Optimized computer-generated hologram for enhancing depth cue based on complex amplitude modulation

In this Letter, we introduce a computer-generated hologram (CGH) optimization method to enhance the depth cue based on complex amplitude modulation (CAM). An iterative algo-rithm is designed to generate the optimized random phase (ORAP) according to the size of the target image and the bandwidth limitation condition. The ORAP with limited bandwidth is used as the initial phase of the target image and the hologram is encoded based on the analytical formula. Our proposal can maintain the advantages of CAM and achieve holographic three-dimensional (3D) display with an enhanced depth cue. It is expected that the proposed method could be widely used in holographic field in the future.(c) 2022 Optica Publishing Group

Automated summary

This Letter introduces a computer-generated hologram optimization method based on complex amplitude modulation (CAM) to enhance depth cues. By optimizing the random phase and bandwidth limitation, holographic three-dimensional (3D) display with enhanced depth cues is achieved.