发明名称 |
DYNAMIC DIGITAL WATERMARK |
摘要 |
Some implementations may provide a computer-implemented method for validating a digital document, the method including: receiving, at a computing device, the digital document comprising at least two digital watermarks, the digital document issued by a central entity; retrieving a first digital watermark from the digital document, the first digital watermark visually presented at a first time point; retrieving a second digital watermark from the digital document, the second digital watermark visually presented at a second time point, the second digital watermark being different from the first digital watermark and the second time point being different from the first time point; and reading the digital document based on the retrieved first and second digital watermarks. |
申请公布号 |
US2017053373(A1) |
申请公布日期 |
2017.02.23 |
申请号 |
US201615344882 |
申请日期 |
2016.11.07 |
申请人 |
MorphoTrust USA, LLC |
发明人 |
Martin Brian |
分类号 |
G06T1/00;H04N1/32 |
主分类号 |
G06T1/00 |
代理机构 |
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代理人 |
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主权项 |
1. A computer-implemented method for reading a digital document, the method comprising:
receiving, at a computing device, the digital document comprising at least two digital watermarks, the digital document issued by a central entity; retrieving a first digital watermark from the digital document, the first digital watermark visually presented at a first time point; retrieving a second digital watermark from the digital document, the second digital watermark visually presented at a second time point, the second digital watermark being different from the first digital watermark and the second time point being different from the first time point; and reading the digital document based on the retrieved first and second digital watermarks. |
地址 |
Billerica MA US |