Fourier focusing in integral imaging with optimum visualization pixels

Abstract

In this paper, we propose Fourier Volumetric Computational Reconstruction (FVCR), which is a new computational integral imaging reconstruction (CIIR) algorithm. It handles physical pixel overlapping by refocusing in the Fourier domain. Thus, the longitudinal resolution of the reconstructed 3D image is the same as optical reconstruction. It also considers the lateral resolution limit of integral imaging and minimizes the computational load in CIIR. To verify the improvements in both lateral and longitudinal resolution of the reconstructed 3D image, in this paper, we implemented optical experiments. To the best of our knowledge, this is the first report of the efficient CIIR algorithm that considers the longitudinal and lateral resolution limits of integral imaging.