Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Geoffrey B. Rhoads0
Date of Patent
January 2, 2007
0Patent Application Number
103366500
Date Filed
January 2, 2003
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A pattern signal is steganographically encoded in a content object to aid in identifying distortion (e.g., image rotation) to which the object may be subjected. The signal may include a feature that can be used to unambiguously identify correct orientation.
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