| 摘要 |
<p>PROBLEM TO BE SOLVED: To determine an operation intended as an operation instruction by a user as an operation instruction even when the user concentrates.SOLUTION: A sight line position ((A) reference) of a user which can estimate whether the user concentrates is acquired, and a threshold TH is subjected to change setting such that a threshold TH (dotted line reference (B)) for determining whether the user's operation is an operation instruction comes down more as a degree of the user's concentration based on the acquired sight line position of the user rises. Then, whether the user's operation is an operation instruction intended by the user is determined by being compared with a threshold obtained by performing change setting of operation information representing the user's operation.</p> |
