Smile detection systems and methods
AssigneeHewlett-Packard Development Company, L.P.
InventorsDan L. Dalton, Daniel Bloom, David Staudacher
Life of this patent
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Abstract
Systems and methods of smile detection are disclosed. An exemplary method comprises generating a search map (400) for a subset of an image (300). The method also comprises identifying a plurality of candidates (400a-f) representing mouth corners. The method also comprises generating parabolas (410) between each pair of candidates representing mouth corners. The method also comprises analyzing contour of at least one of the parabolas to determine whether the mouth curves substantially upward to form a smile or curves substantially downward to form a frown.
Claims15
A method of smile detection in an electronic image device, comprising:
- generating a search map for a subset of an image;
- identifying a plurality of candidates representing mouth corners;
- generating parabolas between each pair of candidates representing mouth corners;
- and
- analyzing contour of at least one of the parabolas to determine whether the mouth curves substantially upward to form a smile or curves substantially downward to form a frown.
A system for smile detection comprising:
- a computer-readable storage for storing an image;
- image converter operatively associated with the computer-readable storage, the image converter configured to generate a search map for a subset of the image;
- an image analyzer operatively associated with the image converter, the image analyzer configured to:
- identify in the search map a plurality of candidates representing mouth corners;
- generate parabolas between one or more pair of the candidates;
- and
- determine based on a path of the parabolas whether the mouth curves substantially upward to form a smile or curves substantially downward to form a frown.
An electronic image analyze comprising computer readable program code stored on a computer readable storage and executable by a processor to:
- identify in a search map for a subset of an image, a plurality of candidates representing mouth corners;
- generate parabolas between pairs of the candidates representing mouth corners;
- and
- determine whether the mouth curves substantially upward to form a smile or curves substantially downward to form a frown.
Dependencies are inferred from the claim text.