Pointing system, control device, and control method

A control device picking up light from a light-emitting portion of a pointing device including an operation portion and the light-emitting portion that emits light in accordance with an operation to the operation portion and moves a pointer on a screen based on information on a light spot of the light included in the pickup image, the control device comprising:

• an image pickup portion configured to pick up light from the light-emitting portion at a time the light-emitting portion emits light and output the image including information on the light spot;
• a display portion including the screen and configured to display the pointer on the screen;
• and
• a control portion configured to judge, as well as judge a movement of the light spot based on the information on the light spot in the image and move the pointer on the screen based on the movement of the light spot, whether the light of the light spot is turned off based on the information on the light spot in the image and execute processing related to a click at a time the light of the light spot is turned off.

A control method, comprising:

• picking up light from a light-emitting portion that emits light in accordance with an operation to an operation portion;
• outputting an image including information on a light spot of the light;
• judging a movement of the light spot based on the information on the light spot in the pickup image;
• moving a pointer on a screen in accordance with the movement of the light spot;
• judging turn-off of the light of the light spot based on the information on the light spot in the image;
• and
• executing processing related to a click at a time the light of the light spot is turned off.