KR100215428B1 - B픽처의에러은폐방법 - Google Patents
B픽처의에러은폐방법 Download PDFInfo
- Publication number
- KR100215428B1 KR100215428B1 KR1019950001093A KR19950001093A KR100215428B1 KR 100215428 B1 KR100215428 B1 KR 100215428B1 KR 1019950001093 A KR1019950001093 A KR 1019950001093A KR 19950001093 A KR19950001093 A KR 19950001093A KR 100215428 B1 KR100215428 B1 KR 100215428B1
- Authority
- KR
- South Korea
- Prior art keywords
- picture
- macroblock
- error
- motion vector
- scene change
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
-
- 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
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/142—Detection of scene cut or scene change
-
- 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
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/179—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a scene or a shot
-
- 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
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using 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
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
- H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
-
- 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
- H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
- H04N19/87—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving scene cut or scene change detection in combination with video 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
- H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
- H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
- H04N19/895—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder in combination with error concealment
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Description
Claims (6)
- B픽처를 디코딩시 에러가 발생된 매크로블럭의 에러은폐를 위한 B픽처의 에러은폐방법에 있어서, 상기 B픽처를 기점으로 장면변화의 유무를 판별하는 단계; 상기 판별결과에 따라 상기 B픽처의 전방픽처 및 후방픽처중에서 상기 B픽처와 상관성이 큰 픽처를 상기 에러가 발생된 매크로블럭의 에러은폐용 동보상을 위한 예측픽처로 선택하는 단계; 상기 에러가 발생된 매크로블럭이 바로 윗행에 위치하는 타매크로블럭에서 동벡터를 취하는 단계; 및 상기 선택된 예측픽처내의 상기 취해진 동벡터가 지정하는 매크로블럭을 사용하여 상기 에러가 발생된 매크로블럭을 동보상하는 단계를 포함하는 것을 특징으로 하는 B픽처의 에러은폐방법.
- 제 1 항에 있어서, 상기 장면변화의 유무를 판별하는 단계는 에러가 발생된 매크로블럭의 윗행에 위치하는 타매크로블럭들에 부가된 파라메타중 매크로블럭_포워드 또는 매크로블럭_백워드의 설정값이 1인 것을 각각 계수하는 단계를 포함하는 것을 특징으로 하는 B픽처의 에러은폐방법.
- 제 2 항에 있어서, 상기 파라메타와 계수단계는 매크로블럭_포워드의 계수값이 매크로블럭_백워드의 계수값보다 크거나 동수이면 장면변화가 발생하지 않은 것으로 판별하며 매크로블럭_ 포워드의 계수값이 매크로블럭_백워드의 계수값보다 작으면 장면변화가 발생한 것으로 판별하는 것을 특징으로 하는 B픽처의 에러은폐방법.
- 제 1 항에 있어서, 상기 예측픽처의 선택단계는 B픽처를 기점으로 장면변화가 없으면 전방픽처를 예측픽처로 선택하며, B픽처를 기점으로 장면변화가 있으며 후방픽처를 예측픽처로 선택학는 것을 특징으로 하는 B픽처의 에러은폐방법.
- 제 1 항에 있어서, 상기 타매크로블럭에서 동벡터를 취하는 단계는 타매크로블럭과 인접하며 전/후에 위치하는 인접매크로블럭들의 동벡터를 산술평균한 값을 에러가 발생한 매크로블럭의 동벡터로 설정하는 것을 특징으로 하는 B픽처의 에러은폐방법.
- 제 5 항에 있어서, 상기 타매크로블럭에서 동벡터를 취하는 단계는 인접매크로블럭중 어느 하나가 인트라타입의 매크로블럭이면 에러가 발생한 매크로블럭의 동벡터를 0으로 설정하는 것을 특징으로 하는 B픽처의 에러은폐방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950001093A KR100215428B1 (ko) | 1995-01-23 | 1995-01-23 | B픽처의에러은폐방법 |
US08/588,812 US5727088A (en) | 1995-01-23 | 1996-01-19 | Error concealment method in a B-picture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950001093A KR100215428B1 (ko) | 1995-01-23 | 1995-01-23 | B픽처의에러은폐방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960030703A KR960030703A (ko) | 1996-08-17 |
KR100215428B1 true KR100215428B1 (ko) | 1999-08-16 |
Family
ID=19407096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950001093A Expired - Fee Related KR100215428B1 (ko) | 1995-01-23 | 1995-01-23 | B픽처의에러은폐방법 |
Country Status (2)
Country | Link |
---|---|
US (1) | US5727088A (ko) |
KR (1) | KR100215428B1 (ko) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5974184A (en) * | 1997-03-07 | 1999-10-26 | General Instrument Corporation | Intra-macroblock DC and AC coefficient prediction for interlaced digital video |
SG65064A1 (en) * | 1997-04-09 | 1999-05-25 | Matsushita Electric Ind Co Ltd | Image predictive decoding method image predictive decoding apparatus image predictive coding method image predictive coding apparatus and data storage media |
GB2343321B (en) | 1998-11-02 | 2003-03-26 | Nokia Mobile Phones Ltd | Error concealment in a video signal |
KR100587280B1 (ko) * | 1999-01-12 | 2006-06-08 | 엘지전자 주식회사 | 오류 은폐방법 |
US6611530B1 (en) | 1999-09-21 | 2003-08-26 | Hewlett-Packard Development Company, L.P. | Video communication using multiple streams |
GB9928022D0 (en) * | 1999-11-26 | 2000-01-26 | British Telecomm | Video coding and decording |
GB2362533A (en) * | 2000-05-15 | 2001-11-21 | Nokia Mobile Phones Ltd | Encoding a video signal with an indicator of the type of error concealment used |
MXPA05000559A (es) * | 2002-07-15 | 2005-04-19 | Nokia Corp | Metodo para ocultamiento de errores en secuencias de video. |
EP1387587A1 (en) * | 2002-07-30 | 2004-02-04 | Matsushita Electric Industrial Co., Ltd. | Image encoder and decoder with error concealment of motion vector losses |
KR100736041B1 (ko) | 2005-06-30 | 2007-07-06 | 삼성전자주식회사 | 에러 은닉 방법 및 장치 |
EP1739974B1 (en) * | 2005-06-30 | 2010-08-11 | Samsung Electronics Co., Ltd. | Error concealment method and apparatus |
FR2898459B1 (fr) * | 2006-03-08 | 2008-09-05 | Canon Kk | Procede et dispositif de reception d'images ayant subi des pertes en cours de transmission |
US20080285651A1 (en) * | 2007-05-17 | 2008-11-20 | The Hong Kong University Of Science And Technology | Spatio-temporal boundary matching algorithm for temporal error concealment |
CN102194208B (zh) * | 2011-05-26 | 2013-01-16 | 西安理工大学 | 一种基于图像签名的图像篡改检测与篡改定位方法 |
CN102307304B (zh) * | 2011-09-16 | 2013-04-03 | 北京航空航天大学 | 基于图像分割的立体视频右图像整帧丢失的错误隐藏方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5150210A (en) * | 1988-12-26 | 1992-09-22 | Canon Kabushiki Kaisha | Image signal restoring apparatus |
US5243428A (en) * | 1991-01-29 | 1993-09-07 | North American Philips Corporation | Method and apparatus for concealing errors in a digital television |
US5455629A (en) * | 1991-02-27 | 1995-10-03 | Rca Thomson Licensing Corporation | Apparatus for concealing errors in a digital video processing system |
KR0125581B1 (ko) * | 1991-07-24 | 1998-07-01 | 구자홍 | 디지탈 영상신호의 에러수정 시스템 |
US5247363A (en) * | 1992-03-02 | 1993-09-21 | Rca Thomson Licensing Corporation | Error concealment apparatus for hdtv receivers |
-
1995
- 1995-01-23 KR KR1019950001093A patent/KR100215428B1/ko not_active Expired - Fee Related
-
1996
- 1996-01-19 US US08/588,812 patent/US5727088A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR960030703A (ko) | 1996-08-17 |
US5727088A (en) | 1998-03-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0895694B1 (en) | System and method for creating trick play video streams from a compressed normal play video bitstream | |
US6285715B1 (en) | Methods and apparatus for error concealment while decoding a coded video bit stream | |
US6507615B1 (en) | Video signal processing apparatus and video signal processing method | |
JP3510628B2 (ja) | ビデオ圧縮/圧縮解除システムのフィールド除去装置 | |
US5633682A (en) | Stereoscopic coding system | |
EP1044566B1 (en) | Improved video coding and decoding using adaptive coding of block parameters for coded/uncoded blocks | |
US7295757B2 (en) | Advancing playback of video data based on parameter values of video data | |
EP0869682B1 (en) | Decoding method of moving image signal, and decoding apparatus of moving image signal using the same | |
KR100261072B1 (ko) | 디지털 신호처리시스템 | |
US7227900B2 (en) | Differential encoding | |
KR100215428B1 (ko) | B픽처의에러은폐방법 | |
US5786858A (en) | Method of encoding image signal, apparatus for encoding image signal, method of decoding image signal, apparatus for decoding image signal, and image signal recording medium | |
US20040202249A1 (en) | Real-time MPEG video encoding method of maintaining synchronization between video and audio | |
US5739862A (en) | Reverse playback of MPEG video | |
US6421386B1 (en) | Method for coding digital moving video including gray scale shape information | |
US7636482B1 (en) | Efficient use of keyframes in video compression | |
KR0185932B1 (ko) | 고속재생을 위한 비디오데이타 복호방법 및 그 장치 | |
KR20040069208A (ko) | 비디오 선명도 강화의 시간적인 일관성 개선 | |
US5991445A (en) | Image processing apparatus | |
US7006570B2 (en) | Video signal coding method and video signal encoder | |
JPH08251597A (ja) | 動画像符号化/復号化装置 | |
JPH1084545A (ja) | ディジタルビデオ信号の符号化方法及び装置 | |
KR20040086400A (ko) | 비디오 이미지 처리 방법 | |
JP3235917B2 (ja) | 画像記録再生装置 | |
JP2004015351A (ja) | 符号化装置及び方法、プログラム、記録媒体 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19950123 |
|
A201 | Request for examination | ||
PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 19951107 Comment text: Request for Examination of Application Patent event code: PA02011R01I Patent event date: 19950123 Comment text: Patent Application |
|
PG1501 | Laying open of application | ||
E902 | Notification of reason for refusal | ||
PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 19981113 Patent event code: PE09021S01D |
|
E701 | Decision to grant or registration of patent right | ||
PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 19990416 |
|
GRNT | Written decision to grant | ||
PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 19990524 Patent event code: PR07011E01D |
|
PR1002 | Payment of registration fee |
Payment date: 19990525 End annual number: 3 Start annual number: 1 |
|
PG1601 | Publication of registration | ||
PR1001 | Payment of annual fee |
Payment date: 20020429 Start annual number: 4 End annual number: 4 |
|
PR1001 | Payment of annual fee |
Payment date: 20030512 Start annual number: 5 End annual number: 5 |
|
PR1001 | Payment of annual fee |
Payment date: 20040429 Start annual number: 6 End annual number: 6 |
|
PR1001 | Payment of annual fee |
Payment date: 20050429 Start annual number: 7 End annual number: 7 |
|
PR1001 | Payment of annual fee |
Payment date: 20060508 Start annual number: 8 End annual number: 8 |
|
PR1001 | Payment of annual fee |
Payment date: 20070427 Start annual number: 9 End annual number: 9 |
|
FPAY | Annual fee payment |
Payment date: 20080429 Year of fee payment: 10 |
|
PR1001 | Payment of annual fee |
Payment date: 20080429 Start annual number: 10 End annual number: 10 |
|
LAPS | Lapse due to unpaid annual fee | ||
PC1903 | Unpaid annual fee |
Termination category: Default of registration fee Termination date: 20100410 |