发明申请
US20160189326A1 AUTHENTICATING IDENTIFICATION AND SECURITY DOCUMENTS AND OTHER OBJECTS 审中-公开
认证和安全文件及其他对象

AUTHENTICATING IDENTIFICATION AND SECURITY DOCUMENTS AND OTHER OBJECTS
摘要:
The application discloses identification and security documents and methods, apparatus and systems for authenticating such identification and security documents. Some such methods and apparatus involve steganography or data hiding.
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