| A review is presented of the well documented difficulties in performing manual control tasks under visual-motor mismatch. In that light, a new display concept is proposed, where additional visual information about a telemanipulated instrument's direction of instantaneous movement is graphically superimposed at the instrument tip's location in a camera image. An experimental platform is developed to evaluate the new display concept in a pointing task, under various camera misalignments and path constraints. Both global and dynamic measures are used to evaluate recorded movement trajectories, including a novel analysis of distributions of bivariate time and space domain parameters. The reported performance decrement is consistent with the literature; however, the global and dynamic measures analyses suggest that the proposed display concept offered no significant improvement over the case of no additional visual information in the experiment reported. |
