WO2015139206A1 - Procédés de codage vidéo 3d - Google Patents

Procédés de codage vidéo 3d Download PDF

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Publication number
WO2015139206A1
WO2015139206A1 PCT/CN2014/073617 CN2014073617W WO2015139206A1 WO 2015139206 A1 WO2015139206 A1 WO 2015139206A1 CN 2014073617 W CN2014073617 W CN 2014073617W WO 2015139206 A1 WO2015139206 A1 WO 2015139206A1
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WO
WIPO (PCT)
Prior art keywords
size
mpi
level
mode
sub
Prior art date
Application number
PCT/CN2014/073617
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English (en)
Inventor
Han HUANG
Kai Zhang
Jicheng An
Xianguo Zhang
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/CN2014/073617 priority Critical patent/WO2015139206A1/fr
Publication of WO2015139206A1 publication Critical patent/WO2015139206A1/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
    • H04N19/50—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 video processing.
  • the present invention relates to methods for 3D video coding.
  • 3D video coding 3DVC is developed for encoding or decoding video data of multiple views simultaneously captured by several cameras. Since all cameras capture the same scene from different viewpoints, multi-view video data contains a large amount of inter-view redundancy.
  • additional tools such as inter-view motion parameter prediction (IvMC), inter-view disparity compensation (IvDC), view synthesis prediction (VSP), and advanced residual prediction (ARP) [1] have been integrated to conventional 3D-HEVC (High Efficiency Video Coding) , MV-HEVC or 3D-AVC (Advanced Video Coding) codec.
  • IvMC, IvDC, VSP and their variations are used to construct merging candidates in addition to the HEVC merging candidate list.
  • motion parameter inheritance MPI
  • texture merging candidate is used to construct additional merging candidate.
  • a disparity vector such as the well-known neighboring block disparity vector (NBDV) or the depth-oriented NBDV (DoNBDV) is derived.
  • NBDV neighboring block disparity vector
  • DoNBDV depth-oriented NBDV
  • IvMC inter-view motion parameter prediction
  • a reference block determined by the derived DV is fetched from the already coded picture in the reference view.
  • this reference block is coded using motion compensated prediction (MCP)
  • MCP motion compensated prediction
  • motion parameters either at sub-PU level or PU level, are added as an additional merging candidate of the current PU.
  • a depth block is fetched from a reference view depth image and used as an estimator for the depth information of the current PU.
  • the current processed PU is divided into multiple sub-PUs.
  • the size of sub-PU can be 8x4 or 4x8, and is determined by the size of PU or the depth values in the 4 corners of the current processed PU's corresponding depth block.
  • each sub-PU its corresponding depth sub-block is used to derive a new DV for disparity compensation.
  • the VSP method can also be used as an additional merging candidate in current 3D-HEVC.
  • Fig. 3 The basic concept of the MPI for depth coding in current 3D-HEVC is illustrated in Fig. 3. First, the collocated texture block is fetched from the corresponding texture picture.
  • the associated motion parameters are used as candidate motion parameters for the current depth block.
  • the MPI method is used as an additional merging candidate in current 3D-HEVC.
  • the PU partition modes are shown in Fig. 4.
  • the MPI is always performed at sub-PU level. That is, a PU is first divided into non- overlapping sub-PUs, and then MPI is applied on each sub-PU.
  • the sub-PU level MPI could still generate irregular 8x12/12x8 and bi-predicted 4x8/8x4 MCP blocks that are not in HEVC specification.
  • the DV used in IvMP and VSP is derived from neighboring coded blocks.
  • the assumption is that the DV of current block is the same with that of neighboring blocks. However, such assumption is not always true.
  • Fig. 1 is a diagram illustrating the concept of IvMC.
  • Fig. 2 is a diagram illustrating the concept of VSP.
  • Fig. 3 is a diagram illustrating the concept of MPI.
  • Fig. 4 is a diagram showing the PU partition modes in current 3D-HEVC.
  • PART_2Nx2N and use sub-PU level MPI when PartMode is equal to PART_2Nx2N. Therefore, when MPI is applied and PartMode is not PART_2Nx2N, current PU is not divided into sub-PUs.
  • PartMode is not equal to PART_2Nx2N.
  • the DV can be directly coded or differentially coded.
  • the proposed method is referred to as generalized IvMP (GIvMP).
  • VSP generalized VSP
  • an embodiment of the present invention can be a circuit integrated into a video compression chip or program codes integrated into video compression software to perform the processing described herein.
  • An embodiment of the present invention may also be program codes to be executed on a Digital Signal Processor (DSP) to perform the processing described herein.
  • DSP Digital Signal Processor
  • the invention may also involve a number of functions to be performed by a computer processor, a digital signal processor, a microprocessor, or field programmable gate array (FPGA).
  • processors can be configured to perform particular tasks according to the invention, by executing machine-readable software code or firmware code that defines the particular methods embodied by the invention.
  • the software code or firmware codes may be developed in different programming languages and different format or style.
  • the software code may also be compiled for different target platform.
  • different code formats, styles and languages of software codes and other means of configuring code to perform the tasks in accordance with the invention will not depart from the spirit and scope of the invention.

Landscapes

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

Abstract

Des procédés pour candidat de fusion d'hérédité de paramètres de mouvement dans le codage vidéo 3D sont divulgués. Avec le procédé selon l'invention, les tailles de blocs de prédiction à compensation de mouvement MCP dans le codage vidéo à rendement élévé HEVC 3D sont alignées avec la spécification HEVC et la complexité de calcul de la construction de liste de candidats de fusion est réduite.
PCT/CN2014/073617 2014-03-18 2014-03-18 Procédés de codage vidéo 3d WO2015139206A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/073617 WO2015139206A1 (fr) 2014-03-18 2014-03-18 Procédés de codage vidéo 3d

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/073617 WO2015139206A1 (fr) 2014-03-18 2014-03-18 Procédés de codage vidéo 3d

Publications (1)

Publication Number Publication Date
WO2015139206A1 true WO2015139206A1 (fr) 2015-09-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/073617 WO2015139206A1 (fr) 2014-03-18 2014-03-18 Procédés de codage vidéo 3d

Country Status (1)

Country Link
WO (1) WO2015139206A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101166271A (zh) * 2006-10-16 2008-04-23 华为技术有限公司 一种多视点视频编码中的视点差估计/补偿方法
CN102801995A (zh) * 2012-06-25 2012-11-28 北京大学深圳研究生院 一种基于模板匹配的多视点视频运动和视差矢量预测方法
WO2014029086A1 (fr) * 2012-08-22 2014-02-27 Mediatek Singapore Pte. Ltd. Procédés d'amélioration de l'héritage des vecteurs de mouvement et la prédiction du mouvement entre vues pour une carte de profondeurs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101166271A (zh) * 2006-10-16 2008-04-23 华为技术有限公司 一种多视点视频编码中的视点差估计/补偿方法
CN102801995A (zh) * 2012-06-25 2012-11-28 北京大学深圳研究生院 一种基于模板匹配的多视点视频运动和视差矢量预测方法
WO2014029086A1 (fr) * 2012-08-22 2014-02-27 Mediatek Singapore Pte. Ltd. Procédés d'amélioration de l'héritage des vecteurs de mouvement et la prédiction du mouvement entre vues pour une carte de profondeurs

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