A Study on Interference Patterns in Digital Holography

Abstract

Electronic holography has been invented to process the holographic information (interference pattern) with CCD sensor, computer, and spatial light modulator. The digitized interference pattern is stored after the original/analog ones are sampled and quantized. Upon the massive amount of the digitized holographic data, the efficient storage and transmission become more significant and difficult. For the purpose of transmission and storage, it is desirable to reduce the data amount while preserving the most fidelity in original holographic information. However, the interference patterns are very different from the general images we have known. In this paper, we propose a novel method to improve the light efficiency of electronic holography at first. Then, we examine the digitized interference patterns. Finally, we discuss the conventional image coding techniques and try to figure out some methods that might be able to efficiently encode the digitized interference patterns.