Fig. 1. Sampling network model based on deep learning
Fig. 2. Binary sampling network model based on deep learning
Fig. 3. Original images used in simulation experiment. (a) Ball; (b) Face
Fig. 4. Simulation results of different measurement matrices. (a)--(f) Results of random Gaussian matrix; (g)--(l) results of Toeplitz matrix; (m)--(r) results of Hadamard matrix; (s)--(x) results of proposed matrix
Fig. 5. Ghost imaging system structure based on compressed sensing. (a) Principle diagram; (b) picture
Fig. 6. Target images of laser imaging experiment. (a) Target1; (b) Target2
Fig. 7. Results of laser imaging under different sampling rates. (a)--(f) Results of random Gaussian matrix; (g)--(l) results of Toeplitz matrix; (m)--(r) results of Hadamard matrix; (s)--(x) results of proposed matrix
Matrix | SR=0.1 | SR=0.2 | SR=0.5 |
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Ball | Face | Ball | Face | Ball | Face |
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GS | 14.04 | 16.08 | 17.45 | 19.98 | 31.71 | 28.95 | TP | 18.14 | 15.75 | 22.95 | 18.85 | 32.82 | 24.45 | HM | 29.25 | 23.25 | 31.68 | 27.48 | 37.82 | 33.28 | Proposed | 31.11 | 27.16 | 34.20 | 29.61 | 39.50 | 33.93 |
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Table 1. PSNR results of different measurement matrices under different sampling rates
Matrix | SR=0.1 | SR=0.2 | SR=0.5 |
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Ball | Face | Ball | Face | Ball | Face |
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GS | 0.205 | 0.311 | 0.254 | 0.450 | 0.766 | 0.796 | TP | 0.352 | 0.315 | 0.478 | 0.446 | 0.867 | 0.717 | HM | 0.878 | 0.646 | 0.910 | 0.795 | 0.977 | 0.941 | Proposed | 0.917 | 0.696 | 0.953 | 0.867 | 0.982 | 0.950 |
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Table 2. SSIM results of different measurement matrices under different sampling rates
Matrix | SR=0.1 | SR=0.2 | SR=0.5 |
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Target1 | Target2 | Target1 | Target2 | Target1 | Target2 |
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GS | 9.28 | 8.53 | 11.84 | 10.92 | 10.36 | 11.98 | TP | 8.91 | 8.46 | 10.32 | 9.81 | 10.06 | 11.18 | HM | 13.33 | 12.97 | 13.49 | 12.88 | 13.18 | 12.34 | Proposed | 14.97 | 12.89 | 14.26 | 15.14 | 15.03 | 14.88 |
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Table 3. PSNR of laser imaging results under different measurement matrices
Matrix | SR=0.1 | SR=0.2 | SR=0.5 |
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Target1 | Target2 | Target1 | Target2 | Target1 | Target2 |
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GS | 0.089 | 0.080 | 0.138 | 0.113 | 0.114 | 0.128 | TP | 0.083 | 0.065 | 0.103 | 0.087 | 0.116 | 0.126 | HM | 0.181 | 0.115 | 0.181 | 0.136 | 0.165 | 0.114 | Proposed | 0.316 | 0.242 | 0.295 | 0.284 | 0.322 | 0.237 |
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Table 4. SSIM of laser imaging results under different measurement matrices