Perspective Sensory Measurement Method Using Multi Viewpoint 3D Glass-Free Display

Yoshihito Kikuchi; Takahiro Yamanoi

doi:10.20965/ijat.2011.p0218

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IJAT Vol.5 No.2 pp. 218-222

doi: 10.20965/ijat.2011.p0218

(2011)

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Perspective Sensory Measurement Method Using Multi Viewpoint 3D Glass-Free Display

Yoshihito Kikuchi and Takahiro Yamanoi

Hokkai-Gakuen University, South 26, West 11, Chuo-ku, Sapporo 064-0926, Japan

Received:

November 22, 2010

Accepted:

December 22, 2010

Published:

March 5, 2011

Keywords:

Alzheimer disease, 3D glass-free display, sensory perspective measurement

Abstract

Recent investigations demonstrate that perspective sensory loss correlates with early Alzheimer Disease (AD).Our previous studymeasured this through stereopsis. Based on cross-eyed stereography, a computer generates images at a given distance from a monitor. Sensory perspective is measured as the difference between a subject’s sense and a given distance. Experiments conducted for non-AD and AD subjects showed different, statistically significant results. The measurement we propose for sensory perspective without the use of 3D glasses eliminates the need for LCD shutter glasses and provides much more natural viewing. We measured sensory perspective within modeling space and 3 virtual objects - 2 fixed at a given location horizontally and 1 centered between the other 2 objects and moved from infinity to the nearest point. The subject moves the center object to line it up with the 2 fixed objects. We report results of preliminary experiments on measuring sensory perspective. Subjects included non-AD and AD cases.

Cite this article as:

Y. Kikuchi and T. Yamanoi, “Perspective Sensory Measurement Method Using Multi Viewpoint 3D Glass-Free Display,” Int. J. Automation Technol., Vol.5 No.2, pp. 218-222, 2011.

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References

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This article is published under a Creative Commons Attribution-NoDerivatives 4.0 Internationa License.

[1] [1] S. Ishii, F. Shishido, M. Miyajima, K. Sakuma, T. Shigihara, T. Tameta, M. Miyazaki, and H. Kuroda, “Comparison of Alzheimer’s disease with vascular dementia and non-dementia using specific voxel-based Z score maps,” Annals of Nuclear Medicine, Vol.23, No.1, pp. 25-31,2009.

[2] [2] A. Brugnolo, S. Morbelli, B. Dessi, N. Girtler, D. Mazzei, F. Famà, P. Barbieri, G. Cabassi, P. M. Koulibaly, G. Sambuceti, G. Rodriguez, and F. Nobili, “The Reversed Clock Drawing Test Phenomenon in Alzheimer’s Disease: A Perfusion SPECT Study,” Dement Geriatr Cogn Disord, Vol.29, No.1, 2010.

[3] [3] M. Goto, S. Aoki, O. Abe, T. Masumoto, Y. Watanabe, Y. Satake, K. Nishida, K. Ino, K. Yano, K. Iida, K. Mima, and K. Ohtomo, “Utility of Axial Images in Early Alzheimer Disease Diagnosis Support System (VSRAD),” Japanese J. of Radiological Technology, Vol.62, No.9, pp. 1339-1344, 2006.

[4] [4] M. Rizzo and M. Nawrot, “Perception of movement and shape in Alzheimer disease,” Brain, Vol.121, No.12, pp. 2259-2270, 1998.

[5] [5] Y. Kawakami, X. Shi, Y. Guo, S. Fukushima, S. Murakami, Y. Kawase, and I. Fukumoto, “Development of the diagnostic system of Alzheimer-type dementia using eye movement,” Technical report of the Technological University of Nagaoka, 24, pp. 63-67, 2002.

[6] [6] H. Toyoshima, T. Yamanoi, S. Murakami, N. Ikeda, and H. Miyasawa, “Relationship between visual recognition (depth) and dementia,” Bulletin of the Faculty of Engineering, Hokkai-Gakuen University, Vol.30, pp. 107-113, 2003.