09262794 cites 810 patents.

Methods, devices, systems and computer program products facilitate embedding and extraction of transactional watermarks into and from a video content. One method for selecting an area for watermark insertion includes selecting a candidate area within a frame of the video content that is smaller in size that the frame itself, adding a first and a second watermark value to obtain corresponding first and second versions of the area, add noise to each of the first and second versions, and perform watermark extraction operations to obtain corresponding correlation values for the selected area. The above operations are repeated using different areas that are selected at pseudo-random offset values from the previously selected areas until the entire video frame is exhausted. One or more areas with the highest correlation value(s) are selected and designated as areas that are suitable for watermark insertion.

Title
Transactional video marking system
Application Number
14/214393
Publication Number
9262794 (B2)
Application Date
March 14, 2014
Publication Date
February 16, 2016
Inventor
Guillaume Mercier
Jouy-en-Josas
FR
Jian Zhao
San Diego
CA, US
Agent
Donald L Wenskay
Perkins Coie
Assignee
Verance Corporation
CA, US
IPC
G06T 1/00
G06K 9/00
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