Title:
How to put digital watermarking into a digital video
Document Type and Number:
Japanese Patent JP6162734
Kind Code:
B2
Abstract:
Data to be impressed upon the average value of a chrominance portion of a block, is replicated at least once. The original and each replica is impressed on blocks in the same block position of separate frames. The frames that have like-positioned blocks that are carrying the same data are considered to be a group. Specific blocks of the frame may be embedded with a particular known data sequence rather than user data. Each group may employ a different known sequence. Instead of simply repeating the data for each like-positioned block of a group, the amount added to the average value for each such block may be changed slightly from frame to frame in group, even when the complexity of the blocks is the same. At a receiver, the multiple instances of the same data bit are extracted and combined to form a single received bit.
More Like This:
| JP2004129279 | DIRECT PRINTING ADAPTER |
| JPS6437196 | MOVING DETECTION CIRCUIT |
Inventors:
Mohammad Hossein Zara Visa De
Application Number:
JP2015025895A
Publication Date:
July 12, 2017
Filing Date:
February 13, 2015
Export Citation:
Assignee:
Alcatel-Lucent USA Inc.
International Classes:
H04N11/00; H04N19/467; G06K9/00; G06K9/36; G06T1/00; H04L9/12; H04N1/387; H04N5/445; H04N5/913; H04N7/025; H04N7/08; H04N7/081; H04N7/16; H04N7/24; H04N11/24
Domestic Patent References:
| JP2000175161A |
Foreign References:
| US20030053654 |
Other References:
上野 義人,村上 健自,動きベクトル参照型動画像電子透かし方式 A Digital Video Watermarking System by Associating with the Motion Estimation,情報処理学会論文誌,日本,社団法人情報処理学会,2002年 8月15日,第43巻第8号,P.2511-2518
Attorney, Agent or Firm:
Okabe
Koji Yoshizawa
Koji Yoshizawa