Invention Grant
- Patent Title: Method and apparatus for providing reduced reference techniques for low frequency watermarking
- Patent Title (中): 用于为低频水印提供缩减参考技术的方法和装置
-
Application No.: US10872963Application Date: 2004-06-21
-
Publication No.: US07769199B2Publication Date: 2010-08-03
- Inventor: Jeffrey Lubin , Hui Cheng
- Applicant: Jeffrey Lubin , Hui Cheng
- Agency: McDonnell Boehnen Hulbert & Berghoff LLP
- Main IPC: G06K9/00
- IPC: G06K9/00
Abstract:
A method and apparatus for using a reference in a watermarking application is disclosed. Watermarked content and a reduced resolution reference are registered such that registration parameters are calculated. The watermarked content is processed using the registration parameters. A watermark is recovered using the processed watermarked content and the reduced resolution reference.
Public/Granted literature
- US20050018875A1 Method and apparatus for providing reduced reference techniques for low frequency watermarking Public/Granted day:2005-01-27
Information query
