Abstract
This paper presents a support system which allows the visually challenged to play flying disc. Until recently it has been difficult for the visually challenged to play flying disc with sighted players. However, with image processing technology it has become possible. Our system consists of a DV camera and a computer. The system can detect the disc flying in the air, and then specifies the three dimensional coordinates of the disc. It judges whether the disc will pass through the goal. Further the system also lets the player know the course of the disc by means of sound. That is, the tone allows the player to recognize whether the disc is moving in the direction of right or left as the sound pitch distinguishes the height of the disc in flight. We demonstrated this system at a school for the visually challenged. Using our system, they could play flying disc after only one practice session.