Watermark-based goods authentication

Details Watermark-based goods authentication Watermark-based goods authentication

2007-09-05

2010-11-30

Johns, Andrew W (Department: 2624)

Image analysis

Applications

C380S055000

Reexamination Certificate

active

07844073

ABSTRACT:
An implementation is described herein facilitates certification of goods and/or identifications of the source of such goods. At least one implementation, described herein, embeds a watermark into a relatively small amount of data in a deterministic manner. This abstract itself is not intended to limit the scope of this patent. The scope of the present invention is pointed out in the appending claims.

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Chang et al., “Geometric Properties of Watermarking Schemes,” Proc. IEEE Int. Conf. on Image Processing, Sept. 2000, vol. III, pp. 714-717.
Busch, et al., “Sensitivity Labels and Invisible Indentification Markings in Human-Readable Output”, SPIE, vol. 4675, 2002, pp. 149-157.
Wang, et al., “Embedding Digital Watermarks in Halftone Screens”, SPIE, vol. 3971, 2000, pp. 218-228.
Yeung, et al., “An Invisible Watermarking Technique For Image Verification”, IEEE, vol. 2, 1997, pp. 680-684.

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