IMAGE CAPTURE CHALLENGE ACCESS

摘要

Aspects of image capture challenge access are described. In one embodiment, an access service of a computing device directs an imaging system to capture an image including facial fiducial features and determine whether the features correspond to an expected set of features. The access service may also issue a request for a response including, for example, a request to tilt or move the computing device, move an individual's face, or contort an individual's facial features. After the request for the response, the access service may capture a response image. The response image may include an adjustment to facial fiducial features. The access service may further determine whether the adjustment to the facial fiducial features corresponds to the request. Depending upon whether the adjustment corresponds to the request, the access service may permit or deny access to features of the computing device.

主权项

1. A non-transitory computer-readable medium embodying program code executable in at least one computing device, the program code being configured to cause the at least one computing device to at least:
capture, with an image sensor, a first reference image including a plurality of facial fiducial features; capture, with the image sensor, a second reference image including the plurality of facial fiducial features, the second reference image being captured based on at least one of a human-perceptible request or an adjustment to an optical attribute of image capture, the human-perceptible request or the adjustment to the optical attribute of image capture to enhance differentiation of the plurality of facial fiducial features as captured in the second reference image relative to the first reference image; and enable access to the at least one computing device depending on a plurality of image-based verifications, the plurality of image based verifications being configured to cause the at least one computing device to at least:
(1) conclude that a person has authorization to access the at least one computing device based a comparison between the facial fiducial features and an expected set of features; and(2) conclude that the person is physically present during the capture of the first and second reference images based on the differentiation of the facial fiducial features as captured in the second reference image relative to the first reference image.