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Chin. Phys. B, 2023, Vol. 32(12): 128702    DOI: 10.1088/1674-1056/accf7d
INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY Prev   Next  

Resolution-enhanced single-pixel imaging using the Hadamard transform matrix

Shu-Hang Bie(别书航), Chen-Hui Wang(王晨晖), Rui-Bing Lv(吕瑞兵), Qian-Qian Bao(鲍倩倩),Qiang Fu(付强), Shao-Ying Meng(孟少英), and Xi-Hao Chen(陈希浩)
Key Laboratory of Optoelectronic Devices and Detection Technology, College of Physics, Liaoning University, Shenyang 110036, China
Abstract  We propose a single-pixel imaging (SPI) method to achieve a higher-resolution image via the Hadamard transform matrix. Unlike traditional SPI schemes, this new method recovers images by correlating single-pixel signals with synchronized transformed patterns of Hadamard bases that are actually projected onto the digital micromirror device. Each transform pattern is obtained through the inverse Fourier transform of the pattern acquired by Gaussian filtering of each Hadamard basis in the frequency domain. The proposed scheme is based on a typical SPI experimental setup and does not add any hardware complexity, enabling the transformation of Hadamard matrices and image reconstruction through data processing alone. Therefore, this approach could be considered as an alternative option for achieving fast SPI in a diffraction-limited imaging system, without the need for additional hardware.
Keywords:  single-pixel imaging      Gaussian filtering      resolution enhancement  
Received:  30 January 2023      Revised:  11 April 2023      Accepted manuscript online:  24 April 2023
PACS:  87.57.cf (Spatial resolution)  
  87.63.lm (Image enhancement)  
Fund: We thank Prof. L. A. Wu for helpful discussions. Project supported by the National Key Research and Development Program of China (Grant No.2018YFB0504302).
Corresponding Authors:  Shao-Ying Meng     E-mail:  mengshaoying@163.com

Cite this article: 

Shu-Hang Bie(别书航), Chen-Hui Wang(王晨晖), Rui-Bing Lv(吕瑞兵), Qian-Qian Bao(鲍倩倩),Qiang Fu(付强), Shao-Ying Meng(孟少英), and Xi-Hao Chen(陈希浩) Resolution-enhanced single-pixel imaging using the Hadamard transform matrix 2023 Chin. Phys. B 32 128702

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