| 摘要 |
PROBLEM TO BE SOLVED: To provide a visual line measuring device capable of judging an object position looked by a subject. SOLUTION: A sight line measuring device is provided with a visual line direction output means 1 for outputting the visual line direction synthesized by these eyeball direction and head direction by detecting the eyeball direction of a subject and the head direction of the subject, an intersection detecting means 2 for detecting an intersection C at which this visual line direction crosses either surface of a polyhedron T surrounding the subject and an intersection display means 3 for displaying a position of the detected intersection C on a development plane of the polyhedron T. |
