Measuring the "Reality" Given by Highly Realistic Surrounding Display Systems: Application of an ARX Model to Observer's Body-sway Data.

Accession number;03A0049489
Title;Measuring the "Reality" Given by Highly Realistic Surrounding Display Systems: Application of an ARX Model to Observer's Body-sway Data.
Author; ONISHI HITOSHI (National Inst. Multimedia Education, JPN) MOCHIZUKI KANAME (National Inst. Multimedia Education, JPN) SUGIMOTO YUJI (National Inst. Multimedia Education, JPN)
Journal Title;IEICE Transactions on Communications (Japanese Edition)
Journal Code:S0622C
ISSN:1344-4697
VOL.J86-B;NO.1;PAGE.45-56(2003)
Figure&Table&Reference;FIG.17, TBL.5, REF.22
Pub. Country;Japan
Language;Japanese
Abstract;As a quantitative evaluation method on psycological impression such as 'live performance feeling' and 'absorption feeling' given by absorption type sound display used for imaginary environment, here was proposed a method to test delicate motions of a body caused by inductive motions on respect to movement of images by using a center-of-gravity fluctuation (body-sway) tester, to make them to indexes of 'live performance feeling' and 'absorption feeling'. On the proposed method, it was enabled by applying ARX models to motion of visual excitement (VE) and observor's body-sway to quantitively analyze effects of the visual excitement on the body-sway. By using the proposed method, body-sway quantities at showing VEs using a large five-faced and a small three-faced displays were measured. As a result, it was shown that when VE made roll motions, increase of horizontal visual angles (addition of right and left screens) increased both right and left components of body-sway quantities, but increase of vertical visual angles (addition of upper and lower screens) did not. And, it was shown by applying the proposed method that not only on average behaviors of groups but only on individual data, quantitative features were made clear.