&lt;title&gt;Autostereoscopic display with high brightness and power efficiency&lt;/title&gt;

We present Portallax, a clip-on technology to retrofit mobile devices with 3D display capabilities. Available technologies (e.g. Nintendo 3DS or LG Optimus) and clipon solutions (e.g. 3DeeSlide and Grilli3D) force users to have a fixed head and device positions. This is contradictory to the nature of a mobile scenario, and limits the usage of interaction techniques such as tilting the device to control a game. Portallax uses an actuated parallax barrier and face tracking to realign the barrier's position to the user's position. This allows us to provide stereo, motion parallax and perspective correction cues in 60 degrees in front of the device. Our optimized design of the barrier minimizes colour distortion, maximizes resolution and produces bigger view-zones, which support ~81% of adults' interpupillary distances and allow eye tracking implemented with the front camera. We present a reference implementation, evaluate its key features and provide example applications illustrating the potential of Portallax.

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“…lobes in which the two views repeat 5,6 as shown in Figure 1. At the other end of the spectrum are the multi-view displays with a single lobe containing a large number of views.…”

Section: Left Eye Viewing Zonesmentioning

confidence: 99%

On the number of viewing zones required for head-tracked autostereoscopic display

Dodgson¹

2021

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A head-tracked display could be made from a two-view autostereoscopic display where head-tracking allows the display to swap the two views when the eyes move from viewing zone to viewing zone. Variations in human interpupillary distance mean that this basic two-view version will not work well for the significant minority of the population who have interpupillary distance significantly different from the average. Woodgate et al. proposed, in 1997, that a three-view system would work well. Analysis of an ideal version of their proposal shows that it does work well for the vast majority of the population. However, most multi-view, multi-lobe autostereoscopic displays have drawbacks which mean that, in practice, such a system would be unacceptable because of the inter-view dark zones generated by the inter-pixel dark zones on the underlying display technology. Variations of such displays have been developed which remove the inter-view dark zones by allowing adjacent views to overlap with one another: the views appear to smoothly blend from one to the next at the expense of a little blurring. Such displays need at least five viewing zones to accommodate the majority of the adult population with head-tracking and at least six viewing zones to accommodate everyone. © 2006 SPIE-IS&T.

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“…lobes in which the two views repeat 5,6 as shown in Figure 1. At the other end of the spectrum are the multi-view displays with a single lobe containing a large number of views.…”

Section: Types Of Autostereoscopic Displaymentioning

confidence: 99%

On the number of viewing zones required for head-tracked autostereoscopic display

Dodgson¹

2020

Preprint

0

View full text Add to dashboard Cite

A head-tracked display could be made from a two-view autostereoscopic display where head-tracking allows the display to swap the two views when the eyes move from viewing zone to viewing zone. Variations in human interpupillary distance mean that this basic two-view version will not work well for the significant minority of the population who have interpupillary distance significantly different from the average. Woodgate et al. proposed, in 1997, that a three-view system would work well. Analysis of an ideal version of their proposal shows that it does work well for the vast majority of the population. However, most multi-view, multi-lobe autostereoscopic displays have drawbacks which mean that, in practice, such a system would be unacceptable because of the inter-view dark zones generated by the inter-pixel dark zones on the underlying display technology. Variations of such displays have been developed which remove the inter-view dark zones by allowing adjacent views to overlap with one another: the views appear to smoothly blend from one to the next at the expense of a little blurring. Such displays need at least five viewing zones to accommodate the majority of the adult population with head-tracking and at least six viewing zones to accommodate everyone. © 2006 SPIE-IS&T.

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<title>Autostereoscopic display with high brightness and power efficiency</title>

Cited by 14 publications

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Portallax

Portallax

On the number of viewing zones required for head-tracked autostereoscopic display

On the number of viewing zones required for head-tracked autostereoscopic display

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