Novel Approaches to Improve Iris Recognition System Performance Based on Local Quality Evaluation and Feature Fusion

Table 3

Properties of different iris databases.

Iris databases	No. of subclasses	No. of images	Mean (𝑑𝑖)	Size of normalized iris	No. of tracks
CASIA-V1	65	260	48 pixels	512×48 pixels	6
CASIA-V3 Interval	24	240	52 pixels	512×48 pixels	6
MMU-V1	37	179	27 pixels	256×24 pixels	3
JLUBRIRIS-V1	50	729	107 pixels	512×64 pixels	8