发明名称 |
Apparatus and method for inserting an updateable hidden image into an optical path |
摘要 |
An apparatus for optically embedding hidden data in a source image, wherein the hidden data is updateable in real-time, the apparatus includes (a) optical masks bearing a data image and an encoding carrier image either or both of which may be updated in real-time; (b) optical components for convolving, the data image with the encoding carrier image to produce a spatially dispersed data image; and (c) optical beam combiner for combining the spatially dispersed data image with the source image to produce a source image containing embedded hidden data.
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申请公布号 |
US2003117584(A1) |
申请公布日期 |
2003.06.26 |
申请号 |
US20010027293 |
申请日期 |
2001.12.21 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
REVELLI JOSEPH F.;HONSINGER CHRIS W.;JONES PAUL W.;RAY LAWRENCE A. |
分类号 |
G02B27/46;G06T1/00;G09C5/00;H04N1/32;H04N1/387;(IPC1-7):G03B21/32 |
主分类号 |
G02B27/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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