An approximation for fast digital hologram generation is implemented on a central processing unit (CPU), a graphics processing unit (GPU), and a multi-GPU computational platform. The computational performance of the method on each platform is measured and compared. The computational speed on the GPU platform is much faster than on a CPU, and the algorithm could be further accelerated on a multi-GPU platform. In addition, the accuracy of the algorithm for single- and double-precision arithmetic is evaluated. The quality of the reconstruction from the algorithm using single-precision arithmetic is comparable with the quality from the double-precision arithmetic, and thus the implementation using single-precision arithmetic on a multi-GPU platform can be used for holographic video displays.
© 2009 Optical Society of America
Original Manuscript: July 6, 2009
Revised Manuscript: September 26, 2009
Manuscript Accepted: September 28, 2009
Published: October 12, 2009
Hoonjong Kang, Fahri Yaraş, and Levent Onural, "Graphics processing unit accelerated computation of digital holograms," Appl. Opt. 48, H137-H143 (2009)