Face Recognition Performance Using Additional Image Features
First Claim
1. A method of recognizing a face in an acquired digital image, comprising:
- using a processor;
receiving a first acquired image;
detecting a first face region within the first acquired image having a given size and a respective location within the first acquired image;
extracting first faceprint data uniquely identifying the first face region along with first peripheral region data around the first face region;
storing the first faceprint and peripheral region data, including associating the first peripheral region data with the first face region;
receiving a second acquired image;
detecting a second face region within the second acquired image;
extracting second peripheral region data around the second face region;
comparing the first and second peripheral region data;
identifying the second face region as the same identity as the first face region when the first peripheral region data matches the second peripheral region data; and
confirming the second face region as said same identify as the first face region when the first and second face regions match.
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Abstract
A technique is provided for recognizing faces in an image stream using a digital image acquisition device. A first acquired image is received from an image stream. A first face region is detected within the first acquired image having a given size and a respective location within the first acquired image. First faceprint data uniquely identifying the first face region are extracted along with first peripheral region data around the first face region. The first faceprint and peripheral region data are stored, and the first peripheral region data are associated with the first face region. The first face region is tracked until a face lock is lost. A second face region is detected within a second acquired image from the image stream. Second peripheral region data around the second face region are extracted. The second face region is identified upon matching the first and second peripheral region data.
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Citations
42 Claims
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1. A method of recognizing a face in an acquired digital image, comprising:
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using a processor; receiving a first acquired image; detecting a first face region within the first acquired image having a given size and a respective location within the first acquired image; extracting first faceprint data uniquely identifying the first face region along with first peripheral region data around the first face region; storing the first faceprint and peripheral region data, including associating the first peripheral region data with the first face region; receiving a second acquired image; detecting a second face region within the second acquired image; extracting second peripheral region data around the second face region; comparing the first and second peripheral region data; identifying the second face region as the same identity as the first face region when the first peripheral region data matches the second peripheral region data; and confirming the second face region as said same identify as the first face region when the first and second face regions match. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. One or more non-transitory processor-readable storage media having code embedded therein for programming a processor to perform a method of recognizing a face in an acquired digital image, wherein the method comprises:
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receiving a first acquired image; detecting a first face region within the first acquired image having a given size and a respective location within the first acquired image; extracting first faceprint data uniquely identifying the first face region along with first peripheral region data around the first face region; storing the first faceprint and peripheral region data, including associating the first peripheral region data with the first face region; receiving a second acquired image; detecting a second face region within the second acquired image; extracting second peripheral region data around the second face region; comparing the first and second peripheral region data; identifying the second face region as the same identity as the first face region when the first peripheral region data matches the second peripheral region data; and confirming the second face region as said same identify as the first face region when the first and second face regions match. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A portable, digital image acquisition device, comprising a lens and image sensor for acquiring digital images, a processor, and a processor-readable medium having code embedded therein for programming the processor to perform a method of recognizing a face in an acquired digital image, wherein the method comprises:
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receiving a first acquired image; detecting a first face region within the first acquired image having a given size and a respective location within the first acquired image; extracting first faceprint data uniquely identifying the first face region along with first peripheral region data around the first face region; storing the first faceprint and peripheral region data, including associating the first peripheral region data with the first face region; receiving a second acquired image; detecting a second face region within the second acquired image; extracting second peripheral region data around the second face region; comparing the first and second peripheral region data; identifying the second face region as the same identity as the first face region when the first peripheral region data matches the second peripheral region data; and confirming the second face region as said same identify as the first face region when the first and second face regions match. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method of recognizing a face in an acquired digital image, comprising:
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using a processor; receiving a first acquired image; detecting a first face region within the first acquired image having a given size and a respective location within the first acquired image; extracting first faceprint data uniquely identifying the first face region along with first peripheral region data around the first face region; and storing the first faceprint and peripheral region data, including associating the first peripheral region data with the first face region; identifying a second face region within a second acquired image as the same identity as said first face region upon matching the first and second peripheral region data; and confirming the identity of the second face region as the same identity as the first face region when the first and second face regions match. - View Dependent Claims (32, 33, 34)
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35. One or more non-transitory processor-readable storage media having code embedded therein for programming a processor to perform a method of recognizing a face in an acquired digital image, wherein the method comprises:
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receiving a first acquired image; detecting a first face region within the first acquired image having a given size and a respective location within the first acquired image; extracting first faceprint data uniquely identifying the first face region along with first peripheral region data around the first face region; storing the first faceprint and peripheral region data, including associating the first peripheral region data with the first face region; identifying a second face region within a second acquired image as the same identity as said first face region upon matching the first and second peripheral region data; and confirming the identity of the second face region as the same identity as the first face region when the first and second face regions match. - View Dependent Claims (36, 37, 38)
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39. A portable, digital image acquisition device, comprising a lens and image sensor for acquiring digital images, a processor, and a processor-readable medium having code embedded therein for programming the processor to perform a method of recognizing a face in an acquired digital image, wherein the method comprises:
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acquiring a first acquired image; detecting a first face region within the first acquired image having a given size and a respective location within the first acquired image; extracting first faceprint data uniquely identifying the first face region along with first peripheral region data around the first face region; and storing the first faceprint and peripheral region data, including associating the first peripheral region data with the first face region; identifying a second face region within a second acquired image as the same identity as said first face region upon matching the first and second peripheral region data; and confirming the identity of the second face region as the same identity as the first face region when the first and second face regions match. - View Dependent Claims (40, 41, 42)
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Specification