Retinal 3D

Jang, Changwon; Bang, Kiseung; Moon, Seokil; Kim, Jong-Hyun; Lee, Seungjae; Lee, Byoungho

doi:10.1145/3130800.3130889

Cited by 177 publications

(31 citation statements)

References 32 publications

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“…Multifocal HMDs where multiple image planes are provided to span the viewer’s accommodation range are a potential solution, but currently require significant computing power (Mercier et al 2017). Alternatively, advancements in augmented reality may soon be able to provide monocular focus cues that induce accommodation in line with eye vergence (Jang et al 2017).…”

Section: Discussionmentioning

confidence: 99%

Virtually the same? How impaired sensory information in virtual reality may disrupt vision for action

2019

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Virtual reality (VR) is a promising tool for expanding the possibilities of psychological experimentation and implementing immersive training applications. Despite a recent surge in interest, there remains an inadequate understanding of how VR impacts basic cognitive processes. Due to the artificial presentation of egocentric distance cues in virtual environments, a number of cues to depth in the optic array are impaired or placed in conflict with each other. Moreover, realistic haptic information is all but absent from current VR systems. The resulting conflicts could impact not only the execution of motor skills in VR but also raise deeper concerns about basic visual processing, and the extent to which virtual objects elicit neural and behavioural responses representative of real objects. In this brief review, we outline how the novel perceptual environment of VR may affect vision for action, by shifting users away from a dorsal mode of control. Fewer binocular cues to depth, conflicting depth information and limited haptic feedback may all impair the specialised, efficient, online control of action characteristic of the dorsal stream. A shift from dorsal to ventral control of action may create a fundamental disparity between virtual and real-world skills that has important consequences for how we understand perception and action in the virtual world.

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Section: Discussionmentioning

confidence: 99%

Virtually the same? How impaired sensory information in virtual reality may disrupt vision for action

2019

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“…However, it has been challenging to provide all of the convergence, accommodation, and motion parallax without sacrificing the display performance. Mostly, the ability of the display system to reproduce physiological cues involves sacrificing the resolution 1,5,6,8,10,14,15,21 , frame rate 2,9,11,12 , viewing window 16,20 , or eye box 13,17,19 . For instance, light field displays with focus cues suffer from a trade-off among the spatial resolution, angular resolution, depth of field 22 , and frame rate.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, light field displays with focus cues suffer from a trade-off among the spatial resolution, angular resolution, depth of field 22 , and frame rate. Several optical systems have been introduced to reconstruct four-dimensional light fields using lens arrays 1 , multi-projections 2,6 , or layered structures 3,5–7 . Although each approach has distinct advantages, they share a common limitation (i.e., trade-offs) that comes from the large amount of information required for the reconstruction of light fields.…”

Section: Introductionmentioning

confidence: 99%

Tomographic near-eye displays

Lee

Yoo

et al. 2019

Nat Commun

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The ultimate 3D displays should provide both psychological and physiological cues for depth recognition. However, it has been challenging to satisfy the essential features without making sacrifices in the resolution, frame rate, and eye box. Here, we present a tomographic near-eye display that supports a wide depth of field, quasi-continuous accommodation, omni-directional motion parallax, preserved resolution, full frame, and moderate field of view within a sufficient eye box. The tomographic display consists of focus-tunable optics, a display panel, and a fast spatially adjustable backlight. The synchronization of the focus-tunable optics and the backlight enables the display panel to express the depth information. We implement a benchtop prototype near-eye display, which is the most promising application of tomographic displays. We conclude with a detailed analysis and thorough discussion of the display's optimal volumetric reconstruction. of tomographic displays.

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“…To expand the eyebox, there are generally two strategies: temporal multiplexing and spatial multiplexing. The temporal-multiplexing-based Maxwellian displays rapidly translate the pupil by using either a LED array 19 or dynamic tilted mirrors 20 . Because the scanning must be performed within the flicker-fusion threshold time, the temporal-multiplexing-based Maxwellian displays face a fundamental trade-off between the image refreshing rate and eye box size.…”

Section: Introductionmentioning

confidence: 99%

Computational holographic Maxwellian near-eye display with an expanded eyebox

Chang

Cui

Park

et al. 2019

Sci Rep

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The Maxwellian near-eye displays have attracted growing interest in various applications. By using a confined pupil, a Maxwellian display presents an all-in-focus image to the viewer where the image formed on the retina is independent of the optical power of the eye. Despite being a promising technique, current Maxwellian near-eye displays suffer from various limitations such as a small eyebox, a bulky setup and a high cost. To overcome these drawbacks, we present a holographic Maxwellian near-eye display based on computational imaging. By encoding a complex wavefront into amplitude-only signals, we can readily display the computed histogram on a widely-accessible device such as a liquid-crystal or digital light processing display, creating an all-in-focus virtual image augmented on the real-world objects. Additionally, to expand the eyebox, we multiplex the hologram with multiple off-axis plane waves, duplicating the pupils into an array. The resultant method features a compact form factor because it requires only one active electronic component, lending credence to its wearable applications.

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Retinal 3D

Cited by 177 publications

References 32 publications

Virtually the same? How impaired sensory information in virtual reality may disrupt vision for action

Virtually the same? How impaired sensory information in virtual reality may disrupt vision for action

Tomographic near-eye displays

Computational holographic Maxwellian near-eye display with an expanded eyebox

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