Detecting facial expressions in digital images
First Claim
Patent Images
1. A method of in-camera processing to create a photographic record of a captured image of a group of faces by increasing smiling faces in the image, the method comprising:
- acquiring the captured image with a camera having an image sensor for acquiring digital images;
providing one or more digitally-acquired first images of the group of faces in addition to the captured image;
from among the group of faces, identifying a number of non-smiling faces in one of the images;
based, at least in part, on the number of non-smiling faces, initiating a plurality of operations including, when a predetermined number of non-smiling faces are present in said one of the images;
(i) delaying acquisition and recording of the captured image to allow time for reducing non-smiling faces in the captured image relative to said number of non-smiling faces in said one of the images; and
(ii) replacing a face region in the captured image by combining a face region in at least one of the one or more digitally-acquired images into the captured image; and
storing the captured image with the replaced face region as digital content in a mass storage device.
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Abstract
A method and system for detecting facial expressions in digital images and applications therefore are disclosed. Analysis of a digital image determines whether or not a smile and/or blink is present on a person'"'"'s face. Face recognition, and/or a pose or illumination condition determination, permits application of a specific, relatively small classifier cascade.
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Citations
24 Claims
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1. A method of in-camera processing to create a photographic record of a captured image of a group of faces by increasing smiling faces in the image, the method comprising:
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acquiring the captured image with a camera having an image sensor for acquiring digital images; providing one or more digitally-acquired first images of the group of faces in addition to the captured image; from among the group of faces, identifying a number of non-smiling faces in one of the images; based, at least in part, on the number of non-smiling faces, initiating a plurality of operations including, when a predetermined number of non-smiling faces are present in said one of the images; (i) delaying acquisition and recording of the captured image to allow time for reducing non-smiling faces in the captured image relative to said number of non-smiling faces in said one of the images; and (ii) replacing a face region in the captured image by combining a face region in at least one of the one or more digitally-acquired images into the captured image; and storing the captured image with the replaced face region as digital content in a mass storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 22)
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8. A portable digital image acquisition device for creating a photographic record of a captured image of a group of faces by increasing smiling faces in an image of a group of faces, the image acquisition device including a lens and an image sensor for acquiring digital images, a processor, and one or more processor-readable media having code embedded therein for programming the processor to perform a method of in-camera processing, wherein the method comprises:
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acquiring the captured image; providing one or more digitally-acquired first images of the group of faces in addition to the captured image; from among the group of faces, identifying a number of non-smiling faces in one of the images; based, at least in part, on the number of non-smiling faces in said one of the images, initiating a plurality of operations including, when at least a predetermined number of non-smiling faces are present in said one of the images; (i) delaying acquisition and recording of the captured image to allow time for reducing non-smiling faces in the captured image relative to the number of non-smiling faces in said one of the images; and (ii) replacing a face region in the captured image by combining a face region in at least one of the one or more digitally-acquired images into the captured image. - View Dependent Claims (9, 10, 11, 12, 13, 14, 21, 23)
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15. One or more non-transitory processor-readable media having code embedded therein for programming a processor to create a captured image of a group of faces with an image acquisition device according to a method of in-camera processing, the method comprising:
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acquiring the captured image; providing one or more digitally-acquired first images of the group of faces in addition to the captured image; from among the group of faces, identifying a number of non-smiling faces in one of the images; based, at least in part, on the number of non-smiling faces in said one of the images, initiating a plurality of operations including, when at least a predetermined number of non-smiling faces are present in said one of the first images; (i) delaying acquisition and recording of the captured image to allow time for reducing non-smiling faces in the captured image relative to the number of non-smiling faces in said one of the images; and (ii) replacing a face region in the captured image by combining a face region in at least one of the one or more digitally-acquired images into the captured image. - View Dependent Claims (16, 17, 18, 19, 20, 24)
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Specification