Abstract
A situation video image should convey sufficient situation information, while protecting specific person's privacy information in the scene. This paper proposes a system which automatically identifies a person by face recognition, tracks him or her, and displays the image of the person in modified form such as silhouette with or without name, or only name in characters that is equivalent to an invisible person instead of the original video image. In several applications considered, the silhouette display with person's name seems to be most appropriate for the purpose.