Abstract
This paper described a person's head detection using the separability filter. Authors have succeeded in making a high sound area only in a local area at 50cm diameter level by using a speaker array. This is called a sound spot. In this research, this sound spot around a head is tried to form by using a vision. The person's head is detected by using an image obtained from a camera attached to the position higher than the person's head, such as a ceiling. The person's head is a circle when it is seen from over head. Therefore the head position is detected from an image by using the separability filter. And sound spot is formed to there.
