Virtual viewpoints reconstruction via Fourier slice transformation

Abstract

We propose a new method of calculating the arbitrary viewpoints for auto‐stereoscopic display. The three‐dimensional (3D) object is first virtually reconstructed in 3D spaces by mapping each pixel with a depth according to the depth mapping. We then calculate the Fourier spectrum of the 3D object by the fast Fourier transformation. The arbitrary viewpoints are reconstructed by “slicing” the 3D Fourier spectrum. To repair “black hole” artifacts, the regions in the background are calculated by advanced boundary in‐painting. Experimental results show the effectiveness and accuracy of the proposed algorithm to calculate viewpoints with arbitrary viewing angles. A comparison is also presented, which indicates that the proposed algorithm is more accurate than conventional method, and the advanced boundary in‐painting can save three quarters of time than the conventional in‐painting method.

14.1: Near‐eye light field display based on biological stereoscopic vision

“…Researchers has tried to imitate this process and evaluate the 3D visual perception for near-eye light field displays (NE-LFD). For example, 3D scene are rendered by a pair of twodimensional (2D) perspective images [7] with binocular disparities or by three-dimensional (3D) stereo images [8] with correct or nearly correct focus cues. The perceived images on retina are reconstructed by gathered those viewpoints and fused in the brain.…”

35.3: Near‐eye light field display based on polarization volume grating stack (PVGs)

“…Researchers has tried to imitate this process and evaluate the 3D visual perception for near-eye light field displays (NE-LFD). For example, 3D scene are rendered by a pair of twodimensional (2D) perspective images [1] with binocular disparities or by three-dimensional (3D) stereo images [2] with correct or nearly correct focus cues. The perceived images on retina are reconstructed by gathered those viewpoints and fused in the brain.…”