Non-touch optical detection of vital signs from amplified visual variations of reduced images
First Claim
1. An apparatus of motion amplification to communicate biological vital signs, the apparatus comprising:
- a cropper that is operable to receive at least two images and crop the image to exclude a border area of the images, generating at least two cropped images;
a skin-pixel-identifier that is operably coupled to the cropper and that identifies pixel values that are representative of the skin in at least two cropped images;
a first frequency filter that is operably coupled to the skin-pixel-identifier and that applies a frequency filter to output of the skin-pixel-identifier;
a regional facial clusterial module that is operably coupled to the first frequency filter and that applies spatial clustering to the output of the first frequency filter;
a second frequency filter that is operably coupled to the regional facial clusterial module and that is applied to the output of the regional facial clusterial module;
a temporal-variation identifier that is operably coupled to the second frequency filter and that identifies temporal variation of the output of the second frequency filter;
a vital-sign generator that is operably coupled to the temporal-variation identifier that generates at least one vital sign from the temporal variation; and
a display device that is operably coupled to the vital-sign generator that is operable to display the at least one vital sign.
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0 Petitions
Accused Products
Abstract
An apparatus includes a cropper operable to receive images and crop the images to exclude a border area, thus generating cropped images, a skin-pixel-identifier coupled to the cropper and that identifies pixel values that are representative of the skin in the cropped images, a first frequency filter coupled to the skin-pixel-identifier and that applies a frequency filter to output of the skin-pixel-identifier, a regional facial clusterial module coupled to the first filter and that applies spatial clustering to the output of the first filter, a second frequency filter operably coupled to the regional facial clusterial module and applied to the output of the regional facial clusterial module, a temporal-variation identifier coupled to the first filter and that identifies temporal variation of the output of the first filter, and a vital-sign generator coupled to the temporal-variation identifier that generates at least one vital sign from the temporal variation.
74 Citations
11 Claims
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1. An apparatus of motion amplification to communicate biological vital signs, the apparatus comprising:
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a cropper that is operable to receive at least two images and crop the image to exclude a border area of the images, generating at least two cropped images; a skin-pixel-identifier that is operably coupled to the cropper and that identifies pixel values that are representative of the skin in at least two cropped images; a first frequency filter that is operably coupled to the skin-pixel-identifier and that applies a frequency filter to output of the skin-pixel-identifier; a regional facial clusterial module that is operably coupled to the first frequency filter and that applies spatial clustering to the output of the first frequency filter; a second frequency filter that is operably coupled to the regional facial clusterial module and that is applied to the output of the regional facial clusterial module; a temporal-variation identifier that is operably coupled to the second frequency filter and that identifies temporal variation of the output of the second frequency filter; a vital-sign generator that is operably coupled to the temporal-variation identifier that generates at least one vital sign from the temporal variation; and a display device that is operably coupled to the vital-sign generator that is operable to display the at least one vital sign. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification