: A novel, non-touch, screen pointing "magic wand" interface is proposed for surgeon's use in an environment requiring simultaneous display of several patients' data over a continuous period of time. The magic wand or passive pointing device does not have any active energy source within it (as opposed to a laser pointer) and thus cannot easily be detected or identified. Thus, modeling and simulation task is carried out by generating high resolution color images of a pointer viewing via two digital cameras with a popular three-dimensional (3D) computer graphics and animation program, Studio 3D Max by Discreet is used for detection. These images are then retrieved for analysis into a Microsoft's Visual C++ program developed based on the theory of image triangulation. The program outputs the precise coordinates of the surgeon's wand in the 3D space along with its projection on a large view screen. The computational results of the pointer projection are compar...