R. Steinmetz

Transitivity Based Enrollment Strategy for Signature Verification

Ralf Steinmetz, Claus Vielhauer, Astrid Mayerhöfer, 2001, ICDAR.

Multimedia and Security Workshop at ACM Multimedia

Ralf Steinmetz, Jana Dittmann, J. Dittmann, 1998 .

Handwriting: Feature Correlation Analysis for Biometric Hashes

Ralf Steinmetz, Claus Vielhauer, C. Vielhauer, 2004, EURASIP J. Adv. Signal Process..

Content-based digital signature for motion pictures authentication and content-fragile watermarking

Ralf Steinmetz, Jana Dittmann, Arnd Steinmetz, 1999, Proceedings IEEE International Conference on Multimedia Computing and Systems.

Biometric hash based on statistical features of online signatures

Ralf Steinmetz, Claus Vielhauer, Astrid Mayerhöfer, 2002, Object recognition supported by user interaction for service robots.

Biometric authentication for ID cards with hologram watermarks

Ralf Steinmetz, Claus Vielhauer, Lucilla Croce Ferri, 2002, IS&T/SPIE Electronic Imaging.