Multiview Reconstruction Using Phase Retrieval of Light Field Signals

Abstract

Light field rendering is an effective multi-view reconstruction technology. The current multiview reconstruction methods still has the problem of low view synthesis quality in complex scenes, such as occlusion and non Lambertian surfaces. In this article, we consider undistorted multiview reconstruction and develop a phase retrieval method for light field (PRLF) signals to improve the rendering quality. Our approach utilizes the phase spectrum in both the time domain and frequency domain of the discrete light field because the phase of the light field carries more scene information. The phase corrections are "light field truncation" in the time domain and "phase replacement" in the frequency domain. The iterative algorithm used provides high-quality estimated results for the relative phase of the light field. By the estimated phase results, we derive a multiview reconstruction method to improve the rendering quality. Finally, to verify the claimed performance, we also compare the PRLF with the most advanced light field reconstruction algorithms. The experimental results show that the proposed PRLF outperforms other known reconstruction schemes.INDEX TERMS Light field rendering, phase retrieval, novel view reconstruction, rendering quality I. INTRODUCTION