JP4294538B2 - 映像に透かしを埋め込む方法及び該方法を用いたデジタルビデオ記録装置 - Google Patents
映像に透かしを埋め込む方法及び該方法を用いたデジタルビデオ記録装置 Download PDFInfo
- Publication number
- JP4294538B2 JP4294538B2 JP2004128594A JP2004128594A JP4294538B2 JP 4294538 B2 JP4294538 B2 JP 4294538B2 JP 2004128594 A JP2004128594 A JP 2004128594A JP 2004128594 A JP2004128594 A JP 2004128594A JP 4294538 B2 JP4294538 B2 JP 4294538B2
- Authority
- JP
- Japan
- Prior art keywords
- watermark
- embedding
- video
- embedded
- sequence
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 250
- 230000001131 transforming effect Effects 0.000 claims 2
- 230000008569 process Effects 0.000 description 94
- 238000007906 compression Methods 0.000 description 92
- 230000006835 compression Effects 0.000 description 72
- 238000010586 diagram Methods 0.000 description 44
- 238000000605 extraction Methods 0.000 description 31
- 238000006243 chemical reaction Methods 0.000 description 25
- 238000001514 detection method Methods 0.000 description 18
- 230000009466 transformation Effects 0.000 description 14
- 238000012545 processing Methods 0.000 description 12
- 238000013139 quantization Methods 0.000 description 12
- 230000001965 increasing effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 230000004075 alteration Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005693 optoelectronics Effects 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
- H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
- H04N1/32154—Transform domain methods
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
- H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
- H04N1/32154—Transform domain methods
- H04N1/32165—Transform domain methods using cosine transforms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
- H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
- H04N1/32154—Transform domain methods
- H04N1/3217—Transform domain methods using wavelet transforms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
- H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
- H04N1/32267—Methods relating to embedding, encoding, decoding, detection or retrieval operations combined with processing of the image
- H04N1/32277—Compression
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/46—Embedding additional information in the video signal during the compression process
- H04N19/467—Embedding additional information in the video signal during the compression process characterised by the embedded information being invisible, e.g. watermarking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/48—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using compressed domain processing techniques other than decoding, e.g. modification of transform coefficients, variable length coding [VLC] data or run-length data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2389—Multiplex stream processing, e.g. multiplex stream encrypting
- H04N21/23892—Multiplex stream processing, e.g. multiplex stream encrypting involving embedding information at multiplex stream level, e.g. embedding a watermark at packet level
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/913—Television signal processing therefor for scrambling ; for copy protection
- H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
- H04N2005/91335—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a watermark
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/913—Television signal processing therefor for scrambling ; for copy protection
- H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
- H04N2005/91342—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being an authentication signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
- H04N2201/3225—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document
- H04N2201/3233—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document of authentication information, e.g. digital signature, watermark
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
- H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
- H04N5/775—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/78—Television signal recording using magnetic recording
- H04N5/781—Television signal recording using magnetic recording on disks or drums
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/84—Television signal recording using optical recording
- H04N5/85—Television signal recording using optical recording on discs or drums
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
- H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
- H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Editing Of Facsimile Originals (AREA)
- Image Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Television Signal Processing For Recording (AREA)
- Television Systems (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
Description
ヤング・ヤン(Yang Yan)、ツァング・ドング(Zhang Dong)著「Mバンドウェーブレット変換によるアルゴリズムの高度化(Enhancement of Algorithms via M−Band Wavelet Transform)」、SPIE生物医学光通信及び光電子イメージング会報(Proceedings of SPIE Biomedical Photonics and Optoelectronic Imaging)、2000年、165−169ページ
このとき、デジタル映像内のRWが埋め込まれる領域と、FWが埋め込まれる領域とは互いに重なることもあり、また互いに異なる場合もある。しかし、FWの埋込みにより、RWが抽出されることで受ける影響を最小化するために、好ましくはRWとFWは、その領域を異にして埋込み及び抽出される。RW及びFWの埋込みと映像圧縮の同時遂行に関する具体的な説明もまた後述する。
本発明においては、圧縮と共に強靭な透かしを埋め込むために、秘密キーにより発生された擬似ランダムシーケンスを埋め込もうとする情報dだけ円状シフト(circular shift)させることにより、透かしを埋め込む方法を用いた。
w= w2 (1)
2n:ランダムシーケンスの長さ
2m:許容誤差帯域幅
ここで、2m−1を足した理由は、四捨五入のためのものであり、Infoは(n−m)bitsの長さを有する2進データである。
一般的にビデオデータは、連続したイメージの列であるため、イメージ透かし技法をそのまま適用することができる。しかし、イメージ透かし技法をそのままビデオ透かし技法として用いるのに最も大きな問題点として浮かび上がる事項は計算の複雑度である。この計算の複雑度を減らすことが、現在ビデオ透かし技法において解決しなければならない重要な課題であると言える。
F’=F+αw (3)
ここで、Fは、ウェーブレット変換された原映像をいい、αは埋込み強度、wは透かし、F’は透かしが埋め込まれた映像を意味する。
離散コサイン変換DCTは、現在停止映像や動画像の圧縮に最も汎用的に用いられている変換である。本発明においては、離散コサイン変換領域で実時間で透かしを埋め込むために、イントラフレームのDCT係数のうちDCまたはAC係数のLSBにシフトシーケンス透かし技法を用いて透かしを埋め込む。この方法を用いると、非常に簡単かつ効率的に透かしを埋め込むことができ、圧縮に極めて強靭な特性を示す。
軟弱な透かしは、映像の偽変造の有無と偽変造された領域を見つけ出すために用いられる。強靭な透かしは、原映像の一部分を偽変造した場合にも透かし情報が抽出される可能性があるため、強靭な透かしの埋込み、検出だけでは正確な偽変造領域を見つけ出すことは不可能である。従って、本発明の目的である撮影されてA/D変換されたデジタル映像の偽変造の防止及び偽変造領域の検出のためには、必ず軟弱な透かしが用いられなければならない。本発明において提案される軟弱な透かし技法は、圧縮過程と共に透かしを埋め込む方法であり、映像の圧縮過程において圧縮されたビットストリームに軟弱な透かしを埋め込む方法である。
埋め込まれるビットストリームの位置を知るために、代表的な動画像圧縮フォーマットであるMPEG−2構造を図13に示した。図13は、MPEG構造を説明する図である。
前記においては、離散コサイン変換領域において軟弱な透かしを圧縮過程と共に埋め込む方法について説明し、以下においては、本発明によってウェーブレット変換領域において軟弱な透かしを圧縮過程と共に埋め込む方法について説明する。
110 映像データ処理部(A/D)
120 固定情報生成部
130 任意情報生成部
140 透かし生成部
150 圧縮及び透かし生成部
160 映像データ処理部(デコーダ+D/A)
170 ネットワーク連結部
180 映像記録部
190 実時間運営部
Claims (6)
- 映像に透かしを埋め込む方法において、
長さが2 n である擬似ランダムシーケンスを生成するステップと、
透かしに埋め込もうとする情報がkであるとき、前記擬似ランダムシーケンスを距離d=k*2 m +p(pは0以上、2 m−1 未満である)だけ円状シフトさせ、透かしシーケンスを生成するステップと、
前記透かしシーケンスに透かしの埋込み強度を示す係数を乗算するステップと、
前記乗算された透かしシーケンスをウェーブレット変換された原映像と合算させ、周波数変換領域における透かしが埋め込まれた映像を生成するステップと、
前記透かしが埋め込まれた映像をウェーブレット逆変換し、空間領域における透かしが埋め込まれた映像を生成するステップとを含み、
前記透かしが埋め込まれた映像と前記疑似ランダムシーケンスとの相関度に基づいて前記埋め込み情報kが検出されることを特徴とする透かしの埋込み方法。 - 映像に透かしを埋め込む方法において、
長さが2 n である擬似ランダムシーケンスを生成するステップと、
透かしに埋め込もうとする情報がkであるとき、前記擬似ランダムシーケンスを距離d=k*2 m +p(pは0以上、2 m−1 未満である)だけ円状シフトさせ、透かしシーケンスを生成するステップと、
前記透かしシーケンスをウェーブレット逆変換するステップと、
前記ウェーブレット逆変換された透かしシーケンスに透かしの埋込み強度を示す係数を乗算するステップと、
前記乗算された透かしシーケンスを空間領域の原映像と合算させ、透かしが埋め込まれた映像を生成するステップとを含み、
前記透かしが埋め込まれた映像と前記疑似ランダムシーケンスとの相関度に基づいて前記埋め込み情報kが検出されることを特徴とする透かしの埋込み方法。 - 請求項1または2に記載の透かしの埋込み方法によって実時間で撮影される映像に透かしを埋め込んで記録するデジタルビデオ記録装置。
- 映像に透かしを埋め込む方法において、
長さが2 n である擬似ランダムシーケンスを生成するステップと、
透かしに埋め込もうとする情報がkであるとき、前記擬似ランダムシーケンスを距離d=k*2 m +p(pは0以上、2 m−1 未満である)だけ円状シフトさせ、透かしシーケンスを生成するステップと、
原映像を離散コサイン変換させるステップと、
前記原映像の離散コサイン変換された係数のうち、DCまたはAC係数のLSBを前記透かしシーケンスに代替するステップと、
前記LSBが代替された映像を離散コサイン逆変換するステップとを含み、
前記透かしが埋め込まれた映像と前記疑似ランダムシーケンスとの相関度に基づいて前記埋め込み情報kが検出されることを特徴とする透かしの埋込み方法。 - 映像に透かしを埋め込む方法において、
長さが2 n である擬似ランダムシーケンスを生成するステップと、
透かしに埋め込もうとする情報がkであるとき、前記擬似ランダムシーケンスを距離d=k*2 m +p(pは0以上、2 m−1 未満である)だけ円状シフトさせ、透かしシーケンスを生成するステップと、
前記透かしシーケンスを離散コサイン逆変換するステップと、
前記離散コサイン変換された透かしシーケンスを原映像と合算するステップとを含み、
前記透かしが埋め込まれた映像と前記疑似ランダムシーケンスとの相関度に基づいて前記埋め込み情報kが検出されることを特徴とする透かしの埋込み方法。 - 請求項4または5に記載の透かしの埋込み方法によって実時間で撮影される映像に透かしを埋め込んで記録するデジタルビデオ記録装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20030026248A KR100624751B1 (ko) | 2003-04-25 | 2003-04-25 | 영상에 워터마크를 삽입하는 방법 및 상기 방법을 이용한디지털 비디오 저장장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004328747A JP2004328747A (ja) | 2004-11-18 |
JP4294538B2 true JP4294538B2 (ja) | 2009-07-15 |
Family
ID=33509582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004128594A Expired - Lifetime JP4294538B2 (ja) | 2003-04-25 | 2004-04-23 | 映像に透かしを埋め込む方法及び該方法を用いたデジタルビデオ記録装置 |
Country Status (3)
Country | Link |
---|---|
US (2) | US7707422B2 (ja) |
JP (1) | JP4294538B2 (ja) |
KR (1) | KR100624751B1 (ja) |
Families Citing this family (100)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7644282B2 (en) | 1998-05-28 | 2010-01-05 | Verance Corporation | Pre-processed information embedding system |
US6737957B1 (en) | 2000-02-16 | 2004-05-18 | Verance Corporation | Remote control signaling using audio watermarks |
EP1215880A3 (en) * | 2000-12-07 | 2003-08-13 | Sony United Kingdom Limited | Embedding data in material |
ES2507642T3 (es) | 2002-10-15 | 2014-10-15 | Verance Corporation | Sistema de supervisión de medios, de gestión y de información |
US7460684B2 (en) | 2003-06-13 | 2008-12-02 | Nielsen Media Research, Inc. | Method and apparatus for embedding watermarks |
US20060239501A1 (en) | 2005-04-26 | 2006-10-26 | Verance Corporation | Security enhancements of digital watermarks for multi-media content |
US9055239B2 (en) | 2003-10-08 | 2015-06-09 | Verance Corporation | Signal continuity assessment using embedded watermarks |
US7369677B2 (en) | 2005-04-26 | 2008-05-06 | Verance Corporation | System reactions to the detection of embedded watermarks in a digital host content |
NZ552644A (en) | 2004-07-02 | 2008-09-26 | Nielsen Media Res Inc | Methods and apparatus for mixing compressed digital bit streams |
GB2419762A (en) * | 2004-11-01 | 2006-05-03 | Sony Uk Ltd | Method of generating protected media signals by replacing data bits with hash values |
JP4728104B2 (ja) * | 2004-11-29 | 2011-07-20 | 株式会社日立製作所 | 電子画像の真正性保証方法および電子データ公開システム |
KR100664031B1 (ko) * | 2005-02-18 | 2007-01-03 | 엘지전자 주식회사 | 워터마킹 삽입/추출 방법 및 워터마킹 프로세서의 하드웨어암호화 모듈 |
WO2006116270A2 (en) * | 2005-04-26 | 2006-11-02 | Verance Corporation | Security enhancements of digital watermarks for multi-media content |
JP4473779B2 (ja) * | 2005-05-23 | 2010-06-02 | 株式会社東芝 | 超音波診断装置及びその画像処理方法 |
US8020004B2 (en) | 2005-07-01 | 2011-09-13 | Verance Corporation | Forensic marking using a common customization function |
US8781967B2 (en) | 2005-07-07 | 2014-07-15 | Verance Corporation | Watermarking in an encrypted domain |
US7623717B2 (en) * | 2005-08-31 | 2009-11-24 | Microsoft Corporation | Capturing device for embedding software into raw sensor data |
US7715587B2 (en) * | 2005-10-28 | 2010-05-11 | Lawrence N. Ginsberg | Correlation-based system for watermarking continuous digital media |
US7715588B2 (en) | 2005-10-28 | 2010-05-11 | Lawrence N. Ginsberg | Two level cross-correlation based system for watermarking continuous digital media |
EP1958147A1 (en) * | 2005-11-24 | 2008-08-20 | Koninklijke Philips Electronics N.V. | Multibit forensic watermark with encrypted detection key |
KR100741519B1 (ko) * | 2005-12-08 | 2007-07-20 | 연세대학교 산학협력단 | 워터마킹을 이용한 생체 영상의 인증/유출 방지 방법 |
JP2009530896A (ja) * | 2006-03-17 | 2009-08-27 | エヌエックスピー ビー ヴィ | 修飾子電子透かしを用いた圧縮方式、及びこの圧縮方式を用いて画像をフレームメモリに一次記憶する装置 |
KR101213161B1 (ko) * | 2006-06-14 | 2012-12-17 | 삼성전자주식회사 | 압축영역에서의 비디오 워터마킹 장치 및 그 방법 |
KR20070120337A (ko) * | 2006-06-19 | 2007-12-24 | (주)유디웍스 | 영상감시장치(디브이알) 영상의 위변조 감지를 위한워터마크 삽입 및 검출 장치 및 방법 |
WO2008045950A2 (en) | 2006-10-11 | 2008-04-17 | Nielsen Media Research, Inc. | Methods and apparatus for embedding codes in compressed audio data streams |
JP2008131282A (ja) * | 2006-11-20 | 2008-06-05 | Sony Corp | 映像伝送方法、映像伝送システム及び映像処理装置 |
US8218025B2 (en) | 2007-02-15 | 2012-07-10 | Fujifilm Corporation | Image capturing apparatus, image capturing method, and computer program product |
JP2008228281A (ja) * | 2007-02-15 | 2008-09-25 | Fujifilm Corp | 撮像装置、撮像方法、及びプログラム |
US8116514B2 (en) * | 2007-04-17 | 2012-02-14 | Alex Radzishevsky | Water mark embedding and extraction |
US7844116B2 (en) * | 2007-04-30 | 2010-11-30 | Xerox Corporation | Method for identifying images after cropping |
US8200959B2 (en) | 2007-06-28 | 2012-06-12 | Cisco Technology, Inc. | Verifying cryptographic identity during media session initialization |
US8417942B2 (en) | 2007-08-31 | 2013-04-09 | Cisco Technology, Inc. | System and method for identifying encrypted conference media traffic |
US7844117B2 (en) * | 2007-09-07 | 2010-11-30 | Xerox Corporation | Method for identifying images under distortion via noise characterization and bregman optimal matrix approximations |
US8380993B2 (en) | 2007-12-07 | 2013-02-19 | Broadcom Corporation | Method and system for robust watermark insertion and extraction for digital set-top boxes |
US20090147985A1 (en) * | 2007-12-07 | 2009-06-11 | Xuemin Chen | METHOD AND SYSTEM FOR secure WATERMARK EMBEDDING AND EXTRACTION DATA FLOW ARCHITECTURE |
US9984369B2 (en) * | 2007-12-19 | 2018-05-29 | At&T Intellectual Property I, L.P. | Systems and methods to identify target video content |
US20090169001A1 (en) * | 2007-12-28 | 2009-07-02 | Cisco Technology, Inc. | System and Method for Encryption and Secure Transmission of Compressed Media |
US8837598B2 (en) * | 2007-12-28 | 2014-09-16 | Cisco Technology, Inc. | System and method for securely transmitting video over a network |
KR101426270B1 (ko) * | 2008-02-13 | 2014-08-05 | 삼성전자주식회사 | 소프트웨어의 전자 서명 생성 방법, 검증 방법, 그 장치,및 그 방법을 실행하기 위한 프로그램을 기록한 컴퓨터로읽을 수 있는 기록매체 |
US8259938B2 (en) | 2008-06-24 | 2012-09-04 | Verance Corporation | Efficient and secure forensic marking in compressed |
JP5046047B2 (ja) * | 2008-10-28 | 2012-10-10 | セイコーインスツル株式会社 | 画像処理装置、及び画像処理プログラム |
US8305633B2 (en) * | 2009-06-26 | 2012-11-06 | Fuji Xerox Co., Ltd. | Registering apparatus, authentication system, registering program storage medium and registering method |
US8838977B2 (en) | 2010-09-16 | 2014-09-16 | Verance Corporation | Watermark extraction and content screening in a networked environment |
US8615104B2 (en) | 2011-11-03 | 2013-12-24 | Verance Corporation | Watermark extraction based on tentative watermarks |
US8533481B2 (en) | 2011-11-03 | 2013-09-10 | Verance Corporation | Extraction of embedded watermarks from a host content based on extrapolation techniques |
US8923548B2 (en) | 2011-11-03 | 2014-12-30 | Verance Corporation | Extraction of embedded watermarks from a host content using a plurality of tentative watermarks |
US8682026B2 (en) | 2011-11-03 | 2014-03-25 | Verance Corporation | Efficient extraction of embedded watermarks in the presence of host content distortions |
US8745403B2 (en) | 2011-11-23 | 2014-06-03 | Verance Corporation | Enhanced content management based on watermark extraction records |
JP5974463B2 (ja) * | 2011-11-29 | 2016-08-23 | 富士通株式会社 | 電子透かし埋め込み装置、電子透かし埋め込み方法、電子透かし検出装置及び電子透かし検出方法 |
US9323902B2 (en) | 2011-12-13 | 2016-04-26 | Verance Corporation | Conditional access using embedded watermarks |
US9547753B2 (en) | 2011-12-13 | 2017-01-17 | Verance Corporation | Coordinated watermarking |
US9571606B2 (en) | 2012-08-31 | 2017-02-14 | Verance Corporation | Social media viewing system |
US8869222B2 (en) | 2012-09-13 | 2014-10-21 | Verance Corporation | Second screen content |
US9106964B2 (en) | 2012-09-13 | 2015-08-11 | Verance Corporation | Enhanced content distribution using advertisements |
US8726304B2 (en) | 2012-09-13 | 2014-05-13 | Verance Corporation | Time varying evaluation of multimedia content |
WO2014153199A1 (en) | 2013-03-14 | 2014-09-25 | Verance Corporation | Transactional video marking system |
US9485089B2 (en) | 2013-06-20 | 2016-11-01 | Verance Corporation | Stego key management |
US9251549B2 (en) | 2013-07-23 | 2016-02-02 | Verance Corporation | Watermark extractor enhancements based on payload ranking |
US9208334B2 (en) | 2013-10-25 | 2015-12-08 | Verance Corporation | Content management using multiple abstraction layers |
JP2015139008A (ja) * | 2014-01-20 | 2015-07-30 | 日本放送協会 | 暗号化装置、復号装置、暗号化プログラム、および復号プログラム |
US9552628B2 (en) | 2014-03-12 | 2017-01-24 | Megachips Corporation | Image processor |
US10504200B2 (en) | 2014-03-13 | 2019-12-10 | Verance Corporation | Metadata acquisition using embedded watermarks |
WO2015138798A1 (en) | 2014-03-13 | 2015-09-17 | Verance Corporation | Interactive content acquisition using embedded codes |
US9639911B2 (en) | 2014-08-20 | 2017-05-02 | Verance Corporation | Watermark detection using a multiplicity of predicted patterns |
US9942602B2 (en) | 2014-11-25 | 2018-04-10 | Verance Corporation | Watermark detection and metadata delivery associated with a primary content |
WO2016086047A1 (en) | 2014-11-25 | 2016-06-02 | Verance Corporation | Enhanced metadata and content delivery using watermarks |
WO2016100916A1 (en) | 2014-12-18 | 2016-06-23 | Verance Corporation | Service signaling recovery for multimedia content using embedded watermarks |
US9886961B2 (en) | 2015-01-15 | 2018-02-06 | Gopro, Inc. | Audio watermark in a digital video |
US9877036B2 (en) | 2015-01-15 | 2018-01-23 | Gopro, Inc. | Inter frame watermark in a digital video |
US9418396B2 (en) | 2015-01-15 | 2016-08-16 | Gopro, Inc. | Watermarking digital images to increase bit depth |
US10257567B2 (en) | 2015-04-30 | 2019-04-09 | Verance Corporation | Watermark based content recognition improvements |
US20170006219A1 (en) | 2015-06-30 | 2017-01-05 | Gopro, Inc. | Image stitching in a multi-camera array |
WO2017015399A1 (en) | 2015-07-20 | 2017-01-26 | Verance Corporation | Watermark-based data recovery for content with multiple alternative components |
US10044944B2 (en) | 2015-09-28 | 2018-08-07 | Gopro, Inc. | Automatic composition of video with dynamic background and composite frames selected based on foreground object criteria |
US20190132652A1 (en) | 2016-04-18 | 2019-05-02 | Verance Corporation | System and method for signaling security and database population |
US10045120B2 (en) | 2016-06-20 | 2018-08-07 | Gopro, Inc. | Associating audio with three-dimensional objects in videos |
US9749738B1 (en) | 2016-06-20 | 2017-08-29 | Gopro, Inc. | Synthesizing audio corresponding to a virtual microphone location |
US10313686B2 (en) | 2016-09-20 | 2019-06-04 | Gopro, Inc. | Apparatus and methods for compressing video content using adaptive projection selection |
US10134114B2 (en) | 2016-09-20 | 2018-11-20 | Gopro, Inc. | Apparatus and methods for video image post-processing for segmentation-based interpolation |
US10003768B2 (en) | 2016-09-28 | 2018-06-19 | Gopro, Inc. | Apparatus and methods for frame interpolation based on spatial considerations |
KR101716318B1 (ko) * | 2016-12-29 | 2017-03-14 | (주)다올소프트 | Jpeg 파일 포맷의 영상에 대한 강인한 가역 정보은닉 방법 및 장치 |
JP7058946B2 (ja) * | 2017-04-28 | 2022-04-25 | キヤノン株式会社 | 情報処理装置、情報処理システム、情報処理方法及びプログラム |
US10489897B2 (en) | 2017-05-01 | 2019-11-26 | Gopro, Inc. | Apparatus and methods for artifact detection and removal using frame interpolation techniques |
WO2018237191A1 (en) | 2017-06-21 | 2018-12-27 | Verance Corporation | ACQUISITION AND TREATMENT OF METADATA BASED ON A WATERMARK |
CN110381375B (zh) * | 2018-04-13 | 2022-06-21 | 武汉斗鱼网络科技有限公司 | 一种确定盗刷数据的方法、客户端及服务器 |
US11468149B2 (en) | 2018-04-17 | 2022-10-11 | Verance Corporation | Device authentication in collaborative content screening |
CN108681983B (zh) * | 2018-05-07 | 2023-10-20 | 饶四强 | 一种防止拍摄造假的方法 |
CN108648761B (zh) * | 2018-05-10 | 2023-05-09 | 北京泛融科技有限公司 | 一种在音频数字水印中嵌入区块链账本的方法 |
KR102637177B1 (ko) * | 2018-05-23 | 2024-02-14 | 세종대학교산학협력단 | 워터마크 기반의 이미지 무결성 검증 방법 및 장치 |
KR102099600B1 (ko) * | 2018-09-07 | 2020-05-15 | 동명대학교산학협력단 | 의료 이미지의 워터마크 삽입 방법 |
CN111147864B (zh) * | 2018-11-06 | 2022-07-05 | 京东科技控股股份有限公司 | 在图片中嵌入信息的方法和装置 |
CN109447889B (zh) * | 2018-11-22 | 2023-05-26 | 央视国际网络无锡有限公司 | 一种实现隐藏式视频数字水印的方法 |
KR102646952B1 (ko) * | 2019-01-04 | 2024-03-14 | 주식회사 마크애니 | 비디오 콘텐츠에 대한 위변조를 방지하기 위한 부가데이터를 검출하여 디스플레이하는 장치, 방법 및 시스템, 상기 디스플레이 장치와 연동하는 재생장치, 상기 장치의 재생방법 |
US11308572B1 (en) * | 2019-01-16 | 2022-04-19 | Xilinx, Inc. | Method and system for invisible watermarking of images and video |
CN112040241B (zh) * | 2019-06-04 | 2022-08-05 | 山东华软金盾软件股份有限公司 | 一种基于深度学习的视频图像透明水印嵌入提取方法 |
KR102412135B1 (ko) * | 2019-08-01 | 2022-06-23 | 네이버 주식회사 | 워터마크의 삽입을 위한 영상 합성 장치 및 방법 |
CN110930288B (zh) * | 2019-11-21 | 2023-09-08 | 上海鹰瞳医疗科技有限公司 | 在眼底图像中添加和提取水印的方法及设备 |
US11722741B2 (en) | 2021-02-08 | 2023-08-08 | Verance Corporation | System and method for tracking content timeline in the presence of playback rate changes |
KR102423036B1 (ko) * | 2021-07-05 | 2022-07-20 | 주식회사 누리플랜 | Kcmvp가 적용된 카메라 보안 감시 시스템 및 그 방법 |
CN117057971B (zh) * | 2023-10-07 | 2023-12-29 | 湖北微模式科技发展有限公司 | 一种基于亮度收缩校准的jpeg图像半脆弱水印算法及装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6064764A (en) * | 1998-03-30 | 2000-05-16 | Seiko Epson Corporation | Fragile watermarks for detecting tampering in images |
KR100334730B1 (ko) | 1999-12-21 | 2002-05-04 | 류정열 | 자동차 도어의 늘어남 방지장치 |
US7822969B2 (en) * | 2001-04-16 | 2010-10-26 | Digimarc Corporation | Watermark systems and methods |
US7639599B2 (en) * | 2001-11-16 | 2009-12-29 | Civolution B.V. | Embedding supplementary data in an information signal |
JP2005521909A (ja) * | 2002-03-28 | 2005-07-21 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | マルチメディア信号の透かしに関するウィンドウ・シェーピング関数 |
US7313696B2 (en) * | 2002-07-22 | 2007-12-25 | Xerox Corporation | Method for authentication of JPEG image data |
-
2003
- 2003-04-25 KR KR20030026248A patent/KR100624751B1/ko active IP Right Grant
-
2004
- 2004-04-22 US US10/830,633 patent/US7707422B2/en active Active
- 2004-04-23 JP JP2004128594A patent/JP4294538B2/ja not_active Expired - Lifetime
-
2010
- 2010-04-13 US US12/759,633 patent/US20100266157A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
KR20040092703A (ko) | 2004-11-04 |
US7707422B2 (en) | 2010-04-27 |
JP2004328747A (ja) | 2004-11-18 |
US20100266157A1 (en) | 2010-10-21 |
US20040258243A1 (en) | 2004-12-23 |
KR100624751B1 (ko) | 2006-09-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4294538B2 (ja) | 映像に透かしを埋め込む方法及び該方法を用いたデジタルビデオ記録装置 | |
Noorkami et al. | Compressed-domain video watermarking for H. 264 | |
JP5300741B2 (ja) | ビデオ透かし入れのための方法および装置 | |
JP2004032459A (ja) | 監視システム、およびこれに用いるコントローラと監視端末 | |
EP1384376A2 (en) | Digital video protection for authenticity verification | |
Shahid et al. | Considering the reconstruction loop for data hiding of intra-and inter-frames of H. 264/AVC | |
JP2006115459A (ja) | Svcの圧縮率を高めるシステムおよび方法 | |
Patel et al. | Study and investigation of video steganography over uncompressed and compressed domain: a comprehensive review | |
Horng et al. | A low cost fragile watermarking scheme in H. 264/AVC compressed domain | |
Liu et al. | Secure steganography in compressed video bitstreams | |
Yang et al. | A high bitrate information hiding algorithm for digital video content under H. 264/AVC compression | |
US6665420B1 (en) | Message authentication code with improved error tolerance | |
JP2004241869A (ja) | 透かし埋め込み及び画像圧縮部 | |
JP2005229188A (ja) | 映像通信装置および映像通信方法 | |
WO2015028098A1 (en) | Method and system for embedding information and authenticating a h.264 video using a digital watermark | |
KR100538414B1 (ko) | 디씨티 기반의 영상 압축 시스템을 위한 데이터 위변조방지 방법 | |
US10134100B2 (en) | Watermark embedding apparatus and method through image structure conversion | |
Dubois et al. | Smart selective encryption of H. 264/AVC videos using confidentiality metrics | |
JP2006246351A (ja) | 画像符号化装置および画像復号化装置 | |
KR20070058637A (ko) | 순열 지연 | |
Ait Sadi et al. | Content fragile watermarking for H. 264/AVC video authentication | |
Houria et al. | Hybrid watermark fingerprint algorithm for h. 264 compressed video authentication | |
Gujjunoori et al. | Reversible Data Embedding for MPEG-4 Video Using Middle Frequency DCT Coefficients. | |
JP4822340B2 (ja) | カラー画像の圧縮符号化方法、復号化方法、カラー画像の圧縮符号化装置および復号化装置 | |
Meerwald et al. | Toward robust watermarking of scalable video |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20070313 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20070613 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20071225 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080325 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20080527 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080825 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20081029 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20090324 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20090408 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120417 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 4294538 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130417 Year of fee payment: 4 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140417 Year of fee payment: 5 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term |