Face detecting camera and method
AssigneeEastman Kodak Company
InventorsLawrence A. Ray, Henry Nicponski
Life of this patent
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Abstract
A method for determining the presence of a face from image data utilizes at least first and second algorithms. The first algorithm prescreens the image data, by determining a plurality of face candidates utilizing a pattern matching technique that identifies image windows likely to contain faces based on color and shape information. The second algorithm processes the face candidates determined by the first algorithm, and uses a posterior probability function classifier to determine the presence of the face.
Claims19
A method for determining the presence of a face from image data, said method comprising the steps of:
- (a) prescreening the image data with a first algorithm by using an algorithm interface adapter, the first algorithm determining a plurality of face candidates utilizing a pattern matching technique that identifies image windows likely to contain faces based on color and shape information;
- (b) operating on the face candidates with a second algorithm, the second algorithm processing the face candidates using a posterior probability function classifier to determine the presence of the face;
- and
- wherein the first algorithm has a first rate of false positives, and the second algorithm has a second rate of false positives lower than the first rate of false positives.
A method for determining the presence of a face from image data, said method comprising the steps of:
- (a) prescreening the image data with a first algorithm by using an algorithm interface adapter, the first algorithm determining a plurality of face candidates;
- and
- (b) operating on the face candidates with a second algorithm, the second algorithm processing the face candidates to determine the presence of the face;
- wherein the first algorithm has a first rate of false positives, and the second algorithm has a second rate of false positives lower than the first rate of false positives.
A computer program product for determining the presence of a face, comprising:
- a computer readable storage medium having a computer program stored thereon for performing the steps of:
- (a) prescreening the image data with a first algorithm, the first algorithm determining a plurality of face candidates utilizing a pattern matching technique that identities image windows likely to contain faces based on color and shape information;
- and
- (b) operating on the face candidates with a second algorithm, the second algorithm processing the face candidates using a posterior probability function classifier to determine the presence of the face;
- and
- wherein the first algorithm has a first rate of false positives, and the second algorithm has a second rate of false positives lower than the first rate of false positives.
Dependencies are inferred from the claim text.