Wavelet Image Enhancement Applied to Holographic Data Storage

摘要

There are three modes of operation in a holographic data-storage system: recording, reconstruction and detection. Storage capacity is limited by diffraction, optical systems, interpage cross-talk, storage density and material quality. Wavelet image processing has the potential for reducing noise from optical scattering, lens aberation and crosstalk, as well as being potentially 3-D. Wavelet image processing will be applied to holographic data storage to enhance 2-D image resolution and potentially increase 3-D storage capacity. This effort will apply wavelet image processing to holographic data storage at two levels (a) beam interaction in the photorefractive crystal; and (b) wavelet analysis and synthesis applied to holographic recording, reconstruction and detection.