MX9704785A - Metodo y aparato para codificar señales digitales de video. - Google Patents
Metodo y aparato para codificar señales digitales de video.Info
- Publication number
- MX9704785A MX9704785A MX9704785A MX9704785A MX9704785A MX 9704785 A MX9704785 A MX 9704785A MX 9704785 A MX9704785 A MX 9704785A MX 9704785 A MX9704785 A MX 9704785A MX 9704785 A MX9704785 A MX 9704785A
- Authority
- MX
- Mexico
- Prior art keywords
- pictures
- scene
- image
- encoding
- digital signals
- Prior art date
Links
Classifications
-
- 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
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/103—Selection of coding mode or of prediction mode
- H04N19/107—Selection of coding mode or of prediction mode between spatial and temporal predictive coding, e.g. picture refresh
-
- 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
- H04N19/136—Incoming video signal characteristics or properties
- H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
-
- 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
- H04N19/17—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 an image region, e.g. an object
- H04N19/172—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 an image region, e.g. an object the region being a picture, frame or field
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Para la radiodifusion de television digital futura y los servicios de comunicaciones interactivos asociados con la misma, los datos de video deben ser enormemente reducidos en términos de su volumen de datos a través de dispositivos de codificacion adecuados. Un método de codificacion proporcionado para esto es el método normal MPEG2. Si, durante la codificacion, ocurre un cambio en la escena de imagen dentro de grupos de imágenes sucesivos, no existe ninguna base racional para la prediccion de los cuadros B y P para el grupo de imágenes real. Como resultado, el resultado de reconstruccion en el decodificador permanecerá insatisfactorio. De acuerdo con la invencion, tales cambios de escena son detectados y la primera imagen de la nueva escena es codificada entre cuadros.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19626108A DE19626108A1 (de) | 1996-06-28 | 1996-06-28 | Verfahren und Vorrichtung zur Codierung von digitalen Bildsignalen |
Publications (1)
Publication Number | Publication Date |
---|---|
MX9704785A true MX9704785A (es) | 1997-12-31 |
Family
ID=7798375
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX9704785A MX9704785A (es) | 1996-06-28 | 1997-06-25 | Metodo y aparato para codificar señales digitales de video. |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0831650A3 (es) |
JP (1) | JPH1084545A (es) |
KR (1) | KR980007748A (es) |
CN (1) | CN1171017A (es) |
BR (1) | BR9703787A (es) |
CA (1) | CA2206454A1 (es) |
DE (1) | DE19626108A1 (es) |
ID (1) | ID17033A (es) |
MX (1) | MX9704785A (es) |
ZA (1) | ZA975424B (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19806913A1 (de) * | 1998-02-19 | 1999-08-26 | Cit Alcatel | Verfahren zum Generieren einer Einsprungstelle in einen Bilddatenstrom und Vorrichtung zur Durchführung des Verfahrens |
JP2005026747A (ja) * | 2003-06-30 | 2005-01-27 | Matsushita Electric Ind Co Ltd | フィルタ処理装置、画像符号化装置及び方法 |
CN100379283C (zh) * | 2004-04-29 | 2008-04-02 | 明基电通股份有限公司 | 动态判定视频数据以对其编码的方法及视频传送装置 |
JP4541825B2 (ja) * | 2004-10-15 | 2010-09-08 | キヤノン株式会社 | 動画像符号化装置及びその制御方法 |
CN100414999C (zh) * | 2005-03-07 | 2008-08-27 | 明基电通股份有限公司 | 处理视讯信号的方法及装置 |
CN100471273C (zh) * | 2006-07-17 | 2009-03-18 | 四川长虹电器股份有限公司 | 数字视频无线传输系统 |
EP2107811A1 (en) * | 2008-03-31 | 2009-10-07 | British Telecmmunications public limited campany | Encoder |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3338460B2 (ja) * | 1991-05-09 | 2002-10-28 | ソニー株式会社 | 映像信号符号化装置及び映像信号符号化方法 |
WO1992021210A1 (en) * | 1991-05-23 | 1992-11-26 | Nippon Hoso Kyokai | Method for detecting moving vector and apparatus therefor, and system for processing image signal using the apparatus |
AU657510B2 (en) * | 1991-05-24 | 1995-03-16 | Apple Inc. | Improved image encoding/decoding method and apparatus |
US5488482A (en) * | 1992-01-29 | 1996-01-30 | Mitsubishi Denki Kabushiki Kaisha | High-efficiency encoder and video information recording/reproducing apparatus |
JP3093494B2 (ja) * | 1992-11-18 | 2000-10-03 | 株式会社東芝 | 多様性信号処理装置 |
US5614952A (en) * | 1994-10-11 | 1997-03-25 | Hitachi America, Ltd. | Digital video decoder for decoding digital high definition and/or digital standard definition television signals |
BE1007807A3 (nl) * | 1993-11-30 | 1995-10-24 | Philips Electronics Nv | Inrichting voor het coderen van een videosignaal. |
US5592226A (en) * | 1994-01-26 | 1997-01-07 | Btg Usa Inc. | Method and apparatus for video data compression using temporally adaptive motion interpolation |
US5734419A (en) * | 1994-10-21 | 1998-03-31 | Lucent Technologies Inc. | Method of encoder control |
JP3191583B2 (ja) * | 1994-12-12 | 2001-07-23 | ソニー株式会社 | 情報復号化装置 |
US5508750A (en) * | 1995-02-03 | 1996-04-16 | Texas Instruments Incorporated | Encoding data converted from film format for progressive display |
-
1996
- 1996-06-28 DE DE19626108A patent/DE19626108A1/de not_active Withdrawn
-
1997
- 1997-05-28 ID IDP971784A patent/ID17033A/id unknown
- 1997-05-29 CA CA002206454A patent/CA2206454A1/en not_active Abandoned
- 1997-06-14 EP EP97109716A patent/EP0831650A3/de not_active Withdrawn
- 1997-06-19 ZA ZA975424A patent/ZA975424B/xx unknown
- 1997-06-23 KR KR1019970026484A patent/KR980007748A/ko not_active Application Discontinuation
- 1997-06-25 MX MX9704785A patent/MX9704785A/es unknown
- 1997-06-25 JP JP9168984A patent/JPH1084545A/ja active Pending
- 1997-06-27 CN CN97113972A patent/CN1171017A/zh active Pending
- 1997-06-30 BR BR9703787A patent/BR9703787A/pt active Search and Examination
Also Published As
Publication number | Publication date |
---|---|
KR980007748A (ko) | 1998-03-30 |
DE19626108A1 (de) | 1998-01-08 |
CN1171017A (zh) | 1998-01-21 |
EP0831650A3 (de) | 2000-12-06 |
JPH1084545A (ja) | 1998-03-31 |
ID17033A (id) | 1997-12-04 |
CA2206454A1 (en) | 1997-12-28 |
ZA975424B (en) | 1998-12-21 |
EP0831650A2 (de) | 1998-03-25 |
BR9703787A (pt) | 1998-11-03 |
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