Fraud detection for facial recognition systems
First Claim
Patent Images
1. A computer implemented method, comprising:
- under control of one or more computer systems configured with executable instructions,capturing a first image using a camera, the first image including first image data corresponding to at least one portion of a human face taken at a first angle relative to the camera;
analyzing the first image data to identify the at least one portion of the human face;
capturing a second image using the camera, the second image including second image data corresponding to the at least one portion of the human face taken at a second angle relative to the camera;
analyzing the first image data and the second image data to detect changes in one or more characteristics corresponding to the at least one portion of the human face;
determining, based at least in part on the changes in the one or more characteristics, that an artificial representation of the at least one portion of the human face is presented in the first image and the second image; and
preventing access to at least one function of a computing device.
1 Assignment
0 Petitions
Accused Products
Abstract
Approaches are described which enable a computing device (e.g., mobile phone, tablet computer) to utilize one or more facial recognition techniques to control access to the device and to detect when artificial representations of a user, such as a picture or photograph, are being used in an attempt to gain access to the device. Evidence indicative of artificial representations may include lack of changes in facial skin color between multiple images captured by a camera, ability to track one or more features of the human face while the camera is rotated or moved, presence of secular reflections caused by an illumination device, absence of shadows in the image, and others.
-
Citations
20 Claims
-
1. A computer implemented method, comprising:
under control of one or more computer systems configured with executable instructions, capturing a first image using a camera, the first image including first image data corresponding to at least one portion of a human face taken at a first angle relative to the camera; analyzing the first image data to identify the at least one portion of the human face; capturing a second image using the camera, the second image including second image data corresponding to the at least one portion of the human face taken at a second angle relative to the camera; analyzing the first image data and the second image data to detect changes in one or more characteristics corresponding to the at least one portion of the human face; determining, based at least in part on the changes in the one or more characteristics, that an artificial representation of the at least one portion of the human face is presented in the first image and the second image; and preventing access to at least one function of a computing device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
8. A computing device, comprising:
-
a camera; at least one processor; and memory including instructions that, when executed by the at least one processor, cause the computing device to; capture a first image using the camera, the first image including first image data corresponding to at least one portion of a human face taken at a first angle relative to the camera; capture a second image using the camera, the second image including second image data corresponding to the at least one portion of the human face taken at a second angle relative to the camera; analyze the first image data and the second image to detect changes in one or more characteristics corresponding to the at least one portion of the human face; determine, based at least in part on the changes in the one or more characteristics, that an artificial representation of the at least one portion of the human face is presented in the first image and the second image; and prevent access to at least one function of the computing device. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A non-transitory computer readable storage medium storing one or more sequences of instructions executable by one or more processors to perform a set of operations comprising:
-
capturing a first image using a camera, the first image including first image data corresponding to at least one portion of a human face taken at a first angle relative to the camera; capturing a second image using the camera, the second image including second image data corresponding to the at least one portion of the human face taken at a second angle relative to the camera; analyzing the first image data and the second image to detect changes in one or more characteristics corresponding to the at least one portion of the human face; determining, based at least in part on the changes in the one or more characteristics, that an artificial representation of the at least one portion of the human face is presented in the first image and the second image; and preventing access to at least one function of a computing device. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification