.png){kind=icon}
返回
Approximated Wavefront Composition for Computer-Generated Holograms Based on Tiny Logic Operations
.png){kind=icon}
OA
AI
DOI：10.1109/ACCESS.2023.3326723.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Accelerating the calculation of computer-generated holograms (CGHs) is an urgent requirement for realizing practical electro-holography for three-dimensional (3D) displays. Although many algorithms have been developed for fast CGH calculations, sufficient acceleration of the CGH calculations is yet to be achieved. Simplifying CGH calculations using the redundancy of a hologram while recording a 3D image is a promising way for CGH acceleration. That is, the feature that a hologram can reproduce the 3D image almost correctly even if it was recorded with deviations originating from the approximation, etc., can be used to perform the CGH calculations rapidly. Therefore, this study proposes an approximation method for trigonometric functions, which have a heavy computational load and are heavily used in the composition process of the wavefronts emitted from a virtual 3D object such as point-light sources. The proposed method substitutes sin or cos functions with tiny logic operations that are expected to have lower computational loads than the normal functions for fixed or floating precision numbers. Numerical and optical experiments showed that the proposed method can calculate CGH 2.20 times faster on a central processing unit (CPU) and 8.43 times faster on a graphics processing unit (GPU) than the normal implementation, while maintaining sufficient image quality. The proposed method is not only effective in CPU and GPU implementations but also is expected to make a significant contribution to future circuit implementations for CGH-specific computers.
Keyword:
Computer-generated hologram
electro-holography
three-dimensional display
期刊
IF:
3.6
论文数:
9.8W
被引数:
29.4W
机构
引用论文
LED near-eye holographic display with a large non-paraxial hologram generation.png)
OPTICS EXPRESSOAAI
OPTICS EXPRESSIF3.3
OAAI分享收藏Fast generation of full analytical polygon-based computer-generated holograms基于全解析多边形的计算机生成全息图的快速生成OPTICS EXPRESS
OAAI
OPTICS EXPRESSIF3.3
OAAI分享收藏Reducing the computational complexity of high-resolution hologram calculations using polynomial approximationOPTICS EXPRESSOAAI
OPTICS EXPRESSIF3.3
OAAI分享收藏分享收藏
查看更多内容