System and method providing improved head motion estimations...

Image analysis – Applications – Personnel identification

Reexamination Certificate

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C382S154000, C382S181000, C348S155000, C356S027000

Reexamination Certificate

active

07853053

ABSTRACT:
The computer-readable media provides improved procedures to estimate head motion between two images of a face. Locations of a number of distinct facial features are determined in two images. The locations are converted into as a set of physical face parameters based on the symmetry of the identified distinct facial features. An estimation objective function is determined by: (a) estimating each of the set of physical parameters, (b) estimating a first head pose transform corresponding to the first image, and (c) estimating a second head pose transform corresponding to the second image. The motion is estimated between the two images based on the set of physical face parameters by multiplying each term of the estimation objective function by a weighted contribution factor based on the confidence of data corresponding to the estimation objective function.

REFERENCES:
patent: 5864630 (1999-01-01), Cosatto et al.
patent: 6118887 (2000-09-01), Cosatto et al.
patent: 6580810 (2003-06-01), Yang et al.
patent: 6714660 (2004-03-01), Ohba

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