JPEG 2000 CODEC Certification Guidance for 1000 ppi Fingerprint Friction Ridge Imagery

Abstract

The document describes the procedure by which applications of JPEG 2000 CODECs will be evaluated with respect to conformance to the NIST guidance for compression of 1000 ppi friction ridge images as detailed in NIST Special Publication 500-289 [NIST5]. This guidance is to be followed in preparing friction ridge images for submittal to the FBI’s Next Generation Identification (NGI) system and conformance will ensure that CODECs produce encoded files that retain fidelity to the non-compressed source images within empirically set limits and that such files can be decoded by other compliant JPEG 2000 CODECs maintaining the required fidelity. The document describes the attributes of a set of fingerprint images selected for conformance testing and the rationale for selection of these images based on both examiner assessment of image quality over increasing degrees of JPEG 2000 compression and relative fidelity based on computational metrics described SP 500-289 and supporting studies. The document provides background behind the conformance testing, describes the CODEC pathways to be tested and the metrics used to measure compliance, and provides instructions on how to run the protocol and submit results to NIST for evaluation.