Open AccessFoveated computer-generated hologram and its progressive update using triangular mesh scene model for near-eye displays
Author(s) -
Yeon-Gyeong Ju,
JaeHyeung Park
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.023725
Subject(s) - holography , computer science , holographic display , computer generated holography , optics , rendering (computer graphics) , computer vision , image quality , artificial intelligence , computer graphics (images) , image resolution , overlay , polygon mesh , image (mathematics) , physics , programming language
We propose a computer-generated hologram technique that reduces latency caused by hologram calculations in holographic near-to-eye displays. The proposed method applies a foveated rendering technique to a triangular mesh-based computer-generated hologram to reduce the computational load while maintaining the perceived image quality. Progressive update from low resolution to high resolution is achieved with minimal computational load by overlaying a new high-resolution occluding mesh patch on a low-resolution mesh model of the scene. The reduced latency for the first hologram generation with low reconstruction resolution and its smooth update to the high-resolution reconstructions using the proposed method was verified by numerical simulations and optical experiments.