WO2015051533A1 - Prédiction résiduelle avancée améliorée en codage vidéo 3d - Google Patents

Prédiction résiduelle avancée améliorée en codage vidéo 3d Download PDF

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Publication number
WO2015051533A1
WO2015051533A1 PCT/CN2013/085049 CN2013085049W WO2015051533A1 WO 2015051533 A1 WO2015051533 A1 WO 2015051533A1 CN 2013085049 W CN2013085049 W CN 2013085049W WO 2015051533 A1 WO2015051533 A1 WO 2015051533A1
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WO
WIPO (PCT)
Prior art keywords
derived
block
candidate
aligned
candidates
Prior art date
Application number
PCT/CN2013/085049
Other languages
English (en)
Inventor
Kai Zhang
Jicheng An
Jian-Liang Lin
Original Assignee
Mediatek Singapore Pte. Ltd.
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 Mediatek Singapore Pte. Ltd. filed Critical Mediatek Singapore Pte. Ltd.
Priority to PCT/CN2013/085049 priority Critical patent/WO2015051533A1/fr
Publication of WO2015051533A1 publication Critical patent/WO2015051533A1/fr

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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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/597—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/147—Data rate or code amount at the encoder output according to rate distortion criteria
    • 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
    • H04N19/176—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 block, e.g. a macroblock
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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

Definitions

  • the invention relates generally to Three-Dimensional (3D) video processing.
  • the presented invention relates to advanced residual prediction.
  • ARP advanced residual prediction
  • the base view is considered as a mirror of the current view.
  • a mirror block is located with an estimated disparity vector (DV) and a mirror reference block for the mirror block is located using the same motion vector (MV) as the current block.
  • DV disparity vector
  • MV motion vector
  • Pseudo residues are generated by subtracting the reconstructed samples in the mirror block and in the mirror reference block. Then pseudo residues are used to predict the real residues of the current block.
  • Fig. 1 depicts a sketch of ARP.
  • a coding unit CU can decide to use the pseudo residual prediction or not.
  • the estimated DV is derived by a neighbouring block disparity vector (NBDV) procedure.
  • NBDV neighbouring block disparity vector
  • the first encountered DV from a temporal or spatial neighbouring block is utilized by ARP as the estimated DV for the current block. Since such an estimated DV is not accurate enough, pseudo residual prediction may be inefficient in some cases.
  • Fig. 2 is a diagram illustrating the order to fill the DV candidate list
  • FIG. 3 is a diagram illustrating the aligned temporal DV and the temporal DV
  • Fig. 5 is a diagram illustrating the derivation of DMV
  • Fig. 7 is a diagram illustrating exemplary reference blocks.
  • ADVD adaptive disparity vector derivation
  • three DV candidates are derived from temporal and spatial neighbouring blocks.
  • the candidate list is filled according to the order depicted in Fig. 2.
  • the aligned temporal DV is obtained from the aligned block, which is located by a scaled MV to the collocated picture, as depicted in Fig. 3.
  • the aligned block can be obtained as follows.
  • the left-top coordinate of the aligned block is equal to the left-top coordinate of a reference block inside or outside of the current block, added by the MV of the current block scaled to the collocated picture.
  • Fig. 7 demonstrates exemplary reference blocks.
  • a new DV candidate is appended into the list only if it is not equal to any DV candidate already in the list.
  • An encoder can determine the best DV candidate used in ARP according to the RDO criterion, and signal the index to the decoder.
  • An advanced temporal residual prediction (ATRP) method is proposed for the disparity compensated prediction.
  • ATRP the disparity parameters of the current PU are applied to the corresponding block in a temporal reference picture in the same view to generate the reference residual in temporal direction.
  • the corresponding block in the temporal reference picture is located by a derived motion vector (DMV), which is the motion vector (MV) of the reference block which the current DV is pointing to in the reference view.
  • DMV derived motion vector
  • the reference block can be obtained as follows.
  • the left-top coordinate of the reference block is equal to the left-top coordinate of a reference block inside or outside of the current block, added by the DV of the current block.
  • Fig. 7 demonstrates exemplary reference blocks.
  • the concept of proposed ATRP is illustrated in Fig. 4, and the derivation of DMV is illustrated in Fig. 5.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

L'invention propose de déplacer des éléments de syntaxe associés au codage HEVC 3D de l'en-tête de segment de tranche vers l'extension de l'en-tête de segment de tranche. Ainsi, l'en-tête de segment de tranche en codage HEVC 3D peut être compatible avec celui en codage HEVC.
PCT/CN2013/085049 2013-10-11 2013-10-11 Prédiction résiduelle avancée améliorée en codage vidéo 3d WO2015051533A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/085049 WO2015051533A1 (fr) 2013-10-11 2013-10-11 Prédiction résiduelle avancée améliorée en codage vidéo 3d

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/085049 WO2015051533A1 (fr) 2013-10-11 2013-10-11 Prédiction résiduelle avancée améliorée en codage vidéo 3d

Publications (1)

Publication Number Publication Date
WO2015051533A1 true WO2015051533A1 (fr) 2015-04-16

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PCT/CN2013/085049 WO2015051533A1 (fr) 2013-10-11 2013-10-11 Prédiction résiduelle avancée améliorée en codage vidéo 3d

Country Status (1)

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WO (1) WO2015051533A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101785317A (zh) * 2007-08-15 2010-07-21 汤姆逊许可证公司 使用区域视差向量的多视角编码视频中的运动跳过模式的方法和装置
WO2013053309A1 (fr) * 2011-10-11 2013-04-18 Mediatek Inc. Procédé et appareil de dérivation de vecteur de mouvement et de vecteur de disparité pour un codage vidéo 3d et un codage hevc
KR20130039429A (ko) * 2011-10-12 2013-04-22 주식회사 케이티 ＭＶＤ를 이용한 ｂｉ-ｐｒｅｄｉｃｔｉｖｅ ｔｅｍｐｏｒａｌ ｍｏｔｉｏｎ ｖｅｃｔｏｒ ｄｅｒｉｖａｔｉｏｎ 방법
CN103152563A (zh) * 2011-11-07 2013-06-12 吴秀美 视频数据的解码设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101785317A (zh) * 2007-08-15 2010-07-21 汤姆逊许可证公司 使用区域视差向量的多视角编码视频中的运动跳过模式的方法和装置
WO2013053309A1 (fr) * 2011-10-11 2013-04-18 Mediatek Inc. Procédé et appareil de dérivation de vecteur de mouvement et de vecteur de disparité pour un codage vidéo 3d et un codage hevc
KR20130039429A (ko) * 2011-10-12 2013-04-22 주식회사 케이티 ＭＶＤ를 이용한 ｂｉ-ｐｒｅｄｉｃｔｉｖｅ ｔｅｍｐｏｒａｌ ｍｏｔｉｏｎ ｖｅｃｔｏｒ ｄｅｒｉｖａｔｉｏｎ 방법
CN103152563A (zh) * 2011-11-07 2013-06-12 吴秀美 视频数据的解码设备

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