State estimation device, state estimation method, and program

摘要

A verification value is calculated for an estimation result. The estimation result is corrected on the basis of the calculated verification value. This allows for output of a highly reliable estimation result. If it is determined that the class to which the state of a driver belongs has transitioned continuously, the estimation result is outputted. If it cannot be determined that the class to which the state of the driver belongs has transitioned continuously, a previous estimation result is outputted instead of the latest estimation result. This allows for output of a highly reliable estimation result.

主权项

1. A state estimation device to estimate the state of a driver, the state estimation device comprising:
first identificator to identify, of a first group and a second group, the group the state of the driver belongs to using a feature amount about the driver as an input value, each of the first group and the second group having a plurality of classes defined as based on a degree of the activity of the driver; second identificator to identify, of a third group and a forth group, the group the state of the driver belongs to using a feature amount about the driver as an input value, each of the third group and the fourth group having a plurality of classes defined as based on a degree of the activity of the driver; estimator to estimate the class to which the state of the driver belongs on the basis of the identification result of the first identificator and the identification result of the second identificator; verifier to verify an estimation result of the estimator; and outputter to output an estimation result that corresponds to a verification result of the verifier, wherein the plurality of classes correspond to different degrees of sleepiness or alertness of the driver.