Digital hologram resolution enhancement using a fast reconstruction algorithm

摘要

Digital holography is a technique for digital 3D information recording and reconstruction. The low-resolution of currently available image sensors could undersample hologram images during acquisition and cause reconstruction failure. This paper proposes to use a fast non-iterative multiframe image reconstruction technique for increasing the spatial resolution of digital holograms by combining multiple shifted low-resolution holographic images, which overcomes the resolution problem with relatively low computational load and improves the reconstruction performance. Simulation results are presented to demonstrate the effectiveness of the proposed method.