CA3091657C - Appareil de codage video, appareil de decodage video et methodes associees - Google Patents

Appareil de codage video, appareil de decodage video et methodes associees Download PDF

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Publication number
CA3091657C
CA3091657C CA3091657A CA3091657A CA3091657C CA 3091657 C CA3091657 C CA 3091657C CA 3091657 A CA3091657 A CA 3091657A CA 3091657 A CA3091657 A CA 3091657A CA 3091657 C CA3091657 C CA 3091657C
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CA
Canada
Prior art keywords
block
available
blocks
available blocks
motion vector
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.)
Active
Application number
CA3091657A
Other languages
English (en)
Other versions
CA3091657A1 (fr
Inventor
Saori Asaka
Takeshi Chujoh
Akiyuki Tanizawa
Goki Yasuda
Naofumi Wada
Takashi Watanabe
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to CA3091657A priority Critical patent/CA3091657C/fr
Priority to CA3188289A priority patent/CA3188289A1/fr
Publication of CA3091657A1 publication Critical patent/CA3091657A1/fr
Application granted granted Critical
Publication of CA3091657C publication Critical patent/CA3091657C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H04N19/10—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
    • H04N19/1887—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 variable length codeword
    • 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
    • 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
    • H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • 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
    • H04N19/50—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
    • H04N19/513—Processing of motion vectors
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

ABRÉGÉ : Il est décrit un appareil de décodage vidéo qui améliore les degrés de latitude pour calculer un vecteur de mouvement en sélectionnant un des blocs encloisonnés. Lappareil de décodage vidéo comprend un circuit de traitement configuré pour : acquérir au moins un bloc disponible ayant un vecteur de mouvement de blocs décodés adjacents à un bloc à être décodé et un nombre des blocs disponibles; sélectionner un premier bloc à partir des blocs disponibles; sélectionner une pluralité de mots-codes daprès le nombre de blocs disponibles; et décoder les données de sélection spécifiant le premier bloc parmi les blocs disponibles en utilisant un tableau de codes correspondants au premier bloc des blocs disponibles, le tableau de codes comprenant un index et les mots-codes correspondants à lindex, et le bloc à être décodé au moyen dun vecteur de mouvement du premier bloc, dans lequel un nombre de lindex est déterminé en fonction du nombre de blocs disponibles. Date reçue / Date Received 2020-08-31
CA3091657A 2009-06-18 2009-06-18 Appareil de codage video, appareil de decodage video et methodes associees Active CA3091657C (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA3091657A CA3091657C (fr) 2009-06-18 2009-06-18 Appareil de codage video, appareil de decodage video et methodes associees
CA3188289A CA3188289A1 (fr) 2009-06-18 2009-06-18 Appareil de codage video, appareil de decodage video et methodes associees

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA2845186A CA2845186C (fr) 2009-06-18 2009-06-18 Dispositif de codage d'images dynamiques et dispositif de decodage d'images dynamiques
CA3048386A CA3048386C (fr) 2009-06-18 2009-06-18 Appareil de codage video, appareil de decodage video et methodes associees
CA3091657A CA3091657C (fr) 2009-06-18 2009-06-18 Appareil de codage video, appareil de decodage video et methodes associees

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA3048386A Division CA3048386C (fr) 2009-06-18 2009-06-18 Appareil de codage video, appareil de decodage video et methodes associees

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA3188289A Division CA3188289A1 (fr) 2009-06-18 2009-06-18 Appareil de codage video, appareil de decodage video et methodes associees

Publications (2)

Publication Number Publication Date
CA3091657A1 CA3091657A1 (fr) 2010-12-23
CA3091657C true CA3091657C (fr) 2023-03-28

Family

ID=50385559

Family Applications (7)

Application Number Title Priority Date Filing Date
CA2845186A Active CA2845186C (fr) 2009-06-18 2009-06-18 Dispositif de codage d'images dynamiques et dispositif de decodage d'images dynamiques
CA3188289A Pending CA3188289A1 (fr) 2009-06-18 2009-06-18 Appareil de codage video, appareil de decodage video et methodes associees
CA3091658A Active CA3091658C (fr) 2009-06-18 2009-06-18 Appareil de codage video, appareil de decodage video et methodes associees
CA2969723A Active CA2969723C (fr) 2009-06-18 2009-06-18 Dispositif de codage d'images dynamiques et dispositif de decodage d'images dynamiques
CA2929824A Active CA2929824C (fr) 2009-06-18 2009-06-18 Dispositif de codage d'images dynamiques et dispositif de decodage d'images dynamiques
CA3048386A Active CA3048386C (fr) 2009-06-18 2009-06-18 Appareil de codage video, appareil de decodage video et methodes associees
CA3091657A Active CA3091657C (fr) 2009-06-18 2009-06-18 Appareil de codage video, appareil de decodage video et methodes associees

Family Applications Before (6)

Application Number Title Priority Date Filing Date
CA2845186A Active CA2845186C (fr) 2009-06-18 2009-06-18 Dispositif de codage d'images dynamiques et dispositif de decodage d'images dynamiques
CA3188289A Pending CA3188289A1 (fr) 2009-06-18 2009-06-18 Appareil de codage video, appareil de decodage video et methodes associees
CA3091658A Active CA3091658C (fr) 2009-06-18 2009-06-18 Appareil de codage video, appareil de decodage video et methodes associees
CA2969723A Active CA2969723C (fr) 2009-06-18 2009-06-18 Dispositif de codage d'images dynamiques et dispositif de decodage d'images dynamiques
CA2929824A Active CA2929824C (fr) 2009-06-18 2009-06-18 Dispositif de codage d'images dynamiques et dispositif de decodage d'images dynamiques
CA3048386A Active CA3048386C (fr) 2009-06-18 2009-06-18 Appareil de codage video, appareil de decodage video et methodes associees

Country Status (1)

Country Link
CA (7) CA2845186C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102823248B (zh) 2010-04-08 2015-06-24 株式会社东芝 图像编码方法以及图像编码装置

Also Published As

Publication number Publication date
CA2845186A1 (fr) 2010-12-23
CA3091658C (fr) 2022-10-04
CA3091658A1 (fr) 2010-12-23
CA3048386A1 (fr) 2010-12-23
CA2969723C (fr) 2019-08-27
CA2929824A1 (fr) 2010-12-23
CA3188289A1 (fr) 2010-12-23
CA2929824C (fr) 2017-07-18
CA2969723A1 (fr) 2010-12-23
CA3048386C (fr) 2022-07-19
CA3091657A1 (fr) 2010-12-23
CA2845186C (fr) 2016-08-16

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