Synthesis method from low-coherence digital holograms for improvement of image quality in holographic display.

Abstract

In holographic displays, it is undesirable to observe the speckle noises with the reconstructed images. A method for improvement of reconstructed image quality by synthesizing low-coherence digital holograms is proposed. It is possible to obtain speckleless reconstruction of holograms due to low-coherence digital holography. An image sensor records low-coherence digital holograms, and the holograms are synthesized by computational calculation. Two approaches, the threshold-processing and the picking-a-peak methods, are proposed in order to reduce random noise of low-coherence digital holograms. The reconstructed image quality by the proposed methods is compared with the case of high-coherence digital holography. Quantitative evaluation is given to confirm the proposed methods. In addition, the visual evaluation by 15 people is also shown.

DOI: 10.1364/AO.52.003838

Cite this paper

@article{Mori2013SynthesisMF, title={Synthesis method from low-coherence digital holograms for improvement of image quality in holographic display.}, author={Yutaka Mori and Takanori Nomura}, journal={Applied optics}, year={2013}, volume={52 16}, pages={3838-44} }