Visibility control using revolving polarizer

Sakurai, Satoshi; Kitamura, Yoshihisa; Subramanian, Sriram; Kishino, Fumio

doi:10.1109/tabletop.2008.4660200

Cited by 3 publications

(1 citation statement)

References 26 publications

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“…These light patterns can be simulated through a variety of technologies, including head-mounted projections (e.g., polarized glasses that filter the adequate image for each person/eye, or screens that provide a separate image to each eyeball [Kiyokawa et al 2003, Höllerer et al 1999), clever filtering techniques on the source content (e.g., spatial occlusion [Kitamura et al 2001], the use of polarization [Sakurai et al 2008, Karnik et al 2012, directionally heterogeneous diffusion [Matsushita et al 2004]), or a combination of several of these techniques [Kulik et al 2011]. A recent survey of stereoscopic and 3D display techniques is provided by Geng [2013].…”

Section: Collaborative and Volumetric Display Systemsmentioning

confidence: 99%

The Effects of Changing Projection Geometry on Perception of 3D Objects on and Around Tabletops

Nacenta

Hancock

Gutwin

et al. 2016

ACM Trans. Comput.-Hum. Interact.

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________________________________________________________________________Displaying 3D objects on horizontal displays can cause problems in the way that the virtual scene is presented on the 2D surface; inappropriate choices in how 3D is represented can lead to distorted images and incorrect object interpretations. We present four experiments that test 3D perception. We varied projection geometry in three ways: type of projection (perspective/parallel), separation between the observer's point of view and the projection's center (discrepancy), and presence of motion parallax (with/without parallax). Projection geometry had strong effects different for each task. Reducing discrepancy is desirable for orientation judgments, but not for object recognition or internal angle judgments. Using a fixed center of projection above the table reduces error and improves accuracy in most tasks. The results have far-reaching implications for the design of 3D views on tables, in particular for multi-user applications where projections that appear correct for one person will not be perceived correctly by another.

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