Media type: Electronic Conference Proceeding Title: FFT-based technique for image-signature generation Contributor: Celentano, Augusto; Di Lecce, Vincenzo Published: SPIE, 1997 Published in: SPIE Proceedings (1997) Extent: Language: Not determined DOI: 10.1117/12.263435 ISSN: 0277-786X Origination: Footnote: