Improving image quality in holographic near-eye display for variable eye pupil positions and sizes

Abstract

In holographic near-eye display, the dynamic changes in the pupil results in the partial and incomplete sampling of the diffracted light wavefront. This paper investigate the influences of pupil position change and size variation based on multiple pupil sub-hologram optimization method. The low reconstruction quality of edge sub-hologram is analyzed and solved by increasing the sampling frequency in the frequency domain. Furthermore, a optimization method based on varying pupil masks is proposed to improve the quality of the observed image when pupil size varies. Simulation and experiment verify that the proposed method effectively improves image quality under varying eye pupil samplings.