TY - RPRT TI - Ongoing Face Recognition Vendor Test (FRVT) part 6A: face recognition accuracy with masks using pre-COVID-19 algorithms AU - Ngan, Mei AU - Grother, Patrick AU - Hanaoka, Kayee PY - 2020 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 8311 DO - 10.6028/NIST.IR.8311 ER -