Processing of data
Article 2
1. Where both alphanumeric data and fingerprint data of a person are included in a data record created in ECRIS-TCN in accordance with Article 5 of Regulation (EU) 2019/816, the alphanumeric data shall be linked to their corresponding fingerprint data. 2. The fingerprint images compression algorithm to be used shall follow the recommendations of National Institute of Standards and Technology (‘NIST’). Fingerprint data with a resolution of 500 ppi shall be compressed using the WSQ algorithm (ISO/IEC 19794-5:2005). Fingerprint data with a resolution of 1 000 ppi shall be compressed using the JPEG 2000 image compression standard (ISO/IEC 15444-1) and coding system. The target compression ratio shall be 15:1. 3. Replacement or update in ECRIS-TCN of the fingerprint data referred to in Article 4(7) shall be preceded by successful verification of the identity by the central authority of the convicting Member State. The technical specifications for that replacement or update shall be set in accordance with the principles contained in the design of the physical architecture of ECRIS-TCN referred to Article 11(3) of Regulation (EU) 2019/816.