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US 10,762,368 B2Granted
Facial recognition-based authentication
AssigneeAlibaba Group Holding Limited
InventorJunsui Lin
Life of this patent
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Abstract
Facial recognition-based authentication comprises obtaining a first image of a target object, updating projection information associated with a display by a display device, obtaining a second image of the target object, the second image being an image of the target object after the projection information is updated, obtaining an image difference data based at least in part on the first image and the second image, and determining whether the target object is a virtual object based at least in part on the image difference data.
Claims28
A device, comprising:
- a display screen configured to make a projection onto a target object according to projection information, wherein the projection information comprises display content displayed by the display screen or parameter information of the display screen, and wherein the projection information is updated based at least in part on updating the display content or the parameter information of the display screen;
- an image capturing device configured to capture a first image of the target object after the projection information has been projected onto the target object, and to capture a second image of the target object after the projection information is updated;
- and
- one or more processors configured to obtain image difference data based at least in part on the first image and the second image, and to determine whether the target object is a virtual object based at least in part on the image difference data, wherein the image difference data corresponds to an image artifact that is indicative of an update to the projection information, the update being based on the updating of the display content or the parameter information of the display screen, the image artifact being based at least in part on a reflection of the update corresponding to the second image.
1 more element
A system, comprising:
- a display device configured to make a projection onto a target object according to projection information, wherein the projection information comprises display content displayed by the display device or parameter information of the display device, and the projection information is updated based at least in part on updating the display content or the parameter information of the display device;
- an image capturing device configured to communicate with the display device to capture a first image of the target object after the projection information has been projected onto the target object, and to capture a second image of the target object after the projection information is updated;
- and
- a computer terminal configured to obtain image difference data based at least in part on the first image and the second image, and to determine whether the target object is a virtual object based at least in part on the image difference data, wherein the image difference data corresponds to an image artifact that is indicative of an update to the projection information, the update being based on the updating of the display content or the parameter information of the display device, the image artifact being based at least in part on a reflection of the update corresponding to the second image.
1 more element
A method, comprising:
- obtaining a first image of a target object;
- updating projection information associated with a display by a display device;
- obtaining a second image of the target object, the second image being an image of the target object after the projection information is updated;
- obtaining an image difference data based at least in part on the first image and the second image, wherein the image difference data corresponds to an image artifact that is indicative of an update to the projection information, the update being based on the updating of the display content or the parameter information of the display device, the image artifact being based at least in part on a reflection of the update corresponding to the second image;
- and
- determining whether the target object is a virtual object based at least in part on the image difference data.
3 more elements
Dependencies are inferred from the claim text.