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

Table 2

Quantitative comparison of various threshold functions for denoising (dB).

Functional model	MSE	PSNR	SSIM
Original image	30.875	32.895	0.416
Hard threshold function denoising	22.439	34.608	0.636
Soft threshold function denoising	24.326	34.175	0.576
Median function denoising	22.359	34.640	0.636
Optimized wavelet function threshold denoising	20.796	34.294	0.672