Real-time color holographic video reconstruction using multiple-graphics processing unit cluster acceleration and three spatial light modulators
We demonstrate real-time three-dimensional (3D) color video using color electroholographic system with a cluster of multiple-graphics processing units (multi-GPU) and three spatial light modulators (SLMs) corresponding to respective red, green, and blue (RGB)-colored reconstructing lights. The multi-GPU cluster has a computer-generated hologram (CGH) display node containing a GPU, for displaying calculated CGHs on SLMs, and four CGH calculation nodes using 12 GPUs. The GPUs in the CGH calculation node generate CGHs corresponding to RGB reconstructing lights in a 3D color video using pipeline processing. Real-time color electroholography was realized for a 3D color object comprising approximately 21,000 points per color.
National Astronomical Observatory of Japan
Chiba Daigaku Daigakuin Kogaku Kenkyuka Kogakubu
Ikawa Shohei,Takada Naoki,Araki Hiromitsu,Niwase Hiroaki,Sannomiya Hiromi,Nakayama Hirotaka,Oikawa Minoru,Mori Yuichiro,Kakue Takashi,Shimobaba Tomoyoshi,Ito Tomoyoshi. Real-time color holographic video reconstruction using multiple-graphics processing unit cluster acceleration and three spatial light modulators[J].Chinese Optics Letters,2020,18(1):01.