Systems and methods for determining eye closure status

A computing system, comprising:

• one or more processors;
• memory storing one or more programs to be executed by the one or more processor, the one or more programs comprising instructions for determining an eye closure status of a respective subject by a method comprising:
• (a) obtaining, in electronic format, a first lower eyelid trace, wherein the first lower eyelid trace comprises, for each respective time increment in a plurality of consecutive time increments, a respective location of a lower eyelid of a first eye of the respective subject;
• (b) obtaining, in electronic format, a first upper eyelid trace, wherein the first upper eyelid trace comprises, for each respective time increment in the plurality of consecutive time increments, a respective location of an upper eyelid of the first eye;
• (c) obtaining, between a first and second time increment within the plurality of consecutive time increments, a first minimum difference between the location of the upper eyelid and the lower eyelid of the first eye across the time increments in the plurality of consecutive time increments that are between the first and second time increment;
• (d) obtaining, between the first and second time increment within the plurality of consecutive time increments, a first maximum difference between the location of the upper eyelid and the lower eyelid of the first eye across the time increments in the plurality of consecutive time increments that are between the first and second time increment;
• (e) passing (i) the first minimum difference and a (ii) difference between the first maximum difference and the first minimum difference through an activation function thereby obtaining a first result;
• and
• (f) using the first result to provide an eye closure status of the first eye.

A non-transitory computer readable storage medium storing one or more programs for training a neural network to determine an eye closure status of a respective subject, the one or more programs configured for execution by a computer, wherein the one or more programs comprise instructions for:

• (a) obtaining, in electronic format, a first lower eyelid trace, wherein the first lower eyelid trace comprises, for each respective time increment in a plurality of consecutive time increments, a respective location of a lower eyelid of a first eye of the respective subject;
• (b) obtaining, in electronic format, a first upper eyelid trace, wherein the first upper eyelid trace comprises, for each respective time increment in the plurality of consecutive time increments, a respective location of an upper eyelid of the first eye;
• (c) obtaining, between a first and second time increment within the plurality of consecutive time increments, a first minimum difference between the location of the upper eyelid and the lower eyelid of the first eye across the time increments in the plurality of consecutive time increments that are between the first and second time increment;
• (d) obtaining, between the first and second time increment within the plurality of consecutive time increments, a first maximum difference between the location of the upper eyelid and the lower eyelid of the first eye across the time increments in the plurality of consecutive time increments that are between the first and second time increment;
• (e) passing (i) the first minimum difference and a difference between the first maximum difference and (ii) the first minimum difference through an activation function thereby obtaining a first result;
• and
• (f) using the first result to provide an eye closure status of the first eye.