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

Table 2

Accuracy of keypoint detection under different thresholds.

Threshold/class	CASIA	TJU-PV	Self-data
Threshold = 3	93.25%	96.27%	92.87%
Threshold = 4	95.43%	97.77%	94.39%
Threshold = 5	98.23%	98.74%	97.36%
Threshold = 6	99.26%	99.34%	98.72%