虛擬環境中雙眼立體虛擬影像的大小與視差的關係

梁偉哲

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虛擬環境中雙眼立體虛擬影像的大小與視差的關係

The Relationship between Parallax and Size changes in Stereoscopic Virtual Reality

梁偉哲 , Masters　　Advisor：林久翔;呂志維　　

繁體中文

視差；立體視覺；虛擬實境； Stereoscopic ； Parallax ； Virtual Reality

Abstract │ Reference (48) │ Altmetrics

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Abstract
Many studies in the depth judgment of large distance in virtual reality found that the distance was often underestimated. This study explored how the image size was affected by parallax change in the three-dimensional virtual reality environment hoping to understand whether the distance underestimation is caused by image size change.
In order to explore the effect of parallax on the image size, only the parallax level was varied in the experiment. As the parallax changed, the subject reported the size of the virtual sphere by comparing it with a real black circular plate which was moved backward or forward.
When the black circular plate and the virtual sphere are of the same size, the subject would react to stop the plate movement. The location and size of the plate were recorded. With this manipulation, we will be able to know the size that subject perceived at different parallax.
The results show that the size of the image was changed with the change of the parallax.
The change of image size and the image location in the eye-sphere axis is a linear relationship.
In this study, there is another important discovery, that is, the situation in crossed-parallax and uncrossed-parallax is not the same. In the crossed-parallax, the stereo distance and size change is linear, but this did not happen in the uncrossed-parallax. In the uncrossedparallax,the image size change is smaller than the stereo distance change.

Reference ( 48 ) 〈TOP〉

王明敬, 2011, 探討虛擬環境中影響人類深度知覺的主要因子, 中原大學工業與系統工程研究所, 桃園。
連結：
陳瑩山, 林培正, 陳伯易, 張林松, 2011, 3D影像概論與3D立體顯示器對人眼的影響。
連結：
Within Extrapersonal Space?, IEEE Conference on Robotics Automation and
連結：
Mechatronics (RAM), Singapore.
連結：
in Virtual Reality: Distance Estimations in Peri- and Extrapersonal Space, Cyber
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