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. 2018 May 8;18(5):1460. doi: 10.3390/s18051460

Figure 17.

Figure 17

The original 50 MHz SR experimental image of (a) EDM notches, (c) flat-bottom holes and the reconstructed results in time domain, (b) CR = 60%, PSNR = 35.46 dB (d) CR = 60%, PSNR = 35.96 dB.