User permission allocation method and device

A user permission allocation device, comprising:

• a non-transitory computer readable medium having instructions stored thereon;
• and
• a computer processor coupled to the non-transitory computer readable medium and configured to execute the instructions to:
• acquire currently collected image information, wherein the image information comprises facial feature information of a user;
• determine a difference degree of the current facial feature information of the user according to the facial feature information, which is acquired by the computer processor, of the user and facial feature information comprised in stored standard sample information;
• adjust, according to the difference degree, a matching threshold corresponding to the standard sample information by:
• information;
• comparing the difference degree with a preset difference threshold;
• decreasing the matching threshold corresponding to the standard sample information when the difference degree is greater than the preset difference threshold by;
• calculating a difference between the difference degree and the preset difference threshold;
• determining, according to a preset correspondence between the difference and an adjustment amplitude of the matching threshold, an adjustment amplitude of the matching threshold corresponding to the calculated difference;
• and
• decreasing the matching threshold corresponding to the standard sample information by the determined adjustment amplitude;
• keeping the matching threshold corresponding to the standard sample information unchanged when the difference degree is equal to the preset difference threshold;
• and
• increasing the matching threshold corresponding to the standard sample information or keeping the matching threshold unchanged when the difference degree is less than the preset difference threshold;
• determine a matching degree of the collected facial feature information of the user according to a matching threshold obtained after adjustment;
• and
• allocate the user permission to the user according to the matching degree.

A non-transitory computer-readable storage medium storing programming instructions for execution by at least one processor, the programming instructions instruct the at least one processor to:

• acquire currently collected image information, wherein the image information comprises facial feature information of a user;
• determine a difference degree of the current facial feature information of the user according to the facial feature information, which is acquired by the computer processor, of the user and facial feature information comprised in stored standard sample information;
• adjust, according to the difference degree, a matching threshold corresponding to the standard sample information by:
• information;
• comparing the difference degree with a preset difference threshold;
• decreasing the matching threshold corresponding to the standard sample information when the difference degree is greater than the preset difference threshold by:
• calculating a difference between the difference degree and the preset difference threshold;
• determining, according to a preset correspondence between the difference and an adjustment amplitude of the matching threshold, an adjustment amplitude of the matching threshold corresponding to the calculated difference;
• and
• decreasing the matching threshold corresponding to the standard sample information by the determined adjustment amplitude;
• keeping the matching threshold corresponding to the standard sample information unchanged when the difference degree is equal to the preset difference threshold;
• and
• increasing the matching threshold corresponding to the standard sample information or keeping the matching threshold unchanged when the difference degree is less than the preset difference threshold;
• determine a matching degree of the collected facial feature information of the user according to the matching threshold obtained after adjustment;
• and
• allocate the user permission to the user according to the matching degree.