Face recognition in noisy environments

A system for accessing a computing device, the system comprising:

• a computer-readable storage device storing computer-executable instructions;
• and
• one or more hardware processors in communication with the computer-readable storage device that, having executed the computer-executable instructions, configure the system to:
• register a first image of the user as a first image template;
• acquire a second image of the user;
• compare the acquired second image with the first image template;
• determining a first authentication failure based on the comparison of the acquired second image and the first image template;
• determine at least one quality metric value of the acquired second image;
• compare the at least one quality metric value with a corresponding quality metric threshold value;
• convert the acquired second image of the user to a second image template based on the comparison of the at least one quality metric value with the corresponding quality metric threshold value;
• receive a request to access the computing device;
• acquire a third image of a user in response to the received request;
• determine that the second image template was used for authenticating the user within a predetermined time period, the second image template being used to authenticate the user after the first authentication failure of the user using a first image template;
• extend a transient timer by a predetermined amount in response to the determination that the second image template was used for authenticating the user within the predetermined time period;
• associate the extended transient timer with the second image template by configuring the second image template to be usable to authenticate the user within a duration of the extended transient timer;
• compare the acquired third image of the user with the second image template;
• and
• grant access to the computing device based on the comparison of the acquired first third image of the user with the second image template.

A system for accessing a computing device, the system comprising:

• means for registering a first image of the user as a first image template;
• means for acquiring a second image of the user;
• means for comparing the acquired second image with the first image template;
• means for determining a first authentication failure based on the comparison of the acquired second image and the first image template;
• means for determining at least one quality metric value of the acquired second image;
• means for comparing the at least one quality metric value with a corresponding quality metric threshold value;
• means for converting the acquired second image of the user to a second image template based on the comparison of the at least one quality metric value with the corresponding quality metric threshold value;
• means for receiving a request to access the computing device;
• means for acquiring a third image of a user in response to the received request;
• means for determining that the second image template was used for authenticating the user within a predetermined time period, the second image template being used to authenticate the user after the first authentication failure of the user using a first image template;
• means for extending a transient timer by a predetermined amount in response to the determination that the second image template was used for authenticating the user within the predetermined time period;
• means for associating the extended transient timer with the second image template by configuring the second image template to be usable to authenticate the user within a duration of the extended transient timer;
• means for comparing the acquired third image of the user with the second image template;
• and
• means for granting access to the computing device based on the comparison of the acquired third image of the user with the second image template.

A method for accessing a computing device, the method comprising:

• registering a first image of the user as a first image template;
• acquiring a second image of the user;
• comparing the acquired second image with the first image template;
• determining a first authentication failure based on the comparison of the acquired second image and the first image template;
• determining at least one quality metric value of the acquired second image;
• comparing the at least one quality metric value with a corresponding quality metric threshold value;
• converting the acquired second image of the user to a second image template based on the comparison of the at least one quality metric value with the corresponding quality metric threshold value;
• receiving a request to access the computing device;
• acquiring a third image of a user in response to the received request;
• determining that the second image template was used for authenticating the user within a predetermined time period, the second image template being used to authenticate the user after the first authentication failure;
• extending a transient timer by a predetermined amount in response to the determination that the second image template was used for authenticating the user within the predetermined time period;
• associating the extended transient timer with the second image template by configuring the second image template to be usable to authenticate the user within a duration of the extended transient timer;
• comparing the acquired third image of the user with the second image template;
• and
• granting access to the computing device based on the comparison of the acquired third image of the user with the second image template.