Full-color holographic system featuring three-dimensional salient object detection based on a U²-RAS network

In this study, a 3D salient object detection model is built at the acquisition step in the full-color holographic system, and a deep network architecture U ²-reverse attention and residual learning (RAS) algorithm is proposed for salient object detection to obtain more efficient and accurate point cloud information. In addition, we also use the point cloud gridding method to improve the hologram generation speed. Compared with the traditional region of interest method, RAS algorithm, and U ²-Net algorithm, the computational complexity is significantly reduced. Finally, the feasibility of this method is proved by experiments.