Conference Paper

Immersive autostereoscopic display for mutual telexistence: TWISTER I (Telexistence Wide-angle Immersive STEReoscope Model I)

Tokyo Univ., Japan
DOI: 10.1109/VR.2001.913767 Conference: IEEE Virtual Reality 2001
Source: IEEE Xplore

ABSTRACT We present an autostereoscopic display named TWISTER I (Telexistence Wide-view-angle Immersive STEReoscope, Model I), which is designed for a face-to-face telecommunication system called "mutual telexistence". By rotating display units that consist of LED arrays and a barrier around a viewer, TWISTER I can display panoramic stereoscopic images that can be observed without the use of special eyewear. This "glassless" feature is essential for applying this apparatus to mutual telexistence because eye contact is important in non-verbal communication.

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    ABSTRACT: This paper reports the design, development, and prelim-inary performance evaluation of TWISTER II (Telexis-tence Wide-angle Immersive STEReoscope model II), an immersive full-color autostereoscopic display. The project is designed for the purpose of a face-to-face telecommuni-cation system called "mutual telexistence." The basic idea of mutual telexistence is the projection of human beings into a mutual virtual environment in real time. Each human user resides inside a booth with a spin-ning circular mechanism, which plays the role of both the display and the input device. With plural booths, each user can see the three dimensional figures of other users working in real time in the mutual virtual environment. We implemented the display partially, and confirmed its performance as a stereoscopic display of full-color still im-ages. It has been found experimentally to have enough tonal resolution and brightness. We studied the display gamma characteristics, as well as the display stability: to what extent a human observer can fuse an image with ro-tating LED arrays. We also focused on the performance of the "moving parallax barrier," which basically proved to contribute to stereopsis.
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    ABSTRACT: We propose an expressive breathing method for a robot in accordance with its utterances. The synchronized expression is expected as a new physical modality to become like a living presence. Especially when the human-robot distance is near in intimate communications, anthropomorphized presences should naturally imitate activities of living beings, such as breathing. A stuffed-toy robot contains a speaker and a fan motor in its head to make simultaneous expressions of breathing and vocal sounds. The strength of the breath is determined by the total volume and power in the high frequency band.
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    ABSTRACT: In this paper we report the development of TWISTER [3][8] (Telexistence Wide-angle Immersive STEReoscope), which realize the concept of "Mutual Telexistence". In contrast to conventional telexistence, where people in remote places can be appeared with a realistic sense of presence, in mutual telexistence, the figure of the observer him/herself can be displayed to remote users and all of the users can communicate as if they were in the same three-dimensional space. TWISTER is a cylindrical booth designed for mutual telexistence. It enables the user to view immersive and autostereoscopic images, and at the same time, it captures and reconstructs the image of the user inside with cameras positioned in-between the display unit. In previous reports on the development of TWISTER, we have introduced the development of display part [1]. In this report we discuss some methods to capture images of the user and render them in real time.

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May 23, 2014

Naoko Ogawa