| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Color Fourier single-pixel imaging with random color filter array |
| Jialiang Chen(陈佳亮), Wei Zhu(朱维), Le Wang(王乐)†, and Shengmei Zhao(赵生妹) |
| School of Communications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China |
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Abstract Color Fourier single-pixel imaging (FSI) enables efficient spectral and spatial imaging. Here, we propose a Fourier single-pixel imaging scheme with a random color filter array (FSI-RCFA). The proposed method employs a random color filter array (RCFA) to modulate Fourier patterns. A three-step phase-shifting technique reconstructs the Fourier spectrum, followed by an RCFA-based demosaicing algorithm to recover color images. Compared to traditional color FSI based on Bayer color filter array schemes (FSI-BCFA), our approach achieves superior separation between chrominance and luminance components in the frequency domain. Simulation results demonstrate that the FSI-RCFA method achieves a lower mean squared error (MSE), a higher peak signal-to-noise ratio (PSNR), and superior noise resistance compared to FSI-BCFA, while enabling direct single-channel pixel measurements for targeted applications such as agricultural defect detection.
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Received: 22 March 2025
Revised: 13 July 2025
Accepted manuscript online: 19 July 2025
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PACS:
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42.30.Va
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(Image forming and processing)
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42.30.Wb
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(Image reconstruction; tomography)
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| Fund: This project was supported by the National Natural Science Foundation of China (Grant Nos. 62001249 and 62375140). |
Corresponding Authors:
Le Wang
E-mail: njwanglele@163.com
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Cite this article:
Jialiang Chen(陈佳亮), Wei Zhu(朱维), Le Wang(王乐), and Shengmei Zhao(赵生妹) Color Fourier single-pixel imaging with random color filter array 2025 Chin. Phys. B 34 094210
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