Table 1 The SAD, RMSE and PSNR comparison between SU_DCS and VCA_FCLS.
From: Endmember extraction and abundance estimation algorithm based on double-compressed sampling
Endmember number | Evaluation index | SU_DCS | VCA_FCLS | ||||
|---|---|---|---|---|---|---|---|
Sampling rate | |||||||
0.1 | 0.2 | 0.3 | 0.4 | 0.5 | |||
\(P = 4\) | SAD (rad) | 5.4e−4 | 5.1e−4 | 5.3e−4 | 5.3e−4 | 9.4e−4 | 2.5e−6 |
RMSE | 1.4e−3 | 1.4e−3 | 1.7e−3 | 1.4e−3 | 1.2e−3 | 2.1e−6 | |
PSNR (dB) | 84.55 | 86.64 | 86.856 | 87.35 | 86.92 | 136.25 | |
\(P = 5\) | SAD (rad) | 6.7e−4 | 6.3e−4 | 8.2e−4 | 5.6e−4 | 7.2e−4 | 8.9e−7 |
RMSE | 2.4e−3 | 1.1e−3 | 1.5e−3 | 1.1e−3 | 1.8e−3 | 1.2e−6 | |
PSNR (dB) | 82.97 | 84.64 | 84.49 | 84.77 | 84.17 | 142.18 | |
\(P = 6\) | SAD (rad) | 8.9e−4 | 7.e−4 | 1.7e−3 | 8.7e−4 | 7.3e−4 | 2.8e−6 |
RMSE | 3.5e−3 | 1.7e−3 | 5.9e−3 | 3.4e−3 | 1.9e−3 | 2.3e−6 | |
PSNR (dB) | 79.80 | 81.58 | 82.42 | 82.76 | 82.38 | 133.98 | |
\(P = 7\) | SAD (rad) | 7.0e−4 | 1.1e−3 | 7.4e−4 | 6.6e−4 | 7.8e−4 | 4.4e−6 |
RMSE | 2.9e−3 | 3.2e−3 | 2.9e−3 | 2.4e−3 | 2.9e−3 | 5.8e−6 | |
PSNR (dB) | 78.19 | 80.17 | 80.89 | 80.61 | 80.88 | 122.42 | |
