Noncontact Palm Vein ROI Extraction Based on Improved Lightweight HRnet in Complex Backgrounds

Table 5

Comparison with advanced vein ROI algorithms.

ROI algorithm	CASIA accuracy	TJU-PV accuracy	Self-data accuracy	Params (M)
Improved U-Net	97.78%	98.93%	97.25%	1.16
Proposed	98.23%	98.74%	97.36%	0.45