Computer vision systems provide a user a view of a scene whereby an image of the scene may have been augmented with information generated by a computer. Computer vision systems of the present invention include graphical user interfaces which have been discovered to operably interact with geometric constructs of a user environment, objects within a scene, perspective of the scene, image features of a signal which represents the scene, among others. These graphical user interfaces of the invention do not behave as those known because operation of these interfaces depends on properties and features particular to computer vision systems which have position and attitude determining means.