Acta Photonica Sinica, Volume. 53, Issue 11, 1110002(2024)
Noise Image Processing Algorithm for a Low-light EBCMOS Acquisition System Based on FPGA
Figures & Tables(21)
Fig. 16. Comparison of processing time for a single frame image between software and hardware platforms
Fig. 17. Resource consumption of the algorithm on FPGA in this study
Table 1. Peak signal-to-noise ratio of the denoised image at 10-1 lx test
View tableView in ArticleTable 1. Peak signal-to-noise ratio of the denoised image at 10-1 lx test
Filtering algorithms Noise map Median filtering Gaussian filtering Ref. ［ 17 ］Ref. ［ 22 ］Proposed algorithm Lena 19.421 3 31.966 28.930 28.824 33.006 36.834 Peppers 19.050 9 31.131 28.330 27.562 32.237 36.038 Goldhill 21.664 9 31.131 28.330 27.3987 31.016 34.222
Table 2. Peak signal-to-noise ratio of the denoised image at 10-2 lx test
View tableView in ArticleTable 2. Peak signal-to-noise ratio of the denoised image at 10-2 lx test
Filtering algorithms Noise map Median filtering Gaussian filtering Ref. ［ 17 ］Ref. ［ 22 ］Proposed algorithm Lena 19.347 28.558 27.195 28.669 28.737 35.714 Peppers 18.883 33.880 29.759 30.906 34.791 35.293 Goldhill 19.107 33.145 29.416 31.267 34.417 35.125
Table 3. Peak signal-to-noise ratio of the denoised image at 10-4 lx test
View tableView in ArticleTable 3. Peak signal-to-noise ratio of the denoised image at 10-4 lx test
Filtering algorithms Noise map Median filtering Gaussian filtering Ref. ［ 17 ］Ref. ［ 22 ］Proposed algorithm Lena 18.541 35.652 28.165 34.321 36.776 39.478 Peppers 18.266 34.768 28.634 33.657 36.527 37.545 Goldhill 18.404 34.132 29.628 32.972 35.3994 37.186
Table 4. Comparison of software and hardware platforms
View tableView in ArticleTable 4. Comparison of software and hardware platforms
PSNR Software platform FPGA Error 1×10-1 lx noise map 30.257 30.125 0.436% 1×10-2 lx noise map 33.787 33.504 0.517% 1×10-4 lx noise map 38.611 38.395 0.563%
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Yi CAO, Xiangping ZHU, Xiaomo ZHANG, Wei ZHAO, Jun MA. Noise Image Processing Algorithm for a Low-light EBCMOS Acquisition System Based on FPGA[J]. Acta Photonica Sinica, 2024, 53(11): 1110002
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Received: Mar. 1, 2024
Accepted: Apr. 24, 2024
Published Online: Jan. 8, 2025
The Author Email: Xiangping ZHU (xpzhu@opt.ac.cn)
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