Patent ID: 8860713
Filing Date: 2014-10-14
Classification: A63F,G06F

Abstract:
1. A method of interfacing a person with a computer, the method comprising: acquiring an image, the image depicting a device comprising a shaft comprising an axis, a tsuba is connected to the shaft, the tsuba is disc shaped and has a planar circular region, the tsuba has a rotational symmetry relative to the axis, the tsuba comprises a first side that extends away from the axis and faces the shaft and a second side opposite the first side, and a handgrip is on the second side; identifying, in the image, an elliptical shape which represents the tsuba and an area of the elliptical shape which corresponds to a projection of the shaft onto the tsuba; determining an orientation of the elliptical shape; determining a position of the area on the elliptical shape; determining an orientation of the device based on the orientation of the elliptical shape and the position of the area on the elliptical shape; and generating an action by the computer responsive to the orientation.