Invention Grant
- Patent Title: Wavelet domain watermarks
- Patent Title (中): 小波域水印
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Application No.: US12014690Application Date: 2008-01-15
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Publication No.: US08194915B2Publication Date: 2012-06-05
- Inventor: Ravi K. Sharma , Adnan M. Alattar , Farid Ahmed , Geoffrey B. Rhoads
- Applicant: Ravi K. Sharma , Adnan M. Alattar , Farid Ahmed , Geoffrey B. Rhoads
- Applicant Address: US OR Beaverton
- Assignee: Digimarc Corporation
- Current Assignee: Digimarc Corporation
- Current Assignee Address: US OR Beaverton
- Main IPC: G06K9/00
- IPC: G06K9/00
Abstract:
A wavelet domain watermark encoder and decoder embed and detect auxiliary signals in a media signal, such as a still image, video or audio signal. The watermark encoders and decoders employ techniques that take advantage of processing plural levels of resolution of the signal to embed and detect auxiliary information in the media signal.
Public/Granted literature
- US20080292134A1 Wavelet Domain Watermarks Public/Granted day:2008-11-27
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