1. Chen Y, Dass SC, Jain AK (2005) Fingerprint quality indices for predicting authentication performance. In: International Conference on Audio-and Video-Based Biometric Person Authentication. Springer, pp 160–170
2. Gao X, Li SZ, Liu R, Zhang P (2007) Standardization of face image sample quality. In: International Conference on Biometrics. Springer, pp 242–251
3. Jenkins R, White D, Van Montfort X, Burton AM (2011) Variability in photos of the same face. Cognition 121(3):313–323
4. Kittler J, Poh N, Fatukasi O, Messer K, Kryszczuk K, Richiardi J, Drygajlo A (2007) Quality dependent fusion of intramodal and multimodal biometric experts. Biometric Technol Hum Identif IV 6539:53903–53903
5. Organization IIS (2004) 19794-5, biometric data interchange – part 5: face image data. ISO/IEC JTC1/SC37 N506, ISO/IEC IS 19794 5. https://www.iso.org/standard/50867.html