A method for preventing movement in a telepresence system, includes a
plurality of cameras. Each camera has a respective field of vision for
viewing one or more users. The fields of vision each have lateral
boundaries. The system also includes a plurality of restrictive elements.
Each restrictive element is positioned along a respective lateral
boundary of a field of vision of the fields of vision of the plurality of
cameras such that viewed users each positioned within a field of vision
of the plurality of cameras are restricted by the plurality of
restrictive elements from moving outside of the field of vision in which
each viewed user is positioned.