NEAR EYE LIGHT FIELD DISPLAYS EBOOK

This is "VR Near-Eye Light-Field Displays Demo (Douglas Lanman - NVIDIA Research )" by renderman. We propose a light-field-based approach to near-eye display that allows for thin, lightweight head-mounted displays capable of depicting. We propose near-eye light field displays that enable thin, lightweight head-mounted displays (HMDs) capable of presenting nearly correct convergence, accommodation, binocular disparity, and retinal defocus depth cues. Sharp images are depicted by out-of-focus elements by synthesizing light fields corresponding to.


NEAR EYE LIGHT FIELD DISPLAYS EBOOK

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NEAR EYE LIGHT FIELD DISPLAYS EBOOK


Last but not least, current screens lack the capability to deliver a true volumetric 3-D experience Fig. Human interfaces with existing mobile devices e.

VR Near-Eye Light-Field Displays Demo (Douglas Lanman - NVIDIA Research ) on Vimeo

In an near eye light field displays article on mobility published in the IMID Digest, 4 we presented the argument that to achieve true mobility — the ability to do anything, anywhere, anytime — there needs to be an entirely new class of mobile device.

In order to provide near eye light field displays wide FoV under the mobility constraint, the next-generation human-interface module will logically need to be a wearable display positioned near the eyes of the user.

To support unobstructed and immersive interaction with the surrounding 3-D real world, the near-to-eye NTE display will need to have binocular, optical see-through, and true 3-D visualization capabilities.

In this article, we focus our discussion on the NTE display system.

Near-eye light field displays

A number of attempts have been made in the past decade to build personal NTE light-field-display prototypes e. They all have different tradeoffs based on the design choices, and thus will apply to different classes near eye light field displays applications. Our immediate goal is to discuss the capabilities and limitations of these approaches and near eye light field displays report the implications to future MIG system developers so that they can make a more informed decision when choosing a path for their specific applications.

We believe that one of the most promising approaches to providing all of those key display-related attributes is through a binocular personal single-user light-field NTE see-through display.

NEAR EYE LIGHT FIELD DISPLAYS EBOOK

In the most general sense, a light-field display refers to a device that emits an approximation of the light field of a 3-D scene, which is represented as a high dimensional array of light modalities, including spatial, angular, wavelength, and temporal information of light.

For example, light-field displays based on micro-lens arrays have a reduced spatial sampling frequency in order to allow for the angular near eye light field displays of light.

On the other hand, multi-focal displays based on high-speed digital micromirror devices DMDs maintain high spatial resolution but utilize temporal multiplexing to emit different spatio-angular slices of the light field at separate time instances. Binocular NTE light-field displays with a large field of view can revolutionize how humans interact with the world.

Two examples are illustrated in Fig.

NEAR EYE LIGHT FIELD DISPLAYS EBOOK

In the example on the left, customer-facing professionals, such as employees working in a futuristic bank branch, can use the system to see their waiting customers with detailed profile information overlaid. Information overly associated with customers positioned at different distances from the viewer requires accurate positioning of overlay information, not only with correct 2-D positional alignment but also with correct 3-D depth cues.

In the example on the right, during an ultrasound-guided catheter insertion procedure, a doctor could see ultrasound images superimposed on the patient while inserting the catheter, avoiding the continuous look-away required for near eye light field displays ultrasound displays.

These examples of augmented-reality applications use binocular see-through light-field displays. There are a large number of such potential applications.

However, existing mobile-display technologies such as smartphones, tablets and various NTE displays 24 are inadequate to support these applications.

As shown in Fig. VR displays such as described in Ref.

Near-eye light field displays - Semantic Scholar

AR displays, in contrast, allow the users to see both the virtual world and the real world at the same time. A taxonomy of NTE near eye light field displays includes commercial or near-commercial examples.

AR displays can be further classified into video-overlay displays and optical see-through displays.

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Video-overlay displays block the real-world view optically, but capture it with a miniature camera and present the video view to the user with virtual information overlaid. Optical see-through AR displays can be further classified into monocular and binocular displays.

NEAR EYE LIGHT FIELD DISPLAYS EBOOK