ES2159593T3 - Sistema para codificar una señal de video en presencia de un gradiente de intensidad de imagen. - Google Patents

Sistema para codificar una señal de video en presencia de un gradiente de intensidad de imagen.

Info

Publication number
ES2159593T3
ES2159593T3 ES95116705T ES95116705T ES2159593T3 ES 2159593 T3 ES2159593 T3 ES 2159593T3 ES 95116705 T ES95116705 T ES 95116705T ES 95116705 T ES95116705 T ES 95116705T ES 2159593 T3 ES2159593 T3 ES 2159593T3
Authority
ES
Spain
Prior art keywords
pictures
attention
gradient
video signal
movement
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
Application number
ES95116705T
Other languages
English (en)
Inventor
Peter Paul Polit
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technicolor USA Inc
Original Assignee
Thomson Consumer Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Thomson Consumer Electronics Inc filed Critical Thomson Consumer Electronics Inc
Application granted granted Critical
Publication of ES2159593T3 publication Critical patent/ES2159593T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04N5/144—Movement detection
    • 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
    • H04N19/50—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
    • 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
    • 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
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/147—Scene change detection

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)
  • Color Television Systems (AREA)

Abstract

EN UN PROCESADOR DE SEÑALES DE VIDEO QUE INCLUYE UN SISTEMA DE COMPRESION DE DATOS DE CODIFICACION PREDICTIVA COMPENSADA DE MOVIMIENTOS, SE ANALIZAN TRES CUADROS DE IMAGENES ADYACENTES (1, 2, 3) PARA DETECTAR EL GRADIENTE DE LUMINANCIA TAL COMO EL QUE ESTA NORMALMENTE ASOCIADO A UNA ATENUACION DE LA IMAGEN. LOS CUADROS SE DIVIDEN POR IGUAL EN VARIOS SEGMENTOS (A...L). SE OBTIENE LA SUMA DE LAS DIFERENCIAS DE LOS VALORES DE LOS PIXELS ABSOLUTAS ENTRE LOS SEGMENTOS CORRESPONDIENTES DE CUADROS ADYACENTES PARA CADA UNO DE DOS PARES DE SEGMENTOS DEL CUADRO ADYACENTES (DIFF{SUB,1-2}; DIFF{SUB,2-3}). SE OBTIENE LA RELACION DE LAS DIFERENCIAS DE LOS DOS CUADROS (S) PARA CADA SEGMENTO. SE SABE QUE HAY UNA ATENUACION SI LA RELACION PERMANECE SUSTANCIALMENTE CONSTANTE EN TODAS O EN UN NUMERO PREDETERMINADO DE REGIONES. SI SE DETECTA UNA ATENUACION, A CUALQUIERA DE LOS VECTORES DE MOVIMIENTO GENERADOS POR EL CODIFICADOR DE MOVIMIENTOS SE LES ASIGNA UN VALOR CERO Y NO SE CODIFICAN.
ES95116705T 1994-10-26 1995-10-24 Sistema para codificar una señal de video en presencia de un gradiente de intensidad de imagen. Expired - Lifetime ES2159593T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/329,553 US5561477A (en) 1994-10-26 1994-10-26 System for coding a video signal in the presence of an image intensity gradient

Publications (1)

Publication Number Publication Date
ES2159593T3 true ES2159593T3 (es) 2001-10-16

Family

ID=23285946

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95116705T Expired - Lifetime ES2159593T3 (es) 1994-10-26 1995-10-24 Sistema para codificar una señal de video en presencia de un gradiente de intensidad de imagen.

Country Status (7)

Country Link
US (1) US5561477A (es)
EP (1) EP0710031B1 (es)
JP (1) JP3933718B2 (es)
KR (1) KR100361721B1 (es)
CN (1) CN1098599C (es)
DE (1) DE69521966T2 (es)
ES (1) ES2159593T3 (es)

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US6005622A (en) * 1996-09-20 1999-12-21 At&T Corp Video coder providing implicit or explicit prediction for image coding and intra coding of video
US6341144B1 (en) 1996-09-20 2002-01-22 At&T Corp. Video coder providing implicit coefficient prediction and scan adaptation for image coding and intra coding of video
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US6014183A (en) * 1997-08-06 2000-01-11 Imagine Products, Inc. Method and apparatus for detecting scene changes in a digital video stream
US7006569B1 (en) 1999-02-05 2006-02-28 Samsung Electronics Co., Ltd. Digital video processing method and apparatus thereof
CN100543772C (zh) * 1999-02-05 2009-09-23 三星电子株式会社 数字视频分析方法
WO2000051355A1 (en) * 1999-02-26 2000-08-31 Stmicroelectronics Asia Pacific Pte Ltd Method and apparatus for interlaced/non-interlaced frame determination, repeat-field identification and scene-change detection
JP3957915B2 (ja) 1999-03-08 2007-08-15 パイオニア株式会社 フェード検出装置及び情報符号化装置
US7397856B2 (en) * 2000-04-14 2008-07-08 Siemens Aktiengesellschaft Method and apparatus for storing and processing picture information of temporally successive pictures
RU2321967C2 (ru) * 2002-07-15 2008-04-10 Нокиа Корпорейшн Способ маскирования ошибок в видеопоследовательностях
JP2004179687A (ja) * 2002-11-22 2004-06-24 Toshiba Corp 動画像符号化／復号化方法及び装置
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US7889792B2 (en) * 2003-12-24 2011-02-15 Apple Inc. Method and system for video encoding using a variable number of B frames
US7492820B2 (en) * 2004-02-06 2009-02-17 Apple Inc. Rate control for video coder employing adaptive linear regression bits modeling
US7453938B2 (en) * 2004-02-06 2008-11-18 Apple Inc. Target bitrate estimator, picture activity and buffer management in rate control for video coder
US7869503B2 (en) 2004-02-06 2011-01-11 Apple Inc. Rate and quality controller for H.264/AVC video coder and scene analyzer therefor
US7986731B2 (en) * 2004-02-06 2011-07-26 Apple Inc. H.264/AVC coder incorporating rate and quality controller
US7519229B2 (en) * 2004-03-30 2009-04-14 Apple, Inc. Video coding system providing separate coding chains for dynamically selected small-size or full-size playback
US20050286629A1 (en) * 2004-06-25 2005-12-29 Adriana Dumitras Coding of scene cuts in video sequences using non-reference frames
FR2887731A1 (fr) 2005-06-23 2006-12-29 Nextream France Sa Methode et dispositif de detection de fondus dans une sequence d'images
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US8582656B2 (en) 2007-04-13 2013-11-12 Apple Inc. Method and system for video encoding and decoding
US8619874B2 (en) * 2007-04-13 2013-12-31 Apple Inc. Method and system for video encoding and decoding
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US8111929B2 (en) * 2008-02-29 2012-02-07 Interra Systems Inc. Method and system to detect and quantify blockiness in video files
US8326075B2 (en) * 2008-09-11 2012-12-04 Google Inc. System and method for video encoding using adaptive loop filter
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US9154799B2 (en) 2011-04-07 2015-10-06 Google Inc. Encoding and decoding motion via image segmentation
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JP2611607B2 (ja) * 1992-06-29 1997-05-21 日本ビクター株式会社 シーンチェンジ検出装置
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Also Published As

Publication number Publication date
CN1098599C (zh) 2003-01-08
JPH08228356A (ja) 1996-09-03
EP0710031B1 (en) 2001-08-01
DE69521966T2 (de) 2002-05-29
JP3933718B2 (ja) 2007-06-20
KR100361721B1 (ko) 2003-02-05
CN1137724A (zh) 1996-12-11
KR960016580A (ko) 1996-05-22
EP0710031A2 (en) 1996-05-01
US5561477A (en) 1996-10-01
EP0710031A3 (en) 1999-01-20
DE69521966D1 (de) 2001-09-06

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