Sight-line detection method and device, and three-dimensional view-point measurement device

摘要: Method and device for detecting a line-of-sight of subject three-dimensional view-point measurement device. The method uses first camera, that measures the position pupil relative to coordinate system, second camera having light source arranged at known in forming corneal reflection center obtain data size vector r from an angle φ axis calculation means calculating direction based on information each camera. In determining relational formula, is made gaze point perform formula determined. stage, measured again using formula. A can be configured so as simultaneously measure lines-of-sights both eyes with two cameras sources.