Invention Grant
- Patent Title: Digital watermarking
- Patent Title (中): 数字水印
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Application No.: US13689830Application Date: 2012-11-30
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Publication No.: US09135673B2Publication Date: 2015-09-15
- Inventor: Srinivasa Rao Chalamala , Krishna Rao Kakkirala , Jyoti Beniwal
- Applicant: Tata Consultancy Services Limited
- Applicant Address: IN
- Assignee: Tata Consultancy Services Limited
- Current Assignee: Tata Consultancy Services Limited
- Current Assignee Address: IN
- Agency: Schwegman Lundberg & Woessner, P.A.
- Priority: IN2106/MUM/2012 20120723
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06T1/00

Abstract:
System(s) and method(s) for embedding and extracting a watermark from a digital media are described. The method may include generating a plurality of random patterns where the plurality of random patterns includes at least a primary random pattern and a secondary random pattern. The random patterns are indicative of patterns to be embedded to the digital media. The method may further include converting at least the primary random pattern and the secondary random pattern to a bipolar form. The primary random pattern and the secondary random pattern thereof are converted to a primary bipolar random pattern and a secondary bipolar random pattern. The method may also include embedding one or more of the primary bipolar random pattern and the secondary bipolar random pattern in the digital media as the watermark based on a watermark ID, where the watermark ID is a random pattern.
Public/Granted literature
- US20140023225A1 DIGITAL WATERMARKING Public/Granted day:2014-01-23
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