The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 19, 2016
Filed:
Mar. 28, 2014
Orange, Paris, FR;
Gaetan Le Guelvouit, Thorigne-Fouillard, FR;
Francois Daude, Rennes, FR;
Orange, Paris, FR;
Abstract
A method for watermarking a sequence of images is provided. The method implements the following steps, for at least one current image: comparing the current image with a preceding image of the sequence, delivering a difference image representing a motion between the preceding image and the current image; if the difference between the current image and the preceding image is above a predetermined threshold, watermarking the current image by inserting a message comprising a field carrying an identifier of the current image and a field carrying a soft hash obtained from at least one portion of the difference image; and if not, watermarking the current image by inserting a message comprising a field carrying an identifier of the current image.