In sum, the performance of movements during tool use may vary with the visual magnification of the task on screen or the motion scaling of the effector on screen.
More recent examples include the 3D gesture-based user interface used by Tom Cruise's character in Minority Report (2002), which is found today in most touch screens and the motion sensing capability of Microsoft's Kinect.
He warns, for instance, against the temptation for screenwriters of overusing the physical mobility afforded by the camera: "it is wrong," Hitchcock writes, "to suppose, as is all too commonly the case, that the screen of the motion picture lies in the fact that the camera can roam abroad, can go out of the room, for example, to show a taxi arriving.
Which didn't quite make sense until Mr. Fierlinger sat down at what he calls his light table: as his digital "pen" moved across the horizontal surface, a line drawing appeared on the vertical screen, creating the "motion" of two existing images that, when run at 24 frames per second, will be cinema.
Murderers, braggarts, cowards, bullies men of cruelty and violence were among the portraits etched by the fiery actor on the screen, and the motion picture public loved it.
The gadget's interface combines a touch-sensitive screen with the motion-sensing attributes of the Nintendo Wii.
The results show that the traces of the new designed vibrating screen follow the ideal screening motion.
But for now, the sheer delight of moving your arms and seeing an on-screen character mimic the motion is enough.
This year, the company showed off futuristic computer display technologies that allow a viewer to peer around objects displayed on the screen, by tracking the motion of the viewer's head.
The Bug system is rather expensive: $349 for the base computer, $119 for the touch screen, $59 for the motion sensor, $79 for a two-megapixel camera module.
Model 2 was screened during motion 5 times and the L2-S1 levels of the volunteers twice.
