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Table 4 A representative list of iris quality assessment algorithms

From: Biometric quality: a review of fingerprint, iris, and face

Category Algorithm Description Type
Combined features Daugman[58] Focus estimate and off-angle measure by deformation function that maximizes circularity Global
   of pupil  
Power spectrum Chen et al.[59] Spectral energy in local regions of the iris Local
Combined features Zuo et al.[60] Assessment of interlacing, illumination, focus, off-angle, area, blur pupil dilation Local, global
Combined features Kalka et al.[8] Evaluation of seven quality parameters and fusing them statistically Local, global
Combined features Proenca[61] Estimation of seven separate quality attributes that impact recognition Local, global