| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve a steganographic system and applications therefor in an extended security financial commercial transaction, a forged prevention identification card, a fraud suppression system for a cellular telephone, a modem channel hiding in a video transmission, photocopy kiosk having an automatic copyright detection, and an image object subjected to hot-link mode (for example, with embedded URL) used in the Internet. <P>SOLUTION: The present invention is disclosed to facilitate scale and rotation registration for steganographic decoding, to improve techniques for enhancement in decoding without accessing originals which are not coded and robustness of steganographic coding in motion pictures and/or in the presence of lossy compression/tensile, and to represent data with patterned bit cells for making energy in a spatial domain facilitate decoding registration. <P>COPYRIGHT: (C)2008,JPO&INPIT |
