Table 4 Comparison of mesh qualities obtained with various GPR-related methods
| Â | Sample | PSNR (dB) | |||||
|---|---|---|---|---|---|---|---|
Image | density (%) | GPR | GPRED(5) -CDT | GPRED(5) -EC | GPR- AMA(2) | GPR- AMA(3) | GPR- AMA(4) |
| Â | 1.0 | 29.15 | 29.33 | 30.19 | 29.48 | 30.48 | 30.84 |
| Â | 2.0 | 31.81 | 32.03 | 32.69 | 32.13 | 32.90 | 33.23 |
Lena | 3.0 | 33.35 | 33.52 | 34.12 | 33.50 | 34.21 | 34.51 |
| Â | 4.0 | 34.43 | 34.60 | 35.14 | 34.45 | 35.11 | 35.39 |
| Â | 1.0 | 31.12 | 30.22 | 30.65 | 29.31 | 30.53 | 31.06 |
| Â | 2.0 | 33.10 | 32.61 | 32.86 | 32.18 | 32.86 | 33.24 |
Peppers | 3.0 | 34.01 | 33.75 | 33.96 | 33.41 | 33.98 | 34.23 |
| Â | 4.0 | 34.61 | 34.47 | 34.73 | 34.08 | 34.61 | 34.88 |