Patent ID: 9524421
Filing Date: 2016-12-20
CPC Classification: G06F,G06K

Claim Text:
1. A method, comprising: emitting light from a device toward an object; capturing an image of the object using a sensor, comprising receiving the light by the sensor; identifying at least two landmarks within the image of the object; determining a number of pixels in the image disposed between the at least two landmarks; determining a measured distance between the device and the object based on the number of pixels; determining a reflectivity distance between the device and the object based on an amount of light received by the sensor; determining a time of flight distance between the device and the object; comparing the time of flight distance, the reflectivity distance, and the measured distance; determining whether the object is authorized to operate the device based on the comparison of the time of flight distance, the reflectivity distance, and the measured distance; and providing an access level to the device based on the determination of whether the object is authorized to operate the device.