Perioperative Nursing Management of Patients Undergoing Laparoscopic Ovarian Cystectomy Guided by Ultrasound Imaging under Intelligent Algorithm

Table 2

SSIM results of different denoising algorithms.

Algorithm	Standard deviation at 0.5	Standard deviation at 1	Standard deviation at 1.5	Standard deviation at 2	Standard deviation at 2.5
NL-mean	0.8734	0.7626	0.7368	0.7245	0.6902
CNN	0.9768	0.9345	0.9103	0.8835	0.8523
UNet	0.9624	0.9533	0.9247	0.9024	0.8965
Improved UNet	0.9876	0.9631	0.9428	0.9257	0.9025