| 摘要 |
PROBLEM TO BE SOLVED: To read information on a finger from above using a distance image sensor and the like, and to determine a touch position as intended by users when implementing touch detection with respect to a plane surface.SOLUTION: A user interface device is configured to: acquire a three-dimensional image of an operation surface and a region above the operation surface; extract a hand region from the three-dimensional image; specify a position of a fingertip; detect a touch to the operation surface on the basis of the operation surface included in the three-dimensional image, and the specified position of the fingertip; when the touch is detected, specify a direction of the fingertip; and determine a position having the position of the fingertip shifted by a prescribed amount in an opposite direction of the specified direction of the fingertip as a touch position.SELECTED DRAWING: Figure 8 |
