Grid-based computer-generated holograms synthesizing for holographic three-dimensional display

摘要

To reduce the computing time of composite computer-generated holograms(CGHs)generation based upon the angular projection algorithm for holographic three-dimensional(3D)display,a grid-based holographic display(GHD)scheme was designed.The grid computing technology was applied to numerically process the different angular projections of an object in distributed-parallel manner to create the corresponding CGHs.The whole treatment of a projection was regarded as a job executed on the grid node machine.The number of jobs which were submitted to grid nodes,therefore,was equal to that of the projections of the object.A Condor-based grid testbed was constructed to verify the feasibility of the GHD scheme,and a graphical user interface(GUI)program and several service modules were developed for it.A 3D terrain model as an example was processed on the testbed.The result showed that the scheme was feasible and able to improve the execution efficiency greatly.