Multi-frame depth image information identification

摘要

Embodiments of the present invention relate to systems, methods, and computer storage media for identifying, authenticating, and authorizing a user to a device. A dynamic image, such as a video captured by a depth camera, is received. The dynamic image provides data from which geometric information of a portion of a user may be identified as well as motion information of a portion of the user may be identified. Consequently, a geometric attribute is identified from the geometric information. A motion attribute may also be identified from the motion information. The geometric attribute is compared to one or more geometric attributes associated with authorized users. Additionally, the motion attribute may be compared to one or more motion attributes associated with the authorized users. A determination may be made that the user is an authorized user. As such the user is authorized to utilize functions of the device.

主权项

1. A method in a computing environment utilizing a processor and memory for authenticating a user to a device, the method comprising:
capturing with a depth camera on the device, a first dynamic depth image comprised of geometric information and motion information of a portion of the user from a plurality of angles, the geometric information useable to generate at least a partial three-dimensional representation of the portion of the user; storing the captured first dynamic depth image in an authorized user attribute repository as an authorized entity; identifying, with the processor, a first attribute from the geometric information and a second attribute from the motion information; subsequently, detecting an acceleration of the device from a first position to a second position, by an accelerometer on the device; upon detection of the acceleration of the device, the accelerometer triggering the depth camera to capture a second dynamic depth image; receiving at the device, the second dynamic depth image of the portion of the user captured at an angle within the plurality of angles, the second dynamic depth image also comprised of geometric information of the portion of the user and motion information of the portion of the user; identifying, with the processor, the first attribute from the geometric information and the second attribute from the motion information of the second dynamic depth image; comparing, with the processor, the first attribute from the geometric information and the second attribute from the motion information of the second dynamic depth image to one or more attributes associated with the authorized entity; and when the first attribute and the second attribute of the second dynamic depth image are matched to the authorized entity, authorizing the user to utilize one or more functions of the device.