Abstract
Interference fringe type Computer-Generated Holography, which is one of the technologies of Computer-Generated Holography, is a hologram that can record and reproduce information by interference fringes using amplitude and phase. This technique uses random noise to obtain a high-definition reconstructed image equivalent to the input image. In the Kinoform using only the phase of the conventional technique, the amplitude is constant, so the deterioration of the reconstructed image is larger than that of the former due to the influence of the quantization error. In this study, we realized digital holography that does not require an optical system by multiplexing using the lens term of the interference fringe type CGH and separating the reconstructed image by simulating the lens term. As a multiplexing technique, a method based on hologram information redundancy is well known. However, most of the methods use an optical system for separation, and there is no evidence of the feasibility of a holographic memory using this technology. Therefore, we confirm the problems of digital holography by conducting basic experiments on digital reconstructed image of holography. We also propose to improve the image quality of the reconstructed image by removing noise using image processing.
