Patent ID: 9513720
Filing Date: 2016-12-06
CPC Classification: G01B,G06F,G06T

Claim Text:
1. A stylus detecting device that detects a pointed position which is a position pointed to by a stylus, the device comprising: a first camera; a second camera that is located at a position different from a position of the first camera and captures an image of at least a part of a capture target of the first camera; a display unit; and a control unit that includes (i) an axis detecting unit configured to detect a three-dimensional position and attitude of an axis of the stylus by using two images captured respectively by the first camera and the second camera, (ii) a pointed position detecting unit configured to calculate as the pointed position a point of intersection between a straight line indicated by the axis of the stylus whose three-dimensional position and attitude have been detected by the axis detecting unit and a target plane having a predetermined positional relationship with respect to the first camera and the second camera, (iii) a display processing unit configured to display in the display unit a motion path traveled by a pointer displayed at a predetermined position in the display unit corresponding to the pointed position calculated by the pointed position detecting unit, and (iv) a function setting unit configured to adjust a setting to one of a first function of drawing a motion path of the pointed position in a first drawing mode and a second function of drawing the motion path in a second drawing mode different from the first drawing mode, wherein the display processing unit is configured to display the motion path according to the one of the first function and the second function of the setting adjusted by the function setting unit.