Patent №
US 7,412,151
Granted
2008-08-12
Filed 1999
Owner
U.S. PHILIPS CORPORATION
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
09348891
A method and arrangement for detecting a watermark embedded in an MPEG compressed signal includes a conventional MPEG decoder stripped to such an extent that a modified baseband video signal suitable for watermark detection is obtained. A plurality of pictures with the embedded watermark is accumulated (2,3,4) in the transform domain, and the inverse DCT (5) is applied to the accumulated result. Conventional watermark detection (6) is then applied to the accumulated plurality of pictures in the spatial domain.
AI classification
Ownership
U.S. PHILIPS CORPORATION
assignment · 100910192
Assignors
KALKER, ANTONIUS A.C.M., HAITSMA, JAAP A.
On an employer assignment, the assignors are typically the inventors.