KR20010012213A - 신호에 보조 데이터를 삽입하기 위한 방법 및 장치 - Google Patents
신호에 보조 데이터를 삽입하기 위한 방법 및 장치 Download PDFInfo
- Publication number
- KR20010012213A KR20010012213A KR1019997010162A KR19997010162A KR20010012213A KR 20010012213 A KR20010012213 A KR 20010012213A KR 1019997010162 A KR1019997010162 A KR 1019997010162A KR 19997010162 A KR19997010162 A KR 19997010162A KR 20010012213 A KR20010012213 A KR 20010012213A
- Authority
- KR
- South Korea
- Prior art keywords
- watermark
- vector
- information signal
- auxiliary data
- predetermined
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
- G06T1/0021—Image watermarking
- G06T1/005—Robust watermarking, e.g. average attack or collusion attack resistant
- G06T1/0071—Robust watermarking, e.g. average attack or collusion attack resistant using multiple or alternating watermarks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
- H04H20/30—Arrangements for simultaneous broadcast of plural pieces of information by a single channel
- H04H20/31—Arrangements for simultaneous broadcast of plural pieces of information by a single channel using in-band signals, e.g. subsonic or cue signal
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H2201/00—Aspects of broadcast communication
- H04H2201/50—Aspects of broadcast communication characterised by the use of watermarks
-
- 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
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Editing Of Facsimile Originals (AREA)
- Image Processing (AREA)
- Television Systems (AREA)
- Burglar Alarm Systems (AREA)
- Image Analysis (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Holo Graphy (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Traffic Control Systems (AREA)
- Storage Device Security (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
- Television Signal Processing For Recording (AREA)
- Stereo-Broadcasting Methods (AREA)
Abstract
Description
Claims (15)
- 정보 신호(P)에 보조 데이터(K)를 삽입하기 위한 방법으로,하나 이상의 소정의 워터마크 패턴(W2)을 상기 보조 데이터(K)를 표시하는 벡터(k)상에서 복수회 시프트하는 단계와,상기 정보 신호에 상기 시프트된 워터마크(W2')를 삽입하는 단계를 포함하는 방법.
- 제 1 항에 있어서, 상기 벡터(k)의 기준을 제공하도록 상기 소정의 워터마크(W2)를 추가 삽입하는 단계를 포함하는 방법.
- 제 2 항에 있어서, 상기 소정의 워터마크 패턴(W2)은 상이한 부호로 삽입되는 방법.
- 제 1 항에 있어서, 상기 벡터(k)의 기준을 제공하도록 상기 소정의 워터마크(W1)를 추가 삽입하는 단계를 포함하는 방법.
- 제 1 항에 있어서, 삽입된 워터마크는 정보 신호의 크기 보다 작은 크기를 가지며, 상기 삽입 단계는 정보 신호의 길이상에서 상기 워터 마크를 반복하는 것을 포함하는 방법.
- 정보 신호에서 보조 데이터를 검출하기 위한 방법으로,하나 이상의 삽입된 워터마크(W2')를 검출하는 단계와,소정의 워터마크(W2)에 대해서 검출된 각각의 워터마크(W2')가 시프트되는 벡터(k)를 결정하는 단계와,상기 벡터로부터 상기 보조 데이터를 검색하는 단계를 포함하는 방법.
- 제 6 항에 있어서, 상기 삽입된 워터마크들중 하나는 소정의 워터마크 패턴(W2)이며, 상기 소정의 워터마크의 부호는 상기 벡터의 기준을 제공하는 방법.
- 제 6 항에 있어서, 상기 검출 단계는 상기 벡터의 기준을 제공하도록 삽입된 워터마크(W1)를 추가 삽입하는 것을 포함하는 방법.
- 제 6 항에 있어서, 삽입된 워터마크(W2')를 검출하는 단계는 상기 소정의 워터마크(W2)의 시프트된 변형과 정보 신호 사이의 상관관계를 결정하는 것을 포함하며, 상기 상관관계가 소정의 임계를 초과하는 시프트된 변형으로 벡터가 정의되는 방법.
- 제 6 항에 있어서, 상기 삽입된 워터마크(W2')는 정보 신호의 크기 보다 작은 크기를 가지며, 삽입된 워터마크를 갖는 정보를 상기 작은 크기를 갖는 부신호로 분할하고, 상기 부신호를 가산하며, 삽입된 워터마크(W2')가 동일 크기를 갖는 소정의 워터마크(W2)에 대해서 시프트되는 벡터(k)를 결정하는 단계를 포함하는 방법.
- 정보 신호(P)에 보조 데이터(K)를 삽입하기 위한 장치로서,하나 이상의 소정의 워터마크 패턴(W2)을 상기 보조 데이터(K)를 표시하는벡터(k)상에서 복수회 시프트하는 수단과,상기 정보 신호에 상기 시프트된 워터마크(W2')를 삽입하는 수단을 포함하는 장치.
- 정보 신호에서 보조 데이터를 검출하기 위한 장치로서하나 이상의 삽입된 워터마크(W2')를 검출하는 수단(24-29)과,소정의 워터마크(W2)에 대해서 검출된 각각의 워터마크(W2')가 시프트되는 벡터(k)를 검출하는 수단(24-28)과,상기 벡터로부터 상기 보조 데이터를 검색하는 수단(29)을 포함하는 장치.
- 비디오 신호에 삽입된 보조 데이터에 따라서 정보 신호를 기록 및/또는 재생을 불능케하는 수단을 포함하는 정보 신호를 기록 및/또는 재생하기 위한 장치에 있어서,청구항 12항에서 청구하고 있는 바와 같이 상기 보조 데이터를 검출하기 위한 장치를 포함하는 것을 특징으로 하는 장치.
- 삽입된 워터마크(W2')의 형태로 보조 데이터(K)를 갖는 정보 신호(P)에 있어서,삽입된 워터마크는 소정의 워터 마크(W2)의 시프트된 변형이며, 소정의 워터마크가 시프트된 벡터(k)는 상기 보조 데이터를 나타내는 정보 신호
- 삽입된 워터마크(W2')의 형태로 보조 데이터(K)를 갖는 정보 신호(P)가 저장되는 기억매체(71)에 있어서,삽입된 워터마크는 소정의 워터 마크(W2)의 시프트된 변형이며, 소정의 워터마크가 시프트된 벡터(k)는 상기 보조 데이터를 나타내는 기억매체.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP98200656 | 1998-03-04 | ||
| EP98200656.1 | 1998-03-04 | ||
| PCT/IB1999/000348 WO1999045705A2 (en) | 1998-03-04 | 1999-03-02 | Embedding auxiliary data in a signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20010012213A true KR20010012213A (ko) | 2001-02-15 |
| KR100611521B1 KR100611521B1 (ko) | 2006-08-11 |
Family
ID=8233435
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019997010163A Ceased KR20010012214A (ko) | 1998-03-04 | 1999-02-18 | 워터마크 검출 방법 및 장치 |
| KR1019997010201A Expired - Lifetime KR100648845B1 (ko) | 1998-03-04 | 1999-03-02 | 워터마크 검출 |
| KR1019997010195A Expired - Lifetime KR100614425B1 (ko) | 1998-03-04 | 1999-03-02 | 워터마크 검출 방법 및 장치 |
| KR1019997010162A Expired - Lifetime KR100611521B1 (ko) | 1998-03-04 | 1999-03-02 | 신호에 보조 데이터를 삽입하기 위한 방법 및 장치 |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019997010163A Ceased KR20010012214A (ko) | 1998-03-04 | 1999-02-18 | 워터마크 검출 방법 및 장치 |
| KR1019997010201A Expired - Lifetime KR100648845B1 (ko) | 1998-03-04 | 1999-03-02 | 워터마크 검출 |
| KR1019997010195A Expired - Lifetime KR100614425B1 (ko) | 1998-03-04 | 1999-03-02 | 워터마크 검출 방법 및 장치 |
Country Status (14)
| Country | Link |
|---|---|
| US (6) | US6971011B1 (ko) |
| EP (4) | EP0981900A2 (ko) |
| JP (4) | JP2001525151A (ko) |
| KR (4) | KR20010012214A (ko) |
| CN (4) | CN1153456C (ko) |
| AT (3) | ATE381209T1 (ko) |
| AU (1) | AU2437499A (ko) |
| BR (1) | BR9904848A (ko) |
| DE (3) | DE69940375D1 (ko) |
| ES (1) | ES2297919T3 (ko) |
| ID (1) | ID23884A (ko) |
| PL (2) | PL336845A1 (ko) |
| RU (2) | RU2249308C2 (ko) |
| WO (4) | WO1999045704A2 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100556353B1 (ko) * | 2001-03-28 | 2006-03-03 | 엘지전자 주식회사 | 디지털 데이터의 워터마킹 방법 |
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- 1999-03-02 CN CNB998006904A patent/CN1166187C/zh not_active Expired - Lifetime
- 1999-03-02 PL PL99336845A patent/PL336845A1/xx not_active Application Discontinuation
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- 1999-03-02 AT AT99903872T patent/ATE422282T1/de not_active IP Right Cessation
- 1999-03-02 EP EP99903863A patent/EP0981901B1/en not_active Expired - Lifetime
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- 1999-03-02 ID IDW991309A patent/ID23884A/id unknown
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2002
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100556353B1 (ko) * | 2001-03-28 | 2006-03-03 | 엘지전자 주식회사 | 디지털 데이터의 워터마킹 방법 |
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