CLASS OF SYMMETRIC LATTICES FOR QUANTIZATION AND DATA EMBEDDING

Application 894/DEL/2005 published 2006-11-10, filed 2005-04-07
Methods and systems for quantization and data embedding are described. In at least some embodiments, a transform is applied on an image that is to be watermarked and statistics associated with the image are computed. The computed statics are quantized using a symmetric lattice, and a watermark is computed using the lattice quantized statistics. The watermark is then inserted into the image.

Applicant

1)MICROSOFT CORPORATION
:ONE MICROSOFT WAY, REDMOND, WASHINGTON 98052, USA U.S.A.

Inventor

1)KAMAL JAIN

International Info

Classification: G06K9/00

Priority Information

10/858,967 U.S.A. 2004-06-01