An ROI Extraction Method of Finger Vein Images Based on Large Receptive Field Gradient Operator for Accurate Localization of Joint Cavity

Table 1

Dataset information for experiments.

Datasets	No. of subjects	No. of images	No. of fingers for each subject	No. of images for each subject	Image size
UTFVP	60	3816	6	4	672 × 380 pxl
MMCBNU_6000	100	1440	6	10	640 × 480 pxl
FV-USM	123	6000	4	6	640 × 480 pxl