Research Article

Deep Learning-Based Wavelet Threshold Function Optimization on Noise Reduction in Ultrasound Images

Table 1

Evaluation indexes of image denoising.

Evaluation levelRelative scaleDecision scale

1The best image set is obtainedVery good
2Better than average of the image setPreferable
3Average level of the image setCommon
4Lower than image set averagePoor
5The worst image concentrationVery bad