TY - RPRT TI - Certification Pathway for Downsampling 1000 ppi Fingerprint Friction Ridge Imagery to 500 ppi AU - Libert, John M AU - Grantham, John D AU - Watson, Craig I PY - 2016 PB - National Institute of Standards and Technology SN - NIST SP 500-306 DO - 10.6028/NIST.SP.500-306 ER -