HUDNet: A dynamic calibration method for automotive augmented reality head-up-displays

Xu, Nan; Yu, Fangzheng; Xu, Jiao; Jin, Dajiang; Feng, Huajun; Xu, Zhihai; Li, Qi; Chen, Yueting

doi:10.1016/j.displa.2023.102453

Cited by 4 publications

(1 citation statement)

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“…Augmented reality (AR) technology has recently been widely utilized in a variety of fields, including industry, military, healthcare, education, and entertainment [1][2][3][4]. One of the most popular applications of this technology is head-up displays (HUDs), which offer a realistic and immersive experience that combines three-dimensional (3D) virtual contents with the real scenes [5][6][7]. However, AR-HUDs encounter several common challenges when satisfying the demands of human vision, including the field of view (FOV), eye-box, form factor, and accommodation cues.…”

Section: Introductionmentioning

confidence: 99%

Enlarged Eye-Box Accommodation-Capable Augmented Reality with Hologram Replicas

Moon,

Hahn

2024

Sensors

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Augmented reality (AR) technology has been widely applied across a variety of fields, with head-up displays (HUDs) being one of its prominent uses, offering immersive three-dimensional (3D) experiences and interaction with digital content and the real world. AR-HUDs face challenges such as limited field of view (FOV), small eye-box, bulky form factor, and absence of accommodation cue, often compromising trade-offs between these factors. Recently, optical waveguide based on pupil replication process has attracted increasing attention as an optical element for its compact form factor and exit-pupil expansion. Despite these advantages, current waveguide displays struggle to integrate visual information with real scenes because they do not produce accommodation-capable virtual content. In this paper, we introduce a lensless accommodation-capable holographic system based on a waveguide. Our system aims to expand the eye-box at the optimal viewing distance that provides the maximum FOV. We devised a formalized CGH algorithm based on bold assumption and two constraints and successfully performed numerical observation simulation. In optical experiments, accommodation-capable images with a maximum horizontal FOV of 7.0 degrees were successfully observed within an expanded eye-box of 9.18 mm at an optimal observation distance of 112 mm.

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