中国物理B ›› 2019, Vol. 28 ›› Issue (6): 64202-064202.doi: 10.1088/1674-1056/28/6/064202
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
Fast Fourier single-pixel imaging based on Sierra-Lite dithering algorithm
Zhen-Yu Liang(梁振宇), Zheng-Dong Cheng(程正东), Yan-Yan Liu(刘严严), Kuai-Kuai Yu(于快快), Yang-Di Hu(胡洋頔)
- 1 National University of Defense Technology, State Key Laboratory of Pulsed Power Laser Technology, Hefei 230037, China;
2 Science and Technology on Electro-Optical Information Security Control Laboratory, Tianjin 300000, China
Fast Fourier single-pixel imaging based on Sierra-Lite dithering algorithm
Zhen-Yu Liang(梁振宇)1, Zheng-Dong Cheng(程正东)1, Yan-Yan Liu(刘严严)2, Kuai-Kuai Yu(于快快)2, Yang-Di Hu(胡洋頔)1
- 1 National University of Defense Technology, State Key Laboratory of Pulsed Power Laser Technology, Hefei 230037, China;
2 Science and Technology on Electro-Optical Information Security Control Laboratory, Tianjin 300000, China
摘要：
The single-pixel imaging (SPI) technique is able to capture two-dimensional (2D) images without conventional array sensors by using a photodiode. As a novel scheme, Fourier single-pixel imaging (FSI) has been proven capable of reconstructing high-quality images. Due to the fact that the Fourier basis patterns (also known as grayscale sinusoidal patterns) cannot be well displayed on the digital micromirror device (DMD), a fast FSI system is proposed to solve this problem by binarizing Fourier pattern through a dithering algorithm. However, the traditional dithering algorithm leads to low quality as the extra noise is inevitably induced in the reconstructed images. In this paper, we report a better dithering algorithm to binarize Fourier pattern, which utilizes the Sierra-Lite kernel function by a serpentine scanning method. Numerical simulation and experiment demonstrate that the proposed algorithm is able to achieve higher quality under different sampling ratios.
中图分类号: (Imaging and optical processing)
- 42.30.-d