Three-dimensional ear biometrics system and method
AssigneeGenex Technologies, Inc.
InventorZ. Jason Geng
Life of this patent
Estimating the term…
Abstract
A method of automatic human identification includes matching an image of a subject's ear against a database of images of ears from identified people to identify the subject.
Claims33
A method of automatic human identification, said method comprising matching an image of a subject's ear against a database of images of ears of identified subjects to identify said subject, wherein said database of images comprises a three-dimensional image of an ear of each of a plurality of identified subjects and a plurality of two-dimensional images generated from each of said three-dimensional images, wherein each of said two-dimensional images represents a varied orientation or illumination condition on a corresponding tree-dimensional image.
The method of claim 12, further comprising:
- matching an input image of an ear with images of said database.
A method of creating and using a database of ear images for automatic human identification comprising:
- generating a three-dimensional image of an ear for each of a number of identified people;
- and
- generating a database comprising a plurality of two-dimensional images based on each said three-dimensional image;
- wherein each of said plurality of two-dimensional images represents a varied orientation or illumination condition on said three-dimensional image.
An image matching method comprising performing an Eigen-ears identification method, said method further comprising:
- performing an Eigen-ear classification procedure on a plurality of two-dimensional ear images;
- and
- performing an Eigen-ear recognition procedure on a received two-dimensional ear image,
- wherein said Eigen-ear classification procedure comprises:
- computing a weight vector of each of said two dimensional ear images;
- said plurality of two-dimensional ear images being classified according to said weight vectors;
- and
- wherein said Eigen-ear recognition procedure comprises:
- computing a weight vector of said received two-dimensional ear image;
- and
- identifying said received two-dimensional ear image as belonging to a class if one of said weight vectors minimizes a Euclidean distance to said weight vector of said two-dimensional ear image below a threshold value.
A system for three-dimensional biometric identification comprising:
- a camera system;
- a database of images of identified ears, wherein said database of images comprises a tree-dimensional image of an ear of each of a plurality of identified subjects and a plurality of two-dimensional images generated from each of said three-dimensional images, wherein each of said two-dimensional images represents a varied orientation or illumination condition on a corresponding three-dimensional image;
- and
- a computing device communicatively coupled to said camera system and to said database of images of identified ears;
- wherein said computing device is configured to match an image of a subject's ear acquired by said camera system against said database of images of identified ears to identify said subject.
A system for three-dimensional biometric identification comprising:
- a means for generating a two-dimensional image of a subject's ear;
- a database of images of identified ears, wherein said database of images comprises a three-dimensional image of an ear of each of a plurality of identified subjects and a plurality of two-dimensional images generated from each of said three-dimensional images, wherein each of said two-dimensional images represents a varied orientation or illumination condition on a corresponding three-dimensional image;
- and
- a means for matching said two-dimensional image of a subject's ear against said database of images of identified ears to identify said subject.
Dependencies are inferred from the claim text.