3D shape evaluation analysis by synthesis in virtual space for collaboration

It is indicated that there is high possibility Of disagreement between the 3D shape evaluation in virtual space and that in real space. In our previous paper, the 3D shape evaluation support system in virtual space is proposed, Because the system integrates the visual and gazing line-motion information in virtual space and tactile information in real space, the each information can be controlled for analivis of 3D shape evaluation in virtlial space by synthesis. On the other hand, there are cases in which the designers in the long distance evaluate the same 3D shapes through the Internet. In this case, the time delay, of information must be occurred. From the point of view, the influence of visual information with time delay, on the 3D shape evaluation in virtual space is investigated by using the proposed system. The sensory evaluation by, paired comparison Of 3D shapes and the questionnaire are carried out in virtual space with and w/o time delay, and in real space. The result shows that the visual information with time delay, affects the shape evaluation in virtual space, especially the evaluation of the details of shapes.