In Computer-Generated Hologram (CGH), random phases are often added to diffuse the object light. However, due to this effect, speckle noise, which is a deterioration in image quality, occurs. In this study, we generated a hologram that suppresses the influence of speckle by calculation so that the light wave converges to the viewpoint. The viewing zone is limited by this method, it can be applied to Head-Mounted Display (HMD) type CGH or Eye tracking type electronic holography. The effectiveness of the proposed method was confirmed by simulation and actual optical reproduction.
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