Name
Title | ||
|---|---|---|
Fixed-Point Accuracy Analysis of 2D FFT for the Creation of Computer Generated Holograms |
Abstract | ||
|---|---|---|
Computer Generated Holograms (CGHs) are fundamental to the creation of holographic display and are responsible for carrying the phase or amplitude information of a particular optical field. The standard approaches for CGH generation on personal computers all involve multiple forward and inverse 2-dimensional fast Fourier Transforms (2D FFTs). This common method is not fast enough for a real-time application. Producing CGHs via configurable hardware may reduce the computational burden. To reduce overhead, fixed-point arithmetic is usually implemented; however, this sacrifices the precision of the algorithm. Care needs to be taken when applying fixed-point operations.In this paper, we present a radix-2 error propagation model to analyses the 2D FFT based on three different rounding methods and we also show the simulation results on selection of appropriate rounding methods. |
Year | DOI | Venue |
|---|---|---|
2019 | 10.1109/GlobalSIP45357.2019.8969134 | 2019 IEEE Global Conference on Signal and Information Processing (GlobalSIP) |
Keywords | Field | DocType |
Field programmable gate array (FPGA),Fast Fourier transform (FFT),Radix-2,Computer-generated hologram (CGH) | Holography,Inverse,Propagation of uncertainty,Computer science,Algorithm,Rounding,Fast Fourier transform,Fixed point,Holographic display,Optical field | Conference |
ISSN | ISBN | Citations |
2376-4066 | 978-1-7281-2724-8 | 0 |
PageRank | References | Authors |
0.34 | 1 | 5 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Daoming Dong | 1 | 0 | 0.68 |
| Youchao Wang | 2 | 0 | 0.68 |
| Peter J. Christopher | 3 | 0 | 0.68 |
| Andrew Kadis | 4 | 0 | 0.68 |
| T. D. Wilkinson | 5 | 24 | 4.38 |