object after light is shone on the object, and is used to identify the object.

REFERENCES:
patent: 5838428 (1998-11-01), Pipitone et al.
patent: 5867265 (1999-02-01), Thomas
patent: 6269197 (2001-07-01), Wallack
patent: 6697518 (2004-02-01), Belhumeur et al.
patent: 6718049 (2004-04-01), Pavlidis et al.
patent: 6850872 (2005-02-01), Marschner et al.
patent: 2006/0182367 (2006-08-01), Moghaddam

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