ES2174033T3 - Codificacion de transformaciones de segmentos de imagenes conformadas arbitrariamente. - Google Patents
Codificacion de transformaciones de segmentos de imagenes conformadas arbitrariamente.Info
- Publication number
- ES2174033T3 ES2174033T3 ES96308597T ES96308597T ES2174033T3 ES 2174033 T3 ES2174033 T3 ES 2174033T3 ES 96308597 T ES96308597 T ES 96308597T ES 96308597 T ES96308597 T ES 96308597T ES 2174033 T3 ES2174033 T3 ES 2174033T3
- Authority
- ES
- Spain
- Prior art keywords
- transformation
- coefficient
- coefficients
- selection
- block
- 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
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
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/649—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding the transform being applied to non rectangular image segments
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Image Processing (AREA)
Abstract
SE SUMINISTRA UN APARATO DE CODIFICACION DE TRANSFORMACION PARA UN BLOQUE QUE INCLUYE UN CONTORNO DE UN OBJETO QUE TIENE UNA CIERTA FORMA, QUE INCLUYE UN TRANSFORMADOR (31) PARA TRANSFORMAR UN BLOQUE DE ENTRADA Y EXTRAER LOS COEFICIENTES DE TRANSFORMACION, UN SELECTOR DE COEFICIENTES DE TRANSFORMACION (32) PARA SELECCIONAR Y EXTRAER COEFICIENTES DE TRANSFORMACION QUE USA LOS COEFICIENTES DE TRANSFORMACION Y EL BLOQUE DE ENTRADA, UN TRANSFORMADOR INVERSO (33) PARA TRANSFORMAR INVERSAMENTE LOS COEFICIENTES DE TRANSFORMACION SELECCIONADOS POR LOS MEDIOS DE SELECCION DE LOS COEFICIENTES DE TRANSFORMACION Y EXTRAER UN BLOQUE REGENERADO, UN CODIFICADOR (34) PARA LA CODIFICACION DE LONGITUD VARIABLE DE LOS COEFICIENTES DE SELECCION SELECCIONADOS POR LOS MEDIOS DE SELECCION DE LOS COEFICIENTES DE TRANSFORMACION (32) Y UN CONTROLADOR DE REPETICION (32) PARA CALCULAR UN ERROR EQUITATIVO MEDIO DEL BLOQUE DE ENTRADA Y DEL BLOQUE REGENERADO, COMPARANDO EL RESULTADO CALCULADO CON UN VALOR DE REFERENCIA PREDETERMINADO Y QUE DETERMINANDO SI LA SELECCION DE COEFICIENTES ES O NO CONTINUADA. EL APARATO DE CODIFICACION DE TRANSFORMACION PARA UN BLOQUE QUE INCLUYE UN CONTORNO DE UN OBJETO QUE TIENE UNA CIERTA FORMA SELECCIONA UN COEFICIENTE DE SELECCION QUE MAXIMIZA UNA RELACION DEL ERROR EQUITATIVO MEDIO {DL}MSE(K) QUE SE DISMINUYE SEGUN AL COEFICIENTE DE SELECCION AÑADIDO (COEFICIENTE K-TH), CON RESPECTO A LA CANTIDAD DE {DL}MSE(K) DE VARIACION DE LA CANTIDAD DE BITS QUE SE INCREMENTA SEGUN EL COEFICIENTE AÑADIDO (COEFICIENTE K-TH) CUANDO SE SELECCIONA UN COEFICIENTE DE TRANSFORMACION, PARA MEJORAR DE ESA MANERA UNA CALIDAD ORIGINAL DE IMAGEN Y REDUCIR LA CANTIDAD DE LOS BITS NECESARIOS.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR19950044958 | 1995-11-29 | ||
KR1019960049253A KR100228671B1 (ko) | 1995-11-29 | 1996-10-28 | 임의 형태 물체의 경계를 포함하는 블록의 변환 부호화 장치 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2174033T3 true ES2174033T3 (es) | 2002-11-01 |
Family
ID=26631438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES96308597T Expired - Lifetime ES2174033T3 (es) | 1995-11-29 | 1996-11-28 | Codificacion de transformaciones de segmentos de imagenes conformadas arbitrariamente. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5715004A (es) |
EP (1) | EP0783230B1 (es) |
JP (1) | JP3094390B2 (es) |
CN (1) | CN1104141C (es) |
DE (1) | DE69619644T2 (es) |
ES (1) | ES2174033T3 (es) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6160503A (en) * | 1992-02-19 | 2000-12-12 | 8×8, Inc. | Deblocking filter for encoder/decoder arrangement and method with divergence reduction |
US5828784A (en) * | 1992-07-13 | 1998-10-27 | Hitachi Denshi Kabushiki Kaisha | Data coding method and apparatus using a plurality of blocks of different length |
KR20140071809A (ko) * | 2012-12-04 | 2014-06-12 | 삼성전자주식회사 | 비디오 데이터의 처리 방법 및 장치 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4189748A (en) * | 1977-08-23 | 1980-02-19 | Northrop Corporation | Video bandwidth reduction system using a two-dimensional transformation, and an adaptive filter with error correction |
US5038390A (en) * | 1990-06-05 | 1991-08-06 | Kabushiki Kaisha Toshiba | Method of transform data compression using save-maps |
JP2878796B2 (ja) * | 1990-07-03 | 1999-04-05 | 国際電気株式会社 | 音声符号化器 |
JPH04368088A (ja) * | 1991-06-14 | 1992-12-21 | Kokusai Denshin Denwa Co Ltd <Kdd> | 動画像直交変換方式における交流成分の適応符号化方式 |
US5422963A (en) * | 1993-10-15 | 1995-06-06 | At&T Corp. | Block transform coder for arbitrarily shaped image segments |
KR970009408B1 (ko) * | 1994-01-18 | 1997-06-13 | 대우전자 주식회사 | 인터/인트라 테이블 선택 회로 |
EP0699003A4 (en) * | 1994-02-15 | 1999-10-06 | Sony Corp | METHOD AND DEVICE FOR ENCODING SIGNAL SIGNALS |
-
1996
- 1996-11-27 JP JP31657196A patent/JP3094390B2/ja not_active Expired - Fee Related
- 1996-11-27 US US08/757,871 patent/US5715004A/en not_active Expired - Lifetime
- 1996-11-28 EP EP19960308597 patent/EP0783230B1/en not_active Expired - Lifetime
- 1996-11-28 ES ES96308597T patent/ES2174033T3/es not_active Expired - Lifetime
- 1996-11-28 DE DE1996619644 patent/DE69619644T2/de not_active Expired - Lifetime
- 1996-11-29 CN CN96123416A patent/CN1104141C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH09224248A (ja) | 1997-08-26 |
EP0783230B1 (en) | 2002-03-06 |
US5715004A (en) | 1998-02-03 |
DE69619644D1 (de) | 2002-04-11 |
EP0783230A3 (en) | 1999-10-20 |
EP0783230A2 (en) | 1997-07-09 |
CN1104141C (zh) | 2003-03-26 |
JP3094390B2 (ja) | 2000-10-03 |
CN1159684A (zh) | 1997-09-17 |
DE69619644T2 (de) | 2002-08-01 |
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Legal Events
Date | Code | Title | Description |
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FG2A | Definitive protection |
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