This paper describes a user interface for video chat that is capable of panning, tilting, and zooming (PTZ) operation using head tracking. The approach is to map a captured 3D position from head tracker to PTZ parameters of a remote camera so that a user can intuitively change the view just as people change their sight by moving their head. The preliminary user study gave encouraging results and clarified the point for further improvement. Keywords HCI, vision-based interaction, head tracking, panning, tilting, zooming, PTZ control, wide field of view video chat ACM Classification Keywords H5.2. User Interfaces: Graphical user interfaces (GUI), H5.2. User Interfaces: Interaction styles (e.g., commands, menus, forms, direct manipulation), I4.9. Applications