Work

Real-time vision-extended holographic near-eye display system based on perceptual range-adaptive visualization architecture

Year: 2025

Type: article

Abstract: We propose an intelligent real-time holographic near-eye display (NED) system based on a perceptual range-adaptive visualization (PRaV) architecture, which incorporates a dynamic ocular-actuated controlling (OAC) module for intuitive, hands-free interaction. The PRaV architecture handles the entire operation of the system, including real-time acquisition and holographic rendering of real-world scenes, either as full-field visualizations or selectively highlighted regions-of-interest, based on user eye commands. These eye-dependent commands, interpreted by the OAC module, dynamically trigger transitions between full-field and highlighted holographic visualizations, thereby extending perceptual capabilities beyond natural human vision. To ensure seamless high-speed computer-generated hologram (CGH) generation within the display pipeline, the system employs an accelerated random-phase angular spectrum method (ASM) using a parallel normalization technique. The core functionality of the proposed system is the unified integration of hardware and software components to deliver continuous and immersive user experience with the PRaV architecture. Experimental results validate that the proposed system can represent a significant advancement in real-time range-adaptive holographic visualization, laying the groundwork for future development of hands-free head-mounted display applications.

Source: Optics & Laser Technology

DOI: 10.1016/j.optlastec.2025.114145