Three-dimensional display of computer-generated hologram based on spatial light modulator

In order to solve the problems in current computer-generated hologram, such as huge computational cost, slow computational speed and disturbance from conjugate image, a new computer-generating holographic stereogram method was proposed. In this method, a series of perspective view images were captured by moving camera according to the principle of binocular stereo-vision in human visual system. The kinoform of different view angles was computed to synthesize holographic stereogram of three-dimensional object. The initial phase was set up and the feedback factor was added to iterate Fourier transform algorithm (IFTA) for improving the efficiency of iterative calculation. The holographic stereogram was loaded to liquid spatial light modulator. The experimental result shows the method we proposed can eliminate the noises from conjugate image and improve the iterative calculation efficiency over 30%, the structure similarity (SSIM) between reconstruction image and target image is above 0.85, which means the results have comfortable three-dimensional vision effect.