Real-time electroholography using a single spatial light modulator and a cluster of graphics-processing units connected by a gigabit Ethernet network  

作　　者：Hiromi Sannomiya Naoki Takada Tomoya Sakaguchi Hirotaka Nakayama Minoru Oikawa Yuichiro Mori Takashi Kakue Tomoyoshi Shimobaba Tomoyoshi Ito 

机构地区：[1]Graduate School of Integrated Arts and Sciences,Kochi University,Kochi,Kochi 780-8520,Japan [2]Research and Education Faculty,Kochi University,Kochi,Kochi 780-8520,Japan [3]National Astronomical Observatory of Japan,Mitaka,Tokyo 181-8588,Japan [4]Graduate School of Engineering,Chiba University,Chiba,Chiba 263-8522,Japan

出　　处：《Chinese Optics Letters》2020年第2期23-27,共5页中国光学快报（英文版）

基　　金：supported by the Japan Society for the Promotion of Science(JSPS)KAKENHI(Nos.18K11399 and 19H01097);the Telecommunications Advancement Foundation.

摘　　要：Systems containing multiple graphics-processing-unit(GPU)clusters are difficult to use for real-time electroholography when using only a single spatial light modulator because the transfer of the computer-generated hologram data between the GPUs is bottlenecked.To overcome this bottleneck,we propose a rapid GPU packing scheme that significantly reduces the volume of the required data transfer.The proposed method uses a multi-GPU cluster system connected with a cost-effective gigabit Ethernet network.In tests,we achieved real-time electroholography of a three-dimensional(3D)video presenting a point-cloud 3D object made up of approximately 200,000 points.

关 键 词：real-time electroholography multiple-graphics processing unit cluster graphics processing unit gigabit Ethernet 

分 类 号：TP332[自动化与计算机技术—计算机系统结构] TP393.11[自动化与计算机技术—计算机科学与技术] TN761[电子电信—电路与系统]