Operational Systems of Stereoscopic Cutting 3d Virtual Objects with Reactive Feeling

A stereoscopic cutting of stereoscopic display of 3D virtual objects in a real space using a human binocular parallax is discussed. For the cutting of stereoscopic image objects characterized by assumed physical properties, a software knife and two kinds of hardware edged-tools are developed by which the objects can be directly cut into without any particular constraint in their operation. Some essential techniques are then described for the realization of a force display system on manipulation of these developed cutting devices which is a useful human interface with direct feeling on fingers and visual recognition of hand movement in operation including spatial and structural understandings of objects. Finally, two kinds of imagecutting force display systems are developed which can provide an operator well attendance to the realistic operation of virtual objects with a smooth reactive feeling dependent on different cutting mechanisms and their given physical properties.