Research Article
Deep Learning-Based Wavelet Threshold Function Optimization on Noise Reduction in Ultrasound Images
Table 1
Evaluation indexes of image denoising.
| Evaluation level | Relative scale | Decision scale |
| 1 | The best image set is obtained | Very good | 2 | Better than average of the image set | Preferable | 3 | Average level of the image set | Common | 4 | Lower than image set average | Poor | 5 | The worst image concentration | Very bad |
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